<DOCUMENT>
 <TYPE>EX-10.12
 <SEQUENCE>3
 <FILENAME>o09104exv10w12.txt
 <DESCRIPTION>PETROLEUM CONTRACT
 <TEXT>
 <PAGE>
                                                                    Exhibit 10.12
                                PETROLEUM CONTRACT
                                        FOR
                            ZITONG BLOCK, SICHUAN BASIN
                                        OF
                          THE PEOPLE'S REPUBLIC OF CHINA
                                  BEIJING, CHINA
                                  SEPTEMBER, 2002
 <PAGE>
                                     CONTRACT
                    FOR EXPLORATION, DEVELOPMENT AND PRODUCTION
                          IN ZITONG BLOCK, SICHUAN BASIN
                                        OF
                          THE PEOPLE'S REPUBLIC OF CHINA
                                      BETWEEN
                       CHINA NATIONAL PETROLEUM CORPORATION
                                        AND
                             PAN-CHINA RESOURCES LTD.
                                  BEIJING, CHINA
                                SEPTEMBER 19, 2002
 <PAGE>
                                 TABLE OF CONTENTS
 Preamble.......................................................................1
 Article 1    Definitions.......................................................2
 Article 2    Objective of the Contract.........................................7
 Article 3    Contract Area.....................................................8
 Article 4    Contract Term.....................................................9
 Article 5    Relinquishment of the Contract Area..............................12
 Article 6    Minimum Exploration Work Commitment
              and Expected Minimum Exploration Expenditures....................13
 Article 7    Management Organization and Its Functions........................16
 Article 8    Operator.........................................................21
 Article 9    Assistance Provided by CNPC......................................27
 Article 10   Work Program and Budget..........................................29
 Article 11   Determination of Commerciality...................................31
 Article 12   Financing and Cost Recovery......................................35
 Article 13   Crude Oil Production and Allocation..............................37
 Article 14   Quality, Quantity, Price and Destination of Crude Oil............42
 Article 15   Preference to the Employment of the Chinese Personnel,
              Goods and Services...............................................46
 Article 16   Training of Chinese Personnel and Transfer of Technology.........47
 Article 17   Ownership of Assets and Data.....................................49
 Article 18   Associated Natural Gas and Non-associated Natural Gas............50
 Article 19   Accounting, Auditing and Personnel Costs.........................60
 Article 20   Taxation.........................................................62
 Article 21   Insurance........................................................63
 Article 22   Confidentiality..................................................65
 Article 23   Assignment.......................................................67
 Article 24   Environmental Protection and Safety..............................69
 Article 25   Force Majeure....................................................70
 Article 26   Consultation and Arbitration.....................................71
 Article 27   Appointment of Expert............................................73
 Article 28   Effectiveness and Termination of the Contract....................74
 Article 29   The Applicable Law...............................................76
 Article 30   Language of Contract and Working Language........................77
 Article 31   Miscellaneous....................................................78
 Annex I      Geographic Location and Co-ordinates of the Connecting Points
              of the Boundary Lines of the Contract Area / Map of Zitong
              Blocks Showing Corner Points.....................................80
 Annex II     Accounting Procedure.............................................82
 Annex III    Personnel Costs.................................................105
 Annex IV     Training of Chinese Personnel and Transfer of Technology........113
 Annex V      Data Control....................................................122
 Annex VI     Letter of Understanding on Existing Wells.......................129
 <PAGE>
                                     PREAMBLE
       This Contract is entered into in Beijing on this 19th day of September,
 2002, by and between China National Petroleum Corporation (hereinafter
 abbreviated as "CNPC"), a company organized and existing under the laws of the
 People's Republic of China, having its headquarters domiciled in Beijing, the
 People's Republic of China as one part; and;
       Pan-China Resources Ltd. (hereinafter referred to as the "Contractor"), a
 company organized and existing under the law of the British Virgin Islands,
 having its headquarters domiciled in Calgary, Alberta, Canada as the other part.
                                    WITNESSETH
       WHEREAS, all Petroleum resources under the territory, internal waters,
 territorial sea and continental shelf of the People's Republic of China and
 within the limits of national jurisdiction of the People's Republic of China are
 owned by the People's Republic of China;
       WHEREAS, CNPC shall be responsible for business matters in respect of the
 exploitation of land Petroleum resources in cooperation with foreign
 enterprises, negotiating, entering into and implementing contracts for the
 exploitation of land Petroleum resources in cooperation with foreign enterprises
 and have the exclusive right to explore for, develop and produce the Petroleum
 in cooperation with foreign enterprises in areas approved by the State Council
 for exploitation of land Petroleum resources in cooperation with foreign
 enterprises in accordance with the "Regulations of the People's Republic of
 China Concerning the Exploitation of Onshore Petroleum Resources in Cooperation
 with Foreign Enterprises" (hereafter referred to as the "Petroleum
 Regulations"), promulgated on October 7, 1993 and amended on September 23, 2001
 by the State Council of the People's Republic of China; and
       WHEREAS, the Contractor desires and agrees to provide funds and apply its
 appropriate and advanced technology and managerial experience to cooperate with
 CNPC for the exploitation of Petroleum resources within the Contract Area and
 agrees to be subject to the laws, decrees, and other rules and regulations of
 the People's Republic of China in the implementation of the Contract.
       NOW, THEREFORE, IT IS MUTUALLY AGREED as hereafter set forth:
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                                        1
                          Zitong Block Petroleum Contract
 <PAGE>
                              ARTICLE 1   DEFINITIONS
       The following words and terms used in the Contract shall have, unless
 otherwise specified herein, the following meanings:
       1.1 "Petroleum" means Crude Oil and Natural Gas deposited in the
 subsurface and being extracted or already extracted, including any valuable
 non-hydrocarbon substances produced in association with Crude Oil and/or Natural
 Gas separated or extracted therefrom.
       1.2 "Crude Oil" means solid and liquid hydrocarbons in their natural
 state, including any liquid hydrocarbons extracted from Natural Gas but
 excluding liquefied methane (CH4).
       1.3 "Natural Gas" means Non-associated Natural Gas and Associated Natural
 Gas in their natural state.
       1.4 "Non-associated Natural Gas" means all gaseous hydrocarbons produced
 from gas reservoirs, including wet gas, dry gas and residue gas remaining after
 the extraction of liquid hydrocarbons from wet gas.
       1.5 "Associated Natural Gas" means all gaseous hydrocarbons produced in
 association with Crude Oil from oil reservoirs, including residue gas remaining
 after the extraction of liquid hydrocarbons therefrom.
       1.6 "Condensate" means all liquid hydrocarbons produced in association
 with Non-associated Natural Gas from gas reservoirs, including all liquid
 hydrocarbons separated or extracted from the Non-associated Natural Gas.
       1.7 "Oil Field" means an accumulation of Petroleum within the Contract
 Area composed of one or several overlapping oil-bearing zones, within one trap
 or within associated traps of the same independent geological structure, which
 may or may not be complicated by faulting, and which has been determined to be
 of commercial value in accordance with the procedures stipulated in Article 11
 hereof.
       1.8 "Gas Field" means an accumulation of Petroleum within the Contract
 Area composed of one or several overlapping gas-bearing zones, within one trap
 or within associated traps of the same independent geological structure, which
 may or may not be complicated by faulting, and which has been determined to be
 of commercial value in accordance with the procedures stipulated in Article 18
 hereof.
       1.9 "Petroleum Operations" means the Exploration Operations, the
 Development Operations, the Production Operations, and other activities related
 to these Operations carried out under the Contract.
       1.10 "Exploration Operations" means operations carried out for the purpose
 of discovering Petroleum-bearing traps by means of geological, geophysical,
 geochemical and other methods including exploratory well drilling; all the work
 undertaken to determine the commerciality of traps in which Petroleum has been
 discovered including Appraisal Well drilling and feasibility studies,
 formulation of the Overall Development Program; and activities related to all
 such operations.
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                                        2
                          Zitong Block Petroleum Contract
 <PAGE>
       1.11 "Development Operations" means operations carried out for the
 realization of Petroleum production from the date of approval of the Overall
 Development Program for any Oil Field and/or Gas Field by the Department or
 Unit, including design, construction, installation, drilling, and the related
 research work as well as production activities carried out before the Date of
 Commencement of Commercial Production.
       1.12 "Production Operations" means operations and all activities related
 thereto carried out for Petroleum production of each Oil Field and/or Gas Field
 from the Date of Commencement of Commercial Production, such as extraction,
 injection, stimulation, treatment, storage, transportation, lifting, etc.
       1.13 "Basic Block" means a section of the surface of the earth bounded by
 the segments of longitude and latitude of equal distance of ten (10) minutes.
       1.14 "Contract Area " means a surface area demarcated with geographic
 coordinates for the cooperative exploitation of Petroleum resources, and in the
 Contract, means the surface area stipulated in Article 3.1 hereof.
       1.15 "Exploration Area" means the surface area within the Contract Area
 which has not been relinquished before the expiration of the exploration period
 and in which Development Operations and Production Operations have not begun.
       1.16 "Development Area" means a portion of the Contract Area covering an
 Oil Field and/or Gas Field which has been designated for development. The
 Development Area(s) shall be proposed by the Operator, demarcated by the Joint
 Management Committee ("JMC") and delineated as such in the Overall Development
 Program approved by the Department or Unit. The Development Area shall
 automatically cease to be in force as of the date of approval of the Production
 Area by CNPC.
       1.17 "Production Area" means a surface area within any Development Area
 for the purpose of the performance of the Production Operations within the said
 Development Area after completion of the Development Operations. The Production
 Area proposed by the Operator, demarcated by JMC shall be submitted to CNPC for
 approval before the Date of Commencement of Commercial Production.
       1.18 "Date of Commencement of Commercial Production" means the date of
 commencement of the production period for Crude Oil and/or Natural Gas from any
 Oil Field and/or Gas Field announced by JMC in accordance with the provisions of
 Article 7.2.5 hereof after the completion of the Development Operations as
 provided for in the approved Overall Development Program for the said Oil Field
 and/or Gas Field, and after approval by CNPC.
       1.19 "Calendar Year" means a period of twelve (12) consecutive Gregorian
 months under the Gregorian Calendar, beginning on the first day of January and
 ending on the thirty-first day of December in the same year.
       1.20 "Contract Year" means a period of twelve (12) consecutive Gregorian
 months under the Gregorian Calendar, within the term of the Contract, beginning
 on the Date of Commencement of the Implementation of the Contract or any
 anniversary thereof.
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                                        3
                          Zitong Block Petroleum Contract
 <PAGE>
       1.21 "Production Year" means in respect of each Oil Field and/or Gas
 Field, a period of twelve (12) consecutive Gregorian months under the Gregorian
 Calendar, beginning on the Date of Commencement of Commercial Production of such
 Field or any anniversary thereof.
       1.22 "Calendar Quarter" means a period of three (3) consecutive Gregorian
 months under the Gregorian Calendar, beginning on the first day of January, the
 first day of April, the first day of July, or the first day of October.
       1.23 "Exploratory Well" means any Wildcat and/or Appraisal Well drilled
 within the Contract Area during the exploration period, including dry hole(s)
 and discovery well(s).
       1.24 "Wildcat" means a well drilled on any geological trap for the purpose
 of searching for Petroleum accumulations, including wells drilled for the
 purpose of obtaining geological and geophysical parameters.
       1.25 "Appraisal Well" means an Exploratory Well drilled for the purpose of
 evaluating the commerciality of a geological trap in which Petroleum has been
 discovered.
       1.26 "Development Well" means a well drilled after the date of approval of
 the Overall Development Program for an Oil Field and/or Gas Field for the
 purpose of producing Petroleum, increasing production or accelerating extraction
 of Petroleum, including production wells, injection wells and dry holes.
       1.27 "Work Program" means all types of plans formulated for the
 performance of the Petroleum Operations, including plans for exploration,
 development and production.
       1.28 "Overall Development Program" means a plan prepared by the Operator
 for the development of an Oil Field and/or Gas Field which has been reviewed and
 adopted by JMC, confirmed by CNPC and approved by the Department or Unit, and
 such plan shall include, but shall not be limited to, recoverable reserves, the
 Development Well pattern, master design, production profile, economic analysis
 and a schedule of the Development Operations.
       1.29 "Deemed Interest" means interest on the development costs calculated
 in accordance with the rate of interest stipulated in Article 12.2.3.2 hereof
 when the development costs incurred in each Oil Field and/or Gas Field within
 the Contract Area are recovered by the Parties.
       1.30 "Oil Field and/or Gas Field Straddling a Boundary" means an Oil Field
 and/or Gas Field extending from the Contract Area to one or more other contract
 areas and/or areas in respect of which no Petroleum contracts have been signed.
       1.31 "Annual Gross Production of Natural Gas" means the total amount of
 Natural Gas produced from each Oil Field and/or Gas Field within the Contract
 Area considered separately in each Calendar Year, less the amount of Natural Gas
 used for Petroleum Operations and the amount of losses, which is saved and
 measured by a measuring device at the Delivery Point as specified in Article
 14.3.1 and Article 18.5.2 hereof.
       1.32 "Annual Gross Production of Crude Oil" means the total amount of
 Crude Oil
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                                        4
                          Zitong Block Petroleum Contract
 <PAGE>
 produced from each Oil Field within the Contract Area considered separately in
 each Calendar Year, less the amount of Crude Oil used for Petroleum Operations
 and the amount of losses, which is saved and measured by a measuring device at
 the Delivery Point as specified in Article 14.3.1 hereof.
       1.33 "Basement" means igneous rocks, metamorphic rocks or rocks of such
 nature which, or formations below which, could not contain Petroleum deposits in
 accordance with the knowledge generally accepted in the international Petroleum
 industry and shall also include such impenetrable rock substances as salt domes,
 mud domes and any other rocks which make further drilling impracticable or
 economically unjustifiable by the modern drilling technology normally utilized
 in the international Petroleum industry.
       1.34 "Contractor" means the Contractor specified in the Preamble hereto,
 including assignee(s) in accordance with Article 23 hereof.
       1.35 "Parties" means CNPC and the Contractor.
       1.36 "Party" means either of the Parties.
       1.37 "Operator" means the entity responsible for the performance of the
 Petroleum Operations under the Contract.
       1.38 "Subcontractor" means an entity which provides the Operator with
 goods or services for the purpose of the Contract.
       1.39 "Third Party" means any individual or entity except CNPC, the
 Contractor and any of their Affiliates.
       1.40 "Chinese Personnel" means any citizen of the People's Republic of
 China, including CNPC personnel and Chinese citizens employed by the Contractor
 and/or the Subcontractor(s), involved in Petroleum Operations under the
 Contract.
       1.41 "Expatriate Employee" means any person employed by the Contractor,
 Subcontractor(s), or CNPC who is not a citizen of the People's Republic of
 China. Overseas Chinese who reside abroad and have the nationality of the
 People's Republic of China and other Chinese abroad, when they are employed by
 the Contractor, Subcontractor(s) or CNPC, shall also be deemed to be Expatriate
 Employees within the scope of the Contract.
       1.42 "Affiliate" means in respect of the Contractor:
       (a) any entity in which any company comprising Contractor directly or
 indirectly holds fifty percent (50%) or more of the voting rights carried by its
 share capital; or
       (b) any entity which directly or indirectly holds fifty percent (50%) or
 more of the aforesaid voting rights of any company comprising the Contractor; or
       (c) any other entity whose aforesaid voting rights are held by an entity
 mentioned in (b) above in an amount of fifty percent (50%) or more.
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                                        5
                          Zitong Block Petroleum Contract
 <PAGE>
       "Affiliate" means, in respect of CNPC, any subsidiary, branch, or regional
 corporation of CNPC and any entity in which CNPC directly or indirectly holds
 fifty percent (50%) or more of the voting rights carried by its share capital.
       1.43 "Delivery Point" means a point or points agreed upon by the Parties
 for the delivery of Petroleum located within or outside the Contract Area and
 specified in the Overall Development Program.
       1.44 "Department or Unit" means the department or unit which is authorized
 by the State Council of the People's Republic of China to be responsible for
 administration of the Petroleum industry of the People's Republic of China.
       1.45 "Date of Commencement of the Implementation of the Contract" means
 the first day of the month following the month in which the Contractor has
 received the notification from CNPC of the approval of the Contract by the
 Ministry of Foreign Trade and Economic Cooperation of the People's Republic of
 China.
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                                        6
                          Zitong Block Petroleum Contract
 <PAGE>
                       ARTICLE 2   OBJECTIVE OF THE CONTRACT
       2.1 The objective of the Contract is to explore for, develop and produce
 Petroleum that may exist in the Contract Area.
       2.2 The Contractor shall apply its appropriate and advanced technology and
 assign its competent experts to perform the Petroleum Operations.
       2.3 During the performance of the Petroleum Operations, the Contractor
 shall transfer its technology to the Chinese Personnel and train them in
 accordance with Article 16 hereof and Annex IV - Training of Chinese Personnel
 and Transfer of Technology hereto in order to enable CNPC to take over the
 Production Operations of any Oil Field and/or Gas Field in accordance with
 Article 8.8 hereof.
       2.4 The Contractor shall bear all the exploration costs required for the
 Exploration Operations. In the event that any Oil Field and/or Gas Field is
 discovered within the Contract Area, the development costs of such Oil Field
 and/or Gas Field shall be borne by the Parties in proportion to their
 participating interests: fifty-one percent (51%) by CNPC and forty-nine percent
 (49%) by the Contractor. In the event that CNPC opts to participate at a level
 less than fifty-one percent (51%) of the participating interests, or not to
 participate in the development of the Oil Field and/or Gas Field, the Contractor
 shall bear the remaining development costs necessary for the development of the
 Oil Field and/or Gas Field in accordance with Article 12.1.2 hereof.
       2.5 If any Oil Field and/or Gas Field is discovered within the Contract
 Area, the Petroleum produced therefrom shall, from the Date of Commencement of
 Commercial Production of such Oil Field and/or Gas Field, be allocated in
 accordance with Articles 12, 13 and/or 18 hereof.
       2.6 Nothing contained in the Contract shall be deemed to confer any right
 on the Contractor other than those rights expressly granted hereunder.
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                                        7
                          Zitong Block Petroleum Contract
 <PAGE>
                            ARTICLE 3   CONTRACT AREA
       3.1 The Contract Area as of the date of signature of the Contract includes
 Zitongxi (covering a area of 1,830 square kilometers) and Zitongdong (covering a
 area of 1,730 square kilometers) Blocks covering a total area of Three Thousand
 Five Hundred and Sixty (3,560) square kilometers, known collectively as Zitong
 Block, as marked out by the geographic location and the coordinates of the
 connecting points of the boundary lines shown on Annex I attached hereto.
       The said total area of the Contract Area shall be reduced in accordance
 with Articles 4, 5, 11 and 18 hereof.
       3.2 Except for the rights as expressly provided by the Contract, no right
 is granted in favor of the Contractor to the surface area, lake bed, stream bed,
 subsoil or any natural resources other than Petroleum existing therein, and any
 things under the surface within the Contract Area.
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                                        8
                          Zitong Block Petroleum Contract
 <PAGE>
                            ARTICLE 4   CONTRACT TERM
       4.1 The term of the Contract shall include an exploration period, a
 development period and a production period.
       4.2 The exploration period, beginning on the Date of Commencement of the
 Implementation of the Contract, shall be divided into two (2) phases and shall
 consist of six (6) consecutive Contract Years, unless the Contract is sooner
 terminated, or the exploration period is extended in accordance with Article 25
 hereof and/or Article 4.3 herein. The two (2) phases shall be as follows:
       The first phase of three (3) Contract Years (the first Contract Year
 through the third Contract Year); and
       The second phase of three (3) Contract Years (the fourth Contract Year
 through the sixth Contract Year).
       4.3 Where time is insufficient to complete the appraisal work on a
 Petroleum discovery made shortly before the expiration of the exploration period
 or where the time of the appraisal work on a Petroleum discovery in accordance
 with the appraisal Work Program approved by JMC as stated in Articles 11 and 18
 hereof extends beyond the exploration period, the exploration period as
 described in Article 4.2 herein shall be extended. The period of extension shall
 be proposed by the Contractor and subject to the approval of CNPC and shall be a
 reasonable period of time required to complete the above-mentioned appraisal
 work in order to enable JMC to make a decision on the commerciality of the said
 Petroleum discovery in accordance with Article 11 or 18 hereof, and until the
 Department or Unit approves or finally rejects the Overall Development Program.
       4.4 The development period of any Oil Field and/or Gas Field within the
 Contract Area shall begin on the date of approval by the Department or Unit of
 the Overall Development Program of the said Oil Field and/or Gas Field, and end
 on the date of the entire completion of the Development Operations set forth in
 the Overall Development Program, excluding the time for carrying out additional
 development projects in the production period in accordance with Article 11.9
 hereof.
       4.5 The production period of any Oil Field and/or Gas Field within the
 Contract Area shall be a period beginning on the Date of Commencement of
 Commercial Production of the said Oil Field and/or Gas Field up to the date of
 the expiration of the production period as specified in the Overall Development
 Program approved by the Department or Unit. However, the period shall not go
 beyond twenty (20) consecutive Production Years beginning on the Date of
 Commencement of Commercial Production of the said Oil Field and/or Gas Field,
 unless otherwise provided in Article 4.6 herein and Article 18.2 or 25 hereof.
 Under such circumstances as where the construction of an Oil Field and/or Gas
 Field is to be conducted on a large scale, and the time span required therefor
 is long, or where separate production of each of the multiple oil or gas
 producing zones of an Oil Field and/or Gas Field is required, or under other
 special circumstances, the production period thereof shall, when it is
 necessary, be properly extended with the approval of the Department or Unit.
       4.6 Suspension or abandonment of production of an Oil Field and/or Gas
 Field.
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                                        9
                          Zitong Block Petroleum Contract
 <PAGE>
       4.6.1 Suspension of production from Oil Field and/or Gas Field within the
 production period.
       In the event that the Parties agree to suspend temporarily production from
 an Oil Field and/or Gas Field, which has entered into commercial production, the
 Production Area covered by that Oil Field and/or Gas Field may be retained
 within the Contract Area. In no event shall the period of such retention extend
 beyond the date of the expiration of the production period of that Oil Field
 and/or Gas Field, except as otherwise provided in Article 25.4 hereof. The
 duration of the relevant period of production suspension and the arrangement for
 the maintenance operations during the aforesaid period of suspension shall be
 proposed by the Operator, and shall be decided by JMC through discussion. With
 respect to the aforesaid Oil Field and/or Gas Field which has been suspended and
 retained within the Contract Area, in the event that production is restored
 during the period of such retention, the production period of that Oil Field
 and/or Gas Field shall be extended correspondingly.
       In the event that the Parties fail to reach an agreement on the
 restoration of production by the expiration of the production suspension period
 decided by JMC through discussion, the Party who wishes to restore production
 shall have the right to restore production solely. The other Party may later
 elect to participate in production but shall have no rights or obligations in
 respect of such Oil Field and/or Gas Field for the solely restored production
 period.
       4.6.2 Abandonment of production from Oil Field and/or Gas Field within the
 production period.
       4.6.2.1 During the production period, either Party to the Contract may
 propose to abandon production from any Oil Field and/or Gas Field within the
 Contract Area, provided, however, that prior written notice shall be given to
 the other Party to the Contract. The other Party shall make a response in
 writing within ninety (90) days from the date on which the said notice is
 received. If the other Party also agrees to abandon production from the said Oil
 Field and/or Gas Field, then abandonment costs shall be paid by the Parties in
 proportion to their participating interests in such Oil Field and/or Gas Field.
 The Parties shall abandon such Oil Field and/or Gas Field in accordance with
 procedure agreed on by the Parties.
       From the date on which the abandonment is completed, the production period
 of such Oil Field and/or Gas Field shall be terminated and such Oil Field and/or
 Gas Field shall be excluded from the Contract Area.
       4.6.2.2 If the Contractor notifies CNPC in writing of its decision to
 abandon production from an Oil Field and/or Gas Field, while CNPC decides not to
 abandon production from such Oil Field and/or Gas Field, then from the date on
 which the Contractor receives CNPC's written response of its aforesaid decision,
 namely Abandonment Date, all of the Contractor's rights and obligations under
 the Contract in respect of the said Oil Field and/or Gas Field, including, but
 not limited to, the responsibilities for payment of abandonment cost in respect
 of such Oil Field and/or Gas Field, shall be terminated automatically, provided
 that the Contractor shall not transfer to CNPC any of the Contractor's debts,
 liabilities and obligations under this Contract before the Abandonment Date in
 respect of the said Oil Field and/or Gas Field. In addition, the Contractor
 shall undertake its liabilities and obligations under the Contract prior to the
 Abandonment Date. From the Abandonment Date, the production period
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                                        10
                          Zitong Block Petroleum Contract
 <PAGE>
 of said Oil field and/or Gas Field shall be terminated and the said Oil Field
 and/or Gas Field shall be excluded from the Contract Area.
       4.7 The term of the Contract shall not go beyond thirty (30) consecutive
 Contract Years from the Date of Commencement of the Implementation of the
 Contract, unless otherwise stipulated hereunder.
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                                        11
                          Zitong Block Petroleum Contract
 <PAGE>
                 ARTICLE 5   RELINQUISHMENT OF THE CONTRACT AREA
       5.1 The Contractor shall relinquish a portion or portions of the Contract
 Area in accordance with the following provisions:
       5.1.1 At the expiration of the first phase of the exploration period, the
 Contractor shall relinquish thirty percent (30%) of the Contract Area as of the
 date of signature of the Contract. The percentage of such relinquishment may be
 thirty percent (30%) plus or minus five percent (5%) if, after consultation, the
 Parties agree that it is technically necessary, unless otherwise agreed upon by
 the Parties.
       5.1.2 In any of the following cases, the Contractor shall relinquish the
 remaining Contract Area, except for any Development Area and/or Production Area:
       (a) at the expiration of the last phase of the exploration period as
 mentioned in Article 4.2 hereof; or
       (b) at the expiration of the said exploration phase if the Contractor
 exercises its option under Article 6.4 (b) of the Contract; or
       (c) at the expiration of the extended period, in the event that the
 exploration period is extended in accordance with Article 4.3 or Article 25
 hereof.
       5.1.3 For purposes of determining final relinquishment and Development
 Area at the end of the second phase of exploration period, those Wildcats that
 have commenced drilling prior to the end of the sixth year of the exploration
 period, but not yet reached final completion by the end of the second phase of
 exploration period, will be considered to have been drilled within the second
 phase of exploration period and will be counted as earned Wildcats.
 Relinquishment or development decisions related to this associated structure
 will be determined after the wells are tested and appraised or abandoned.
       5.1.4 In the execution of Article 5.1.2 herein a Production Area,
 Development Area or an area corresponding to a trap with a Petroleum discovery
 awaiting appraisal and/or being appraised or included in an Overall Development
 Program awaiting approval shall not be regarded as an area to be relinquished.
       5.1.5 At the expiration of its production period of any Oil Field and/or
 Gas Field within the Contract Area as specified in Article 4.5 hereof, such Oil
 Field and/or Gas Field shall be excluded from the Contract Area.
       5.2 The areas relinquished pursuant to Articles 5.1.1 and 5.1.2 herein
 shall be made up of as few rectangles as possible so as to facilitate further
 Exploration Operations.
       5.3 Within ninety (90) days prior to the date of each relinquishment of
 the Contract area, the Contractor shall submit to CNPC a report on its completed
 Exploration Operations on the areas to be relinquished, including a map showing
 the areas to be relinquished with the geographic location and the co-ordinates
 of the connecting points of the boundary lines. The final map shall be submitted
 to CNPC on or before the date of relinquishment.
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                                        12
                          Zitong Block Petroleum Contract
 <PAGE>
        ARTICLE 6   MINIMUM EXPLORATION WORK COMMITMENT AND EXPECTED MINIMUM
                             EXPLORATION EXPENDITURES
       6.1 The Contractor shall begin to perform the Exploration Operations
 within six (6) months after the Date of Commencement of the Implementation of
 the Contract and shall spud the first Wildcat within twenty-one (21) months
 after the Date of Commencement of the Implementation of the Contract, unless
 otherwise agreed by the Parties.
       6.2 The Contractor shall fulfill the minimum exploration work commitment
 and expected minimum exploration expenditures for each phase of the exploration
 period in accordance with the following provisions:
       6.2.1 During the first phase (three years) of the exploration period, the
 Contractor shall:
       (a)   reprocess seismic data totaling Two Thousand (2,000) line
             kilometers;
       (b)   complete new seismic lines totaling Five Hundred (500) kilometers;
       (c)   drill and complete Two (2) Wildcat wells with footage totaling Seven
             Thousand (7,000) meters; and
       (d)   spend Eighteen Million (18,000,000) US dollars as its expected
             minimum exploration expenditures for such Exploration Operations.
       6.2.2 During the second phase (three years) of the exploration period, the
 Contractor shall:
       (a)   complete new seismic lines totaling Three Hundred and Fifty (350)
             kilometers;
       (b)   drill and complete Two (2) Wildcat wells with footage totaling Seven
             Thousand (7,000) meters; and
       (c)   spend Sixteen Million (16,000,000) US dollars as its expected
             minimum exploration expenditures for such Exploration Operations.
       6.2.3 The Wildcats specified in Articles 6.2.1, and 6.2.2 herein for each
 exploration phase shall not be substituted by Appraisal Wells without the
 consent of CNPC.
       6.2.4 With respect to the minimum exploration work commitment for each
 phase of the exploration period committed by the Contractor in accordance with
 Articles 6.2.1, and 6.2.2 herein, when calculating whether the minimum
 exploration work commitment has been fulfilled, the number of Wildcats and the
 kilometers of seismic lines shall be the basis of such calculation. However, the
 Wildcats abandoned for technical reasons without reaching their predetermined
 geological objective shall not count as the Wildcats actually fulfilled by the
 Contractor hereunder, without the consent of CNPC.
       6.3 The first Wildcat to be drilled on any geological trap shall be
 drilled to a depth and target formation agreed to by the Parties. In case that
 the first Wildcat drilled on any geological trap fails to reach the target
 formation not because of difficulties insurmountable
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                                        13
                          Zitong Block Petroleum Contract
 <PAGE>
 by employing modern drilling technology in conformity with the sound field
 practice, then such Wildcat shall be substituted for by another Wildcat or by an
 Appraisal Well to be drilled on the said geological trap. However, the
 substitute well shall not lead to any change in the minimum exploration work
 commitment assumed by the Contractor in accordance with Article 6.2 herein.
       6.4 At the expiration of the first phase of the exploration period, the
 Contractor has the following options:
       (a)  to enter the next phase and continue exploration; or
       (b) to conduct appraisal and/or Development Operations and Production
 Operations only on a Petroleum discovery in accordance with the procedures under
 Article 11 hereof provided, however, that the minimum exploration work
 commitments up to the date of such expiration of the said exploration phase have
 been fulfilled; and the areas under Article 5.1.2(b) hereof have been
 relinquished; or
       (c)  to terminate the Contract.
       6.5 At the expiration of any phase of the exploration period, if the
 actual exploration work fulfilled by the Contractor is less than the minimum
 exploration work commitment set forth for the said exploration phase, and if the
 Contractor opts to enter the next phase and continue exploration under Article
 6.4 (a) herein, the Contractor shall give reasons to CNPC for the under
 fulfillment, and, with the consent of CNPC, the unfulfilled balance of the said
 phase shall be added to the minimum exploration work commitment for the next
 exploration phase. At any time within the exploration period, if there is any
 commercial discovery, JMC shall, at the request of any Party to the Contract,
 discuss the possibility of amending the exploration work. Any Wildcats and
 seismic lines added by any such amendment shall be deducted from and credited
 against the minimum exploration work commitment.
       6.6 Where the Contractor has fulfilled ahead of time the minimum
 exploration work commitment for any phase of the exploration period, the
 duration of such exploration phase stipulated in Article 4.2 hereof shall not be
 shortened thereby, and if the exploration work actually fulfilled by the
 Contractor exceeds the minimum exploration work commitment for the said
 exploration phase, the excess part shall be deducted from and credited against
 the minimum exploration work commitment for the next exploration phase.
       6.7 If any addition or deduction is made under Article 6.5 or Article 6.6
 herein in regard to the minimum exploration work commitment for any phase of the
 exploration period, the increased or reduced exploration work shall become the
 new minimum exploration work commitment for the Contractor to fulfill in the
 said phase.
       6.8 At the expiration of any phase during the exploration period, if the
 exploration work actually fulfilled by the Contractor is less than the minimum
 exploration work commitment for such phase or less than the new minimum
 exploration work commitment as mentioned in Article 6.7 herein, and if,
 regardless of whether the expected minimum exploration expenditures are
 fulfilled or not fulfilled, the Contractor opts to terminate the Contract under
 Article 6.4 (c) herein, or if the said phase is the last exploration phase, the
 Contractor shall, within thirty (30) days from the date of the decision of its
 election to terminate the Contract
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                                        14
                          Zitong Block Petroleum Contract
 <PAGE>
 or within thirty (30) days from the date of the expiration of the exploration
 period, pay CNPC only any unfulfilled balance of the minimum exploration work
 commitment (or of the new one) in US dollars after it has been converted into a
 cash equivalent using the method provided in Annex II-Accounting Procedure
 hereto. However, if the minimum exploration work commitment for the exploration
 period is fulfilled while its expected corresponding minimum exploration
 expenditures are not fulfilled, the unfulfilled part shall be deemed as a saving
 and shall not be paid to CNPC.
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                                        15
                          Zitong Block Petroleum Contract
 <PAGE>
               ARTICLE 7   MANAGEMENT ORGANIZATION AND ITS FUNCTIONS
       7.1 For the purpose of the proper performance of the Petroleum Operations,
 the Parties shall establish a Joint Management Committee (JMC) within forty-five
 (45) days from the date of Commencement of the Implementation of the Contract.
       7.1.1 CNPC and the Contractor shall each appoint an equal number of
 representatives (two to five) to form JMC, and each Party to the Contract shall
 designate one of its representatives as its chief representative. Each company
 comprising the Contractor may appoint one (1) representative. The representative
 of the Operator of the companies comprising the Contractor shall be the chief
 representative of the Contractor. Either Party may replace any of its
 representatives, or designate another representative as its chief
 representative, by a written notice to the other Party, pursuant to Article 8.2
 hereof. All the aforesaid representatives shall have the right to present their
 views on the proposals at the meetings held by JMC. When a decision is to be
 made on any proposal, the chief representative from each Party to the Contract
 shall be the spokesman on behalf of the Party to the Contract.
       The chairman of JMC shall be the chief representative designated by CNPC,
 and the vice chairman shall be the chief representative designated by the
 Contractor. The chairman of JMC shall preside over meetings of JMC. In his
 absence, one representative present at the meeting from CNPC shall be designated
 to act as the chairman of the meeting. In the absence of the vice-chairman of
 JMC, one representative present at the meeting from the Contractor shall be
 designated to act as the vice chairman of the meeting. The Parties may,
 according to need, designate a reasonable number of advisers who may attend, but
 shall not be entitled to vote at, JMC meetings.
       7.1.2 A regular meeting of JMC shall be held at least twice a Contract
 Year, and other meetings, if necessary, may be held at any time at the request
 of any Party to the Contract, upon giving reasonable notice to the other Party
 of the date, time and location of the meeting and the items to be discussed.
       7.2 The Parties shall empower JMC to:
       7.2.1 review and adopt the Work Programs and budgets proposed by the
 Operator and subsequent amendments thereto;
       7.2.2 determine the commerciality of each trap on which a Petroleum
 discovery has been made in accordance with the Operator's appraisal report and
 report its decision to CNPC for confirmation;
       7.2.3 review and adopt the Overall Development Program and budget for each
 Oil Field and/or Gas Field and the amendments to the budget;
       7.2.4 approve or confirm the following items of procurement and
 expenditures:
       (a) approve procurement of any item within the budget with a unit price
 exceeding Five Hundred Thousand U.S. dollars (U.S.$500,000) and any single
 purchase order of total monetary value exceeding Two Million US dollars
 (U.S.$2,000,000);
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                                        16
                          Zitong Block Petroleum Contract
 <PAGE>
       (b) approve a lease of equipment, or an engineering subcontract or a
 service contract within the budget of a monetary value exceeding One Million
 U.S. dollars (U.S.$1,000,000); and
       (c) confirm excess expenditures pursuant to Article 10.2.1 hereof and the
 expenditures pursuant to Article 10.2.2 hereof;
       7.2.5 propose and announce the Date of Commencement of Commercial
 Production of each Oil Field and/or Gas Field within the Contract Area;
       7.2.6 determine the type and scope of information and data provided to any
 Third Party and Affiliate in relation to the Petroleum Operations in accordance
 with Article 22.5 hereof;
       7.2.7 demarcate boundaries of the Development Area and the Production Area
 of each Oil Field and/or Gas Field;
       7.2.8 review and approve plans for transfer of the Production Operations
 in accordance with Article 8.8 hereof;
       7.2.9 review and approve the insurance program proposed by the Operator
 and emergency procedures on safety and environmental protection;
       7.2.10 review and approve personnel training programs;
       7.2.11 review and approve minutes and/or resolutions of JMC meetings, and
 discuss, review, decide and approve other matters that have been proposed by
 either Party to the Contract or submitted by the expert groups pursuant to
 Article 7.4.2 hereof or by the Operator; and
       7.2.12 review and examine matters required to be submitted to relevant
 authorities of the Chinese Government and/or CNPC for approval.
       7.3 Decisions of JMC shall be made unanimously through consultation. All
 decisions made unanimously shall be deemed as formal decisions and shall be
 equally binding upon the Parties. When matters upon which agreement cannot be
 reached arise, the Parties may convene another meeting in an attempt to find a
 new solution thereto based on the principle of mutual benefit.
       7.3.1 During the exploration period, the Parties shall endeavor to reach
 agreement through consultation on exploration programs and annual exploration
 Work Programs. If the Parties fail to reach agreement through consultation, the
 Contractor's proposal shall prevail, provided that such proposal is not in
 conflict with the relevant provisions in Articles 4, 5 and 6 hereof.
       7.3.2 If it is considered by the chairman and/or the vice chairman or
 their nominees that a matter requires urgent handling or may be decided without
 convening a meeting, JMC may make decisions by voting through facsimiles, email
 or the circulation of documents, and the validity of the decisions are equal to
 the decisions made by meeting.
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                                        17
                          Zitong Block Petroleum Contract
 <PAGE>
       7.4 JMC shall establish the following subordinate bodies:
       7.4.1 Secretariat
       The secretariat shall be a permanent organization consisting of two (2)
 secretaries. One secretary shall be appointed by each of the Parties. The
 secretaries shall not be members of JMC, but may attend meetings of JMC as
 observers. The duties of the secretariat are as follows:
       (a) to keep minutes of meetings;
       (b) to prepare summaries of the resolutions for JMC meetings;
       (c) to draft and transmit notices of meetings; and to receive and transmit
 proposals, reports or plans, etc. submitted by the Operator and/or proposed by
 any Party to the Contract that require discussion, review or approval by JMC.
       7.4.2 Expert Groups
       Advisory expert groups shall be established if necessary in accordance
 with the requirements of the Petroleum Operations in various periods. Each
 expert group shall consist of an equal number of Chinese Personnel and the
 Contractor's employees, and, with the agreement of JMC, any other personnel. JMC
 shall discuss and decide upon their establishment or dissolution, size, tasks,
 location of their work and the appointment of their leaders in accordance with
 the requirements of their work. The expert groups shall have the following
 functions:
       (a) to discuss and study matters assigned to them by JMC and submitted by
 the Operator to JMC for its review and approval and any other matter assigned to
 them by JMC and to make constructive suggestions to JMC;
       (b) to have access to and observe and investigate the Petroleum Operations
 conducted by the Operator at its office and operating sites as work requires and
 to submit relevant reports to JMC; and
       (c)  to attend meetings of JMC as observers at the request of JMC.
       7.5 When one of the companies comprising the Contractor acts as the
 Operator, CNPC shall have the right to assign professional representatives to
 the Operator's administrative and technical departments related to the Petroleum
 Operations.
       7.5.1 These professional representatives will work together with the
 Operator's staff. The Operator's staff shall regularly discuss their work with
 the professional representatives of CNPC.
       The professional representatives shall have access to the centers of
 research, design, and data processing related only to the execution of the
 Contract and to the operating sites, and will participate in all the activities
 with respect to the Petroleum Operations. Whether to
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                                        18
                          Zitong Block Petroleum Contract
 <PAGE>
 provide such access to the aforesaid centers outside the People's Republic of
 China shall be decided by the Operator and JMC through discussion. If the
 decision is made, such access shall be arranged by the Operator and the Operator
 shall use all reasonable endeavors to assist the professional representatives to
 have access to Third Parties' sites. The work of professional representatives of
 CNPC shall be arranged by the manager(s) of the departments of the Operator in
 which professional representatives work.
       Professional representatives of CNPC, except for the professional
 representative(s) involved in procurement who shall undertake their functions in
 accordance with Article 7.6 herein, shall not interfere in the decision making
 on relevant matters by departmental manager(s) of the Operator. However, such
 professional representatives shall have the right to participate with the
 Operator's staff in making recommendations to departmental manager(s) of the
 Operator and to report on activities undertaken directly to CNPC's
 representatives in JMC.
       When CNPC acts as the Operator, the Contractor may also assign
 professional representatives including professional representative(s) in charge
 of procurement.
       7.5.2 On the principle of mutual cooperation and coordination, the
 Operator shall provide the professional representatives with necessary
 facilities and assistance to perform work and to observe the operating sites,
 etc.
       7.5.3 The number of professional representatives shall be decided by JMC
 through consultations.
       7.6 When one of the companies comprising the Contractor acts as the
 Operator, in respect of the items listed in the procurement plan, the procedures
 and provisions hereunder shall be followed:
       7.6.1 The procurement department of the Operator shall, in writing,
 monthly inform the professional representatives appointed by CNPC in charge of
 procurement of all the planned and finished items of procurement and
 specifications relating thereto.
       7.6.2 The Operator and professional representatives of CNPC, subject to
 Articles 15.1 and 15.3 hereof will prepare the procurement plan in accordance
 with the Work Program and budget. The professional representative of CNPC in
 charge of procurement shall work out an inventory listing the equipment and
 materials which can be made and provided in China and a list of manufacturers,
 engineering and construction companies and enterprises in China which can
 provide services and undertake subcontracting work.
       7.6.3 Unless otherwise agreed upon by the Parties, the Operator shall, in
 general, make procurement by means of calling for bids and shall notify at the
 same time manufacturers and enterprises concerned both inside and outside China,
 and the work of calling for bids shall be done within the territory of China.
       7.6.4 When any procurement is to be made by means of calling for bids, the
 manufacturers and enterprises in China applying for bidding, which are included
 in a list delivered in advance to the Operator by the professional
 representative of CNPC in charge of procurement shall be invited. The
 professional representative of CNPC in charge of
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                                        19
                          Zitong Block Petroleum Contract
 <PAGE>
 procurement shall have right to take part in the work of calling for bids,
 including examination of the list of bidders to be invited, preparing and
 issuing bidding documents, opening bids, evaluation of bids, and shall have the
 right to consult with the Operator on the determination of award of contracts
 and participate in negotiations for subcontracts and services contracts.
       7.6.5 With respect to the items of procurement by means other than calling
 for bids, the Operator and the professional representative of CNPC in charge of
 procurement will, in accordance with the provisions specified in Article 7.6.2
 herein, define those items which are to be procured in the People's Republic of
 China and those items which are to be procured abroad.
       7.7 All salaries, costs and expenses with respect to the staff members of
 the Parties in the subordinate bodies of JMC, established in accordance with
 Article 7.4 herein, and those with respect to the professional representatives
 referred to in Article 7.5 herein shall be paid by the Operator and charged to
 the exploration costs, development costs and operating costs in accordance with
 Annex II-Accounting Procedure hereto. All salaries, costs and expenses with
 respect to the staff members of CNPC in the subordinate bodies of JMC, the CNPC
 professional representatives of JMC and the CNPC representatives of JMC shall be
 paid by the Operator in accordance with Annex III - Personnel Costs hereto.
       The Operator shall provide office facilities and administrative expenses
 for CNPC Personnel referred to in Article 1.2 of Annex III - Personnel Costs
 hereto.
       7.8 The specific responsibilities and working procedures within JMC shall
 be discussed and determined by JMC in accordance with the relevant provisions
 herein.
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                                        20
                          Zitong Block Petroleum Contract
 <PAGE>
                               ARTICLE 8   OPERATOR
       8.1 The Parties agree that Pan-China Resources Ltd. shall act as the
 Operator for the Petroleum Operations within the Contract Area, unless otherwise
 stipulated in Article 8.8 herein and Article 31.5 hereof.
       Once CNPC takes over the operations as the Operator of the Contract Area
 according to the Contract, the Parties agree that Zitong Gas Field Operation
 Company, which is a non-profit oriented company, founded by CNPC will be
 responsible for such operations.
       8.2 For the implementation of the Contract, each company comprising the
 Contractor shall register with the State Administration for Industry and
 Commerce of the People's Republic of China in accordance with the relevant
 provisions of the said State Administration for Industry and Commerce and shall
 obtain the necessary approval from CNPC.
       The person in charge of the Operator shall have the full right to
 represent the Contractor in respect of the performance of the Petroleum
 Operations. The names, positions and resumes of the staff and organization chart
 of the Operator shall be submitted in advance to CNPC and the appointment of the
 Operator's senior staff must be subject to the consent of CNPC.
       The parent corporation of each company comprising the Contractor which is
 not itself a parent corporation shall, at the request of CNPC, provide CNPC with
 a written performance guarantee acceptable to CNPC.
       8.3 The Operator shall have the following obligations:
       8.3.1 To apply the appropriate and advanced technology and business
 managerial experience of the Contractor, including each company comprising the
 Contractor or its and their Affiliates to perform the Petroleum Operations
 reasonably, economically and efficiently in accordance with sound international
 practice.
       8.3.2 To prepare Work Programs and budgets related to the Petroleum
 Operations and to carry out the approved Work Programs and budgets.
       8.3.3 To be responsible for procurement of installations, equipment, and
 supplies and entering into subcontracts and service contracts related to the
 Petroleum Operations, in accordance with the approved Work Programs and budgets
 and the applicable provisions of Articles 7.2.4, 7.6 and 10.2 hereof.
       8.3.4 To prepare in advance, in accordance with Article 16 hereof, a
 personnel training program and budget before the commencement of the Exploration
 Operations, Development Operations and Production Operations respectively, and,
 in accordance with the said program and budget, to be responsible for preparing
 an annual personnel training program and budget and carrying out the annual
 program and budget after approval by JMC.
       8.3.5 To establish an insurance program, and to enter into and implement
 the insurance contracts in accordance with Article 21 hereof.
       8.3.6 To issue cash-call notices to all the parties to the Contract to
 raise the required
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                                        21
                          Zitong Block Petroleum Contract
 <PAGE>
 funds based on the approved budgets and in accordance with Article 12 hereof and
 Annex II - Accounting Procedure hereto.
       8.3.7 To maintain complete and accurate accounting records of all the
 costs and expenditures of the Petroleum Operations in accordance with the
 provisions of Annex II - Accounting Procedure hereto and to keep the accounting
 books secure and in good order.
       8.3.8 To make necessary preparation for regular meetings of JMC, and to
 submit in advance to JMC necessary information related to the matters to be
 reviewed and approved by JMC.
       8.3.9 To inform directly or indirectly all the Subcontractors which render
 services for the Petroleum Operations in China and all the Expatriate Employees
 of the Operator and of Subcontractors who are engaged in the Petroleum
 Operations in China that they shall be subject to the laws, decrees, and other
 rules and regulations of the People's Republic of China.
       8.3.10 To report its work to JMC as provided in Article 7.2 hereof.
       8.4 In the course of the performance of the Petroleum Operations, any loss
 arising out of the gross negligence or willful misconduct of the Operator or its
 employees shall be solely borne by the Operator, and the said loss shall not be
 charged into the Joint Account. The loses arising out of any other reasons
 except for the gross negligence or willful misconduct of the Operator or the
 employees of the Operator shall be dealt with as provided in Article 5.2.15 of
 Annex II hereof. The Operator shall include in accordance with international
 Petroleum industry practice provisions similar to this Article 8.4 herein in
 related subcontracts and service contracts.
       8.5 In the course of the performance of the Petroleum Operations, the
 Operator shall handle the information, samples or reports in accordance with the
 following provisions:
       8.5.1 The Operator shall provide CNPC with various information, samples
 and data obtained and acquired in the implementation of Contract in accordance
 with Articles 18 and 24 of the Petroleum Regulations and Annex V-Data Control
 hereto. The ownership of all the information, samples and data shall vest in
 CNPC; and the Operator shall have the right to use and handle such information,
 samples and data in accordance with Annex V - Data Control hereto. The
 information and data shall be reported to CNPC at the same time that the
 Operator reports them to its parent corporation. Upon receipt by the Operator of
 any report from its parent corporation concerning such information and data, a
 copy of such report shall be furnished to CNPC as soon as practicable.
       8.5.2 The Operator shall furnish CNPC in a timely manner with reports on
 safety, environmental protection and accidents related to the Petroleum
 Operations and with financial reports prepared in accordance with the provisions
 of Annex II-Accounting Procedure hereto.
       8.5.3 The Operator shall provide the non-operator(s) of the Contractor
 with copies of the relevant data and reports reasonably required by
 non-operator(s) and referred to in Articles 8.5.1 and 8.5.2 herein.
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                                        22
                          Zitong Block Petroleum Contract
 <PAGE>
       8.5.4 The Operator shall, at the request of any Party to the Contract,
 furnish that Party to the Contract with the following:
       8.5.4.1 procurement plans for purchasing equipment and materials,
 inquiries, offers, orders and service contracts, etc.;
       8.5.4.2 technical manuals, technical specifications, design criteria,
 design documents (including design drawings), construction records and
 information, consumption statistics, equipment inventory, spare parts inventory,
 etc.;
       8.5.4.3 technical investigation and cost analysis reports; and
       8.5.4.4 other information relating to the Petroleum Operations already
 acquired by the Operator in the performance of the Contract.
       8.6 In the course of performing the Petroleum Operations, the Operator
 shall abide by the laws, decrees, standards and other rules and regulations with
 respect to environmental protection and safety of the People's Republic of China
 and shall make reasonable measures in accordance with the international
 Petroleum industry practice to:
       8.6.1 minimize the damage and destruction caused by the Petroleum
 Operations to environments, community and ecological environment;
       8.6.2 control blowouts promptly and prevent or avoid waste or loss of
 Petroleum discovered in or produced from the Contract Area;
       8.6.3 prevent Petroleum from flowing into low-pressure formations or
 damaging adjacent Petroleum-bearing formations;
       8.6.4 prevent water from flowing into Petroleum-bearing formations through
 dry holes or other wells, except for the purpose of secondary recovery;
       8.6.5 prevent land, forests, vegetation, crops, buildings and other
 installations from being damaged and destroyed; and
       8.6.6 minimize the danger to personnel safety and health.
       8.7 Project Management Team
       In any Oil Field and/or Gas Field within the Contract Area where CNPC has
 a participating interest in the development of the said Field, a project
 management team (hereafter referred to as "PMT") shall be established for the
 development of such Oil Field and/or Gas Field in the organization of the
 Operator within thirty (30) days from the date of approval of the Overall
 Development Program for the said Field by the Department or Unit. PMT shall
 exist for the period of the development of the said Oil Field and/or Gas Field.
       PMT shall comprise those personnel designated by the Parties and the
 number of CNPC's personnel shall be no less than one third (1/3) of the total
 number of personnel within PMT. The Contractor shall designate a person acting
 as the manager of PMT, and CNPC shall
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                                        23
                          Zitong Block Petroleum Contract
 <PAGE>
 designate a person acting as the deputy manager of PMT.
       PMT shall be located at the Operator's office within the territory of the
 People's Republic of China. The working location(s) of the members of PMT shall
 be decided according to the need of the work.
       The specific organization, staffing and working system of PMT and
 responsibilities and competence of various positions including those of CNPC's
 personnel assigned to PMT shall be determined by the Parties through
 consultation prior to the approval of the Overall Development Program for the
 said Oil Field and/or Gas Field.
       8.8 Transfer and take over of the Production Operations
       Before the full recovery of the development costs actually incurred and
 Deemed Interest thereon in accordance with the Overall Development Program of
 any Oil Field and/or Gas Field within the Contract Area, CNPC may, after
 agreement reached through consultations of JMC, take over the Production
 Operations of that Oil Field and/or Gas Field, if conditions permit. After the
 full recovery of the development costs actually incurred and Deemed Interest
 thereon in accordance with the Overall Development Program of any Oil Field
 and/or Gas Field within the Contract Area, CNPC shall, at any time, have the
 right by giving a written notice to the Contractor to take over the Production
 Operations. Both aforesaid cases shall be affected in accordance with the
 procedures described hereunder.
       8.8.1 The Contractor shall submit a transfer plan of the Production
 Operations to CNPC and JMC respectively within sixty (60) days following the
 date of receiving the written notice from CNPC. Such transfer plan shall
 include, but not be limited to, necessary costs to be incurred for such
 transfer, a list of various posts to be taken over by CNPC, a schedule of
 transfer by stages, inventories of the relevant facilities and equipment and an
 inventory of all documents, manuals, data and information necessary for the
 Production Operations. Where the transfer of some of the Production Operations
 involves any Third Party, the Contractor shall consult with CNPC in advance and
 propose a solution thereto in the transfer plan, however, this situation shall
 not be taken by the Contractor as an excuse to delay and hinder the transfer of
 the Production Operations.
       JMC shall, within thirty (30) days after receiving the said plan, review
 and make a decision whether to approve it or not.
       8.8.2 CNPC shall, within sixty (60) days from the date of receiving the
 transfer plan of the Production Operations approved by JMC, submit to the
 Contractor and JMC respectively the lists and resumes of CNPC's personnel who
 will take over the posts. The personnel named in the lists shall be persons who
 have been trained by the Contractor in accordance with the provisions set forth
 in Article 16 hereof or personnel who are considered by CNPC to be competent.
 Within one hundred and eighty (180) days from the date of receiving CNPC's lists
 of the personnel who will take over the posts, the Contractor shall arrange for
 such personnel to undergo step by step practical training for the posts to be
 taken over by them and shall assist CNPC to administer a qualification test for
 such personnel.
       8.8.3 Within three hundred and thirty (330) days from the date of
 receiving the written notice from CNPC, the Contractor shall submit to JMC a
 report on the completion of
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                                        24
                          Zitong Block Petroleum Contract
 <PAGE>
 preparations for the transfer of the Production Operations. Such report shall
 include the results of the qualification test for CNPC's personnel who will take
 over the Production Operations and shall be confirmed by JMC within thirty (30)
 days after the receipt of the said report. The transfer of the Production
 Operations shall begin on the date when JMC makes such confirmation.
       8.8.3.1 When the completion of preparations for the transfer of the
 Production Operations is confirmed by JMC, the Contractor shall, in accordance
 with the transfer schedule by stages, transfer to CNPC's take-over personnel
 control of all facilities and equipment relating to the Production Operations in
 the Oil Field and/or Gas Field, and all documents, manuals, data and information
 owned and/or held by the Contractor regarding the use and operation of such
 facilities and equipment, so that CNPC's personnel are able to manage and handle
 such facilities and equipment.
       8.8.3.2 If JMC believes that preparations for the transfer of the
 Production Operations have not been completed and sets another deadline for the
 completion of preparations for the transfer of the Production Operations, the
 preparations for the transfer shall be completed prior to the deadline and the
 transfer shall begin thereafter.
       8.8.4 The transfer in respect of the accounting and financial aspects
 shall be handled in accordance with Annex II - Accounting Procedure hereto.
       8.8.5 During the preparation for the transfer of the Production Operations
 and in the course of the actual transfer, the Contractor shall perform the
 functions and obligations provided for in Articles 8.3, 8.4, 8.5 and 8.6 herein
 in respect of an Oil Field and/or Gas Field undergoing the transfer of the
 Production Operations, until the date when CNPC has completely assumed control
 of and taken over the Production Operations of the Oil Field and/or Gas Field.
 Thereafter, the functions, obligations and rights of the Operator provided for
 in this Contract shall be by analogy applicable to CNPC.
       8.8.6 After CNPC has taken over the Production Operations and become the
 Operator of an Oil Field and/or Gas Field, the Contractor shall still have the
 obligation, pursuant to Article 2 hereof, to provide CNPC with the relevant
 technical and personnel training assistance, and the costs incurred thereby
 shall be charged to the operating costs in accordance with the provisions of
 Annex II- Accounting Procedure hereto.
       8.8.7 When CNPC takes over the Production Operations in any Oil Field
 and/or Gas Field, the CNPC personnel employed by the Contractor for the
 Production Operations of the said Oil Field and/or Gas Field shall be
 transferred to CNPC's employment. If CNPC needs to retain the services of any of
 the Expatriate Employees employed by the Contractor or the Contractor still
 needs to keep some of CNPC personnel in its employment, an agreement shall be
 reached through consultation between the Parties prior to the transfer.
       8.8.8 The expenses incurred in the transfer and take over of the
 Production Operations shall be charged to the operating costs.
       8.9 With a view to efficiently conducting Work Programs approved by JMC,
 the Operator shall have the right to lease and/or use land with compensation
 therefor and to obtain rights of way subject to Chinese laws and regulations.
 Any costs incurred by the
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                                        25
                          Zitong Block Petroleum Contract
 <PAGE>
 Operator for this purpose shall be respectively charged to exploration costs,
 development costs and operating costs having regard to the date on which the
 same are actually incurred.
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                                        26
                          Zitong Block Petroleum Contract
 <PAGE>
                     ARTICLE 9   ASSISTANCE PROVIDED BY CNPC
       9.1 To enable the Contractor to carry out expeditiously and efficiently
 the Petroleum Operations, CNPC shall have the obligation to assist the
 Contractor at its request to:
       9.1.1 obtain the approvals or permits needed to open accounts with banks
 in China;
       9.1.2 go through the formalities of exchanging foreign currencies;
       9.1.3 obtain the information of relevant taxes and other local charges to
 be imposed on the Contractor in executing this Contract;
       9.1.4 obtain office space, apartment or other personnel accommodation as
 required, office supplies, transportation and communication facilities;
       9.1.5 clear imports of goods through customs and go through the
 formalities of Customs;
       9.1.6 obtain entry and exit visas for the Expatriate Employees who will
 come to China for the performance of Contract and for their dependents who will
 visit them or reside in China for a long period and provide assistance for their
 transportation and moving as well as medical services and travel in China;
       9.1.7 obtain necessary permission to send abroad, if necessary, documents,
 data and samples for analysis or processing during the performance of the
 Petroleum Operations;
       9.1.8 contact and coordinate with governmental departments engaged in
 fishing, aquatic products, stock raising, agriculture, meteorology, ocean
 shipping, civil aviation, railway, transportation, electric power,
 communication, public security and services for supply bases, etc., for relevant
 matters and otherwise assist the Contractor in obtaining on a timely basis
 approvals necessary for the conduct of the Petroleum Operations under the
 Contract;
       9.1.9 lease or use warehouses, yards, terminal facilities, barges,
 aircrafts, pipelines and land, etc. in the implementation of the Petroleum
 Operations; and
       9.1.10 facilitate Contractor's and the Subcontractors' registration in
 China.
       9.2 In accordance with Article 15 hereof, CNPC shall, at the request of
 the Contractor, assist the Contractor with the recruitment of Chinese Personnel.
       9.3 CNPC shall, at the request of the Contractor, sell to the Contractor
 data and samples concerning the Contract Area other than those produced as a
 result of Petroleum Operations hereunder in accordance with any relevant rules
 and regulations and CNPC shall also assist the Contractor to arrange the
 purchase of any environmental, hydrological, meteorological data, etc. from the
 relevant departments in China.
       9.4 CNPC shall, at the request of the Contractor, also assist the
 Contractor with reasonable matters other than those under Articles 9.1, 9.2 and
 9.3 herein if possible.
       9.5 All expenses incurred in the assistance provided by CNPC in accordance
 with this
 --------------------------------------------------------------------------------
                                        27
                          Zitong Block Petroleum Contract
 <PAGE>
 Article 9 shall be paid by the Contractor and shall be handled in accordance
 with the provisions of Annex II - Accounting Procedure hereto.
 --------------------------------------------------------------------------------
                                        28
                          Zitong Block Petroleum Contract
 <PAGE>
                      ARTICLE 10   WORK PROGRAM AND BUDGET
       10.1 After the Date of Commencement of the Implementation of the Contract,
 the Operator shall propose and submit to JMC the annual Work Program and budget
 for the remainder of the same Calendar Year at the first regular meeting of JMC.
 Before the fifteenth (15th) of September of each Calendar Year, the Operator
 shall complete and submit to JMC for its review an annual Work Program and
 budget for the next Calendar Year except otherwise agreed by CNPC. JMC shall
 either adopt the annual Work Program and budget as submitted or make such
 modifications agreed by the Parties. The adopted annual Work Program and budget
 shall be submitted to CNPC for review and approval within one (1) month as of
 the date on which they are submitted to JMC. Within fifteen (15) days following
 the receipt of the annual Work Program and budget, CNPC shall notify JMC in
 writing of its approval or disapproval or any modifications thereto with its
 detailed reasons. If CNPC requests any modifications to the aforesaid annual
 Work Program and budget, the Parties shall promptly hold meetings to make
 modifications and any modifications agreed upon by the Parties shall be effected
 immediately. In case CNPC fails to notify JMC in writing of its approval or
 disapproval or any modification within fifteen (15) days, the annual Work
 Program and budget adopted by JMC shall be deemed to have been approved by CNPC.
 The Operator shall make its best efforts to perform the Petroleum Operations in
 accordance with the approved or modified annual Work Program and budget.
       As required for reviewing Work Program and budget by JMC, the Operator
 shall submit to JMC the supporting data as detailed as possible.
       10.2 The Operator may, in accordance with the following provisions, incur
 excess expenditures or expenditures outside the budget in carrying out the Work
 Program and budget, provided that the objectives of the approved Work Program
 and budget are not changed.
       10.2.1 In carrying out an approved budget for a single item, such as the
 drilling of a well, the Operator may, if necessary, incur excess expenditures of
 no more than ten percent (10%) of the budgeted amount. The Operator shall report
 quarterly the aggregate amount of all such excess expenditures to JMC for
 confirmation.
       10.2.2 For the efficient performance of the Petroleum Operations, the
 Operator may, without approval, undertake certain individual projects which are
 not included in the Work Program and budget, for a maximum expenditure of One
 Hundred Thousand US Dollars (U.S.$100,000), but the Operator shall, within ten
 (10) days after such expenditures are incurred, report to JMC for confirmation.
 In case of emergency, the Operator may incur emergency expenditures for the
 amount actually needed but shall report such expenditures to JMC as soon as they
 are made. However, the said emergency expenditures shall not be subject to
 Articles 10.2.3 and 10.2.4 herein.
       10.2.3 In the event that the aggregate of excess expenditures under
 Article 10.2.1 herein and expenditures under Article 10.2.2 herein incurred in a
 Calendar Year cause the total expenditures of that Calendar Year to exceed the
 approved annual budget, such excess shall not exceed five percent (5%) of the
 approved annual budget for that Calendar Year. If the aforesaid excess is
 expected to be in excess of five percent (5%) of the annual budget, the Operator
 shall present its reasons therefor to JMC and obtain its approval prior to
 incurring such expenditures.
 --------------------------------------------------------------------------------
                                        29
                          Zitong Block Petroleum Contract
 <PAGE>
       10.2.4 When JMC confirms the excess expenditures mentioned in Articles
 10.2.1 herein and the expenditures mentioned in 10.2.2 herein:
       (a) if expenditures or excess expenditures are determined to be
 reasonable, the Operator may incur such expenditures or excess expenditures
 again during the same Calendar Year, subject to Article 10.2 herein; or
       (b) if expenditures or excess expenditures are determined to be
 unreasonable, the Operator shall not incur such unreasonable expenditures or
 excess expenditures again during the same Calendar Year and such unreasonable
 expenditures or excess expenditures shall be dealt with in accordance with
 Article 5.4 of Annex II-Accounting Procedure hereto.
 --------------------------------------------------------------------------------
                                        30
                          Zitong Block Petroleum Contract
 <PAGE>
                   ARTICLE 11   DETERMINATION OF COMMERCIALITY
       11.1 If any Petroleum discovery is made within the Contract Area, the
 Operator shall promptly report such discovery to JMC. If JMC or the Contractor
 makes a decision that a Petroleum discovery is worthy of appraisal, the Operator
 shall submit to JMC an appraisal Work Program including appraisal work and
 timetable for such Petroleum discovery as soon as possible. Such an appraisal
 Work Program shall be worked out no later than ninety (90) days from the date of
 the aforesaid decision made by JMC or the Contractor. The appraisal Work Program
 shall, in so far as is practicable, be based on conducting the appraisal work
 continuously, with a view to commencing operations within one hundred and eighty
 (180) days from the date of the aforesaid decision made by JMC or the
 Contractor.
       11.2 After the approval by JMC of the appraisal Work Program referred to
 in Article 11.1 herein, the Operator shall carry out the operations as soon as
 possible without unreasonable delay in accordance with the timetable set forth
 in the approved appraisal Work Program.
       11.3 Within one hundred and eighty (180) days after the completion of the
 last Appraisal Well, the Operator shall submit to JMC a detailed report on the
 appraisal of the commerciality of the discovered Petroleum-bearing trap. Under
 special circumstances, the above-mentioned periods may be reasonably extended
 upon agreement of the Parties.
       The appraisal report shall include the evaluation on geology, development,
 engineering and economics and the Overall Development Program to be approved,
 and the Overall Development Program shall include, but not be limited to, the
 Maximum Efficient Rate (MER) and the estimated duration of the production period
 determined in accordance with the international Petroleum industry practice, as
 well as the Delivery Point, a plan for utilization of Associated Natural Gas,
 and the basket of internationally traded Crude Oils referred to in Article
 14.4.4.5 hereof.
       Prior to the submission of the Overall Development Program, the Operator
 shall:
       (a) submit to CNPC the report of oil and/or gas in place of Oil Field
 and/or Gas Field; and
       (b) entrust a qualified organization to prepare the Environmental Impact
 Statements.
       The reports and statements mentioned in (a) and (b) above shall be
 submitted to the competent authorities of the Chinese Government through CNPC
 for review and approval.
       In the case of Petroleum discovery if the Contractor doesn't carry out the
 appraisal operations on the said discovery by the end of the exploration period,
 or if the Contractor doesn't submit the Overall Development Program within three
 (3) months after the expiration of the exploration period, the Contractor shall
 be deemed that it has abandoned the right of the said Petroleum discovery. The
 area of the said Petroleum discovery shall be relinquished from the Contract
 Area.
       If the Parties can not reach agreement on the Overall Development Program
 submitted by the Contractor within three (3) months, the said Overall
 Development Program shall be submitted to an expert for review, who is appointed
 according to the provisions of the Article 27 hereof.
       11.4 Within thirty (30) days following the submission of the appraisal
 report on any
 --------------------------------------------------------------------------------
                                        31
                          Zitong Block Petroleum Contract
 <PAGE>
 Crude Oil bearing trap, JMC shall convene a meeting to review such report. When
 JMC decides unanimously after its review that the said Crude Oil bearing trap is
 an Oil Field with commercial value and is to be developed, or the Contractor
 considers, in accordance with Article 11.6.2 herein, that a Crude Oil bearing
 trap is an Oil Field with commercial value and is to be developed, JMC shall
 submit to CNPC for confirmation the appraisal report and the Overall Development
 Program of the said Oil Field to be developed and CNPC shall submit the Overall
 Development Program of the Oil Field to the Department or Unit as soon as
 possible for its review and approval. The Operator shall perform the Development
 Operations in accordance with the Overall Development Program of each Oil Field
 approved by the Department or Unit. If the Operator, without adequate
 justification, fails to commence such Development Operations within ninety (90)
 days after the date of approval the Overall Development Program of an Oil Field
 by the Department or Unit, or if an unreasonable delay caused unilaterally by
 the Contractor acting as the Operator, results in a suspension or a halt of
 ninety (90) continuous days in the Development Operations of an Oil Field, CNPC
 has the right to request the Contractor to resume the Development Operations
 within a period of time set forth by CNPC; and if the Operator fails to resume
 the Development Operations within such period, CNPC has the right to request the
 Contractor to give up all its rights in the said Oil Field. If CNPC so requests
 the Contractor, pursuant to the provisions of this Article 11.4 herein, to give
 up all of its rights in the said Oil Field, the Contractor shall waive all of
 its rights in the said Oil Field from the date of receipt by the Contractor of
 the written notice in that regard from CNPC.
       11.5 If, after the appraisal, JMC determines that a Crude Oil bearing trap
 is non-commercial, such Crude Oil bearing trap may, at the Contractor's option,
 be retained within the Contract Area during the term of the exploration period.
 Before the expiration of the exploration period, if, because of certain positive
 factors, JMC considers unanimously that it is necessary to reappraise the
 commerciality of the Crude Oil bearing trap, the Operator shall submit a further
 appraisal report on such Crude Oil bearing trap to JMC for its review and
 adoption. If the JMC's determination of non-commerciality of such Crude Oil
 bearing trap has not changed at the expiration of the exploration period, the
 relevant area of such Crude Oil bearing trap shall be excluded from the Contract
 Area.
       11.6 If, after the appraisal, JMC can not reach an agreement on the
 commerciality of a Crude Oil bearing trap, the Parties shall make their best
 efforts to seek another solution thereto. However, if JMC can not reach an
 agreement on the commerciality of any Crude Oil bearing trap within ninety (90)
 days following the submission of the appraisal report prepared by the Operator
 in accordance with Article 11.3 herein or any further appraisal report prepared
 by the Operator in accordance with Article 11.5 herein, then such trap shall be
 dealt with in accordance with the following procedure:
       11.6.1 If the Contractor informs CNPC in writing that a Crude Oil bearing
 trap has no commercial value, then the Contractor shall be deemed to have waived
 its rights to participate in the development of that Crude Oil bearing trap. The
 relevant area covered by that Crude Oil bearing trap shall, however, be retained
 within the Contract Area until the expiration of the exploration period. In case
 that CNPC decides, within the exploration period, to solely develop such Oil
 Field, then, within the development period, the Contractor shall be allowed to
 participate in the development. If the Contractor decides, within the
 development period of the said Oil Field, to participate in the development of
 such Oil Field by giving a written notice to CNPC, then, the Contractor shall
 pay CNPC an amount of money, in addition to
 --------------------------------------------------------------------------------
                                        32
                          Zitong Block Petroleum Contract
 <PAGE>
 forty-nine percent (49%) of the development costs spent by CNPC on the said Oil
 Field with Deemed Interest thereon up to the date of Contractor's submission of
 the written notice to CNPC. Such amount shall be equal to three times (300%) the
 foregoing payable development costs with Deemed Interest thereon and such amount
 of money shall not be recovered after commercial production of the Oil Field
 commences. Thereafter, the development costs to be incurred in such Oil Field
 shall be provided by the Parties in proportion to their respective participating
 interests. In the event that the Contractor still decides not to participate in
 the development of the said Field at the expiration of the development period of
 such Oil Field, then the said Oil Field shall be excluded from the Contract Area
 upon the Date of Commencement of Commercial Production of the said Oil Field.
       11.6.2 If CNPC considers a Crude Oil bearing trap to have no commercial
 value while the Contractor considers that it is a Crude Oil bearing trap having
 commercial value, the Contractor may solely provide the entire development
 investment and undertake development of the said Oil Field, and the said Oil
 Field shall be deemed as an Oil Field in which CNPC has no participating
 interests. The entire risk related to the development investment spent for the
 said Oil Field shall be borne solely by the Contractor.
       11.7 In the event of an Oil Field and/or Gas Field Straddling a Boundary,
 CNPC shall arrange for the Contractor and the neighboring parties involved to
 work out a unitized Overall Development Program for such Oil Field and/or Gas
 Field and to help negotiate the relevant provisions thereof.
       11.8 If a Petroleum-bearing trap without commercial value within the
 Contract Area can be most economically developed as a commercial Oil Field
 and/or Gas Field by linking it up with facilities located outside the Contract
 Area, then the development of such Oil Field and/or Gas Field shall be dealt
 with in the same manner as provided in Article 11.7 herein.
       11.9 The procedures specified in this Article 11 shall be applied, by
 analogy, to determination of additional development projects in any Oil Field
 and/or Gas Field within the Contract Area during the production period, such
 projects being designed as a supplementary to and/or an adjustment of the
 existing Overall Development Program for such Oil Field and/or Gas Field.
       11.10 If the Parties deem that it is necessary to have appraisal trial
 production for preparation of the Overall Development Program for any Oil Field
 and/or Gas Field within Contract Area, the Contractor will bear all the costs of
 the appraisal trial production including the operating costs. The said costs
 shall be deemed as the exploration costs. The production from the appraisal
 trial production operations will be allocated in kind at Seventy Two percent
 (72%) to the Contractor and Twenty Eight percent (28%) to CNPC, following the
 payment of the Value-added Tax and Royalty through CNPC. The duration of the
 appraisal trail production will be agreed by the Parties. The Parties shall
 reach a written agreement through negotiation on terms and conditions of
 appraisal trial production which shall be attached hereto as a supplementary
 document.
       11.11 The procedures specified in this Article 11 shall be applied, by
 analogy, with Article 18 together, to determination of commerciality of any
 Natural Gas discovery.
 --------------------------------------------------------------------------------
                                        33
                          Zitong Block Petroleum Contract
 <PAGE>
                    ARTICLE 12   FINANCING AND COST RECOVERY
       12.1 Funds required for the Petroleum Operations shall be raised by the
 Operator in accordance with Work Programs and budgets determined pursuant to the
 relevant provisions of the Contract, the provisions described in Annex II -
 Accounting Procedure hereto, and the provisions described herebelow.
       12.1.1 All the exploration costs required for Exploration Operations shall
 be provided solely by the Contractor. However, the exploration costs required
 for the fulfillment of the minimum exploration work commitment shall be deemed
 the equity capital of the Contractor. For the purpose of the Contract, all costs
 incurred during the extension period described in the Article 4.3 hereof shall
 be deemed the exploration costs and shall be provided solely by the Contractor.
       12.1.2 The development costs required for Development Operations in each
 Oil Field within the Contract Area shall be provided by CNPC and the Contractor
 in proportion to their respective participating interests: fifty-one percent
 (51%) by CNPC and forty-nine percent (49%) by the Contractor, unless CNPC
 applies the provisions of the second paragraph of this Article 12.1.2 herein.
       In the event that CNPC, at its option, decides not to participate in the
 development of an Oil Field or decides to participate in the development of such
 Oil Field to an extent of less than fifty-one percent (51%) of the participating
 interest, CNPC shall notify the Contractor in writing of its decision of
 non-participation or a specific lesser percentage of the participating interests
 before the appraisal report is reviewed by JMC pursuant to Article 11.4 and
 Article 18.2.1 hereof. In such case, if CNPC does not participate in the
 development of such Oil Field, the development investment therein shall be borne
 solely by the Contractor, or in case CNPC participates in the development of
 such Oil Field to an extent of less than fifty-one percent (51%) of the
 participating interests, such development investment shall be borne by the
 Parties in proportion to their actual respective participating interests.
       12.1.3 The operating costs incurred for the performance of the Production
 Operations of each Oil Field before the Date of Commencement of Commercial
 Production shall be considered as development costs. The operating costs so
 incurred after the Date of Commencement of Commercial Production shall be paid
 respectively by CNPC and the Contractor in proportion to their participating
 interests in respect of the development costs of the said Oil Field.
       12.1.4 For the purpose of implementation of the Contract, CNPC shall agree
 that the Contractor may, when financing, use the entitlement of its share of
 production under the Contract as a security for loans, provided that Contractor
 shall apply to CNPC in advance and the application therefor shall be examined by
 CNPC, and provided further that the right and interests of CNPC under the
 Contract shall not be impaired thereby.
       12.2 All the costs incurred in the performance of Petroleum Operations
 shall be recovered in accordance with Annex II - Accounting Procedure hereto and
 the provisions described as follows:
       12.2.1 The operating costs for any given Calendar Year actually incurred
 by CNPC and
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                                        34
                          Zitong Block Petroleum Contract
 <PAGE>
 the Contractor in respect of each Oil Field pursuant to Article 12.1.3 herein,
 shall be recovered in kind by the Parties out of the Crude Oil produced from the
 said Oil Field during that Calendar Year in accordance with Annex II -
 Accounting Procedure hereto, after the operating costs have been converted into
 a quantity of Crude Oil on the basis of the Crude Oil price determined in
 accordance with Article 14.4 hereof. Unrecovered operating costs shall be
 carried forward to the succeeding Calendar Year(s).
       12.2.2 The exploration costs incurred by the Contractor shall be recovered
 as follows:
       After the Date of Commencement of Commercial Production of an Oil Field
 within the Contract Area, the exploration costs incurred by the Contractor in
 respect of the Contract Area shall be recovered in kind out of the Crude Oil
 produced from any Oil Field within the Contract Area in accordance with Article
 13.2.2.2 hereof, after the exploration costs have been converted into a quantity
 of Crude Oil based on the Crude Oil price determined in accordance with Article
 14.4 hereof. The exploration costs shall be recovered without any interest.
       If no Oil Field is discovered within the Contract Area, the exploration
 costs incurred by the Contractor shall be deemed as their loss. Under no
 circumstances shall CNPC reimburse the Contractor for such loss.
       12.2.3 The development costs in respect of each Oil Field incurred by CNPC
 and the Contractor and Deemed Interest thereon shall be recovered as follows:
       12.2.3.1 After the Date of Commencement of Commercial Production of any
 Oil Field within the Contract Area, the development costs in respect of such Oil
 Field incurred by CNPC and the Contractor and Deemed Interest thereon calculated
 in accordance with Article 12.2.3.2 herein shall be recovered in kind out of the
 Crude Oil produced from such Oil Field in accordance with Article 13.2.2.2
 hereof, after the development costs have been converted into a quantity of Crude
 Oil based on the Crude Oil price determined in accordance with Article 14.4
 hereof.
       12.2.3.2 Deemed Interest on the development costs incurred by CNPC and the
 Contractor for each Oil Field within the Contract Area shall be calculated at a
 fixed annual compound rate of nine percent (9%) from the first day of the month
 following the month in which such development costs expended by each Party to
 the Contract are actually received in the bank account of the Joint Account
 opened by the Operator. The detailed method of such calculation shall be as
 provided in Annex II - Accounting Procedure hereto.
       12.2.4 The amount of Crude Oil extracted and delivered from an Oil Field
 before the Date of Commencement of Commercial Production shall be allocated in
 accordance with Article 13 hereof after the announcement of the Date of
 Commencement of Commercial Production of the Oil Field by JMC in accordance with
 Article 7.2.5 hereof. The production from the appraisal trial production
 operations will be allocated in accordance with Article 11.10 hereof.
       12.3 The provisions in Article 12 herein shall apply, by analogy, to Gas
 Fields.
 --------------------------------------------------------------------------------
                                        35
                          Zitong Block Petroleum Contract
 <PAGE>
                ARTICLE 13   CRUDE OIL PRODUCTION AND ALLOCATION
       13.1 The Operator shall, in accordance with the production profile,
 adjusted as the case may be, set forth in the Overall Development Program for
 each Oil Field as approved by the Department or Unit, work out a Crude Oil
 production plan for each Oil Field in each Calendar Year and carry out Crude Oil
 production pursuant to such plan.
       13.2 The Annual Gross Production of Crude Oil of each Oil Field within the
 Contract Area in each Calendar Year during the production period shall be
 allocated in accordance with the following sequence and proportions:
       13.2.1 The percentages of the Annual Gross Production of Crude Oil
 specified in paragraphs (a) and (b) hereunder shall be used for payments of the
 Value Added Tax and of Royalty respectively and shall be paid in kind to the
 relevant authorities of the Chinese Government through CNPC.
       (a) Value Added Tax shall be paid in accordance with relevant regulations
 of the People's Republic of China; and
       (b) Royalty shall be paid in accordance with relevant regulations of the
 People's Republic of China.
       13.2.2 Sixty percent (60%) of the Annual Gross Production of Crude Oil
 shall be deemed as the "cost recovery oil" and shall be used for payments or for
 cost recovery in the following sequence:
       13.2.2.1 Payment in kind for the operating costs actually incurred but not
 yet recovered by the Parties pursuant to Article 12.2.1 hereof after the price
 of the said "cost recovery oil" has been determined in accordance with Article
 14 hereof.
       13.2.2.2 The remainder of the "cost recovery oil" shall, after payment for
 operating costs in accordance with Article 13.2.2.1 herein, be deemed as
 "investment recovery oil". Such "investment recovery oil" shall be used for the
 recovery of the exploration costs in respect of the Contract Area which were
 incurred and not yet recovered by the Contractor, and shall be used for the
 recovery of the development costs in respect of the Oil Field itself which were
 incurred and not yet recovered by CNPC and the Contractor in accordance with
 Articles 12.2.2 and 12.2.3 hereof, and Deemed Interest thereon. The method of
 recovery and the recovery sequence are as follows:
       (a) Beginning in the Calendar Year during which the commercial production
 of any Oil Field within the Contract Area commences, the "investment recovery
 oil" referred to in Article 13.2.2.2 herein, based on the price which has been
 determined in accordance with Article 14 hereof, shall be paid in kind first to
 the companies comprising the Contractor for the recovery of the exploration
 costs which were incurred in respect of, and have not yet been recovered from,
 the Contract Area. The unrecovered exploration costs shall be carried forward to
 and recovered from the "investment recovery oil" in succeeding Calendar Years
 until fully recovered.
       (b) Beginning in the Calendar Year during which the exploration costs
 incurred by the
 --------------------------------------------------------------------------------
                                        36
                          Zitong Block Petroleum Contract
 <PAGE>
 Contractor in respect of the Contract Area have been fully recovered, the
 remainder of the "investment recovery oil" of an Oil Field shall be used for the
 simultaneous recovery of the development costs incurred and not yet recovered
 respectively by CNPC and the Contractor and Deemed Interest thereon in respect
 of such Oil Field in proportion to their respective participating interests
 therein after the price of such remainder of the "investment recovery oil" has
 been determined in accordance with Article 14 hereof. The unrecovered
 development costs and Deemed Interest thereon shall be carried forward to and
 recovered from the "investment recovery oil" in succeeding Calendar Years until
 fully recovered.
       (c) During the production period of an Oil Field, costs for an additional
 development project incurred pursuant to Article 11.9 hereof and Deemed Interest
 thereon shall be recovered together with the unrecovered development costs and
 Deemed Interest thereon. If the development costs and Deemed Interest thereon
 have been fully recovered, then costs for the said additional development
 project and Deemed Interest thereon shall be recovered from the "investment
 recovery oil" of such Oil Field referred to in Article 13.2.2.2 herein in
 accordance with the provisions specified in Article 13.2 herein. The unrecovered
 costs for the additional development project and Deemed Interest thereon shall
 be carried forward to and recovered in succeeding Calendar Years until fully
 recovered.
       (d) After the recovery of an Oil Field's development costs and Deemed
 Interest thereon and/or costs for the additional development project and Deemed
 Interest thereon from the said Oil Field by the Parties, the remainder of the
 "investment recovery oil" shall automatically be regarded as part of the
 "remainder oil" referred to in Article 13.2.3 herein. By the date of expiration
 of the production period of an Oil Field pursuant to Article 4.5 hereof, if any
 development costs and Deemed Interest thereon and/or costs for the additional
 development project incurred in respect of such Oil Field and Deemed Interest
 thereon have not yet been fully recovered, then such unrecovered costs and
 Deemed Interest thereon shall be regarded as a loss, and the Parties shall bear
 the loss in proportion to their respective participating interests.
       13.2.3 The remainder of the Annual Gross Production of Crude Oil after the
 allocation referred to in Articles 13.2.1 and 13.2.2 herein shall be deemed as
 "remainder oil". Such "remainder oil" shall be divided into "share oil" of the
 Chinese side and "allocable remainder oil". The "allocable remainder oil" of
 each Oil Field in each Calendar Year shall be equal to the "remainder oil" of
 that Calendar Year multiplied by the factor (X) for each Oil Field within the
 Contract Area in that Calendar Year. The factor (X) of each Oil Field in each
 Calendar Year shall be determined in accordance with the following successive
 incremental tiers on the basis of the Annual Gross Production of Crude Oil from
 such Oil Field during that Calendar Year.
 --------------------------------------------------------------------------------
                                        37
                          Zitong Block Petroleum Contract
 <PAGE>
 <TABLE>
 <CAPTION>
 --------------------------------------------------------------------------------
 Annual Gross Production of Crude Oil     Factors (X) in Percentage Applicable to
        From Each Oil Field                Each Production Tier of Each Oil Field
     (Thousands of Metric Tons)                  Within the Contract Area
 --------------------------------------------------------------------------------
 <S>                                                        <C>
 Equal to or Less than 300                                  98
 --------------------------------------------------------------------------------
 Over 300 to 600                                            94
 --------------------------------------------------------------------------------
 Over 600 to 1,200                                          92
 --------------------------------------------------------------------------------
 Over 1,200 to 1,800                                        85
 --------------------------------------------------------------------------------
 Over 1,800 to 2,400                                        75
 --------------------------------------------------------------------------------
 Over 2,400 to 3,500                                        60
 --------------------------------------------------------------------------------
 Over 3,500 to 5,000                                        50
 --------------------------------------------------------------------------------
 Over 5,000                                                 40
 --------------------------------------------------------------------------------
 </TABLE>
       An example of application in calculating the factor (X):
       Assuming that there are two producing commercial Oil Fields A and B within
 the Contract Area and the Annual Gross Production of Crude Oil from Oil Field A
 in a Calendar Year is one (1) million metric tons, and that from Oil Field B is
 one point five (1.5) million metric tons, the factor (X) of Oil Field A in that
 Calendar Year shall be:
                  300X(1)+300X(2)+400X(3)
       X = ---------------------------------- X 100%
                          1,000
       and the factor (X) of Oil Field B in that Calendar Year shall be:
               300X(1)+300X(2)+600X(3)+300X(4)
       X = ------------------------------------------ X 100%
                          1,500
       13.2.4 The "allocable remainder oil" of each Oil Field in each Calendar
 Year referred to in Article 13.2.3 herein shall be shared by the Parties in
 proportion to their respective participating interests in the development costs,
 fifty-one percent (51%) for CNPC and forty-nine percent (49%) for the
 Contractor. In the event that CNPC does not participate in the development of an
 Oil Field within the Contract Area, the Contractor shall obtain one hundred
 percent (100%) of the "allocable remainder oil" of that Oil Field. In the event
 that CNPC participates to an extent less than fifty-one percent (51%) in the
 development of an Oil Field within the Contract Area, the "allocable remainder
 oil" of such Oil Field in that Calendar Year shall be shared by the Parties in
 proportion to their actual respective participating interests in such Oil Field.
       13.3 Pursuant to the method of allocation specified in this Article, the
 Contractor may obtain an aggregate amount of Crude Oil consisting of the
 following three categories:
       13.3.1 The total amount of Crude Oil as converted from the actual
 operating costs paid by the Contractor in all Oil Fields in proportion to its
 participating interests in the development costs stipulated in Article 12.1.3
 hereof when recovering such costs;
       13.3.2 The total amount of the "investment recovery oil" from all Oil
 Fields due to the Contractor provided for in Article 13.2.2.2 herein; and
       13.3.3 The total amount of the "allocable remainder oil" of all Oil Fields
 due to the Contractor in accordance with Article 13.2.4 herein.
       13.4 In the event that the Contractor wishes to purchase a portion or all
 of the total
 --------------------------------------------------------------------------------
                                        38
                          Zitong Block Petroleum Contract
 <PAGE>
 amount of the Crude Oil obtained by CNPC from the "investment recovery oil" in
 addition to the Crude Oil obtained by the Contractor in accordance with Article
 13.3 herein, the Parties shall negotiate the terms and conditions of purchasing
 such Crude Oil and reach an agreement as a supplementary document hereto.
       13.5 CNPC and each company comprising the Contractor shall, throughout the
 entire Contract term, have the right and obligation, in each Calendar Quarter,
 to lift and take, and separately dispose of their respective full shares of all
 Crude Oil produced and determined pursuant to Articles 13.3 and 13.4 herein.
       In the event that the Crude Oil production of any Oil Fields reduces
 because CNPC or any company comprising the Contractor does not lift and take its
 full share of Crude Oil or lifts nothing, then, such reduction in Crude Oil
 production shall not affect the total amount of Crude Oil due to each of the
 other Parties or the amounts of Crude Oil available to be lifted and disposed of
 by each of the other Parties as provided in Article 13.6 (c) herein.
       13.6 A Crude Oil lifting procedure shall be agreed upon by the Parties no
 later than six (6) months prior to the Date of Commencement of Commercial
 Production of an Oil Field within the Contract Area, and shall include, but not
 be limited to:
       (a) the Operator's notification of Crude Oil production to CNPC and each
 company comprising the Contractor;
       (b) notification by CNPC and each company comprising the Contractor of its
 expected offtake to the Operator;
       (c) the Operator's notification to CNPC and each company comprising the
 Contractor of the final Crude Oil lifting schedule prepared by the Crude Oil
 lifting coordination group in accordance with Article 13.7 herein, which shall
 be binding on CNPC and each company comprising the Contractor;
       (d) limitation and calculation of overlift and underlift of CNPC and each
 company comprising the Contractor; and provisions to ensure timely and ratable
 lifting of Crude Oil;
       (e) determination of allowable operational tolerance on liftings; and
       (f) other terminal procedures as may be required to reflect the particular
 circumstances.
       13.7 For the purpose of implementing the procedures as described in
 Article 13.6 herein, CNPC and each company comprising the Contractor shall
 jointly set up a Crude Oil lifting coordination group consisting of
 representatives, one each appointed by CNPC and each company comprising the
 Contractor, with the representative of CNPC as the chairman. Such group shall be
 responsible for the preparation of Crude Oil lifting plans for each Calendar
 Year, for Calendar Quarter and for calendar month and shall also be responsible
 for the reasonable and unified arrangements and adjustments of the aforesaid
 Crude Oil lifting plans through close contact with any operator in charge of the
 storage and loading facilities.
       13.8 The Contractor shall have the right to export freely from China all
 Crude Oil which it obtains as set forth in Article 13.3 herein. The Contractor
 shall obtain, with the assistance
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                                        39
                          Zitong Block Petroleum Contract
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 of CNPC, any export license or other permit that may be required in order for
 the Contractor to export from China all Crude Oil which it obtains as set forth
 in Article 13.3 herein.
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                                        40
                          Zitong Block Petroleum Contract
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        ARTICLE 14   QUALITY, QUANTITY, PRICE AND DESTINATION OF CRUDE OIL
       14.1 In accordance with Article 13.3 hereof, the Contractor may obtain the
 aggregate amount of three (3) categories of the Crude Oil referred to in
 Articles 13.3.1, 13.3.2 and 13.3.3 hereof.
       14.2 Quality of the Crude Oil
       14.2.1 The quality analysis of Crude Oil produced from each Oil Field
 within the Contract Area shall be undertaken at the Delivery Point. Such
 analysis shall be carried out on a sample taken by the department and its
 representative agencies authorized by the State Council of the People's Republic
 of China pursuant to standards issued by the State Bureau of Standardization of
 the People's Republic of China or by the Department or Unit.
       14.2.2 The Crude Oil quality analysis referred to in Article 14.2.1 above
 shall include the following:
       (a) density at 20 degree centigrade, in grams per cubic centimeter;
       (b) sulphur content, in weight percentage;
       (c) water content, in weight percentage; and
       (d) basic sediment content, in weight percentage.
       14.3  Quantity of the Crude Oil
       14.3.1 The quantity measurement of the Crude Oil produced from each Oil
 Field within the Contract Area, when being lifted, shall be made at a Delivery
 Point and with measuring devices both to be agreed upon by the Parties. A
 relevant measuring organization of the Chinese Government or a representative
 agency authorized thereby shall, at appropriate regular intervals, calibrate all
 the measuring devices, conduct special testing and issue certificates of
 qualification with respect thereto or confirm their qualification before the
 measuring devices are put into use. The quality and quantity of the Crude Oil
 delivered shall be authenticated in accordance with the commodity quality
 certificate and weight certificate issued by the Bureau and such quality and
 quantity shall be the basis for the accounting settlement.
       14.3.2 If any Party to the Contract believes that the Crude Oil measuring
 devices, sampling or analysis are inaccurate, or has any objection to the
 results specified in the above mentioned certificates, on-site investigations,
 technical exchanges and discussions may be conducted by the Parties to resolve
 the issue in a manner satisfactory to the Parties.
       14.4 Determination of the Crude Oil Price
       14.4.1 The price of various grades of the Crude Oil shall be expressed as
 an FOB price at the Delivery Point. Determination of the Crude Oil price shall
 be made with reference to the prevailing price in arm's length transactions of
 similar quality crude oil on the main world oil markets and the adjustment in
 such price shall be made in accordance with such determinants as the quality of
 the Crude Oil, the terms of delivery, transportation and payment and other
 terms.
       The aforesaid price in arm's length transactions in this Article refers to
 a price at which a
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                          Zitong Block Petroleum Contract
 <PAGE>
 seller sells its crude oil to a buyer who is independent of the seller, but not
 including the prices used by them for government to government transactions
 which do not reflect international oil market price, Crude Oil exchange, or
 barter transactions.
       14.4.2 Where the Crude Oil produced from each Oil Field within the
 Contract Area differs in grades, the prices of such Crude Oil with different
 quality shall be individually determined.
       14.4.3 The price of the Crude Oil produced from all the Oil Fields within
 the Contract Area shall be denominated in U.S. dollars per metric ton. However,
 if an international currency other than the U.S. dollar prevails on the main
 world oil markets as the pricing unit of Crude Oil, the Parties may also use
 that international currency therefor upon mutual agreement.
       14.4.4 Procedure for the Determination of the Crude Oil Price
       14.4.4.1 The Crude Oil price shall be determined once each Calendar
 Quarter. In case the crude oil price prevailing on most world oil markets
 fluctuates, CNPC and the Contractor each shall have the right to propose, at any
 time, that a new Crude Oil price be negotiated and determined.
       14.4.4.2 The Contractor shall, no later than forty-five (45) days prior to
 the commencement of any Calendar Quarter, notify CNPC of its proposed price for
 Crude Oil to be lifted in such Calendar Quarter (for the purpose of this Article
 hereafter referred to as the said Calendar Quarter).
       14.4.4.3 CNPC shall notify the Contractor of its decided price within ten
 (10) days after the receipt of the aforesaid proposed price notified by the
 Contractor. In the absence of a different price notified by CNPC to the
 Contractor within ten (10) days after the receipt of the aforesaid notification,
 the proposed price notified by the Contractor as referred to in Article 14.4.4.2
 herein shall be applied to the Crude Oil to be lifted in the said Calendar
 Quarter.
       14.4.4.4 The Contractor shall, within five (5) days following its receipt
 of notice of a price decided by CNPC, state to CNPC whether the price is
 acceptable. If it is acceptable, then the said decided price shall be regarded
 as the price agreed upon by the Parties for the said Calendar Quarter. If it is
 not acceptable, the Parties shall, within ten (10) days, carry out further
 negotiation in an amicable manner to determine the price for the said Calendar
 Quarter.
       14.4.4.5 In the event that the Parties still cannot reach an agreement on
 the Crude Oil price for the said Calendar Quarter through further negotiations
 by the Parties, the Contractor may lift the Crude Oil in accordance with the
 quota specified for the said Calendar Quarter in Article 13.2 hereof, and the
 Crude Oil price for the preceding Calendar Quarter shall apply provisionally to
 the Crude Oil of such quota and the payment shall be made accordingly. Then, the
 Parties shall negotiate further on the Crude Oil price for the said Calendar
 Quarter, taking into account relevant independent and non-proprietary market
 data on Third Party sales of crude oil in substantial quantities on the main
 world oil markets, adjusted for quality, transportation and other applicable
 differentials. The Parties shall each take into account the information supplied
 and discussed and attempt to agree on a Crude Oil price based upon such
 information by the end of the said Calendar Quarter.
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                                        42
                          Zitong Block Petroleum Contract
 <PAGE>
       (1) In the event that the Parties still cannot reach an agreement in Crude
 Oil price by the end of the said Calendar Quarter, then the Crude Oil price
 shall be the weighted average FOB price of the Crude Oil of the same or similar
 quality sold by CNPC and/or the Contractor to a Third Party or Third Parties and
 produced in the said Calendar Quarter from the Oil Fields described hereafter,
 adjusted for such differences as the quality, delivery, transportation, payment
 and other terms, but excluding the government to government transactions which
 do not reflect international oil market price, crude oil exchange, barter or
 spot transactions.
       The application of the above-mentioned price of Crude Oil sold to a Third
 Party or Third Parties shall be in the following sequence:
       (i) Firstly, the price, calculated and determined in accordance with the
 above-mentioned stipulations, of the Crude Oil produced from the relevant Oil
 Field or Oil Fields in the Contract Area and sold to a Third Party or Third
 Parties shall be applied;
       (ii) In the event no sales as referred to in paragraph (i) above were made
 in the said Calendar Quarter, the price, calculated and determined in accordance
 with the above-mentioned stipulations, of the Crude Oil produced from other Oil
 Fields in the Contract Area and sold to a Third Party or Third Parties shall be
 applied;
       (iii) In the event no sales mentioned in paragraphs (i) and (ii) above
 were made in the said Calendar Quarter, the price, calculated and determined in
 accordance with the above-mentioned stipulations, of the Crude Oil produced from
 the oil fields of other contract areas for Chinese-foreign cooperative
 exploitation of petroleum resources and sold to a Third Party or Third Parties
 shall be applied.
       (2) In the event there are no such Third Party sales of the Crude Oil as
 referred to in Article 14.4.4.5(1) herein during the said Calendar Quarter, then
 the Crude Oil price for the said Calendar Quarter shall be equal to the same
 Crude Oil price of the preceding Calendar Quarter adjusted by the differences in
 the arithmetic average of the average daily selling price for a basket of three
 or more internationally traded crude oils in the said Calendar Quarter compared
 with that for such basket of crude oils for the preceding Calendar Quarter. The
 adjusted price shall be the Crude Oil price for the said Calendar Quarter. The
 crude oils selected for the basket shall each be similar in quality to the Crude
 Oil from the Contract Area and chosen from different countries and shall have
 prices which reflect the conditions of the main world oil markets and shall be
 mutually agreed by the Parties in the Overall Development Program. Any crude oil
 selected for the basket may be substituted at any time by another crude oil upon
 agreement by the Parties.
       (3) If the Parties are unable to agree on a Crude Oil price for a Calendar
 Quarter in which Crude Oil is first produced and delivered from or the
 production of Crude Oil is restored in a Field in the Contract Area, then the
 Crude Oil for the Calendar Quarter shall be priced and/or paid in accordance
 with the arithmetic average price of the prices finally proposed by the Parties
 in the Calendar Quarter. Based on the Crude Oil price agreed upon by the Parties
 for the succeeding Calendar Quarter, the Crude Oil price for the Calendar
 Quarter shall be determined by adjusting retroactively by the difference between
 the arithmetic average prices of the basket of the Crude Oils for the Calendar
 Quarter and the succeeding Calendar Quarter in accordance with the calculation
 method referred to in Article 14.4.4.5 (2) herein.
       14.4.4.6 If, due to the delayed announcement of crude oil prices by the
 main world oil-
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                          Zitong Block Petroleum Contract
 <PAGE>
 producing countries or the main world oil markets, or if, as agreed by CNPC and
 the Contractor, an unstable main world oil market exists, then, the period for
 the determination of the price referred to in Article 14.4.4.2 herein may be
 extended to the end of the said Calendar Quarter in question.
       14.4.4.7 If the Crude Oil prices in the international oil markets or the
 Crude Oil prices quoted in the main oil-producing countries change materially,
 then the Parties will meet and agree to adjust the Crude Oil price
 retroactively. The period for such retroactive adjustment shall not exceed the
 previous Calendar Quarter.
       14.4.5 The Crude Oil for each Calendar Quarter due to CNPC pursuant to
 Article 13 hereof shall be converted in to an amount of money in the currency
 utilized pursuant to Article 14.4.3 herein based on the Crude Oil price for that
 Calendar Quarter finally determined in accordance with the aforesaid provisions
 specified in Article 14.4 herein and such amount of money shall be entered into
 the Joint Account as of the date on which such Crude Oil is lifted.
       14.4.6 The Crude Oil for each Calendar Quarter due to the Contractor
 pursuant to Article 13 hereof shall be converted into an amount of money in the
 currency utilized pursuant to Article 14.4.3 herein based on the Crude Oil price
 for that Calendar Quarter finally determined in accordance with the aforesaid
 provisions specified in Article 14.4 herein and such amount of money shall be
 entered into the Joint Account as of the date on which the Crude Oil is lifted.
       14.5 Terms of Payment for the Purchased Crude Oil Pursuant to Article 13.4
 hereof
       14.5.1 Before the Crude Oil price is determined, the time limit for
 payment shall be agreed upon by the Parties through consultation in accordance
 with the general practice then prevailing on the main world oil markets.
       14.5.2 In case any Party is in default of such payment, such Party shall
 pay interest on arrears of the payment, starting from the first day of such
 default. The interest shall be the seven day term London Inter bank Offered Rate
 (LIBOR) for U.S. dollars quoted by The Hong Kong and Shanghai Banking
 Corporation Limited in London at eleven (11:00) a.m. on the first working day
 following the due date of payment plus five percent (5%).
       14.6 Destination of the Crude Oil
       14.6.1 The destination of Contractor's Crude Oil obtained under the
 Contract shall be at the discretion of the Contractor, except as stipulated in
 Article 14.6.2 herein.
       14.6.2 In accordance with the decisions of the Chinese Government, CNPC
 shall notify the Contractor of any prohibited destinations which infringe on the
 political interests of the People Republic of China. The Contractor shall not
 deliver the Crude Oil to the prohibited destinations as notified.
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                                        44
                          Zitong Block Petroleum Contract
 <PAGE>
        ARTICLE 15   PREFERENCE TO THE EMPLOYMENT OF THE CHINESE PERSONNEL,
                                GOODS AND SERVICES
       15.1 The Contractor shall give preference to Chinese goods, equipment and
 services provided that they are competitive in terms of price, quality and term
 of delivery, when procuring necessary goods, leasing equipment and signing
 subcontracts or other service contracts for the performance of the Petroleum
 Operations.
       15.2 The Contractor shall give preference to the employment of Chinese
 Personnel in the performance of the Petroleum Operations. For this purpose, the
 Contractor shall submit in advance to CNPC and JMC respectively a plan for the
 employment of Chinese Personnel listing all the posts and number of the persons
 involved. CNPC may put forward a list of candidates, in accordance with the
 plan, for such employment, providing suitable qualification and experience
 guidelines are met. For the performance of Petroleum Operations, the Contractor
 shall give preference to employ competent Chinese Personnel and to employ those
 who have become qualified after being trained in accordance with the training
 program.
       15.3 The Chinese engineering design corporations under or entrusted by
 CNPC shall have the right to participate in the master designs and engineering
 designs made by the Contractor for the purpose of the implementation of the
 Contract. Engineering design companies within the territory of the People's
 Republic of China shall be given preference in entering into the subcontracts
 for the aforesaid master design sand engineering designs, provided that their
 technical level, quality, price and delivery time are competitive.
       15.4 After the Contractor signs equipment leasing contracts, service
 contracts or subcontracts with CNPC or its Affiliates in accordance with Article
 15.1 herein, the Contractor shall endeavor to provide technical assistance to
 CNPC or its Affiliates, at the request of CNPC, so as to enable them to meet the
 needs of operations to be undertaken. The expenses so incurred shall be borne by
 CNPC or its Affiliates.
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                                        45
                          Zitong Block Petroleum Contract
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       ARTICLE 16   TRAINING OF CHINESE PERSONNEL AND TRANSFER OF TECHNOLOGY
       16.1 Contractor agrees, in the course of the Petroleum Operations, to
 transfer to CNPC and its affiliates, the advanced technology and managerial
 experience including proprietary technology e.g. patented technology, know-how
 or other confidential technology, etc. used in the performance of the Petroleum
 Operations and the necessary data and/or information for mastering such
 technology and experience, provided, however, such technology to be transferred
 shall be proprietary to the Contractor. If the transfer of any of such
 technology is restricted in any way during the term of the Contract, the
 Contractor shall, to the extent reasonably possible, endeavor to obtain
 permission for the transfer of such restricted technology. The Contractor
 agrees, that in the course of its Petroleum Operations, to train the Chinese
 Personnel including technical, economic, managerial, legal and or other
 professional personnel, in order to improve their technical and/or managerial
 capabilities. Details of training of Chinese Personnel and transfer of
 technology are described in Annex IV - Training of Chinese Personnel and
 Transfer of Technology hereto.
       16.2 Within ninety (90) days following the Date of Commencement of the
 Implementation of the Contract, the Contractor shall, after consultation with
 CNPC, complete and submit a training and technology transfer program for the
 Chinese Personnel in the exploration period and the corresponding budget to JMC
 for review and approval, and upon approval by JMC, put it into practice. The
 Contractor shall, after consultation with CNPC, complete and submit training and
 technology transfer programs and corresponding budgets for the Chinese Personnel
 in the development period and production period, respectively, to the JMC for
 its review and approval before the commencement of the Development Operations
 and Production Operations, and upon approval by JMC, put them into practice in
 time so as to have ample time in advance for such training and technology
 transfer.
       16.3 The purpose, requirement, fields of specialization, scope of
 personnel, specific job categories, type, method, etc. in respect of training of
 Chinese Personnel and transfer of technology shall be determined in Annex
 IV-Training of Chinese Personnel and Transfer of Technology hereto.
       16.4 The expenses and costs incurred for performing the training and
 technology transfer program stipulated in this Article shall be charged to the
 exploration costs if such costs are incurred before the date of approval of the
 Overall Development Program of the first Oil Field and/or Gas Field, and shall
 be charged to the development costs if such costs are incurred after the date of
 approval of the Overall Development Program of the first Oil Field and/or Gas
 Field and before the Date of Commencement of Commercial Production of the first
 Oil Field and/or Gas Field, or shall be charged to the operating costs if such
 costs are incurred after the Date of Commencement of Commercial Production of
 the first Oil Field and/or Gas Field.
       16.5 In the course of the implementation of the Contract, the Parties
 shall have scientific and technical cooperation and academic exchange in
 connection with the Petroleum Operations. The relevant provisions concerning the
 plan, participating personnel and type related to the scientific and technical
 cooperation and academic exchange shall be determined by the Parties. The
 expenses required by the scientific and technical cooperation and academic
 exchange shall be included in the budget specified in Article 16.2 herein and
 charged to the Joint Account. All inventions, experiments or research results
 arising from the
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                                        46
                          Zitong Block Petroleum Contract
 <PAGE>
 said technical cooperation and academic exchange shall be shared by and belong
 to the Parties who, subject to the provisions of Article 22 hereof, shall not
 disclose them to any Third Party.
       16.5.1 In the course of the implementation of the Contract, those
 scientific research projects which are required by the Petroleum Operations but
 not carried out by the Parties may, with the approval of JMC, be commissioned
 to, and carried out by, any Third Party. The Operator shall enter into
 subcontracts or service contracts with relevant scientific research departments
 within the territory of the People's Republic of China, provided that they are
 competent and competitive. The aforesaid required expenses shall be included in
 the budget specified in Article 16.2 herein and charged to the Joint Account.
 All inventions and experimental or research results developed from the aforesaid
 research projects carried out by a Third Party delegated by the Operator shall
 also be shared by and belong to the Parties who, subject to the provisions of
 Article 22 hereof, shall not disclose any of them to any other Third Parties.
 The Operator shall endeavor to incorporate the provisions herein in the
 subcontracts or service contracts signed with a Third Party.
       16.6 The advanced technology and managerial experience, including
 proprietary technology, e.g. patented technology, know-how or other confidential
 technology that the Contractor transfers to CNPC, shall remain the exclusive
 property of the Contractor and also be subject to the confidentiality
 restrictions of Article 22 hereof.
       16.7 For the purpose of the implementation of Article 16 herein and Annex
 IV--Training of Chinese Personnel and Transfer of Technology hereto, the costs
 and expenditures incurred by the Contractor annually for training of CNPC
 Personnel and transfer of technology shall be as follows:
       During the exploration period, the said fee shall be one hundred thousand
 U.S. Dollars (US$100,000) per year; during the development period, the said fee
 shall be two hundred thousand U.S. Dollars (US$200,000) per year; during the
 first ten years of the production period, the said fee shall be one hundred
 thousand U.S. Dollars (US$100,000) per year; during the second ten years of the
 production period, the said fee shall be fifty thousand U.S. Dollars (US$50,000)
 per year; thereafter the said fee shall be twenty five thousand U.S. Dollars
 (US$25,000) per year.
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                          Zitong Block Petroleum Contract
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                    ARTICLE 17   OWNERSHIP OF ASSETS AND DATA
       17.1 All assets purchased, installed and constructed under the Work
 Program and budget for each Oil Field and/or Gas Field within the Contract Area
 shall be owned by CNPC from the date on which all the development costs actually
 incurred by the Contractor in the development period of such Oil Field and/or
 Gas Field have been fully recovered or from the date on which the production
 period expires, even though the aforesaid costs have not been fully recovered.
 The Operator shall be responsible for the acceptance inspection or testing of
 the said assets and CNPC may, as it deems necessary, send its experts to
 participate in such acceptance inspection or testing. In the production period,
 the Operator may use these aforesaid CNPC-owned assets free of charge for
 performing the Petroleum Operations. Such assets shall not be used in any
 operations other than the Petroleum Operations or any operations by Third
 Parties without the consent of the Parties.
       17.2 Equipment and facilities which are owned by a Third Party and are
 either leased by the Operator or temporarily brought into the territory of the
 People's Republic of China for the performance of the Petroleum Operations shall
 not be deemed as assets owned by CNPC. Such equipment and facilities may be
 exported from the People's Republic of China, and CNPC shall assist in handling
 export formalities.
       17.3 The ownership of all of the data, records, samples, vouchers, and
 other original data obtained in the course of performing the Petroleum
 Operations shall vest in CNPC. For the purpose of the implementation of the
 Contract, the availability and sale of all the data related to the Contract
 owned by Chinese side and required by the Contractor shall be made through CNPC.
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                                        48
                          Zitong Block Petroleum Contract
 <PAGE>
        ARTICLE 18   ASSOCIATED NATURAL GAS AND NON-ASSOCIATED NATURAL GAS
       18.1 Associated Natural Gas
       18.1.1 The Associated Natural Gas produced from any Oil Field within the
 Contract Area shall be primarily used for purposes related to the operations of
 production and production enhancement of Oil Fields such as gas injection, gas
 lifting and power generation.
       18.1.2 Based on the principle of full utilization of the Associated
 Natural Gas and with no impediment to normal production of the Crude Oil, the
 Overall Development Program of each Oil Field shall include a plan of
 utilization of the Associated Natural Gas. If there is any excess Associated
 Natural Gas in any Oil Field after utilization pursuant to Article 18.1.1 herein
 (hereafter referred to as "excess Associated Natural Gas"), the Operator shall
 carry out a feasibility study regarding the utilization of such excess
 Associated Natural Gas of such Oil Field. Such feasibility study, if carried out
 before the Development Operations of an Oil Field, shall be included as part of
 the feasibility study on the development of the Oil Field. With respect to any
 Oil Field already under commercial production, if a further feasibility study on
 the utilization of its excess Associated Natural Gas is required, such study
 shall be carried out by the Operator and a report thereon shall be submitted to
 JMC for review and discussion. If the Parties decide to utilize the excess
 Associated Natural Gas of any Oil Field, the construction of facilities for such
 utilization and the production of the excess Associated Natural Gas shall be
 carried out at the same time as the Oil Field construction and production.
       18.1.2.1 If the Parties agree that the excess Associated Natural Gas of an
 Oil Field has no commercial value, then such gas shall be disposed of by the
 Operator subject to relevant regulations concerning the environmental
 protection, provided that there is no impediment to normal production of the
 Crude Oil.
       18.1.2.2 If any Party to the Contract considers unilaterally that the
 excess Associated Natural Gas of an Oil Field has commercial value, such gas may
 be utilized by that Party at its own expense without affecting timing and
 optimal development of the Oil Field(s) concerned, the amount of "cost recovery
 oil" and "allocable remainder oil" due to the other Party to the Contract which
 does not invest in such utilization.
       18.1.2.3 If the Parties agree that excess Associated Natural Gas of an Oil
 Field has commercial value, the Parties shall make further investment in its
 utilization in proportion to their respective participating interests in the
 development of the Oil Field. However, the Parties' respective share in the
 i(degree)cost recovery oil" and i(degree)allocable remainder oili+/-allocated
 according to the Contract shall not be affected hereby. If the Parties disagree
 on the commercial utilization of such excess Associated Natural Gas of that Oil
 Field, they shall, guided by the principle of mutual benefit, carry out further
 negotiations to reach an agreement in writing.
       If the Parties fail to reach agreement through negotiations, CNPC shall
 reserve the right to dispose of the excess Associated Natural Gas of the said
 Oil Field unilaterally. If CNPC decides to utilize the said excess Associated
 Natural Gas in accordance with the Article 18.1.2.2 hereof, the Contractor shall
 have the right to join in the utilization of the said excess Associated Natural
 Gas within three (3) years after the facilities for utilizing the said excess
 Associated Natural Gas are completed unilaterally by CNPC in accordance with an
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                          Zitong Block Petroleum Contract
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 Associated Natural Gas utilization programme formulated by CNPC. If the
 Contractor decides in writing to participate in the utilization of the said
 excess Associated Natural Gas within the three (3) years mentioned above, then,
 the Contractor shall pay CNPC an amount of money, in addition to the forty-nine
 percent (49%) of the cost spent by CNPC on the said utilization of excess
 Associated Natural Gas with Deemed interests thereon up to the date of
 Contractor's submission of the written notice to CNPC. Such amount shall be
 equal to Two times (200%) of the foregoing forty-nine percent (49%) of the costs
 for utilization of the excess Associated Natural Gas with Deemed Interests
 thereon and such amount of money shall not be charged into the Joint Account and
 shall not be deemed recoverable. Thereafter, the costs to be incurred in such
 utilization of excess Associated Natural Gas shall be provided by the Parties in
 proportion to their respective participating interests in the development of the
 Oil Field.
       If the Contractor decides, after the three (3) years mentioned above, not
 to participate in the utilization of the excess Associated Natural Gas, the
 Contractor shall be deemed to have waived all its rights to use the said excess
 Associated Natural Gas.
       18.1.3 Expenses incurred in the utilization of the Associated Natural Gas
 of any Oil Field as stipulated in Article 18.1.1 herein, and those incurred in
 carrying out a feasibility study on the utilization of the excess Associated
 Natural Gas after commencement of commercial production of the Oil Field
 referred to in Article 18.1.2 herein shall be charged to the Development Costs
 of the Oil Field.
       Royalty and Value Added Tax of the production of the excess Associated
 Natural Gas shall be paid to the Chinese government through CNPC.
       All remaining excess Associated Natural Gas after the deduction of Value
 Added Tax, Royalty and cost recovery shall be allocated to CNPC and the
 Contractor in accordance with their respective participating interests in the
 utilization of the excess Associated Natural Gas in accordance with Article
 18.1.2.3 and Article 13 herein.
       18.2 Non-associated Natural Gas
       18.2.1 Determination of Commerciality for the Gas Field
       18.2.1.1 The commercial value of the Non-associated Natural Gas shall be
 determined by considering the gas reserves, gas transportation threshold volume,
 estimated production period, the cost for field processing facilities and the
 construction of the pipeline network, gas transportation costs, market
 development and marketing, etc.
       18.2.1.2 If any gas discovery (hereinafter referred to as "the Gas
 Reservoir") is made within the Contract Area, the Operator shall report it
 promptly to JMC. JMC shall notice CNPC in writing within three (3) days
 following the date of its receiving the report from the Operator.
       18.2.1.3 If JMC or the Contractor makes a decision that a Gas Reservoir is
 worthy of geological appraisal, the Operator shall submit to JMC an appraisal
 Work Program for evaluating the geological reserves including appraisal work and
 timetable for such Gas Reservoir as soon as possible. Such appraisal Work
 Program shall be worked out no later than
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                          Zitong Block Petroleum Contract
 <PAGE>
 ninety (90) days from the date of the aforesaid decision made by JMC or the
 Contractor. The appraisal Work Program shall, in so far as is practicable, be
 based on conducting the appraisal work continuously, with a view to commencing
 operations within one hundred and eighty (180) days from the date of the
 aforesaid decision made by JMC or the Contractor.
       18.2.1.4 Within one (1) year after the completion of the last Appraisal
 Well, the Operator shall submit to JMC a detailed appraisal report on the
 geological reserves of the Gas Reservoir. Under special circumstances, the
 above-mentioned periods maybe reasonably extended upon agreement of the Parties.
 The appraisal report shall include, but not be limited to, the Gas Reservoir
 properties, the depth of the gas-bearing reservoir, the reserves in place, the
 recoverable reserves, the recovery factor, the estimated production periods, the
 estimated production profile and the constituent analysis of the Natural Gas.
       18.2.1.5 Within thirty (30) days following the submission of the
 geological appraisal report on any Gas Reservoir, JMC shall convene a meeting to
 review such report. Within five (5) days after JMC has reviewed and adopted such
 report, JMC shall submit the geological appraisal report to CNPC and such report
 shall be submitted to the relevant authorities of the Chinese Government through
 CNPC for approval.
       18.2.1.6 If JMC unanimously determines that the Gas Reservoir has no
 commercial value, such Gas Reservoir may be retained within the Contract Area
 during the term of the exploration period. If the JMC's determination of
 non-commerciality of such Gas Reservoir has not changed at the expiration of the
 exploration period, the relevant area of such Gas Reservoir shall be excluded
 from the Contract Area.
       18.2.1.7 If, after the geological appraisal, JMC can not reach an
 agreement on the potential commerciality of the Gas Reservoir, the Parties shall
 make their best efforts to seek another solution thereto. However, if JMC can
 not reach an agreement on the potential commerciality of any Gas Reservoir
 within ninety (90) days following the submission of the appraisal report
 prepared by the Operator in accordance with Article 18.2.1.4 herein, then such
 Gas Reservoir shall be dealt with in accordance with the following procedure:
       (1) If the Contractor informs CNPC in writing that a Gas Reservoir has no
 commercial value, then the Contractor shall be deemed to have waived its rights
 to participate in the development of that Gas Reservoir. The relevant area
 covered by that Gas Reservoir shall, however, be retained within the Contract
 Area until the expiration of the exploration period. CNPC shall have the right
 to solely develop such Gas Reservoir before the expiration of the exploration
 period.
       (2) If CNPC considers a Gas Reservoir to have no potential commercial
 value while the Contractor considers that it is a Gas Reservoir having potential
 commercial value, the Contractor may solely provide the entire development
 investment and undertake development of the said Gas Reservoir, and the said Gas
 Reservoir shall be deemed as a Gas Field in which CNPC has no participating
 interests. The entire risk related to the development investment spent for the
 said Gas Field shall be borne solely by the Contractor.
       18.2.1.8 If the Parties consider any Gas Reservoir having potential
 commercial value, but the development conditions cannot be established due to
 the lack of the market or the consuming facilities, then it shall go into the
 Market Development Period for the Contract.
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                                        51
                          Zitong Block Petroleum Contract
 <PAGE>
 The Market Development Period shall not be more than two (2) years in any cases
 and the area covered by the said Gas Reservoir shall be retained within the
 Contract Area until the expiration of the said Market Development Period. The
 Parties shall establish a Natural Gas Development Committee (hereinafter
 referred to as "the Committee") in accordance with Article 7.4.2 hereof for the
 purpose of the markets. CNPC and the Contractor shall each appoint an equal
 number of specialists to form such Committee in order to seek and develop
 jointly the Natural Gas market. The Operator shall make out a Natural Gas market
 development program and the budget thereon within ninety (90) days following the
 date that the Committee was established. The Natural Gas market development
 program shall include, but not limited to, the appraisal for Gas Field
 development, Natural Gas processing and gathering engineering, the appraisal for
 market development, the plan for the pipeline construction, the appraisal for
 the downstream engineering, the methods of pricing, the methods for the
 investing and financing and the Environmental Impact Statements.
       The Committee shall carry out the following work on behalf of the Parties
 in addition to the above-mentioned work stipulated in Market Development Program
 for the Natural Gas during the Market Development Period:
       (1) submit the geological appraisal report prepared by the Operator to the
 China National Reserves Committee for its approval and make the Natural Gas
 reserves of any Gas Field reach the grades of proved reserves,
       (2) determine the methods and formulas for the Natural Gas pricing,
       (3) make sure the funds required for the development of the Gas Field and
 consuming facilities,
       (4) prepare the Overall Development Program for the Gas Field.
       JMC shall submit to CNPC for its confirmation the appraisal report and the
 Overall Development Program of the said Gas Field to be developed, CNPC shall
 submit the Overall Development Program of the Gas Field to the Department or
 Unit for its review and approval as soon as possible after the completion of the
 market development.
       18.2.2 The Operator shall perform the Development Operations in accordance
 with the Overall Development Program of each Gas Field approved by the
 Department or Unit. If the Operator, without adequate justification, fails to
 commence such Development Operations within ninety (90) days after the date of
 approval of the Overall Development Program of any Gas Field by the Department
 or Unit, CNPC shall have the right to request the Contractor to give up all its
 rights in the said Gas Field. The Contractor shall waive all of its rights in
 the said Gas Field from the date of its receipt by the Contractor of the written
 notice in this regard from CNPC.
       18.2.3 The production period of any Gas Field within the Contract Area
 shall be a period of twenty (20) consecutive Production Years beginning on the
 Date of Commencement of Commercial Production of the said Gas Field up to the
 date of the expiration of the production period as specified in the Overall
 Development Program approved by the Department or Unit.
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                                        52
                          Zitong Block Petroleum Contract
 <PAGE>
       18.2.4 The term of the Contract shall not go beyond thirty (30)
 consecutive Contract Years from the Date of Commencement of the Implementation
 of the Contract for the Non-associated Natural Gas Field.
       18.2.5 Cost Recovery
       18.2.5.1 All the costs incurred in the performance of Petroleum Operations
 shall be recovered in accordance with Annex II - Accounting Procedure hereto and
 the provisions described as follows:
       18.2.5.1.1 The operating costs for any given Calendar Year actually
 incurred by CNPC and the Contractor in respect of each Gas Field pursuant to
 Article 12.1.3 hereof, shall be recovered in kind or cash by the Parties out of
 the Natural Gas produced from the said Gas Field during that Calendar Year in
 accordance with Annex II - Accounting Procedure hereto, after the operating
 costs have been converted into a quantity of the Natural Gas or cash on the
 basis of the Natural Gas price determined in accordance with Article 18.5.3
 hereof. Unrecovered operating costs shall be carried forward to the succeeding
 Calendar Year(s).
       18.2.5.1.2 The exploration costs incurred by the Contractor shall be
 recovered as follows:
       After the Date of Commencement of Commercial Production of a Gas Field
 within the Contract Area, the exploration costs incurred by the Contractor in
 respect of the Contract Area shall be recovered in kind out of the Natural Gas
 produced from any Gas Field within the Contract Area in accordance with Article
 18.3.2.2.2 hereof, after the exploration costs have been converted into a
 quantity of the Natural Gas based on the Natural Gas price determined in
 accordance with Article 18.5.3 hereof. The exploration costs shall be recovered
 without any interest.
       The costs incurred by the Contractor during the Market Development Period
 shall be recovered as the exploration costs.
       If no Gas Field is discovered within the Contract Area, the exploration
 costs incurred by the Contractor shall be deemed as its loss. Under no
 circumstances shall CNPC reimburse the Contractor for such loss.
       18.2.5.1.3 The development costs in respect of each Gas Field incurred by
 CNPC and the Contractor and Deemed Interest thereon shall be recovered as
 follows:
       18.2.5.1.3.1 After the Date of Commencement of Commercial Production of
 any Gas Field within the Contract Area, the development costs in respect of such
 Gas Field incurred by CNPC and the Contractor and Deemed Interest thereon
 calculated in accordance with Article 18.2.5.1.3.2 herein shall be recovered in
 kind or cash out of the Natural Gas produced from such Gas Field in accordance
 with Article 18.3.2.2.2 hereof, after the development costs have been converted
 into a quantity of the Natural Gas or cash based on the Natural Gas price
 determined in accordance with Article 18.5.3 hereof.
       18.2.5.1.3.2 Deemed Interest on the development costs incurred by CNPC and
 the Contractor for each Gas Field within the Contract Area shall be calculated
 at a fixed annual
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                                        53
                          Zitong Block Petroleum Contract
 <PAGE>
 compound rate of nine percent (9%) from the first day of the month following the
 month in which such development costs expended by each Party to the Contract are
 actually received in the bank account of the Joint Account opened by the
 Operator. The detailed method of such calculation shall be as provided in Annex
 II - Accounting Procedure hereto.
       18.3 The production and allocation of the Non-Associated Natural Gas
       18.3.1 The Operator shall carry out the production operations evenly in
 accordance with the production profile, adjusted as the case may be, set forth
 in the Overall Development Program for each Gas Field as approved by the
 Department or Unit, and in accordance with the daily deliverability, the
 delivery pressure, the delivery specification as stipulated in the Natural Gas
 Sale Agreement signed with the downstream users including, but not limited to,
 the pipeline transportation company, the power generation plant, the chemical
 plant, the liquefied Natural Gas plant, the liquefied petroleum gas plant and
 the gas marketing company, etc.
       18.3.2 The Annual Gross Production of the Natural Gas of each Gas Field
 within the Contract Area in each Calendar Year during the production period
 shall be allocated in accordance with the following sequence and proportions:
       18.3.2.1 The percentages of the Annual Gross Production of the Natural Gas
 specified in paragraphs (a) and (b) hereunder shall be used for payments of the
 Value Added Tax and of Royalty respectively and shall be paid in kind to the
 relevant authorities of the Chinese Government through CNPC.
       (a) Value Added Tax shall be paid in accordance with relevant regulations
 of the People's Republic of China; and
       (b) Royalty shall be paid in accordance with relevant regulations of the
 People's Republic of China.
       18.3.2.2 Seventy percent (70%) of the Annual Gross Production of the
 Natural Gas shall be deemed as the "cost recovery gas" and shall be used for
 payments or for cost recovery in the following sequence:
       18.3.2.2.1 Payment in kind or cash for the operating costs actually
 incurred but not yet recovered by the Parties pursuant to Article 18.3.2.2.1
 hereof after the price of the said "cost recovery gas" has been determined in
 accordance with Article 18.5.3 hereof.
       18.3.2.2.2 The remainder of the "cost recovery gas" shall, after payment
 for operating costs in accordance with Article 18.3.2.2.1 herein, be deemed as
 "investment recovery gas". Such "investment recovery gas" shall be used for the
 recovery of the exploration costs in respect of the Contract Area which were
 incurred and not yet recovered by the Contractor, and shall be used for the
 recovery of the development costs in respect of the Gas Field which were
 incurred and not yet recovered by CNPC and the Contractor in accordance with
 Articles 18.2.5.1.2 and 18.2.5.1.3 hereof, and Deemed Interest thereon. The
 method of recovery and the recovery sequence are as follows:
       (a) Beginning in the Calendar Year during which the commercial production
 of any Gas
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                                        54
                          Zitong Block Petroleum Contract
 <PAGE>
 Field within the Contract Area commences, the "investment recovery gas" referred
 to in Article 18.3.2.2.2 herein, based on the price which has been determined in
 accordance with Article 18.5.3 hereof, shall be paid in kind or cash first to
 the companies comprising the Contractor for the recovery of the exploration
 costs which were incurred in respect of, and have not yet been recovered from,
 the Contract Area. The unrecovered exploration costs shall be carried forward to
 and recovered from the "investment recovery gas" in succeeding Calendar Years
 until fully recovered.
       (b) Beginning in the Calendar Year during which the exploration costs
 incurred by the Contractor in respect of the Contract Area have been fully
 recovered, the remainder of the "investment recovery gas" of an Gas Field shall
 be used for the simultaneous recovery of the development costs incurred and not
 yet recovered respectively by CNPC and the Contractor and Deemed Interest
 thereon in respect of such Gas Field in proportion to their respective
 participating interests therein after the price of such remainder of the
 "investment recovery gas" has been determined in accordance with Article 18.5.3
 hereof. The unrecovered development costs and Deemed Interest thereon shall be
 carried forward to and recovered from the "investment recovery gas" in
 succeeding Calendar Years until fully recovered.
       (c) During the production period of a Gas Field, costs for an additional
 development project incurred pursuant to Article 11.9 hereof and Deemed Interest
 thereon shall be recovered together with the unrecovered development costs and
 Deemed Interest thereon. If the development costs and Deemed Interest thereon
 have been fully recovered, then costs for the said additional development
 project and Deemed Interest thereon shall be recovered from the "investment
 recovery gas" of the Gas Field referred to in Article 18.3.2.2.2 herein in
 accordance with the provisions specified in Article 18.3.2 herein. The
 unrecovered costs for the additional development project and Deemed Interest
 thereon shall be carried forward to and recovered in succeeding Calendar Years
 until fully recovered.
       (d) After the recovery of a Gas Field's development costs and Deemed
 Interest thereon and/or costs for the additional development project and Deemed
 Interest thereon from any Gas Field by the Parties, the remainder of the
 "investment recovery gas" shall automatically be regarded as part of the
 "remainder gas" referred to in Article 18.3.2.3 herein. By the date of
 expiration of the production period of an Gas Field pursuant to Article 18.2.3
 hereof, if any development costs and Deemed Interest thereon and/or costs for
 the additional development project incurred in respect of such Gas Field and
 Deemed Interest thereon have not yet been fully recovered, then such unrecovered
 costs and Deemed Interest thereon shall be regarded as a loss, and the Parties
 shall bear the loss in proportion to their respective participating interests.
       18.3.2.3 The remainder of the Annual Gross Production of the Natural Gas
 after the allocation referred to in Articles 18.3.2.1 and 18.3.2.2 herein shall
 be deemed as "remainder gas". Such "remainder gas" shall be divided into "share
 gas" of the Chinese side and "allocable remainder gas". The "allocable remainder
 gas" of each Gas Field in each Calendar Year shall be equal to the "remainder
 gas" of that Calendar Year multiplied by the factor (X) for each Gas Field
 within the Contract Area in that Calendar Year. The factor (X) of each Gas Field
 in each Calendar Year shall be determined in accordance with the following
 successive incremental tiers on the basis of the Annual Gross Production of the
 Natural Gas from such Gas Field during that Calendar Year.
 --------------------------------------------------------------------------------
                                        55
                          Zitong Block Petroleum Contract
 <PAGE>
 <TABLE>
 <CAPTION>
 ---------------------------------------------------------------------------------------
 -
 Annual Gross Production of Natural Gas         Factors (X) in Percentage Applicable to
             From Each Gas                    Each Production Tier of Each Gas Within 
 the
       (Millions of Cubic Meters)                            Contract Area
 ---------------------------------------------------------------------------------------
 -
 <S>                                                               <C>
 Equal to or Less than 500                                         98
 ---------------------------------------------------------------------------------------
 -
 Over 500 to 1,000                                                 96
 ---------------------------------------------------------------------------------------
 -
 Over 1,000 to 1,500                                               94
 ---------------------------------------------------------------------------------------
 -
 Over 1,500 to 2,000                                               90
 ---------------------------------------------------------------------------------------
 -
 Over 2,000 to 3,000                                               75
 ---------------------------------------------------------------------------------------
 -
 Over 3,000 to 4,000                                               60
 ---------------------------------------------------------------------------------------
 -
 Over 4,000 to 5,000                                               50
 ---------------------------------------------------------------------------------------
 -
 Over 5,000                                                        40
 ---------------------------------------------------------------------------------------
 -
 </TABLE>
       18.3.2.4 The "allocable remainder gas" of the Contract Area in each
 Calendar Year referred to in Article 18.3.2.3 herein shall be shared by the
 Parties in proportion to their actual respective participating interests in each
 Gas Field.
       18.4 The provisions of Non-Associate Natural Gas in Article 18.3 herein
 shall apply, by analogy, to Condensates produced from the Contract Area.
       18.5 Quality, Quantity and Price of the Non-associated Natural Gas
       18.5.1 Quality of the Natural Gas
       18.5.1.1 The quality analysis of the Natural Gas produced from each Gas
 Field within the Contract Area shall be undertaken at the Delivery Point. Such
 analysis shall be carried out on a sample taken by the departments and their
 representative agencies authorized by the State Council of the People's Republic
 of China pursuant to standards issued by the State Bureau of Standardization of
 the People's Republic of China or by the Department or Unit.
       18.5.1.2 The Natural Gas quality analysis referred to in Article 18.5.1.1
 above shall include, but not limited to, the following:
       (1)  Hydrocarbon Content, J percent
       (2)  Gross Heating value (MJ/SCM(plus/minus))
       (3)  Total Sulphur Content, ppm
       (4) Water Content, grams/SCM (at standard conditions)
       (5) Hydrocarbon dew-point ((degrees C))
       (6) Carbon dioxide Content, %
       (7) Dust and Deleterious Solid Content, %
       (8) and any other analysis data required by the term of a Natural Gas Sale
 Agreement.
       18.5.2 Quantity of the Natural Gas
       18.5.2.1 The quantity measurement of the Natural Gas produced from each
 Gas Field within the Contract Area, when being lifted, shall be made at a
 Delivery Point and with measuring devices both to be agreed upon by the Parties.
 The standard temperature shall be at twenty degree centigrade (20 (degrees C))
 and the standard pressure shall be at 101.325kpa for the measurement of the
 Natural Gas. A relevant measuring organization of the Chinese Government or a
 representative agency authorized thereby shall, at appropriate regular
 intervals, calibrate all the measuring devices, conduct special testing and
 issue certificates of
 --------------------------------------------------------------------------------
                                        56
                          Zitong Block Petroleum Contract
 <PAGE>
 qualification with respect thereto or confirm their qualification before the
 measuring devices are put into use. The quality and quantity of the Natural Gas
 delivered shall be authenticated in accordance with the commodity quality
 certificate and volume certificate issued by the Bureau and such quality and
 quantity shall be the basis for the accounting settlement.
       18.5.2.2 If any Party to the Contract believes that the Natural Gas
 measuring devices, sampling or analysis are inaccurate, or has any objection to
 the results specified in the abovementioned certificates, on-site
 investigations, technical exchanges and discussions may be conducted by the
 Parties to resolve the issue in a manner satisfactory to the Parties.
       18.5.3 The price of the Natural Gas
       18.5.3.1 For the purpose of the "cost recovery" set forth in Article 18.2
 herein, the price of the Natural Gas shall be the actual sale price stipulated
 in the Natural Gas Sale Agreement.
       18.5.3.2 Where the Natural Gas produced from each Gas Field within the
 Contract Area differs in grades, the prices of such Natural Gas with different
 quality shall be determined by the Parties through negotiation according to the
 sale price of the pipeline gas after commingling the such different grade
 Natural Gas set forth in the Natural Gas Sale Agreement.
       18.5.3.3 The price of the Natural Gas produced from all the Gas Fields
 within the Contract Area shall be denominated in U.S. dollars or another
 currency other than U.S. dollars agreed by the Parties per standard cubic meter.
       18.5.3.4 The Natural Gas for each Calendar Quarter due to CNPC pursuant to
 Article 18.3 hereof shall be converted into an amount of money in the currency
 utilized pursuant to Article 18.5.3.3 herein based on the Natural Gas price
 determined in accordance with Article 18.5.3 herein and such amount of money
 shall be entered into the Joint Account as of the date on which such Natural Gas
 is delivered.
       18.5.3.5 The Natural Gas for each Calendar Quarter due to the Contractor
 pursuant to Article 18.3 hereof shall be converted into an amount of money in
 the currency utilized pursuant to Article 18.5.3.3 herein based on the Natural
 Gas price determined in accordance with Article 18.5.3 herein and such amount of
 money shall be entered into the Joint Account as of the date on which the
 Natural Gas is delivered.
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                                        57
                          Zitong Block Petroleum Contract
 <PAGE>
              ARTICLE 19   ACCOUNTING, AUDITING AND PERSONNEL COSTS
       19.1 Accounting
       Annex II - Accounting Procedure hereto contains the guidelines for the
 Operator to keep accounting books and records and make financial settlements.
 The Operator shall keep and settle the accounts for all the financial activities
 in respect of the Contract Area and maintain all the accounting books and
 records in accordance with Annex II - Accounting Procedure hereto in order to
 accurately reflect the exploration costs, development costs with Deemed Interest
 thereon and operating costs incurred in the performance of the Petroleum
 Operations in respect of the Contract Area, as well as quantity and monetary
 value of the production and allocation of Crude Oil and Natural Gas. The
 Operator shall submit detailed statements and relevant written reports to JMC
 and the departments concerned.
       19.2 Auditing
       19.2.1 Any non-Operator Party to the Contract shall have the right to
 audit all the Operator's Joint Account accounting books and records after the
 end of each Calendar Year and give the Operator a written notice of the auditing
 results. The auditing shall be completed within twenty-four (24) months after
 the end of each Calendar Year. In the absence of any written notice of the
 exception to the auditing results given by the non-Operator Party within such
 period or if the annual Joint Account accounting books and records of the
 Operator are not audited by any non-Operator Party within such period, the
 Operator's Joint Account accounting books and records shall be deemed correct. A
 special auditing of the Operator's Joint Account accounting books and records
 may be made due to some special requirements during a Calendar Year.
       19.2.2 If the auditing referred to in Article 19.2.1 herein is conducted,
 the Operator shall be given thirty (30) days' notice prior to the date of
 commencement of such auditing. There shall be no impediment to normal Petroleum
 Operations during the period of any audit.
       19.2.3 The auditors shall be entitled to access to all relevant Joint
 Account records, files and other information and may inspect such sites and
 facilities as necessary.
       19.2.4 Within sixty (60) days after receiving a notice of any Party's
 exceptions to the auditing results, the Operator shall give explanations to the
 matters posed by the exceptions to JMC, which shall make decisions on these
 matters.
       19.3 Personnel Costs
       19.3.1 The personnel costs mean the remuneration and other related charges
 paid on the basis of the working time spent by personnel who are engaged in
 administration, management, accounting, finance, tax, employee relations,
 procurement, legal affairs, computer services, engineering, geology, geophysics,
 drilling and Production Operations as well as all other work for the
 implementation of the Contract.
       19.3.1.1 The salaries or wages of personnel in various subordinate bodies
 of JMC and of all employees engaged in the performance of the Petroleum
 Operations shall be included in the personnel costs as provided in Article
 19.3.1 herein.
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                                        58
                          Zitong Block Petroleum Contract
 <PAGE>
       19.3.1.2 Personnel costs which are classified as the overhead of the
 superior management organization pursuant to Article 5.2.18 of Annex II -
 Accounting Procedure hereto shall not be included in the personnel cost
 mentioned herein.
       19.3.2 After the Date of Commencement of the Implementation of the
 Contract, the Operator shall work out a staffing plan for its organization and a
 personnel costs plan with respect thereto (including an itemized plan of
 personnel costs, such as basic salary or wage, overseas allowance and area
 allowance, etc.) before the beginning of each Calendar Year and submit such plan
 with the annual Work Program and budget to JMC for review and examination.
       During the exploration period, the Operator shall submit a staffing plan
 for its organization and a personnel costs plan with the annual Work Program and
 budget to JMC for review and examination.
       In the development period and production period, the Operator shall submit
 a staffing plan for its organization and a personnel costs plan with the annual
 Work Program and budget to JMC for review and examination and the Contractor
 shall provide to CNPC with an itemized plan of personnel costs of the
 Contractor's staff, CNPC shall bear the obligation of confidentiality to such
 information provided by the Contractor.
       The Operator shall charge the personnel costs of the Contractor's
 personnel actually incurred to the Joint Account.
       CNPC shall have the right to audit the personnel costs charged to the
 Joint Account.
       19.3.3 The settlement of all charges for the salaries and wages of CNPC
 personnel mentioned in the second paragraph of Article 7.7 hereof shall be made
 between CNPC and the Operator, and CNPC personnel shall be responsible for all
 individual income tax in accordance with the provisions of the individual income
 tax law of the People's Republic of China.
       19.3.4 In the development period, the level of the salaries and wages and
 other related charges paid to the Expatriate employees shall be made by the
 Contractor through consultation with CNPC. After the Date of the Commencement of
 Commercial Production of the first Oil Field and/or Gas Field, the level of the
 salaries and wages and other related charges paid to the Expatriate and
 employees shall be discussed and agreed by the Parties. The Operator's employees
 shall pay any individual income tax due in accordance with the provisions of the
 individual income tax law of the Peoples Republic of China.
 --------------------------------------------------------------------------------
                                        57
                          Zitong Block Petroleum Contract
 <PAGE>
                              ARTICLE 20   TAXATION
       20.1 The Contractor shall pay taxes to the Government of the People's
 Republic of China subject to the tax laws and regulations of the People's
 Republic of China.
       20.2 The Operator shall advise the Subcontractors who render services for
 the Contract that they and their employees shall pay taxes to the Government of
 the People's Republic of China subject to the tax laws and regulations of the
 People's Republic of China.
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                                        60
                          Zitong Block Petroleum Contract
 <PAGE>
                             ARTICLE 21   INSURANCE
       21.1 The Operator shall work out an insurance program for the Exploration
 Operations and submit it to JMC for review and approval within one hundred and
 twenty (120) days after the Date of Commencement of the Implementation of the
 Contract. The Operator shall, on behalf of the Parties, obtain the insurance
 contracts in accordance with such program as approved by JMC before commencement
 of Petroleum Operations within the Contract Area.
       Similar provisions shall apply in respect of Development Operations and
 Production Operations.
       21.2 All of the insurance items as approved in the insurance program shall
 be insured with the People's Insurance Company of China or other insurance
 companies established within the territory of the People's Republic of China.
       21.3 The insurance programs worked out by the Operator shall include, but
 not be limited to, the following insurance covering:
       (a) damages to and expenses of all drilling installations and equipment,
 including damages to and expenses of the properties used on work sites and
 supply bases for the Petroleum Operations, while the equipment and properties
 owned by Third Party rendering services to the Operator shall be handled in
 accordance with Article 21.5 herein;
       (b) damages to and expenses of any of the equipment or installations for
 production, storage and transportation, and buildings in the course of
 construction and installation;
       (c) damages to and expenses of the Crude Oil and/or Natural Gas production
 installations, facilities, equipment and pipelines;
       (d) liability to Third Parties;
       (e) liability for pollution and expenses for cleaning up in the course of
 drilling and the Production Operations;
       (f) expenses for killing blowouts;
       (g) liability incurred by the Operator in hiring land drilling rigs,
 vessels and aircraft serving the Petroleum Operations;
       (h) liability for cleaning the remains; and
       (i) losses and expenses incurred during the transportation and storage in
 transit of goods shipped from different parts of the world and other areas
 outside the Contract Area to the work sites.
       21.4 In any insurance contracts, the deductibles shall be determined by
 the Parties through consultation, and losses within the deductible limits shall
 be chargeable to the Joint Account and be borne by Parties in proportion to
 their respective participating interests in the relevant operations as provided
 in Article 5.2.7 of Annex II hereof.
 --------------------------------------------------------------------------------
                                        61
                          Zitong Block Petroleum Contract
 <PAGE>
       21.5 When signing subcontracts or lease contracts, the Operator shall
 endeavor to require Subcontractors and lessors to insure their risks under the
 relevant subcontracts with the People's Insurance Company of China or other
 insurance companies as mentioned in Article 21.2 hereof and ask these
 Subcontractors or lessors to contact the People's Insurance Company of China or
 other insurance companies as mentioned in Article 21.2 hereof for arrangement of
 the necessary insurance.
       21.6 In the course of the Petroleum Operations, the Parties shall cover
 separately personnel accidental death and injury insurance with respect to
 personnel assigned by them respectively. The premiums in respect thereof shall
 be dealt with in the following way: the premiums for personnel accidental death
 and injury insurance with respect to personnel whose costs are charged to the
 Joint Account pursuant to the provisions of the Contract shall be charged to the
 Joint Account, and those with respect to other personnel shall be borne
 respectively by the Parties by which they are assigned.
       21.7 Insurance companies owned by or affiliated with any Party to the
 Contract, or the Parties themselves, may reinsure the People's Insurance Company
 of China or other insurance companies as mentioned in Article 21.2 hereof by
 reaching an agreement with such company if they are interested in covering any
 part of the insurance program hereof.
       21.8 All motor vehicles used in the Petroleum Operations shall be insured
 with the People's Insurance Company of China or other insurance companies as
 mentioned in Article 21.2 hereof.
       21.9 The premiums of insurance in the exploration period and the
 development period shall be charged respectively to the exploration costs and
 development costs while those in the production period shall be charged to the
 operating costs.
       21.10 Any claim under the insurances of the agreed insurance program
 charged to the Joint Account shall be handled by the Operator and any recovery
 made from insurers shall be credited to the Joint Account.
 --------------------------------------------------------------------------------
                                        62
                          Zitong Block Petroleum Contract
 <PAGE>
                           ARTICLE 22   CONFIDENTIALITY
       22.1 CNPC shall, in conformity with applicable laws and regulations of the
 Government of the People's Republic of China on confidentiality and by taking
 into account international practice, determine the confidentiality periods for
 which the Contract and all documents, information, data and reports related to
 the Petroleum Operations within the Contract Area shall be kept confidential.
       22.2 Without the written consent of the other Party, no Party to the
 Contract shall disclose, during such confidentiality periods, the Contract,
 documents, information, data and reports referred to in Article 22.1 herein or
 any other information regarded by JMC as confidential, to any Third Party except
 the Third Parties specified in Article 22.5 herein and to any Affiliate not
 directly connected with the implementation of the Contract, and no Party to the
 Contract shall otherwise transfer, donate, sell or publish them in any way
 within the confidentiality periods. However, if the Department or Unit decides
 to invite any Third Party to conduct cooperative exploration for and development
 of Petroleum in the sedimentary basin in which the Contract Area is located
 and/or other adjacent areas, CNPC may furnish the following original data and
 information or interpretation thereof with respect to the Contract Area to the
 relevant Third Parties:
       (a) original data and information and their interpretations held by CNPC
 for over two (2) years and which cover areas relinquished under Article 5
 hereof;
       (b) original data and information and their interpretations covered by any
 discovery at the end of the second exploration phase if the Contractor has an
 option under Article 6.4 (a) hereof, or at the end of the appraisal work if the
 Contractor has an option under Article 6.4 (b) hereof.
       CNPC shall require relevant Third Parties to undertake to keep
 confidential the aforesaid data, information and interpretations thereof
 furnished to them by CNPC.
       CNPC shall, in conformity with relevant provisions of laws and regulations
 of the People's Republic of China and requests of relevant government
 departments and units, provide them with all documents, information, data and
 reports as mentioned herein.
       22.3 During the term of the Contract and after the termination of the
 Contract, CNPC shall not disclose to any Third Party any patent, know-how or
 proprietary technology transferred to CNPC by the Contractor without the written
 consent of the Contractor except for any technology, the patent of which has
 expired and any proprietary and confidential technology which have entered the
 public domain.
       22.4 After the termination of the Contract or after any assignment of
 rights and/or obligations of the Contract under Article 23 hereof, the
 Contractor and any assignee shall, within the confidentiality periods, continue
 to be obligated to keep confidential documents, information, data and reports
 mentioned in Article 22.2 herein except for official documents and information
 published with the consent of the Parties.
       22.5 For the implementation of the Contract, CNPC and each company
 comprising the Contractor may, after review by JMC and CNPC, furnish the
 necessary documents,
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                                        63
                          Zitong Block Petroleum Contract
 <PAGE>
 information, data and reports to Third Parties and Affiliates related to the
 Petroleum Operations. The Third Parties and Affiliates include:
       22.5.1 Banks or other credit institutions from which financing is sought
 by any Party to the Contract for the implementation of the Contract;
       22.5.2 Third Parties and Affiliates which provide services for the
 Petroleum Operations, including Subcontractors and other service contractors;
 and
       22.5.3 An assignee or assignees to whom the rights and/or obligations
 under the Contract may be assigned.
       22.6 Necessary information, documents, data and reports may be furnished
 by the Parties in accordance with the laws of their home countries to the
 governments and stock exchanges, provided that the Parties report to JMC in
 advance.
       22.7 CNPC and each company comprising the Contractor when furnishing the
 documents, information, data and reports to Third Parties and Affiliates as
 mentioned in Article 22.5 herein shall require them to assume the
 confidentiality obligations as set forth herein, or shall bear full
 responsibility for any violation thereof.
 --------------------------------------------------------------------------------
                                        64
                          Zitong Block Petroleum Contract
 <PAGE>
                              ARTICLE 23   ASSIGNMENT
       23.1 The Contractor may assign part or all of its rights and/or
 obligations under the Contract to any of its Affiliate with the prior consent of
 CNPC and in accordance with the following provisions:
       (a) The Contractor shall submit to CNPC copies of a written agreement on
 the corresponding part of its rights and/or obligations to be assigned;
       (b) The Contractor shall guarantee in writing to CNPC the performance of
 the assigned obligations; and
       (c) No such assignment shall interfere with the performance of the
 Petroleum Operations or affect the organizational structure.
       23.2 The Contractor may assign rights and/or obligations under the
 Contract to any Third Party, provided that such assignment shall be agreed by
 CNPC in advance and approved by the Ministry of Foreign Trade and Economic
 Co-operation of the People's Republic of China. However, CNPC shall have the
 right of first refusal in respect of such assignment provided that the
 conditions offered by CNPC are comparable.
       23.3 CNPC may authorize its Affiliates to implement the Contract, but CNPC
 shall remain responsible for the performance of the Contract.
       23.4 CNPC shall, immediately after the Date of Commencement of
 Implementation of the Contract, transfer its rights and obligations under the
 Contract to PetroChina Company Limited except for the following rights and
 obligations which shall remain vested in CNPC:
       23.4.1 amendments to important Articles in this Contract which require to
 be approved by the Ministry of Foreign Trade and Economic Cooperation shall
 first be reported to CNPC and submitted by CNPC to such Ministry for approval;
       23.4.2 the Overall Development Program shall be submitted by CNPC to the
 Department or Unit for approval;
       23.4.3 CNPC shall undertake the co-ordination of Sino-foreign co-operative
 cross-boundary oil and gas fields (excluding boundary-crossing oil and gas
 fields under the jurisdiction of PetroChina Company Limited);
       23.4.4 from the Date of Commencement of the Implementation of the
 Contract, title to data obtained in the course of performing the Petroleum
 Operations will vest in CNPC, which will determine the confidentiality periods
 for such data;
       23.4.5 CNPC shall undertake the confirmation of relinquished acreage; and
       23.4.6 title to share oil and/or gas of the Chinese Side shall vest in
 CNPC.
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                                        65
                          Zitong Block Petroleum Contract
 <PAGE>
       Such transfer shall not require the prior consent of the Contractor. CNPC
 shall provide a copy of the written agreement between CNPC and PetroChina
 relating to such transfer to the Contractor. CNPC shall guarantee to the
 Contractor the performance of the assigned obligations, and such assignment
 shall not interfere with the conduct of the Petroleum Operations.
       23.5 CNPC may assign part of its rights and/or obligations hereunder to a
 Chinese Government controlled Third Party, provided that prior written consent
 of the Government of the People's Republic of China shall be obtained. CNPC
 shall guarantee the performance of the assigned obligations and that such
 assignment shall not interfere with the performance of Petroleum Operations.
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                                        66
                          Zitong Block Petroleum Contract
 <PAGE>
                 ARTICLE 24   ENVIRONMENTAL PROTECTION AND SAFETY
       24.1 In the performance of the Petroleum Operations, the Operator shall be
 subject to the laws, decrees, regulations and standards on environmental
 protection and safety promulgated by the Chinese Government and carry out the
 operations according to international practice. The Operator shall make its best
 efforts to protect farmland, aquatic resources, forest reserves and other
 natural resources, and prevent pollution and damage to the atmosphere, rivers,
 lakes, ground water, harbors, other land environments and ecological environment
 and secure the safety and health of the operating personnel. The Operator shall
 use all reasonable endeavors to eliminate promptly any pollution occurring in
 the performance of the Petroleum Operations and minimize its consequences.
 Economic losses caused by any pollution shall be charged to the Joint Account,
 unless otherwise provided in Article 8.4 hereof.
       24.2 When competent authorities under the Chinese Government assign a
 person to inspect environmental protection and safety within the scope of the
 Petroleum Operations according to the laws, decrees, rules and regulations, the
 Operator shall provide all necessary facilities and assistance to enable the
 inspectors to carry out such inspection smoothly.
       24.3 In the performance of the Petroleum Operations in any fixed fishing
 net casting area and/or aquatic breeding area, the Operator shall make prior
 contact with the relevant authorities of the Chinese Government.
       24.4 The Operator shall, after the completion of various Petroleum
 Operations, level or restore or reclaim the land of the operating sites in
 accordance with the relevant local rules and regulations.
       24.5 Any damages and liabilities caused by any pollution associated with
 the existing wells being owned and/or operated by CNPC within the Contract Area
 shall be borne by CNPC. Once the Contractor takes over or utilizes the said
 wells, any liabilities caused by these wells shall be charged to the Joint
 Account, unless otherwise provided in Article 8.4 hereof.
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                                        67
                          Zitong Block Petroleum Contract
 <PAGE>
                            ARTICLE 25   FORCE MAJEURE
       25.1 No Party to the Contract shall be considered in default of the
 performance of any of its obligations hereunder, if any failure to perform or
 any delay in performing its obligations is in conformity with all the events
 described as follows:
       The performance of any obligations hereunder is prevented, hindered or
 delayed because of Force Majeure, namely any event or combination of events
 which could not be foreseen and conquered and/or which is beyond the control of
 such Party;
       The said events due to Force Majeure is the direct cause of preventing,
 hindering or delaying of such Party's performance of its obligations hereunder;
 and
       When any such event due to Force Majeure has occurred, such Party has
 taken all reasonable actions to overcome any cause that prevents, hinders or
 delays performance of its obligations and shall in so far as is practicable
 continue to perform its obligations hereunder.
       25.2 Notice of any event of Force Majeure and the conclusion thereof shall
 forthwith be given to the other Party by the Party claiming force majeure.
       25.3 In the event of Force Majeure, the Parties shall immediately consult
 in order to find an equitable solution thereto and shall use all reasonable
 endeavours to minimize the consequences of such Force Majeure.
       25.4 If the Petroleum Operations in the Contract Area are partially or
 entirely suspended as a result of the Force Majeure referred to in Article 25.1
 herein, the period of the Petroleum Operations may be extended by a period not
 exceeding the corresponding period of such suspension. Within fifteen (15) days
 following the end of each Calendar Year, the Operator shall report to JMC in
 writing on the suspension of the Petroleum Operations caused by Force Majeure,
 if any, during the preceding Calendar Year.
       25.5 The provisions of this Article 25 shall not apply in the case of
 default in the making of any payments of money.
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                                        68
                          Zitong Block Petroleum Contract
 <PAGE>
                     ARTICLE 26   CONSULTATION AND ARBITRATION
       26.1 The Parties shall make their best efforts to settle amicably through
 consultation any dispute arising in connection with the performance or
 interpretation of any provision hereof.
       26.2 Any dispute mentioned in Article 26.1 herein that has not been
 settled through such consultation within ninety (90) days after the dispute
 arises may be referred to arbitration at the request of and by either Party to
 the Contract. The arbitration shall be conducted in accordance with the
 following provisions:
       26.2.1 If agreed upon in writing by the Parties, such dispute shall be
 referred to arbitration conducted by the China International Economic and Trade
 Arbitration Commission in accordance with the arbitration proceeding rules
 thereof.
       26.2.2 If the Parties fail to reach an agreement on the arbitration
 arrangement mentioned in Article 26.2.1 herein, the Parties shall establish an
 ad hoc arbitration tribunal to conduct arbitration in accordance with the
 following provisions:
       26.2.2.1 The ad hoc arbitration tribunal shall consist of three (3)
 arbitrators. The Parties shall each appoint an arbitrator and the two
 arbitrators so appointed shall designate a third arbitrator. If one of the
 Parties does not appoint its arbitrator within sixty (60) days after the first
 appointment, or if the two arbitrators once appointed fail to appoint the third
 within sixty (60) days after the appointment of the second arbitrator, the
 relevant appointment shall be made by the Arbitration Institute of the Stockholm
 Chamber of Commerce, Sweden.
       26.2.2.2 The third arbitrator shall be a citizen of a country which has
 formal diplomatic relations with both the People's Republic of China and the
 home country of any of companies comprising the Contractor, and shall not have
 any economic interests or relationship with the Parties.
       26.2.2.3 The place of arbitration shall be determined by the Parties
 through consultations or, failing the agreement of the Parties within sixty (60)
 days after the appointment of the third arbitrator, by the majority of
 arbitrators of the ad hoc arbitration tribunal.
       26.2.2.4 The ad hoc arbitration tribunal shall conduct the arbitration in
 accordance with the arbitration rules of the United Nations Commission on
 International Trade Law ("UNCITRAL") of 1976. However, if the above-mentioned
 arbitration rules are in conflict with the provisions of this Article 26,
 including the provisions concerning appointment of arbitrators, the provisions
 of this Article 26 shall prevail.
       26.2.2.5 The applicable law of the arbitration shall be the laws of the
 People's Republic of China.
       26.3 Both the Chinese and English languages shall be official languages
 used in the arbitral proceedings. All hearing materials, statements of claim or
 defense, awards and the reasons supporting them shall be written in both Chinese
 and English.
       26.4 Any award of the arbitration tribunal shall be final and binding upon
 the Parties.
 --------------------------------------------------------------------------------
                                        69
                          Zitong Block Petroleum Contract
 <PAGE>
       26.5 The right to arbitrate disputes under the Contract shall survive the
 termination of the Contract.
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                                        70
                          Zitong Block Petroleum Contract
 <PAGE>
                        ARTICLE 27   APPOINTMENT OF EXPERT
       27.1 Pursuant to the provision of Article 11.3 hereof, the Parties shall
 appoint an expert through consultation, who shall be a person without any
 economic interests or relationship with the Parties and with the professional
 knowledge for the determination of the matter in question. If one Party refuses
 to appoint the expert or the Parties fail to reach agreement on the appointment
 of the expert within thirty (30) days, the expert shall be appointed by the
 Arbitration Institute of the Stockholm Chamber of Commerce, Sweden.
       27.2 The Parties shall furnish the expert with all written and oral
 information which he may reasonable require for his determination.
       27.3 The cost for such expert shall be borne by the Parties in proportion
 to their respective participating interests in the Contract.
       27.4 The decision of the expert, except for fraud or manifest error, shall
 be final and binding upon the Parties.
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                                        71
                          Zitong Block Petroleum Contract
 <PAGE>
       ARTICLE 28   EFFECTIVENESS AND TERMINATION OF THE CONTRACT
       28.1 After it is signed, the Contract shall be approved by the Ministry of
 Foreign Trade and Economic Co-operation of the People's Republic of China. The
 date of such approval shall be the effective date of the Contract. However, the
 Contractor's obligations shall begin on the Date of Commencement of the
 Implementation of the Contract, as defined in Article 1, herein above. CNPC
 shall notify the Contractor of the said approval in writing as soon as possible.
       28.2 All annexes to the Contract shall be regarded as integral parts of
 the Contract. If there is any inconsistency between the provisions of the
 annexes and the main body of the Contract, the main body of the Contract shall
 prevail. All references to the Contract hereof refer to the main body of the
 Contract.
       28.3 If in the course of implementation of the Contract, the Parties
 decide through consultation to make amendment or supplement to any part of the
 Contract, a written agreement signed by the authorized representatives of the
 Parties shall be required. Such written agreement shall be subject to the
 approval of the Ministry of Foreign Trade and Economic Co-operation of the
 People's Republic of China should there be any significant modifications hereof.
 Such agreement shall be regarded as an integral part of the Contract.
       28.4 The Contract shall terminate under any of the following
 circumstances:
       28.4.1 exercise of the Contractor's selection to terminate the Contract
 under Article 6.4(c) hereof; or
       28.4.2 failure to discover any commercial oil or gas reservoir within the
 Contract Area by the expiration of the exploration period or the extended
 exploration period granted under Article 4.3 hereof; or
       28.4.3 If there is only one (1) commercial Oil Field and/or Gas Field in
 production in the Contract Area, on termination of the production period of such
 Oil Field and/or Gas Field; or
       28.4.4 If there are two (2) or more commercial Oil Fields and/or Gas
 Fields in production in the Contract Area, on termination of the production
 period of the Oil Field and/or Gas Field with the latest termination date; or
       28.4.5 At the end of the last day of the thirtieth (30th) Contract Year
 from the Date of Commencement of the Implementation of the Contract, unless the
 production period is extended by the approval of the Department or Unit under
 Article 4.5 hereof or unless otherwise stipulated in Articles 4.6.1 or 25.4
 hereof.
       28.5 Before the expiration of the first phase of the exploration period as
 specified in Article 4.2 hereof, the Contractor shall not propose termination of
 the Contract unless the Contractor has fulfilled the minimum exploration work
 commitment for the first phase of the exploration period ahead of time.
       28.6 If either Party to the Contract commits a material breach of the
 Contract, the other Party to the Contract shall have the right to demand that
 such breach be remedied within a
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                                        72
                          Zitong Block Petroleum Contract
 <PAGE>
 reasonably specified period of time. If such breach is not remedied within such
 period of time, the complaining Party shall have the right to terminate the
 Contract by giving ninety (90) days' written notice to the defaulting Party.
 However, such material breach of the Contract and unremedied material breach
 shall have been judged by a final award of arbitration in accordance with
 Article 26 hereof.
       28.7 Unless otherwise agreed upon by the Parties CNPC has the right to
 unilaterally discharge the Contract in the event the Contractor fails to:
       (1) pay to CNPC the signature fee within thirty (30) days from the Date of
 Commencement of Implementation of the Contract pursuant to Article 31.6 hereof;
 or
       (2) begin the Exploration Operations within due time as specified in
 Article 6.1; or
       (3) submit Overall Development Program within ninety (90) days after the
 exploration period; or
       (4) begin the Development Operations within ninety (90) days after the
 approval of the Overall Development Program according to Article 11.4 hereof.
       28.8 The Parties shall enter into a formal written termination agreement
 upon the termination of the Contract except under the situation of unilateral
 discharge as provided in Article 28.7 hereof.
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                                        73
                          Zitong Block Petroleum Contract
 <PAGE>
                          ARTICLE 29   THE APPLICABLE LAW
       29.1 The validity, interpretation and implementation of the Contract shall
 be governed by the laws of the People's Republic of China. Failing the relevant
 provisions of the laws of the People's Republic of China for the interpretation
 or implementation of the Contract, the principles of the applicable laws widely
 used in petroleum resource countries acceptable to the Parties shall be
 applicable.
       29.2 If a material change occurs to the Contractor's economic benefits
 after the effective date of the Contract due to the promulgation of new laws,
 decrees, rules and regulations or any amendment to the applicable laws, decrees,
 rules and regulations made by the Government of the People's Republic of China,
 the Parties shall consult promptly and make necessary revisions and adjustments
 to the relevant provisions of the Contract in order to maintain the Contractor's
 reasonable economic benefits hereunder.
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                                        74
                          Zitong Block Petroleum Contract
 <PAGE>
              ARTICLE 30   LANGUAGE OF CONTRACT AND WORKING LANGUAGE
       30.1 The text of the Contract, annexes and supplementary documents
 attached hereto shall be written in both Chinese and English, and both versions
 shall have equal force and effect. If the Parties have discrepancies on the
 words and sentences contained in both Chinese and English language texts, the
 real meaning of these words shall be interpreted according to the aim of the
 Contract.
       30.2 The Parties agree that both Chinese and English shall be used as
 working languages. After the effective date of the Contract, technical documents
 and information concerning the Petroleum Operations hereunder shall, in general,
 be written in English except for technical documents and information available
 previously and received from Third Parties.
       Unless otherwise agreed by CNPC, documents and information in respect of
 administration shall be written in both Chinese and English. Forms for
 production and other reports and records shall be printed with headings in both
 Chinese and English and may be filled out in either Chinese or English.
 --------------------------------------------------------------------------------
                                        75
                          Zitong Block Petroleum Contract
 <PAGE>
                            ARTICLE 31   MISCELLANEOUS
       31.1 All notices and documents required hereunder shall be deemed to have
 been properly given and delivered to either Party to the Contract only when
 received.
       31.2 Notices and documents shall be delivered by hand or sent by mail,
 registered airmail, facsimile or cable to the address hereunder specified. The
 notice or document shall be deemed to be received at the date of receipt in the
 case of directly delivery; the mails, registered airmails and cables shall be
 deemed to be received on the seventh (7th) working day after they are given to
 the official delivery agencies in the case of such agencies are involved; and
 the facsimiles shall be deemed to be received on the second (2nd) working day
 after dispatch if evidenced by a transmission report.
       Address of CNPC:
       8th Floor, World Tower, No.16 An De Lu,
       Dongcheng District,
       Beijing 100011, P.R.China
       Telephone: 86-10-8488.6790
       Fax:       86-10-8488.6828
       To the attention of:   Mr. Shou Xuancheng
       Address of the Contractor:
       Unit 1928, China World Tower 1,
       Jian Guo Men Wai Avenue, Beijing, 100004, P.R.China
       Telephone: 86-10-6505.1516
       Fax:       86-10-6505.5259
       To the attention of:   Mr. Patrick Chua
       31.3 Either Party to the Contract may change its address or representative
 by a written notice to the other Party to the Contract.
       31.4 Each company comprising the Contractor shall provide CNPC with a
 written performance guarantee issued by its parent corporation, a bank or other
 financial institutions, and such performance guarantee shall meet the
 requirements of CNPC.
       31.5 Companies comprising the Contractor have the following percentages of
 participating interests as of the effective date of the Contract.
       (I) Pan-China Resources Ltd.:         One Hundred percent (100%);
       Subject to Article 31.7 herein, the rights and obligations of each company
 comprising the Contractor hereunder may, as between themselves, be varied by the
 operating agreement between such companies and the Contractor shall advise CNPC
 in writing of any expected
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                                        76
                          Zitong Block Petroleum Contract
 <PAGE>
 variation and thereafter, of the actual variation.
       If such variation leads to the transfer of the operatorship, or the
 companies comprising the Contractor have made a decision to change the Operator,
 the Operator referred to in Article 8.1 hereof may be replaced after obtaining a
 written consent from CNPC.
       31.6 The Contractor shall pay CNPC a lump-sum signature fee of Seven
 Hundred Thousand US Dollars (U.S.$700,000) in two installments: (a) Five hundred
 thousand U.S. Dollars (U.S.$ 500,000) within thirty (30) days from the Date of
 Commencement of the Implementation of the Contract; (b) Two hundred thousand
 U.S. Dollars (U.S.$ 200,000) within thirty (30) days from the date on which the
 Contractor elects to enter into the second phase of the exploration period or
 the date on which the Overall Development Program is approved by the Department
 or Unit, whichever is earlier. Such signature fee shall, in no case, be charged
 to the Joint Account, nor be deemed recoverable costs.
       31.7 Companies comprising the Contractor agree to undertake the
 obligations of the Contractor under the Contract jointly and severally.
       In witness whereof, THIS CONTRACT is signed in Beijing by the authorized
 representatives of the Parties hereto on the first above-mentioned date.
       CHINA NATIONAL PETROLEUM                     PAN-CHINA RESOURCES LTD.
       CORPORATION (CNPC)
       By: _____________________                     By: _______________________
           Shou Xuancheng                                Patrick Chua
           President                                     Co-Chairman
           PetroChina International Ltd.                 Pan-China Resources Ltd.
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                                        77
                          Zitong Block Petroleum Contract
 <PAGE>
                                      ANNEX I
   GEOGRAPHIC LOCATION AND CO-ORDINATES OF THE CONNECTING POINTS OF THE BOUNDARY
      LINES OF THE CONTRACT AREA / MAP OF ZITONG BLOCKS SHOWING CORNER POINTS
 Geographic Location and Co-ordinates of the Connecting Points of the Boundary
 Lines
 Zitongdong Block
 <TABLE>
 <CAPTION>
 Corner point            East Longitude                North Latitude
                  degree    minute   seconds      degree   minute   seconds
 --------------------------------------------------------------------------------
 <S>                <C>       <C>       <C>         <C>      
 <C>       <C>
      B             105       20        0           31       55        0
 --------------------------------------------------------------------------------
      C             105       30       30           31       55        0
 --------------------------------------------------------------------------------
      D             105       30       30           31       20        0
 --------------------------------------------------------------------------------
      E             105       11        0           31       20        0
 --------------------------------------------------------------------------------
      F             105       11        0           31       26        0
 --------------------------------------------------------------------------------
      G             105       13       30           31       26        0
 --------------------------------------------------------------------------------
      H             105       13       30           31       30       55
 --------------------------------------------------------------------------------
      I             105       11       20           31       30       55
 --------------------------------------------------------------------------------
      J             105       11       20           31       50        0
 --------------------------------------------------------------------------------
      A             105       20        0           31       50        0
 --------------------------------------------------------------------------------
 </TABLE>
 Zitongxi Block
 <TABLE>
 <CAPTION>
 Corner point            East Longitude                North Latitude
                  degree    minute   seconds      degree   minute   seconds
 --------------------------------------------------------------------------------
 <S>                <C>       <C>       <C>         <C>      
 <C>       <C>
 K                  105        0         0          31       50         0
 --------------------------------------------------------------------------------
 J                  105       11        20          31       50         0
 --------------------------------------------------------------------------------
 I                  105       11        20          31       30        55
 --------------------------------------------------------------------------------
 H                  105       13        30          31       30        55
 --------------------------------------------------------------------------------
 G                  105       13        30          31       26         0
 --------------------------------------------------------------------------------
 F                  105       11         0          31       26         0
 --------------------------------------------------------------------------------
 E                  105       11         0          31       20         0
 --------------------------------------------------------------------------------
 R                  104       52        15          31       20         0
 --------------------------------------------------------------------------------
 Q                  104       52        15          31       25        10
 --------------------------------------------------------------------------------
 P                  104       48        10          31       25        20
 --------------------------------------------------------------------------------
 O                  104       48         0          31       40        20
 --------------------------------------------------------------------------------
 N                  104       50        50          31       40        10
 --------------------------------------------------------------------------------
 M                  104       50        50          31       45        45
 --------------------------------------------------------------------------------
 L                  105        0         0          31       45        45
 --------------------------------------------------------------------------------
 </TABLE>
 --------------------------------------------------------------------------------
                                        78
                          Zitong Block Petroleum Contract
 <PAGE>
                    [Map of Zitong Block Showing Corner Points]
 --------------------------------------------------------------------------------
                                        79
                          Zitong Block Petroleum Contract
 <PAGE>
                          ANNEX II   ACCOUNTING PROCEDURE
 Table of Contents
 Article 1    General Provisions
 Article 2    Definitions
 Article 3    Cash Calls
 Article 4    Accounting and Management of Material
 Article 5    Expense Accounting
 Article 6    Recovery of Costs and Deemed Interest
 Article 7    Accounting Reports
 Article 8    Audit
 Article 9    Transfer Procedure of the Joint Account
 --------------------------------------------------------------------------------
                                        80
                          Zitong Block Petroleum Contract
 <PAGE>
                          ARTICLE 1   GENERAL PROVISIONS
       1.1 This Accounting Procedure is an integral part of the Contract.
       The definitions set forth in Article 1 of the Contract are equally
 applicable to this Accounting Procedure. The definitions and provisions in this
 Accounting Procedure have the same force and effect as those in the Contract. If
 the provisions in this Accounting Procedure are in conflict with those in the
 Contract, the provisions in the Contract shall prevail.
       1.2 Purpose: The purpose of this Accounting Procedure is to establish
 equitable control methods for determining charges and credits applicable to the
 Petroleum Operations according to the relevant provisions of the Contract,
 including guidelines for accounting settlements in respect of managing funds and
 materials, financing, Accounting Records, and for compiling accounting
 statements.
       The Operator shall neither gain nor lose in relation to the other Parties
 by means of the fact that it acts as the Operator.
       1.3 Accounting methods: The double-entry method of accounting shall be
 used in this Accounting Procedure.
       1.4 Working language: both Chinese and English shall be used as the
 working languages for the Accounting Records and analyses of financial
 conditions in respect of the Joint Account.
       1.5 Currency for accounting: US dollars shall be the unit of currency for
 accounting in the Joint Account and shall be the currency for the investments
 and reimbursements under the Contract. In case currencies other than US dollars
 are used to carry out business activities, the relevant bank accounts and other
 current asset and current liability accounts shall be kept both in US dollars
 and in the currencies used.
       1.6 Currency translation: For the purpose of accounting currency
 translation entered into the Joint Account shall be made in accordance with
 following guidelines:
       The rate of exchange to be used for the conversion into U.S. dollars of
 cash calls received in Renminbi shall be the arithmetic average of buying and
 selling rates of exchange applicable to any individual or commercial entity
 quoted by Bank of China at 11:00 a.m. on the date of receipt of such cash in the
 Operator's bank account(s). If the relevant date is a non-business day of the
 Bank of China, the rate quoted on the previous business day by the Bank of China
 shall apply.
       All other transactions recorded in the Joint Account which are made in
 Renminbi shall be translated into and recorded in U.S. dollars at the rate of
 exchange as quoted on the last business day of the previous month, while those
 transactions which are made in currencies other than Renminbi and U.S. dollars
 shall be recorded in U.S. dollars at the actual cost in U.S. dollars of
 effecting the transaction.
       Neither CNPC nor the companies comprising the Contractor shall experience
 an exchange gain or loss, at the expense or benefit of the other Party.
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                                        81
                          Zitong Block Petroleum Contract
 <PAGE>
       The Operator shall make its best efforts to minimize any exchange loss.
       All gains or losses from currency conversion or translation referred to in
 this Accounting Procedure shall be recorded in the Joint Account.
       1.7 Foreign exchange business: Foreign exchange business related to the
 Petroleum Operations shall be made in accordance with "Regulations for Exchange
 Control of the People's Republic of China" and other provisions promulgated by
 the Chinese Government.
       1.8 Accounting Records and statements:
       1.8.1 All Accounting Records related to the Petroleum Operations shall be
 established and maintained by the Operator within the territory of the People's
 Republic of China.
       1.8.2 All vouchers, accounts, books and statements shall be prepared in
 accordance with the Petroleum Operations Accounting System established by CNPC
 and the Contractor through consultation pursuant to the Accounting Regulations
 of the People's Republic of China for Enterprises with Foreign Investment.
       1.8.3 Annual accounting statements and important accounting books,
 including asset records, cash or bank journals, general and subsidiary ledgers,
 balance sheets, and annual gross oil production allocation statements shall be
 maintained for the term of the Contract as per Article 4.7 of the Contract, or
 for any further period if required by the laws and regulations of the People's
 Republic of China. Other accounting vouchers and books shall be kept for fifteen
 (15) years. Quarterly and monthly statements shall be maintained for five (5)
 years.
       Upon the expiration of the custody period, a list shall be made of the
 accounting files to be disposed of. Disposal of the accounting files shall only
 be made after the approval of CNPC. The list of the accounting files disposed of
 shall be maintained with the annual accounting statements.
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                                        82
                          Zitong Block Petroleum Contract
 <PAGE>
                              ARTICLE 2   DEFINITIONS
       The terms used in this Accounting Procedure shall have the definitions
 ascribed to them as follows:
       2.1 "Accounting Records" means all accounting books, source documents,
 original vouchers, approval documents, analytical data, work papers and
 accounting statements maintained for the Petroleum Operations.
       2.2 "Accounting System" means the Petroleum Operations Accounting System
 prepared by CNPC and the Contractor through consultation pursuant to the
 Accounting Regulations of the People's Republic of China for Foreign Enterprises
 with Foreign Investment, specifying the accounting titles to be used by the
 Operator and instructions for implementation, forms and contents of various
 accounting statements and their preparation methods, including a material
 classification section, a definition of Controllable Material, standards for
 itemizing assets and the provisions for fixed asset accounting.
       2.3 "Material" means materials, tools, facilities, equipment and
 consumables procured, leased or otherwise acquired and held for the Petroleum
 Operations.
       2.4 "Joint Account" means accounts established by the Operator for the
 implementation of the Contract to record all debits and credits related to the
 Petroleum Operations.
       2.5 "Controllable Material" means the Material referred to in the
 Accounting System described in Article 2.2 of this Accounting Procedure.
       2.6 "LIBOR" means the seven-day term London Inter-Bank Offered Rate of
 U.S. dollars for similar amounts to the sums in question, quoted by The Hong
 Kong and Shanghai Banking Corporation Limited in London at 11:00 a.m. on the
 first business day of the relevant period.
       2.7 "Investing Party" means any of the Parties that is contributing the
 funds for the Petroleum Operations in accordance with their participating
 interests determined pursuant to the relevant provisions of the Contract.
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                              ARTICLE 3   CASH CALLS
       3.1 Except as otherwise provided in the Contract, the Contractor shall
 provide all the exploration costs for the Exploration Operations according to
 the provision of Article 12.1.1 of the Contract; and all the Investing Parties
 shall provide the development costs for the Development Operations in proportion
 to their respective participating interests as provided in Article 12.1.2 of the
 Contract. In accordance with each approved annual budget, the Operator shall
 issue monthly cash call notices to each Investing Party to provide the Operator
 with funds to cover the planned expenditure of the next month. Whether or not
 the cash call notices for the exploration costs are to be issued shall be at the
 option of the Operator.
       3.2 Development Operations cash call and default:
       3.2.1 According to the needs of the Petroleum Operations, the Operator
 shall regularly issue monthly cash call notices within the amount of approved
 annual budget to request each Investing Party to respectively make advances as
 specified by the Operator. The Operator shall, before twenty (20) days prior to
 the commencement of each month, issue cash call notices for the development
 costs and each Investing Party shall provide its percentage share of funds
 according to the requirement and within the time limit specified in the cash
 call notice. However, the payment due to date specified in the cash call notices
 shall not be earlier than the first working day of the month for which cash is
 called. Each Investing Party shall transfer its percentage share of funds to the
 Operator's bank account(s) established by the Operator particularly for
 Petroleum Operations. Such bank account(s) will in all cases be interest bearing
 account(s).
       Any excessive advances made by each Investing Party for any month shall be
 adjusted in the next cash call.
       In case that the Operator, owing to the needs of the Development
 Operations, has to incur expenditures which are unforeseen in the cash call for
 any month, written notices shall be issued to all the Investing Parties who
 shall provide their own shares for additional amount within ten (10) days
 following the receipt of the written notice.
       3.2.2 Interest shall be paid by CNPC or the companies comprising the
 Contractor failing to pay its share of funds on the due date specified in the
 cash call at LIBOR on the due date plus five percent (5%) of on the delinquency
 of less than one (1) month and thereafter at the average LIBOR rate at ruling
 throughout each subsequent month plus five percent (5%), such interest being
 compounded on a monthly basis throughout the period of the delinquency. The
 non-defaulting Party or Parties shall make up the delinquent portion on behalf
 of the defaulting Party or Parties. When the defaulting Party or Parties pay
 cash to meet both the delinquent portion and accrued interest thereon, the
 Operator shall reimburse the non-defaulting Party or Parties who made up the
 delinquent portion.
       All amount advanced by the non-defaulting Party or Parties plus accrued
 interest not reimbursed by the defaulting Party or Parties shall constitute a
 debt due from the defaulting Party or Parties to the non-defaulting Party or
 Parties who shall be entitled to all remedies at law and equity. The Operator,
 or any non-defaulting party if the operator is a defaulting party, on behalf of
 the non-defaulting Party or Parties is entitled to take and sell the defaulting
 Party's or Parties' share of the Annual Gross Production of Crude Oil and apply
 the proceeds
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                          Zitong Block Petroleum Contract
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 of the sale of such Crude Oil against all sums due and payable by the defaulting
 Party or Parties including accrued interest. Any excess funds remaining from
 such proceeds after deduction of all amounts due, including interest and the
 costs, charges and expenses incurred by the Operator, or any non-defaulting
 Party if the Operator is a defaulting Party, in connection with such sale, shall
 be paid over to the defaulting Party or Parties. Any deficiency remaining due,
 after deducting the proceeds of any such sale shall remain an obligation of the
 defaulting Party or Parties and may be collected as any other debt.
       3.3 Each monthly cash call notice shall clearly indicate the following
 information:
       3.3.1 Annual development costs to be shared by each Investing Party as
 shown in the approved annual budget.
       3.3.2 Amount of funds advanced by each Investing Party at the end of the
 month prior to the month in which the call notice is prepared and the actual
 expenditures recorded and actual balance (i.e. funds unused) in the Joint
 Account, accompanied by the bank statements related to the Joint Account for the
 previous month.
       3.3.3 Amount of funds to be called from each Investing Party for the month
 in which the funds will be used and the estimated amounts of funds to be called
 in the following two (2) months.
       3.3.4 The date when funds are to be provided, the amount of funds,
 currency, account number, name of the account, the recipient bank and its
 address.
       3.4 On the Date of Commencement of Commercial Production of an Oil Field
 and/or Gas Field, any development investment for the Oil Field and/or Gas Field
 advanced by the Investing Parties which has not been expended and will not be
 expended shall be returned to each of the Investing Parties in proportion to its
 share.
       3.5 In accordance with Article 12.1.3 of the Contract, the cash for the
 Production Operations undertaken by the Parties jointly and approved by JMC
 shall be provided by all the Investing Parties to the Contract in proportion to
 their respective participating interests in the development costs and shall bear
 no Deemed Interest. Based on the needs of the Production Operations, the
 Operator may make timely adjustment of the amount of cash to be provided by all
 the Investing Parties to the Contract. The Operator shall issue quarterly cash
 call notices to call for cash for the Production Operations. In proportion to
 its share, each Investing Party shall respectively provide advances on a monthly
 basis in accordance with requirements and within the time limit specified in the
 cash call notice of the current month.
       In case that the Operator, owing to the needs of the Petroleum Operations,
 has to incur expenditures which are unforeseen in the cash call for any month,
 written notices with explanation shall be issued to all the Investing Parties
 who shall finance their own shares for additional amount within ten (10) days
 following the receipt of such written notices.
       3.6 According to the requirement of the Petroleum Operations, the Operator
 shall indicate in any cash call notice the U.S. dollar equivalent of the total
 cash called. The Operator shall also specify the amounts of Renminbi and U.S.
 dollars required as estimated to make payment. CNPC shall provide the advance of
 its own share either in Renminbi or in
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                          Zitong Block Petroleum Contract
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 Renminbi and U.S. dollars with respect to the amounts called for by the
 Operator, but CNPC's funding in Renminbi shall not exceed the total amount of
 Renminbi as indicated and called for by the Operator in any cash call notice.
 The Contractor shall provide the advance of its own share in US Dollars.
       3.7 Provisions for recording the sources of funds:
       3.7.1 Funds for exploration costs, development costs and operating costs,
 when received, pursuant to each cash call shall be credited against the relevant
 accounts of the Investing Parties in the Joint Account.
       3.7.2 In case either Party to the Contract decides to develop an Oil Field
 and/or Gas Field for its sole account pursuant to Article 11.6 and/or Article
 18.1.2.2 of the Contract, or undertakes any other operation for its sole
 account, the funds required shall be financed and accounted for separately.
       3.7.3 The Contractor shall, within twenty (20) days after the date of
 submission to CNPC of a written notice expressing its decision to participate in
 the development of an Oil Field developed solely by CNPC, and/or the utilization
 of the excess associated Natural Gas of an Oil Field undertaken solely by CNPC,
 pay CNPC in cash the amounts stipulated in Articles 11.6.1 and/or 18.1.2.3 of
 the Contract.
       3.7.4 In accordance with Article 6.8 of the Contract, if the Contractor
 opts to terminate the Contract as provided in Article 6.4 (c) of the Contract or
 if the phase is the last exploration phase, the Contractor shall, within thirty
 (30) days from the date of its decision to terminate the Contract or thirty (30)
 days from the date of the expiration of the exploration period, pay CNPC in U.S.
 dollars the unfulfilled balance of the minimum exploration work commitment (or
 of the new commitment) for the exploration phase, converted into US Dollars. The
 detailed method by which the unfulfilled balance of the minimum exploration work
 commitment is converted into U.S. dollars is that the actual average unit cost
 of the last portion of a seismic line shot under the Contract or of the last
 well drilled, excluding the abnormal drilling costs such as those of the
 sidetrack, fishing, severe loss of mud circulation etc. (i.e. U.S. $ / kilometer
 of seismic line; U.S.$/meter of drilling footage), is multiplied by the
 unfulfilled amount of the minimum exploration work commitment. The formula for
 such calculation is as follows:
       I = Ac X Pu
       in which:
       I = converted cash amount of the unfulfilled balance of the minimum
 exploration work commitment;
       Ac = actual average unit cost of the last portion of a seismic line shot
 or of the last well drilled; and
       Pu = the unfulfilled amount of the minimum exploration work commitment
 (The unfulfilled amount of the seismic line shot is the difference between the
 kilometers specified in Article 6.2 of the Contract and actual kilometers shot.
 The unfulfilled footage of a unfulfilled wildcat is the designed total depth of
 the wildcat specified in accordance with
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                          Zitong Block Petroleum Contract
 <PAGE>
 Article 6.2 of the Contract).
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                 ARTICLE 4   ACCOUNTING AND MANAGEMENT OF MATERIAL
       4.1 Procurement of Material
       The procurement of Material shall be implemented in accordance with the
 procedure specified in Articles 15.1 and 7.6 of the Contract. In order to
 prevent overstocking of Material, the Operator shall use all reasonable efforts
 to ensure that the procurement of Material shall be made in accordance with the
 Material procurement plans and that the quality of Material conforms to
 specifications and prices are fair and reasonable. The Operator does not warrant
 the Material furnished beyond or back of, the supplier's or manufacturer's
 guarantee.
       4.2 Costs of procuring Material
       The costs of Material purchased shall be the invoice prices less discounts
 plus related transportation and other expenses, including expenses for freight
 to destination, insurance premiums commensurate with the Material covered, fees
 of forwarding agents, duties, fees, storage fees and handling expenses from
 shipside to and within any water or land terminal warehouse or yard, and any
 other reasonable expenses actually paid and expenses of inland transportation.
       4.3 The following provisions and procedures of Article 15.1 and Article
 7.6 of the Contract and the following provisions shall be applied for pricing
 Material furnished from the stocks of the Parties and/or their Affiliates for
 use in the Petroleum Operations:
       (1) New Material:
       New Material shall be priced on the basis of current market value plus
 expenses in moving such Material directly to the job-site where Material is
 used.
       (2) Used Material:
       (A) Material that is in sound and serviceable condition and is suitable
 for reuse without reconditioning shall be priced by the Parties, and the ceiling
 price shall not exceed seventy-five percent (75%) of the current market value of
 new Material.
       (B) Material which, after being reconditioned, will be further serviceable
 for its original function shall be priced by the Parties, and the ceiling price
 shall not exceed fifty percent (50%) of the current value of new Material.
       (C) Used Material that cannot be classified as (A) or (B) above shall be
 priced by the Parties through discussions at a value commensurate with its use.
       (D) If the Operator wishes to use a method other than the above for
 pricing used Material, such other method shall be agreed upon in advance by the
 Parties through consultations.
       4.4 Price determination and leasing expense calculation method for
 properties purchased or leased from other contract areas:
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                          Zitong Block Petroleum Contract
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       The Operator may lease equipment and facilities and purchase Material and
 fuel from other contract areas or other petroleum operations areas within the
 People's Republic of China. The Operator shall charge the leasing expenses or
 purchase cost as agreed upon by the Operator and its suppliers. Such leasing
 expenses or purchase prices shall not exceed those currently prevailing in
 similar contract areas.
       4.5 For certain Material which is in short supply in the world market and
 difficult to procure at published market prices and the lack of which will
 hinder normal operations, the Operator may, after the approval of JMC, purchase
 such Material urgently needed by the Petroleum Operations and charge actual
 purchase costs to the Joint Account.
       4.6 Disposal of Material:
       The Operator shall not dispose or sell Material with book value exceeding
 Ten Thousand ($10,000) U.S. dollars without the prior consent of the Parties.
 The Operator shall use all reasonable endeavors to minimize losses in the
 disposal of or sales of such Material.
       Sales of properties to Third Parties or Affiliates shall be recorded in
 accordance with actual sales income. No guaranty or warranty for Material sold
 or disposed of under this Article shall be given by the Operator to any
 purchaser.
       4.7 Accounting for Material:
       The costs of Material which is procured by the Operator and is directly
 used at the job-site shall be charged to the respective accounts of exploration
 costs, development costs or operating costs at actual purchase prices (as
 defined in Article 4.2 herein) and on the basis of the use of Material. Should
 such Material subsequently be used for other purpose, the relevant charges shall
 be transferred from the original cost accounts to the appropriate cost accounts.
       Material for general use which is first stored in warehouses shall be
 subject to inventory control procedures. The quantities, unit prices and total
 value shall be recorded for Material in inventory using perpetual inventory
 methods. Material in stock shall be priced at purchase costs and the Operator,
 upon the commencement of or during the Contract period, has the freedom to
 choose one of the following pricing methods such as FIFO, weighted average
 method and moving average method etc. for Material to be transferred out of the
 stock. Accounts for inventory Material shall be regarded as exploration costs,
 development costs or operating costs and shall be recovered in accordance with
 Article 12.2 and Article 12.3 of the Contract.
       At the request of any non-Operator, the Operator shall furnish to the
 non-Operator a detailed statement of Controllable Material.
       The Operator shall conduct physical inventory of Material in warehouses
 prior to the annual final accounts or whenever depending upon the actual
 situation. The Operator shall give a written notice to JMC sixty (60) days
 before the date of proposed physical inventory in order to allow time for
 participation by the non-Operator and failure to participate by any non-Operator
 in the physical inventory shall be regarded as approval of the physical
 inventory conducted by the Operator.
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                          Zitong Block Petroleum Contract
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       If any gain or loss is found as a result of the physical inventory, the
 Operator shall compile a detailed statement of the gain or loss and attach to it
 an explanation for the gain or loss which shall be submitted to JMC for
 examination and approval.
       4.8 In accordance with Article 17.1 of the Contract, the Operator shall
 exercise strict control over the Fixed Assets of the Petroleum Operations and
 set up accounts and make record cards, and shall conduct physical inventory of
 the Fixed Assets at year-end or whenever depending upon the actual situation to
 make sure that the book records, card records and physical Fixed Assets are in
 conformity. In case that any damage and loss arises to the Fixed Assets, the
 Operator shall determine the reasons and submit them to JMC for examination and
 approval.
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                          ARTICLE 5   EXPENSE ACCOUNTING
       5.1 Rules for Accounting
       5.1.1 According to the provisions of Articles 12.1.1, 12.1.2 and 12.1.3 of
 the Contract, all development costs and operating costs of the Parties as well
 as the Contractor's exploration costs shall be recorded in the Joint Account
 separately.
       The Operator shall establish and maintain three separate accounts, namely:
       5.1.1.1 Exploration costs account;
       5.1.1.2 Development costs account; and
       5.1.1.3 Operating costs account;
       In which all charges and costs as classified pursuant to Articles 5.2 and
 5.3 of this Accounting Procedure shall be recorded.
       5.1.2 If either CNPC or the Contractor, in accordance with the Article
 11.6.1, 11.6.2 or Article 18 of the Contract, makes the decision to develop an
 Oil Field and/or Gas Field for its sole account or to undertake any other
 operation for its own account, the relevant costs shall be accounted for
 separately.
       5.1.3 All items related to the Petroleum Operations such as discounts,
 deductions, allowances, interest income, gains from various services,
 indemnities from insurance and other miscellaneous income received by the
 Operator, shall be credited to the relevant expense accounts.
       5.1.4 All direct services or research work (including personnel) provided
 by the superior organizations or Affiliates of CNPC or of the Contractor and by
 the Third Parties for the Petroleum Operations shall be subject to the advance
 work order procedures on the basis of the annual budget or of the approval by
 JMC and shall be charged to the Joint Account after verification of the relevant
 invoices.
       The work order procedure shall be established through consultations at JMC
 meetings by both Parties within three (3) months as of the Date of Commencement
 of the Implementation of the Contract. The rates charged for direct services or
 research work (including personnel cost) provided by the superior organizations
 or Affiliates of CNPC or of the Contractor shall be competitive when compared
 with the rates of similar services furnished by the Third Parties. The Operator,
 in accordance with Article 15 of the Contract, give priority to use direct
 services of research work (including personnel) provided by CNPC.
       5.2 Cost items:
       The following items shall be chargeable to the Joint Account at Operator's
 net cost.
       5.2.1 Subcontractor charges:
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                          Zitong Block Petroleum Contract
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       The charges paid to Subcontractors in accordance with contracts signed
 between the Operator and Subcontractors.
       5.2.2 Personnel expenses:
       The contents and control of personnel expenses including but not limited
 to reimbursable individual income taxes, provided that Contractor will supply
 supporting information for such taxes, shall be as stipulated in Article 19.3 of
 the Contract.
       5.2.3 Travel and living expenses:
       Travel and living expenses incurred according to Article 19 of the
 Contract for the personnel involved in the Petroleum Operations.
       5.2.4 Material expenses:
       Expenses paid in accordance with Article 4 of this Accounting Procedure to
 purchase Material for use in the Petroleum Operations.
       5.2.5 Relocation and transportation expenses:
       Relocation and transportation expenses for the personnel involved in the
 Petroleum Operations to be relocated into or out of the People's Republic of
 China and transferred from job-site to job-site within the People's Republic of
 China.
       5.2.6 Maintenance, repair and leasing expenses:
       Expenses for maintenance, repair or replacement of the properties used in
 the Petroleum Operations and the leasing expenses paid for leased properties and
 equipment.
       5.2.7 Insurance premiums:
       Necessary net payment made for the insurance for the Petroleum Operations
 and related costs and expenses, including deductibles paid in the event of loss
 pursuant to Article 21.4 of the Contract.
       5.2.8 Legal expenses:
       In order to protect the interests of the Parties, all costs or expenses
 paid for attorney's fees, litigation or investigation, including expenses in
 securing evidence, mediation and settlements. The expenses for handling legal
 matters incurred for the interest of any Party to the Contract shall be borne
 solely by such Party.
       5.2.9 Taxes:
       All taxes paid according to the tax laws of the People's Republic of
 China, except for the income taxes, Value Added Tax and royalty to be paid by
 the companies comprising the Contractor or CNPC and individual income taxes and
 other fees to be paid by the employees.
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       5.2.10 Energy expenses:
       All costs in respect of fuel, electricity, heat, water or other energy
 used and consumed for the Petroleum Operations.
       The costs of Crude Oil and/or Natural Gas produced and used in any Oil
 Field and/or Gas Field (provided the Parties have the same interest in such Oil
 Field and/or Gas Field) within the Contract Area by the Operator for the
 performance of the Development Operations and Production Operations or for well
 stimulation or for maintaining the reservoir pressure shall not be charged.
 However, the costs of transporting such Crude Oil and/or Natural Gas to their
 points of use shall be charged under this item.
       5.2.11 Field office facility charges:
       The costs and expenses of establishing, maintaining and operating any
 offices, supply bases camps and housing facilities necessary for the performance
 of job-site operations, including a share of the costs of any office used by
 staff directing such operations (calculated by apportioning office costs and
 expenses on the basis of space occupied by such staff).
       5.2.12 Communication charges:
       The costs of using, acquiring, leasing, installing, operating, repairing
 and maintaining such communication systems, including radio and microwave
 facilities between the Contract Area and the base facilities.
       5.2.13 Ecological and environmental protection charges:
       The charges for any measures undertaken for the Petroleum Operations
 within the Contract Area as required by relevant statutory regulations
 formulated by the authorities concerned or pursuant to the programs agreed by
 the Parties.
       5.2.14 Service charges
       5.2.14.1 Technical service charges:
       The charges paid for services such as rock specimen analysis, oil quality
 tests, geological evaluation, data processing, design and engineering, well site
 geology, drilling supervision, special research programs and other technical
 services.
       5.2.14.2 General service charges:
       Professional consultant charges incurred for the common interests of both
 Parties and charges for other services to obtain original data needed for
 Petroleum Operations from outside sources, except legal service.
       5.2.14.3 CNPC's assistance charges:
       (A) The charges for the assistance provided by CNPC for the Contractor to
 carry out the Petroleum Operations in accordance with Article 9 of the Contract.
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                          Zitong Block Petroleum Contract
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       (B) For all assistance to be provided by the head office organization of
 CNPC to the Contractor in the course of the Exploration Operations and the
 Development Operations and the Production Operations before CNPC takes over the
 said Production Operations, CNPC shall charge an administrative fee for such
 assistances as referred to in (A) and (B) above for each Calendar Year as
 follows:
       During the exploration period, the assistance fee shall be one hundred
 thousand U.S. Dollars (US$100,000); during development period, the assistance
 fee shall be three hundred thousand U.S. Dollars (US$300,000); during the first
 ten years of the production period, the assistance fee shall be two hundred
 thousand U.S. Dollars (US$200,000); during the second ten years of the
 production period, the assistance fee shall be one hundred thousand U.S. Dollars
 (US$100,000); thereafter the assistance fee shall be seventy five thousand U.S.
 Dollars (US$75,000).
       If the whole process of the Exploration Operations or the Development
 Operations or the Production Operations conducted for any Oil and/or Gas Field
 in any Calendar Year is less than twelve (12) calendar months, the
 administrative fee for such Calendar Year shall be calculated in proportion to
 the actual calendar month(s) spent thereon (if the actual time spent thereon in
 any Calendar month is less than thirty (30) days, the calculation shall be made
 based on a full calendar month). The aforesaid administrative fee of the
 Exploration Operations or the Development Operations or the Production
 Operations shall be paid respectively on June 1st and December 1st each Calendar
 Year, with the half of the amount specified for said corresponding periods for
 each time.
       5.2.15 Damages and losses to the assets:
       All costs and expenses necessary for the repair, replacement or supplement
 of assets resulting from damages or losses incurred by fire, flood, storm, theft
 or any other Force Majeure causes, excluding the losses specified in Article 8.4
 of the Contract, which shall be borne by the Operator alone.
       5.2.16 Personnel training costs:
       Costs incurred for personnel training pursuant to Article 16 and Annex
 IV--Training of Chinese Personnel and Transfer of Technology.
       5.2.17 Miscellaneous expenses:
       Any reasonable miscellaneous expenses needed for the Petroleum Operations
 excluded in the above items of expenses, such as bank charges, books, stationery
 and conference expenses as well as other reasonable expenses.
       5.2.18 Overhead:
       Overhead refers to the indirect costs for the managerial and operational
 services provided by the Operator's superior management organizations for the
 Petroleum Operations, including management, administration, accounting,
 treasury, internal audit, tax, legal matters, procurement, employee relations,
 financing, the collection of economic data and costs for
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 general consultation on such planning, design, research and operational
 activities, etc. to the extent that these are not chargeable under Article 5.1.4
 of this Accounting Procedure. The overhead for the Exploration and Development
 Operations shall be calculated in accordance with the following tiers and based
 on the sum of the total actual costs from Article 5.2.1 through Article 5.2.17
 and Article 5.2.19 of this Accounting Procedure, but not including CNPC's
 assistance charges under Article 5.2.14.3 of this Accounting Procedure.
 <TABLE>
 <CAPTION>
       Direct Costs for Exploration                               Percentage Rate
            (U.S.$. /Year)                                              %
 <S>                                                                   <C>
       First Tier 0 to 5,000,000                                       5%
       Second Tier 5,000,001 to 15,000,000                             3%
       Third Tier 15,000,001 to 25,000,000                             2%
       Fourth Tier over 25,000,000                                     1%
 </TABLE>
 <TABLE>
 <CAPTION>
       Direct Costs for Development                               Percentage Rate
            (U.S.$. /Year)                                              %
 <S>                                                                   <C>
       First Tier 0 to 5,000,000                                       5%
       Second Tier 5,000,001 to 15,000,000                             3%
       Third Tier 15,000,001 to 25,000,000                             2%
       Fourth Tier over 25,000,000                                     1%
 </TABLE>
       The overhead rates for the Development Operations shall not include
 investments on special items of construction that include, but are not limited
 to, terminal loading and other facilities of which the overhead rates shall be
 agreed upon through discussions between the Parties at the time when the
 development budget is being prepared.
       When the first budget is prepared for Calendar Year of the Date of
 Commencement of Commercial Production from each Oil Field and/or Gas Field, the
 overhead rates for the production period and its related calculation method
 shall be agreed through discussions between the Parties.
       The costs and expenses for offices established by the Operator within the
 Chinese territory which are not specifically dedicated to the Petroleum
 Operations shall be allocated by the Operator to the Petroleum Operations within
 the Contract Area or to other beneficiary Parties, including the Contractor, on
 the basis of actual service time recorded, or may be allocated by other methods
 agreed upon by the Parties. The amount of allocation charged to the Petroleum
 Operations within the Contract Area shall be included in the cost item of
 Article 5.2.19 of this Accounting Procedure. The costs and expenses incurred by
 the offices established by the Operator and its superior organizations of the
 Operator outside the Chinese territory (excluding costs and expenses chargeable
 under Article 5.1.4 of this Accounting Procedure) has been included in the
 overhead and shall not be again charged to the Joint Account.
       On the last business day of each month, the Operator shall make provision
 in the Joint Account for the overhead fees for the current month, calculated on
 the basis of cumulative actual expenditure for the Calendar Year to that date
 and payment shall be made from the Joint Account on the last working day of the
 following month. The final adjustment of the overhead shall be made at the end
 of the Calendar Year in respect to any difference between the actual payment by
 the Joint Account and the total overhead for that Calendar Year
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                          Zitong Block Petroleum Contract
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 calculated on the annual cumulative actual investment at the end of such year.
 Any excess shall be refunded and deficiencies made good.
       5.2.19 General and administrative expenses:
       General and administration expenses refer to the administrative expenses
 incurred for any offices established by the Operator within the Chinese
 territory and for JMC and its subordinate bodies for the performance of the
 Petroleum Operations, not otherwise directly chargeable pursuant to this article
 5.2 of the Accounting Procedure in accordance with the provisions of the
 Contract. Such expenses shall be classified according to minor accounts.
       5.3 Except as otherwise provided in this Accounting Procedure, the
 allocation of common costs and expenses for each item of operations shall be
 charged in proportion to the exploration costs, development costs and operating
 costs actually incurred in each month.
       5.4 With respect to the expenditures or excess expenditures as mentioned
 in Article 10.2.4 (b) of the Contract which are determined by JMC to be
 unreasonable, JMC will form a joint team for further investigation to determine
 whether they shall be charged to the Joint Account or shall be borne by the
 Operator alone before the year-end final closing of accounts.
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                 ARTICLE 6   RECOVERY OF COSTS AND DEEMED INTEREST
       6.1 According to the provisions of Article 12.2.2 of the Contract, the
 exploration costs shall bear no interest.
       6.2 The calculation of Deemed Interest on the development costs:
       Deemed Interest on the development costs shall be calculated at the
 specified rate from the first day of the month following the month in which the
 development funds of any of the Investing Parties have been received in the
 Operator's bank account for the Joint Account in accordance with the provisions
 of Article 12.2.3 of the Contract.
       There are three hundred and sixty-five (365) days in each Calendar Year
 for the interest calculation and the interest shall be compounded once each
 Calendar Year on December 31 based on the actual number of days eligible for the
 interest.
       Worked Example:
       Development Costs: US $100 received on tenth of March
                          US $100 received on twentieth of March
                          The aggregate amount received in March is US $200.
       Deemed Interest shall be calculated from the first of April through the
 end of such Calendar Year with a total number of two hundred and seventy-five
 (275) days.
                                           275 days
       Formula: Interest = US $200 x 9% x  --------
                                           365 days
       At the end of the year interest is added to the capital and interest
 thereon accrues until cost recovery is fully achieved, i.e. interest is
 compounded at year end.
       6.3 Recovery of exploration costs, development costs with Deemed Interest
 thereon and operating costs:
       6.3.1 In accordance with the provisions of Article 12.2.2 of the Contract,
 the exploration costs shall be recovered from the Oil Fields and/or Gas Fields
 within the Contract Area which have been developed and are producing and in
 which development the Contractor has participated.
       6.3.2 In accordance with the provisions of Articles 12.2.1, 12.2.3.1 and
 12.3 of the Contract, the principal of development costs and Deemed Interest
 thereon and operating costs, respectively, of each Oil Field and/or Gas Field
 shall be recovered only from the production of each respective Oil Field and/or
 Gas Field.
       6.3.3 As at the date of completing each lifting of Crude Oil and/or at the
 date of delivery of Non-associated Natural Gas, the Operator shall make separate
 entries in the Joint Account for the appropriate reimbursements of the principal
 of exploration costs, development costs with Deemed Interest thereon and
 operating costs respectively in accordance with Article 12.2 of the Contract.
 Written notices shall be sent by the Operator to CNPC and the
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 companies comprising the Contractor at the same time.
       6.4 In accordance with provisions of Article 19.1 of the Contract, the
 Operator shall establish complete books for recording the volume and value of
 Crude Oil and /or Natural Gas, precisely reflecting the production and the
 disposal of the Crude Oil and/or Natural Gas within the Contract Area.
       6.5 Crude Oil production in each Calendar Year for each Oil Field within
 the production period shall be accounted for according to the allocation
 proportions specified in Article 13 of the Contract and at the Crude Oil price
 determined pursuant to Article 14.4 of the Contract. The amount of the
 Non-associated Natural Gas in each Calendar Year within the production period
 shall be accounted for in accordance with the provisions specified in Article 18
 of the Contract.
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                          ARTICLE 7   ACCOUNTING REPORTS
       7.1 The Operator shall provide relevant accounting reports and statements
 based on the Accounting System to CNPC and each company comprising the
 Contractor. Monthly reports and statements shall be submitted within thirty (30)
 days after the end of each month, quarterly reports within forty-five (45) days
 after the end of each Calendar Quarter and annual reports within forty-five (45)
 days after the end of each Calendar Year. Monthly, quarterly and annual reports
 shall be submitted in accordance with requirements and formats specified in the
 Accounting System.
       7.2 CNPC and any of the companies comprising the Contractor may require
 the Operator to allow its staff to have access to the Joint Account Accounting
 Records relating to the application of expenses in the stipulated custody
 period, upon giving thirty (30) days notice but such access shall not unduly
 hinder Operator's normal operations.
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                                 ARTICLE 8   AUDIT
       8.1 Audits shall be carried out in accordance with Article 19.2 of the
 Contract.
       8.2 The expenses of audits for any non-Operators shall be borne by any
 non-Operator which conducts the audit. The expenses for any joint audits
 conducted by the non-Operator shall be allocated in proportion to their
 respective participating interests in the development costs.
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             ARTICLE 9   THE TRANSFER PROCEDURE FOR THE JOINT ACCOUNT
       9.1 When the Exploration Operations are successful and the Contract Area
 enters the development period, the Operator shall conduct an inventory and check
 and audit of all properties and accounts for CNPC. When each Oil Field and/or
 Gas Field within the Contract Area goes from development period into the
 production period, or when the Contractor terminates the Contract, an inventory
 and check and audit of all properties and accounts shall be conducted.
       If the Contract Area has entered into the development period or the
 production period, the Operator (after taking an inventory of all properties
 taken by all Investing Parties) shall make a proposal to JMC for its approval
 listing the remaining equipment and Materials needed for the Petroleum
 Operations for the following period and which shall be carried forward to the
 next period in book values in the Joint Account. The Operator shall be
 responsible for the disposal of the equipment and materials not needed for
 Petroleum Operations, the gains or losses derived from such disposal shall be
 allocated in accordance with the share of each Investing Party in proportion to
 the overall investment amount of all Investing Parties and be adjusted against
 the original accounts.
       Any equipment and material, which are purchased in the Development Period
 and Production Period and not necessary in the later operations, shall be
 disposed of by the Operator. The gains or losses derived from such disposal
 shall be allocated in the Parties' proportion of the Production Period, and the
 original account shall be adjusted accordingly.
       In the production period, the remaining equipment and material after the
 Contractor's recovery of its all investment shall be disposed of as provided in
 Article 17 hereof.
       If the Contract terminates, the method of an inventory to all of the
 remaining equipment and Materials shall be the same as mentioned above, and the
 gains and losses derived from such disposal shall be adjusted against the
 accounts of the original Investing Parties in accordance with the above
 mentioned methods.
       9.2 In accordance with the provisions of Article 8.8 of the Contract, when
 CNPC becomes the Operator of all the Oil Fields and/or Gas Fields within the
 Contract Area, the former Operator shall transfer to CNPC all the Accounting
 Records relating to the Joint Account.
       9.3 During the enforcement of the Contract, the Operator is varied due to
 the assignment of the rights and interests of the Contractor, the Operator shall
 turn in all the accounting records relating to the Joint Account.
       9.4 In accordance with the provisions of Article 8.8 of the Contract, when
 CNPC becomes the Operator of a single Oil Field and/or Gas Field, the former
 Operator shall transfer to CNPC the Accounting Records relating to the
 development costs and production operating costs of that Field as contained in
 the Joint Account. The Accounting Records relating to the exploration costs of
 the Contract Area shall be retained by the former Operator until the total
 exploration costs of the Contract Area have been recovered. Copies shall be
 provided by the former Operator to CNPC if required by CNPC.
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       9.5 The former Operator shall transfer all the relevant vouchers, books
 and statements over to the new Operator if there is a change of the operatorship
 due to assignment of rights and interests.
       9.6 Upon the termination of the Contract, the Operator shall transfer all
 the relevant vouchers, books and statements over to CNPC for custody.
       9.7 In conducting the transfer of the accounting books and inventory and
 check of all the properties in accordance with the provisions of this Accounting
 Procedure, the implementation procedure for the transfer and verification, the
 accounting files to be transferred and accounting matters to be settled as well
 as other details shall be agreed upon through consultation in advance between
 the Operator and CNPC. The transfer procedure shall be completed within the time
 period agreed upon by the Parties. Thereafter, owing to the needs of any
 Investing Party to the Contract, CNPC shall allow that Party's staff access to
 the Accounting Records within the relevant Accounting Records custody period and
 provide them with duplicates, if necessary.
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                            ANNEX III   PERSONNEL COSTS
 Table of Contents
 Article 1       General Provisions
 Article 2       Employment of Chinese Personnel
 Article 3       Salaries and Wages of Personnel
 Article 4       Other Expenses
 Article 5       Settlement of Personnel Costs
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                          ARTICLE 1   GENERAL PROVISIONS
       1.1 This Annex is an integral part of the Contract. The definitions set
 forth in Article 1 of the Contract are applicable to this Annex. If the
 provisions in this Annex are in conflict with those in the Contract, the
 provisions of the Contract shall prevail.
       1.2 The provisions in this Annex with respect to personnel costs shall
 only be applicable to the following personnel:
       (1) representatives of JMC appointed by CNPC referred to in Article 7.1.1
 of the Contract;
       (2) personnel of CNPC in the subordinate bodies of JMC referred to in
 Article 7.4 of the Contract;
       (3) professional representatives assigned by CNPC to the Operator's
 (Contractor's) organizations referred to in Article 7.5 of the Contract; and
       (4) personnel furnished by CNPC to the Contractor for employment (not
 including personnel recruited by CNPC for the Contractor) referred to in Article
 2 hereof.
       1.3 Personnel costs referred to in this Annex shall include salaries and
 wages of personnel specified in Article 3 hereof and other expenses specified in
 Article 4 hereof.
       1.4 There is a table attached to this Annex, i.e. Table of Salary and Wage
 Standards of Chinese Personnel.
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                    ARTICLE 2   EMPLOYMENT OF CHINESE PERSONNEL
       2.1 The Contractor shall employ the Chinese Personnel in accordance with
 Article 15.2 of the Contract.
       2.1.1 When employing the Chinese Personnel, the Contractor shall submit to
 CNPC a personnel employment plan, which shall specify specialties, number of
 personnel necessary to be employed, and such requirements as to technique,
 experience and education, etc. with respect to the personnel to be employed.
       2.1.2 CNPC shall, within sixty (60) days from the date on which it
 receives the personnel employment plan submitted by the Contractor, notify the
 Contractor in a written form of the following:
       (1) names and specialties of employee candidates which will be furnished
 by CNPC, as well as their health conditions, working experience and education;
 and
       (2) specialties and number of employee candidates to be recruited by CNPC
 for the Contractor and provided by Chinese organizations other than CNPC, as
 well as recruitment arrangements with respect thereto.
       2.1.3 The employee candidates furnished and recruited by CNPC for the
 Contractor shall be employed by the Contractor only when they have passed tests
 conducted by the Contractor or become qualified after being trained by the
 Contractor. The Contractor shall notify CNPC in writing of the name list of the
 employee candidates whom it has decided to employ and whom it has decided not to
 employ promptly after the tests or training have been conducted. The Contractor
 shall explain the reason to CNPC with respect to the employee candidates whom it
 has decided not to employ. If the explanation given by the Contractor is
 reasonable, CNPC shall promptly furnish or recruit additional employee
 candidates.
       2.2 The employment contract(s) shall be signed by the Parties for
 employment of personnel furnished by CNPC who have passed the tests conducted by
 the Contractor or become qualified after being trained by the Contractor. The
 said employment contract(s) shall include provisions with respect to employees,
 such as employment, dismissal, resignation, production and working assignments,
 salaries or wages and other expenses, awards and penalties, working time and
 vacations, labor insurance and welfare, labor protection and labor discipline,
 etc. In addition, the Parties shall work out specific stipulations with regard
 to the term of the employment contract(s), conditions of termination and
 modification of employment contract(s), responsibilities in the case of
 violation of the contract, and rights and obligations of the Parties.
       2.3 The Contractor shall notify CNPC in writing thirty (30) days before
 dismissing or replacing any personnel furnished by CNPC and employed by the
 Contractor.
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                    ARTICLE 3   SALARIES AND WAGES OF PERSONNEL
       3.1 Salaries and wages of the personnel referred to in Article 1.2 hereof
 (hereinafter referred to as "CNPC Personnel") shall be dealt with in accordance
 with the following provisions:
       3.1.1 CNPC Personnel shall be divided into two parts, i.e. personnel of
 JMC and employees. Personnel of JMC shall fall into two categories and employees
 shall fall into four categories. The salaries and wages of the personnel in each
 category shall be classified as three levels. The levels of the personnel in
 each category shall be determined in accordance with the number of years of
 working experience they have. Those who have less than three (3) years of
 working experience shall be determined as Level One; those who have three (3) to
 ten (10) years of working experience shall be determined as Level Two; and those
 who have more than ten (10) years of working experience shall be determined as
 Level Three. The salary and wage standards with respect to Levels One, Two and
 Three of each category of personnel are specified in the Table of Salary and
 Wage Standards of Chinese Personnel.
       3.1.2 The salary and wage standards specified in the Table of Salary and
 Wage Standards of Chinese Personnel, which are expressed in 2002 U.S. Dollars
 may be adjusted if justifiable and upon agreement between CNPC and the
 Contractor.
       3.1.3 The salary and wage standards of personnel at each level in each
 category specified in the Table of Salary and Wage Standards of Chinese
 Personnel divided by twenty-one point five (21.5) shall be the daily salary and
 wage standards of personnel at such level in such category.
       3.2 Those CNPC Personnel who have worked for full eighteen (18) days shall
 be paid in accordance with the monthly salary and wage standards; those CNPC
 personnel who have worked for less than full eighteen (18) days shall be paid in
 accordance with the daily salary and wage standards.
       3.3 CNPC's chief representative of JMC shall always be paid in accordance
 with the salary and wage standards with respect to representatives of JMC. Other
 CNPC's representatives of JMC shall be paid, for the period in which he or she
 attends JMC meetings, in accordance with the salary and wage standards with
 respect to representatives of JMC. If any professional representative (including
 the secretary) of CNPC or any CNPC expert working in expert group(s) is
 concurrently a representative of JMC (other than CNPC's chief representative of
 JMC), then he or she shall be paid, for the period in which he or she attends
 JMC meetings, in accordance with the salary and wage standards with respect to
 representatives of JMC, and for the rest of the period in accordance with the
 salary and wage standards with respect to his or her actual post, i.e. the
 professional representative (including the secretary) shall be paid in
 accordance with the salary and wage standards with respect to the professional
 representative, and CNPC experts working in expert group(s) shall be paid in
 accordance with salary and wage standards with respect to the employees
 specified in the Table of Salary and Wage Standards of Chinese Personnel.
       3.4 The initial determination and any subsequent modification with respect
 to any post and level of representatives of JMC appointed by CNPC, secretaries,
 experts and professional
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 <PAGE>
 representatives of CNPC shall be made by CNPC in accordance with the number of
 years of working experience and capabilities they have.
       The levels of the personnel furnished by CNPC and employed by the
 Contractor shall be determined in accordance with Article 3.1.1 herein, the
 posts of such personnel shall be determined by the Contractor on the basis of
 assessment, and the subsequent promotion and demotion with respect to the posts
 or levels of such personnel shall be determined by the Contractor. The aforesaid
 personnel shall be paid in accordance with the salary and wage standards
 corresponding to their new posts from the month following the month in which
 their posts or levels are promoted or demoted.
       3.5 The working time of the secretary, professional representative and
 experts assigned by CNPC to the subordinate bodies of JMC shall be determined in
 accordance with the working system of JMC. However, the professional
 representatives of CNPC shall work for no more than five (5) days per week and
 eight (8) hours per day.
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                            ARTICLE 4   OTHER EXPENSES
       4.1 CNPC Personnel shall be paid, in addition to the salaries and wages as
 stipulated in Article 3 hereof, the following expenses.
       4.1.1 Expenses for working meals and transportation are as follows:
       Four Hundred and Thirty (430) U.S. Dollars each month for each CNPC
 Personnel, of which:
       (1) Ten (10) U.S. Dollars per day for each CNPC Personnel for working
 meals, Two Hundred and Fifteen (215) U.S. Dollars for each month;
       (2) Ten (10) U.S. Dollars per day for each CNPC Personnel for
 transportation, Two Hundred and Fifteen (215) U.S. Dollars for each month.
       Those CNPC Personnel who have worked for eighteen (18) days in a month
 shall be paid in accordance with the monthly expenses for working meals and
 transportation; those CNPC Personnel who have worked for less than eighteen (18)
 days in a month shall be paid in accordance with the daily expenses for working
 meals and transportation.
       4.1.2 Allowance
       Any CNPC Personnel, who work on operating sites or on supporting base in
 desert, Gobi and offshore areas for performance of the Contract, shall obtain an
 allowance from thirty percent (30%) to fifty percent (50%) of the daily salary
 or wage standards as stipulated in Article 3.1.3 hereof.
       4.1.3 Expenses for visiting family:
       4.1.3.1 Any CNPC Personnel whose cumulative working time in a Calendar
 Year reaches six (6) calendar months or more may enjoy a thirty (30) calendar
 day home leave with pay.
       4.1.3.2 Standards of home leave expenses for CNPC Personnel:
       Three Hundred and Fifty (350) U.S. Dollars for each CNPC Personnel each
 time. The home leave frequency and the standards of expenses for any CNPC
 Personnel who work in remote area, desert, Gobi or offshore areas for the
 purpose of performance of the Contract shall be decided through consultation
 between the Parties in view of the actual conditions.
       4.1.4 Premiums for accidental personal injury and death insurance and the
 expenses incurred in dealing with injuries or death of CNPC Personnel, which
 shall include:
       (a) Premiums for accidental personal injury and death insurance calculated
 in accordance with insured amount and insurance premium rate with respect to
 CNPC Personnel in each category; and
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       (b) Expenses actually incurred in dealing with injuries or death in the
 event that accidental injuries to or death of CNPC Personnel occur.
       4.1.5 Expenses for CNPC Personnel on business trips.
       4.1.6 Lodging expenses for CNPC Personnel working in the Petroleum
 operating area or the area where the JMC will locate for the purpose of
 performance of the Petroleum Operations if they are not local residents there.
       4.2 In the event that commodity prices or transportation fees increase,
 the standards of expenses referred to in Articles 4.1.1, 4.1.2 and 4.1.3.2
 herein shall be adjusted accordingly through consultation by the Parties.
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                     ARTICLE 5   SETTLEMENT OF PERSONNEL COSTS
       5.1 Salaries and wages of personnel stipulated in Article 3 hereof and the
 expenses stipulated in Articles 4.1.1, 4.1.2 and 4.1.3 hereof shall all be
 settled by the Operator with CNPC. If the Operator has provided CNPC Personnel
 with working meals and transportation, no expenses specified in Article 4.1.1
 hereof shall be paid to CNPC.
       5.2 The expenses referred to in Article 4.1.4, Article 4.1.5 and 4.1.6
 hereof shall be provided by the Operator or reimbursed based on receipts, bills
 or vouchers.
               TABLE OF SALARY AND WAGE STANDARDS OF CNPC PERSONNEL
 <TABLE>
 <CAPTION>
 Category      Ordinal              Personnel                  Monthly Salary & Wage 
 Standards
               No.                                                          (U.S.$)
                                                          ------------------------------
 ------------
                                                             Level One     Level Two     
 Level Three
                                                          ------------------------------
 ------------
 <S>               <C>                                         <C>           
 <C>            <C>
 JMC               1          Representative of JMC            1,800         2,640          
 3,600
                                Appointed by CNPC
 JMC               2       Professional Representative         1,440         2,040          
 2,640
                              (including Secretary)
 Employee          1        Senior Technical Personnel         1,440         2,040          
 2,640
 Employee          2          Middle Level Technical           1,200         1,500          
 1,800
                                    Personnel
 Employee          3          Ordinary Technical and            900          1,000          
 1,200
                             Administrative Personnel
 Employee          4                  Worker                    650           750            
 950
 </TABLE>
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                          Zitong Block Petroleum Contract
 <PAGE>
        ANNEX IV   TRAINING OF CHINESE PERSONNEL AND TRANSFER OF TECHNOLOGY
 Table of Contents
 Article 1     Use of Appropriate and Advanced Technology
 Article 2     Objectives and Requirements of Training And Transfer of Technology
 Article 3     Program of Training and Transfer of Technology
 Article 4     Scope of Training and Transfer of Technology
 Article 5     Type of Training and Transfer of Technology
 Article 6     Scientific and Technical Cooperation and Exchange
 Article 7     Miscellaneous
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              ARTICLE 1   USE OF APPROPRIATE AND ADVANCED TECHNOLOGY
       Subject to the Contract, the Contractor agrees, in the implementation of
 Petroleum Operations, to apply its appropriate and advanced technology and
 managerial experience including proprietary technology e.g. patented technology,
 know-how or other confidential technology, etc. and according to the requirement
 of the progress of Petroleum Operations, the Parties shall have scientific and
 technical cooperation and academic exchange of views. The Contractor shall, at
 the request of JMC, according to the requirements of the Exploration Operations,
 Development Operations and Production Operations, propose in advance the
 aforesaid specific items and submit them to JMC for discussion and review.
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  ARTICLE 2   OBJECTIVES AND REQUIREMENTS OF TRAINING AND TRANSFER OF TECHNOLOGY
       In accordance with Article 16 of the Contract, the Contractor shall train
 the Chinese Personnel, transfer its technology and managerial experience to CNPC
 and its Affiliates so as to enable the Chinese Personnel to learn the use of the
 appropriate and advanced technology and managerial experience including
 proprietary technology, e.g. patented technology, etc. and to master the
 knowledge and skill in the course of Petroleum Operations according to an agreed
 program, and to obtain all the information and/or data needed for the
 performance of the Petroleum Operations, to develop a competent, matured and
 well-trained Chinese Petroleum team. In the course of such training and transfer
 of technology, any proprietary technology and/or information including
 systematized technical data, information, software, specifications, manuals,
 operating procedure, etc., of the Contractor or its Affiliates, which are
 required in the Petroleum Operations hereunder, and which involve royalty, may
 be used by CNPC and its Affiliates without royalty. However, CNPC shall not
 disclose any proprietary technology and/or information to any Third Party
 without the written consent of the Contractor.
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            ARTICLE 3   PROGRAM OF TRAINING AND TRANSFER OF TECHNOLOGY
       3.1 Respectively before the commencement of the Exploration Operations,
 Development Operations and Productions Operations, the Contractor shall, in
 advance, consult with the representatives of CNPC in JMC and prepare a draft
 program of personnel training and transfer of technology and managerial
 experience respectively for the aforesaid three periods and submit them to JMC
 for discussion and approval. After approval by JMC, the Contractor shall put
 them into practice.
       3.2 In accordance with the aforesaid program approved by JMC and actual
 requirement of the Petroleum Operations, the Contractor shall work out a plan
 for each year respectively during exploration, development and production
 periods. After such plan is approved by JMC, in accordance with the provisions
 of Article 7.2.10 and Article 10 of the Contract, it shall become an integral
 part of the Contractor's annual Work Program and the Contractor shall be
 responsible for its implementation, including trainee study inspection, test and
 certification.
       3.3 The Program and plan submitted by the Contractor for the training of
 the Chinese Personnel and transfer of technology shall include at least the
 fields of specialization, specialized technology, scope of personnel, specific
 job categories, type, method, the number of personnel, timing, location, budget
 and objective to be reached, as well as the method of inspection of the
 trainee's progress, examination, and certification of course completion.
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             ARTICLE 4   SCOPE OF TRAINING AND TRANSFER OF TECHNOLOGY
       4.1 Subject to the Contract, the Parties agree that the Contractor shall,
 according to the requirements of the Petroleum Operations under the Contract,
 train the Chinese Personnel and transfer its technology and managerial
 experience to CNPC, including, but not limited to, the following fields of
 specialization:
       A. Petroleum geology, geochemistry, geophysical data collection,
 conventional and special processing and interpretation, well logging data,
 conventional and special processing and interpretation, well testing and the
 evaluation of oil and gas resources;
       B. Development geology, digital simulation and physical modeling of Oil
 Field development, development seismic data collection, conventional and special
 processing and interpretation, reservoir and development engineering,
 feasibility study and evaluation of Oil Field development, formulation of the
 Overall Development Program, the evaluation of early production or appraisal
 trial production;
       C. Environmental conditions for construction, engineering project
 management, engineering planning, design, construction and installation,
 pipeline laying technique, oil and gas gathering and processing, transportation
 of Crude Oil.
       D. Oil and/or gas recovery technology including production automation,
 remote sensing and control, and technology of secondary and tertiary recovery;
       E. Directional drilling procedures, optimum drilling, formation pore
 pressure estimation and blowout control;
       F. Economic evaluation, finance and control, procurement, sales,
 development of personnel ability and contract administration;
       G. Laws, safety, fire fighting and lifesaving, environmental protection,
 communications and other fields of specialization related to the Contract.
       4.2 The Parties agree that during the Exploration period the Contractor
 shall, in accordance with the fields of specialization specified in Article 4.1
 herein, transfer systematically and in complete sets to CNPC the Contractor's
 technology and managerial experience.
       During the development period and production period, the specialized
 technology and managerial experience transferred to CNPC from the Contractor
 shall be proposed by the Contractor prior to the approval of the Overall
 Development Program of the Oil Field and the commencement of commercial
 production therefrom respectively, and be included in the phasic plan after a
 decision is made thereupon by the Parties through consultation.
       4.3 Subject to the Contract, the Parties agree that the Contractor shall
 train Chinese Personnel, transfer technology and teach managerial knowledge to
 CNPC including, but not limited to, the following personnel areas:
       4.3.1 The Contractor shall transfer its technology to the Chinese
 Personnel who have been assigned to work in subordinate bodies of JMC and teach
 them managerial experience.
       4.3.2 The Contractor shall train the Chinese Personnel who have been
 assigned to the
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 <PAGE>
 Contractor including the Chinese personnel who have been employed by the
 Contractor for the performance of the Contract and transfer technology to them
 in order to improve their technical and/or managerial capabilities.
       4.3.3 The Contractor shall in advance train the Chinese Personnel who will
 be employed by the Contractor for development and production of the Oil Field.
       4.3.4 The Contractor shall train the Chinese Personnel who work in the
 departments of CNPC which are directly related to, or provide directly various
 services for the performance of the Contract, and transfer technology to them.
       4.4 Within the fields of specialization specified in Articles 4.1 and 4.2
 herein, as required for the performance of the Petroleum Operations under the
 Contract, the Chinese Personnel referred to in Article 4. 3 may include, but
 shall not be limited to, the following specific job categories;
       A. Geologists, geophysicists, geochemists, petroleum engineers,
 paleontologists, seismic data collection and conventional and special processing
 and interpretation engineers, well logging data conventional and special
 processing and interpretation engineers;
       B. Development geologists, reservoir and development engineers, experts
 for digital simulation and physical modeling of the Oil Field development,
 engineers for development seismic data collection, conventional and special
 processing and interpretation engineers, formulation of Overall Development
 Program engineers;
       C. Experts for engineering geology, engineering construction managers and
 supervisors, engineering design, construction and installation engineers,
 pipeline laying engineers, oil and/or gas gathering and processing engineers;
       D. Production engineers, automation engineers, remote sensing and control
 engineers, secondary and tertiary recovery, production and maintenance personnel
 and supervisors;
       E. Drilling engineers, mud engineers, drilling managers and supervisors;
       F. Petroleum economists, accountants, auditors, finance managers, planning
 managers, procurement managers, oil and gas sales managers;
       G. Computer hardware engineers, computer software engineers, laboratory
 engineers and operators, communication engineers, safety engineers, pollution
 prevention engineers, experts working in business transactions, material and
 warehouse engineers;
       All the training or employment candidates for the aforesaid job categories
 shall be selected in accordance with the requirements of various periods of the
 Petroleum Operations under the Contract. The Contractor shall propose the
 criteria for the selection, and CNPC shall, pursuant to such criteria, provide a
 list of candidates. If such candidates are not able to meet the requirements of
 the Contractor, CNPC shall provide additional candidates. The Parties shall
 discuss and decide who will finally be selected.
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              ARTICLE 5   TYPE OF TRAINING AND TRANSFER OF TECHNOLOGY
       5.1 The Contractor agrees to train Chinese Personnel in various and
 efficient ways and to transfer its technology and managerial experience to CNPC
 to the extent reasonably possible pursuant to a program agreed by JMC, including
 but not limited to the following:
       5.1.1 With the consent of JMC, the Contractor shall provide necessary
 training equipment and training materials so as to give the Chinese Personnel
 the technology, management and language training, and all the expenditures
 thereunder shall be within the spending limitation for training of Chinese
 Personnel. When necessary, the Contractor shall send its experts to the People's
 Republic of China to give special training courses.
       5.1.2 The Contractor shall send the Chinese Personnel to study in training
 centers, training schools and institutes inside or outside the People's Republic
 of China, as well as in some special scientific research institutes, computer
 centers, and engineering design companies. Some of them shall have the
 opportunity to be able to obtain certain technical qualifications or academic
 degrees.
       5.1.3 The training and the transfer of technology and managerial
 experience shall be realized through working together with Contractor's experts
 in offices and on operating sites of the Contractor inside or outside the
 People's Republic of China.
       5.1.4 The Contractor shall endeavor to persuade the Subcontractors to
 train the Chinese Personnel and transfer technology to them.
       5.1.5 With respect to any specialized technology and managerial experience
 to be transferred by the Contractor to CNPC, the Parties shall organize special
 personnel to be responsible for its execution and realization in accordance with
 the schedule.
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           ARTICLE 6   SCIENTIFIC AND TECHNICAL COOPERATION AND EXCHANGE
       6.1 The Parties agree, in accordance with the requirements of Petroleum
 Operations under the Contract, to have scientific and technical cooperation and
 academic exchange of views, within the fields of specialization specified in
 Article 4.1 of this Annex. The Parties shall discuss and propose a plan, items,
 personnel and type of scientific and technical cooperation and academic exchange
 of views for each year in a phased manner, and submit them to JMC for discussion
 and approval. After approval by JMC, the Contractor shall incorporate them in
 the phased plans and put them into practice.
       6.2 The personnel participating in the scientific and technical
 cooperation and academic exchange of views shall be experts, engineers and
 technicians from scientific research and designing departments related to the
 Contract. The Parties shall provide them with necessary facilities and
 assistance for scientific researches, as required to carry out any plan approved
 by the JMC for scientific and technical cooperation.
       6.3 The Contractor shall furnish CNPC world-wide information concerning
 Petroleum science and technology, economics, legal and managerial topics.
 According to the requirement of Petroleum Operations, scientific and technical
 seminars shall be jointly held by the Parties through consultation. The
 Contractor shall invite the Chinese Personnel to attend relevant scientific and
 technical seminars organized solely by the Contractor or jointly with others and
 shall assist the Chinese Personnel to get permits to attend international
 conferences relating to Petroleum technology, economics and legal topics and to
 participate in other relevant activities.
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                             ARTICLE 7   MISCELLANEOUS
       7.1 All obligations imposed upon Contractor under the provisions of this
 Annex IV shall be limited to those required for the conduct of Petroleum
 Operations under the Contract, unless otherwise agreed by the Parties.
       7.2 This Annex is an integral part of the Contract. The definitions set
 forth in Article 1 of the Contract are applicable to this Annex.
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                              ANNEX V   DATA CONTROL
 Table of Contents
 Article 1       General Provisions
 Article 2       Ownership of the Data
 Article 3       Control and Use of the Data
 Article 4       Scope of the Data Provided for CNPC
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                           ARTICLE 1   GENERAL PROVISION
       This Annex V is an integral part of the Contract. The definitions set
 forth in Article 1 of the Contract are equally applicable to this Annex. If the
 provisions in this Annex are in conflict with those in the Contract, the
 provisions in the Contract shall prevail.
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                         ARTICLE 2   OWNERSHIP OF THE DATA
       2.1 The ownership of all of the data, records, vouchers and other original
 data obtained and/or acquired by the Contractor in the implementation of the
 Contract shall vest in CNPC.
       2.2 The ownership and right of use of cores, rock samples, oil samples and
 other samples obtained and/or acquired by the Contractor from the Contract Area
 shall vest in CNPC.
       2.3 Within the validity period of the Contract, after the termination of
 the Contract and after the Contractor assigns its rights and obligations, no
 data, information and samples mentioned in Articles 2.1 and 2. 2 hereof shall be
 disclosed in any way to a Third Party except as stipulated in Articles 3.4 and
 3.5 hereof or be transferred, donated, exchanged, sold, or published in any form
 without the permission in writing of CNPC.
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                      ARTICLE 3   CONTROL AND USE OF THE DATA
       3.1 During the implementation of the Petroleum Operations, the Contractor
 shall be responsible to keep in good order, all the data, information and
 samples stipulated in Articles 2.1 and 2.2 hereof within the territory of the
 People's Republic of China and shall furnish CNPC in a timely manner with such
 data, information and samples for use and turn them over to CNPC in a
 step-by-step or phase-by-phase manner.
       3.2 The Contractor shall have the right to use or duplicate the data and
 information mentioned in Article 2.1 hereof and use samples referred to in
 Article 2.2 hereof within and outside China and the results of research,
 interpretation, analysis and chemical examination shall be submitted or reported
 to CNPC in a timely manner. The Contractor shall not use the above-mentioned
 data, information and samples for purposes other than those related to the
 implementation of the Contract.
       3.3 Any shipment abroad for use of the original data and information (such
 as original magnetic tapes, original recordings, etc.) referred to in Article
 2.1 hereof and of the samples referred to in Article 2.2 hereof shall be subject
 to the consent in writing of CNPC. Unless otherwise agreed by CNPC, the size of
 any piece of core or amount of any batch of rock cuttings and samples to be
 shipped abroad shall not be greater than one half (1/2) of the total size or
 amount of the original piece or batch. The original data and information shipped
 abroad shall, upon completion of the use or duplication thereof, be shipped in a
 timely manner back to and be kept in China.
       3.4 If, for the purpose of implementation of the Contract, the Contractor
 need to provide the data and information for such Third Parties as banks or
 other credit institutions, Subcontractors and potential assignees to which the
 rights and interests under the Contract are assigned, the type and scope of the
 data and information to be provided shall be subject to review by CNPC and the
 Contractor shall obtain from such Third Parties a written undertaking that they
 shall have the obligation to keep the provided data and information
 confidential.
       3.5 The Contractor may provide such data and information as maybe
 requested by their parent corporations or Affiliates relating to the
 implementation of the Contract or by securities and exchange organizations or
 the governments of the Contractor's home countries, subject to the prior
 reporting thereof to CNPC. The Contractor shall inform the aforesaid parent
 corporations or Affiliates which receive the data and information that they
 shall be obligated to keep such data and information confidential and shall
 request the security and exchange organizations or the governments of their home
 countries to keep such data and information confidential subject to
 international practice.
       3.6 Release of the data and information to the press shall be subject to
 the consultation and agreement between the Parties.
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                  ARTICLE 4   SCOPE OF THE DATA PROVIDED FOR CNPC
       In carrying out the Petroleum Operations, the Contractor shall provide
 CNPC with data and information, including, but not limited to the following:
       4.1 Overall programs and plans of operations and information and documents
 of designs of an individual project:
       4.1.1 Overall and phased exploration program of the Contract Area;
       4.1.2 Annual operational plans for exploration;
       4.1.3 Early development programs, overall development programs and
 adjusted development programs of Oil Fields;
       4.1.4 Plans for production and production testing of wells and Oil Fields;
       4.1.5 The content and general schedules of engineering project;
       4.1.6 Basic designs of engineering projects (e.g. oil, gas and water
 treatment facilities, modules and pipelines);
       4.1.7 Annual and monthly operational progress charts for engineering
 projects;
       4.1.8 Procurement plans and schedules for engineering projects;
       4.1.9 Test-run and commissioning schedules for engineering projects.
       4.2 Information and documents on the progress of all operations:
       4.2.1 Daily, monthly and annual reports on well drilling and production
 testing;
       4.2.2 Daily, monthly and annual reports on production testing and
 production of wells and Oil Fields;
       4.2.3 Monthly and annual reports on operational progress of engineering
 projects;
       4.2.4 Other operational progress reports;
       4.2.5 Operational rules and unpatented technical manuals of Petroleum
 Operations.
       4.3 Original data and information of Petroleum Operations:
       4.3.1 Original magnetic tapes, original records, data, seismic sections,
 drawings and other relevant data and information of geophysical surveys;
       4.3.2 Original records, data, drawings and other relevant data and
 information of geochemical survey;
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       4.3.3 Original records, data, drawings, samples and other relevant
 information of well drilling, mud, well logging, cementing, well completion,
 production testing and workover operations;
       4.3.4 Original records, data, drawings and other relevant information of
 production testing, production, injection and stimulation of wells and Oil
 Fields;
       4.3.5 Original records, data and automatic recording cards of Crude Oil
 and Natural Gas metering;
       4.3.6 Original data and recording cards of Crude Oil and Natural Gas
 transportation, storage and marketing;
       4.3.7 All the samples (including cores, cuttings, oil, gas and water
 samples and mud samples) and results of analysis and chemical examination
 thereon;
       4.3.8 Data on physical properties of pay zones;
       4.3.9 Data on environment, hydrology and meteorology.
       4. 4 Basic information of engineering projects:
       4.4.1 Instructions on design calculations and detailed design drawings of
 engineering projects;
       4.4.2 Technical specifications and standards of design, manufacture and
 installation, safety rules, environmental protection rules and operational
 rules;
       4.4.3 Construction records of individual projects and order slips on
 design and construction alterations;
       4.4.4 Project commissioning drawings and manuals and original records or
 reports on project acceptance.
       4.5 Summary reports on operational results and reports on specialized
 research and comprehensive study of each Petroleum Operation:
       4.5.1 Reports on locations of geophysical survey, geochemical survey, well
 drilling and other operations;
       4.5.2 Operational reports on data processing and interpretation of
 geophysical and geochemical survey;
       4.5.3 Summary reports on drilling geology;
       4.5.4 Summary reports on production testing;
       4.5.5 Reports on physical properties study of oil or gas reservoirs and
 reports on reservoir simulations and analyses;
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       4.5.6 Summary reports on geological structure drilling, reserves
 calculations of Crude Oil or Natural Gas and reports on feasibility study on Oil
 Field geology, development, engineering and economic evaluations;
       4.5.7 Reports on specialized and comprehensive studies on problems arising
 in the course of Oil Field development;
       4.5.8 Reports on experiment and research for engineering designs.
       4.6 Data and information on economic and planning:
       4.6.1 General budgets for basic development plans of Oil Field and
 calculation basis thereon;
       4.6.2 Data on production of Crude Oil and Natural Gas, output value and
 productivity of Oil Field;
       4.6.3 Well drilling work and budgets of Oil Field, as well as economic,
 technical and energy consumption data and information;
       4.6.4 Data on production, marketing, distribution and transportation of
 production from Oil Field;
       4.6.5 Information on investment and financing and accounting for
 engineering projects;
       4.6.6 Other financial data specified in the Accounting Procedure of the
 Contract.
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               ANNEX VI   LETTER OF UNDERSTANDING ON EXISTING WELLS
       With respect to the 6 existing wells (including the 4 producing wells:
 Weicheng#1, Zhebachang#3, Wenxingchang#4 and Laoguanmiao#6, and the 2 new
 drilling wells: Weicheng#2 and Liya#1) within the Contract Area, the Parties
 agree the following principles and provisions:
       1. CNPC shall have the right to carry out any operations in any formations
 of the 6 existing wells above and own all interests in their production and
 reserves.
       2. Once the Contractor has a commercial discovery on any new geological
 trap or structure excluding the structures that the 6 existing wells cover, the
 Contractor shall have the right to drill any well on the structures associated
 with the 6 existing wells, provided that the distance between such well and the
 existing wells shall be no less than 1,000 meters.
       3. Notwithstanding the foregoing, considering the potential impact to the
 existing wells, the Parties will determine the production decline curves of the
 existing wells before the Contractor carries out the drilling operations. If
 there is any adverse impact to the existing wells as a result of the production
 (including production test and trial production) from the wells drilled by the
 Contractor, which has resulted in that the actual production of an existing well
 is lower than its production decline curve determined by the Parties, the
 Contractor shall make compensation to CNPC for the difference between the agreed
 production decline curve and actual production of the well.
       4. The wells to be drilled mentioned above in Article 2 shall not count as
 any Wildcat as referred to in Article 6.2 of the Contract. The 100% costs
 incurred for the exploration and appraisal activities and operations carried out
 by the Contractor in accordance with Article 2 shall be borne by the Contractor
 and shall be deemed as the exploration costs to be recovered under the Contract.
       5. If the Contractor makes investment on the structures associated with
 the 6 existing wells, but decides to terminate the Contract at the end of the
 first phase or second phase of the exploration period or at any other time, the
 Contractor's unrecovered investment will be deemed as its loss, and CNPC shall
 not have any obligation to reimburse such loss. All the assets and production
 caused by such investment shall vest in CNPC.
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 </TEXT>
 </DOCUMENT>