DATED 30th day of November 2001




                         SOUTHERN PETROLEUM NO LIABILITY


                                   ('SELLER')

                                       AND

                          ENERGY EXPLORATION NZ LIMITED

                              ('SELLER GUARANTOR')

                                       AND

                  SWIFT ENERGY NEW ZEALAND LIMITED (OR NOMINEE)

                                    ('BUYER')

                                       AND

                              SWIFT ENERGY COMPANY

                               ('BUYER GUARANTOR')

                                       AND

                          ENERGY EXPLORATION NZ LIMITED

                                    ('EENZL')

- --------------------------------------------------------------------------------
              SOUTHERN PETROLEUM (NEW ZEALAND) EXPLORATION LIMITED SHARE SALE
                             AND PURCHASE AGREEMENT
- --------------------------------------------------------------------------------










                                      INDEX





                                                                                                          
1      DEFINITIONS............................................................................................2

2      INTERPRETATIONS........................................................................................8

3      SALE AND PURCHASE......................................................................................9

   3.1    SALE AND PURCHASE...................................................................................9
   3.2    DIVIDENDS...........................................................................................9
   3.3    PURCHASE PRICE......................................................................................9
   3.4    PAYMENT.............................................................................................9
   3.5    EXISTING EMPLOYEES..................................................................................9
   3.6    LOSS OFFSETS........................................................................................9
   3.7    TAWN DEEP OPTION...................................................................................10
   3.8    RIMU OPTION........................................................................................10
   3.9    OPERATORSHIP.......................................................................................10
   3.10   NOMINATION.........................................................................................10
   3.11   NEW PLYMOUTH LEASE OBLIGATIONS.....................................................................11

4      CONDITIONS............................................................................................11

   4.1    CONDITIONS PRECEDENT TO COMPLETION.................................................................11
   4.2    RESPONSIBILITY.....................................................................................12
   4.3    TERMINATION........................................................................................12

5      PERIOD BEFORE COMPLETION..............................................................................12

   5.1    CARRYING ON OF BUSINESS............................................................................12
   5.2    ACCESS TO WAIHAPA ASSETS, NGAERE ASSETS, EENZL ASSETS AND INFORMATION..............................14
   5.3    PRE-COMPLETION DATE................................................................................14
   5.4    TAX................................................................................................14

6      BUYER GUARANTOR.......................................................................................14

   6.1    GUARANTEE..........................................................................................14
   6.2    LIABILITY UNAFFECTED BY OTHER EVENTS...............................................................15
   6.3    CONTINUING GUARANTEE AND INDEMNITY.................................................................15
   6.4    WARRANTIES BY BUYER GUARANTOR......................................................................15

7      COMPLETION............................................................................................15

   7.1    PLACE AND DATE OF COMPLETION.......................................................................15
   7.2    DELIVERY OF DOCUMENTS BY SELLER....................................................................15
   7.3    REPAYMENT OF ADVANCES..............................................................................17
   7.4    POST-16 NOVEMBER NET REVENUES AND ADJUSTMENT TO PURCHASE PRICE.....................................17
   7.5    BUYER'S OBLIGATIONS AT COMPLETION..................................................................17
   7.6    COMPLIANCE.........................................................................................17
   7.7    ALTERNATIVE BASIS FOR COMPLETION...................................................................18
   7.8    POST COMPLETION....................................................................................18
   7.9    OTHER DOCUMENTS....................................................................................18
   7.10   NAME CHANGE........................................................................................18
   7.11   INCOME TAX RETURN..................................................................................19
   7.12   METERING OBLIGATIONS...............................................................................19
   7.13   NGC GAS AGREEMENT..................................................................................19

8      INDEMNITIES...........................................................................................19

   8.1    SELLER'S INDEMNITY.................................................................................19
   8.2    BUYER'S INDEMNITY..................................................................................19
   8.3    CONSEQUENTIAL LOSS.................................................................................20




   8.4    EXCLUDED LIABILITIES...............................................................................20
   8.5    LIMITATION ON CLAIMS...............................................................................20
   8.6    NOTICE OF CIRCUMSTANCES............................................................................22
   8.7    CONDUCT OF CLAIMS..................................................................................22
   8.8    CONTINUING INDEMNITIES AND SURVIVAL OF INDEMNITIES.................................................22
   8.9    INPUT TAX CREDITS..................................................................................23

9      WARRANTIES............................................................................................23

   9.1    SELLER.............................................................................................23
   9.2    BUYER..............................................................................................23
   9.3    NO WARRANTY UNLESS EXPRESSLY INCLUDED..............................................................23
   9.4    KNOWLEDGE..........................................................................................25
   9.5    DURATION...........................................................................................25

10     PROPERTY..............................................................................................25

11     COSTS, EXPENSES AND DELAYED PAYMENT...................................................................25

   11.1   COSTS AND EXPENSES.................................................................................25
   11.2   LATE INTEREST......................................................................................25

12     TAX...................................................................................................25

   12.1   INDEMNITY..........................................................................................25
   12.2   REFUNDS............................................................................................28
   12.3   GROSS UP...........................................................................................28
   12.4   REFUND OF GROSS UP.................................................................................28
   12.5   LIMITATION ON CLAIMS...............................................................................29

13     CONFIDENTIALITY AND ANNOUNCEMENTS.....................................................................29

   13.1   AGREED ANNOUNCEMENTS...............................................................................29
   13.2   LEGAL REQUIREMENTS.................................................................................29
   13.3   PARTIES TO KEEP CONFIDENTIAL.......................................................................29
   13.4   PERMITTED DISCLOSURE...............................................................................30
   13.5   ADVISERS...........................................................................................30
   13.6   RESPONSIBILITY FOR THIRD PARTIES...................................................................31
   13.7   RESPONSIBILITY FOR AFFILIATE.......................................................................31
   13.8   TERMINATION........................................................................................31
   13.9   SURVIVAL OF CLAUSE 13..............................................................................31

14     GENERAL...............................................................................................31

   14.1   NOTICES............................................................................................31
   14.2   GOVERNING LAW AND JURISDICTION.....................................................................33
   14.3   ARBITRATION........................................................................................33
   14.4   WAIVERS............................................................................................33
   14.5   VARIATION..........................................................................................33
   14.6   ASSIGNMENT.........................................................................................33
   14.7   ENTIRE AGREEMENT...................................................................................34
   14.8   FURTHER ACTIONS....................................................................................34
   14.9   PRIVITY............................................................................................34

15.    SELLER GUARANTOR......................................................................................34

   15.1   GUARANTEE..........................................................................................34
   15.2   LIABILITY UNAFFECTED BY OTHER EVENTS...............................................................34
   15.3   CONTINUING GUARANTEE AND INDEMNITY.................................................................34
   15.4   WARRANTIES BY SELLER GUARANTOR.....................................................................35

16.    NO CONFLICT...........................................................................................35





THIS AGREEMENT is made on the 30th day of November 2001

BETWEEN

SOUTHERN PETROLEUM NO LIABILITY  ("Seller")

AND

ENERGY EXPLORATION NZ LIMITED ("Seller Guarantor")

AND

SWIFT ENERGY NEW ZEALAND LIMITED (or nominee) ("Buyer")

AND

SWIFT ENERGY COMPANY ("Buyer Guarantor")

AND

ENERGY EXPLORATION NZ LIMITED ("EENZL")


WHEREAS:

A.        Seller owns all the Shares in the Company.

B.        The Company owns the Waihapa  Assets,  the Ngaere Assets and the EENZL
          Assets.

C.        Prior to the Completion  Date the Company will have acquired the EENZL
          Assets pursuant to the EENZL Asset Sale and Purchase Agreement ("EENZL
          Agreement") and prior to the Completion Date will have sold its shares
          in  Southern  Petroleum  (Ohanga)  Limited  pursuant  to the  Southern
          Petroleum (Ohanga) Share Sale Agreement.

D.        Seller has provided  additional capital to ensure that the Company had
          sufficient  funds  to  discharge  its  obligations   under  the  EENZL
          Agreement and the Southern Petroleum (Ohanga) Share Sale Agreement.

E.        Seller  agrees to sell and Buyer agrees to buy the Shares on the terms
          and conditions set out in this Agreement.

F.        Seller  Guarantor  agrees to  guarantee  the  performance  of Seller's
          obligations under this Agreement.

G.        Buyer  Guarantor  agrees  to  guarantee  the  performance  of  Buyer's
          obligations under this Agreement and in respect of Buyer's obligations
          arising in respect of the Shares.


                                       1



The Parties AGREE:

1         DEFINITIONS

1.1       Unless the context otherwise requires and subject to Clause 1.2 and 2,
          any word or expression  defined in the Petroleum  Legislation  has the
          same meaning herein.

1.2       Unless otherwise required by the context or subject matter, subject to
          Clause 2:

          "Abandonment Costs" means all costs, charges,  expenses,  liabilities,
          Taxes and  obligations  whatsoever  associated with the abandonment of
          all  production  facilities  and  pipelines  included with the Waihapa
          Assets,  the Ngaere Assets, and the EENZL Assets to standards required
          by  the  Petroleum  Legislation  consistent  with  best  international
          industry   practice,   including  without   limitation   plugging  and
          abandoning wells,  removing plant,  equipment and  infrastructure  and
          restoring and  rehabilitating  land and dealing with any environmental
          or other  claims  and  liabilities,  regardless  of when  such  costs,
          charges, expenses, liabilities, Taxes and obligations are incurred;

          "Affiliate"  means in  relation  to any Party,  any  company  which is
          directly or indirectly  affiliated  with that Party and in the case of
          Seller will include Koninklijke  Nederlandsche Petroleum Maatschappij,
          a  Netherlands  company,  the "Shell"  Transport  and Trading  Company
          p.l.c., an English company and any company which is for the time being
          directly or indirectly  affiliated  with these two companies or either
          of them. For the purposes of this definition, a particular company is:

          (a)       directly  affiliated  with a  company  or  companies  if the
                    latter beneficially holds 50% or more of the shares carrying
                    the  right  to  vote  at  a  shareholders  meeting  (or  its
                    equivalent) of the particular company; or

          (b)       indirectly  affiliated  with a company  or  companies  ("the
                    parent  company or  companies") if a series of companies can
                    be specified, beginning with the parent company or companies
                    and ending with the particular company, so related that each
                    company  in  the  series,   except  the  parent  company  or
                    companies,  is directly or indirectly affiliated with one or
                    more companies earlier in the series;

          "Agreed Rate" means the average 30 day rate of interest  quoted on the
          page  captioned  BKBM of the Reuters  screen at 11:00am  (New  Zealand
          time) on the first  Business Day of each month or part month for which
          interest is to be  calculated,  as an average of those daily rates for
          the relevant period;

          "Ahuroa  Permit" means  Petroleum  Mining  Licence 38139 issued by the
          Minister on 17 November 1987:

          "Bank Account" means:

          The National Bank of New Zealand  Wellington Branch at Chase Manhattan
          Bank  One  Chase  Manhattan  Plaza  New  York  10081  Account  Number:
          001-1-941473 Reference: SHELLN-USD00

          "Business  Day" means a day other  than a Saturday  or Sunday on which
          trading banks are open for general banking business in Wellington, New
          Zealand;

                                       2


          "Commercial Contracts" means the contracts listed in Schedule 3;

          "Company" means Southern Petroleum (New Zealand) Exploration Limited;

          "Companies Act" means the Companies Act 1993;

          "Completion"  means  completion of the sale and purchase of the Shares
          under Clause 7;

          "Completion Date" means the later of:

          (a)       the day falling three (3) Business Days after Seller advises
                    Buyer that the conditions in Clause 4.1 are satisfied; or

          (b)       23.59 hours on 31 December 2001;

          "Confidentiality  Agreement"  means  the  agreement  dated 6 June 2001
          between  an  Affiliate  of  Seller  and  Buyer,   in  respect  of  the
          confidentiality  of  information  provided  by or on  behalf  of  such
          Affiliate  to Buyer for the  purpose of Buyer  evaluating  the Waihapa
          Assets,  the Ngaere  Assets,  the EENZL Assets and other assets of the
          Company and its Affiliates;

          "Data Room" means the room at the  offices of an  Affiliate  of Seller
          accessed by Buyer or any of its advisers or  representatives,  or such
          other place as information was provided or questions answered by or on
          behalf of Seller or the  Company,  as part of  Buyer's  due  diligence
          investigations  on the Waihapa  Assets,  the Ngaere Assets,  the EENZL
          Assets and other assets of the Company and its Affiliates;

         "Disclosure Materials" means:

         (a)        this Agreement;
         (b)        all information and data provided in the Data Room;
         (c)        all   information   available  by  searches  of  the  public
                    registers in New Zealand  located at the  Companies  Office,
                    the  Ministry  of  Economic  Development,  Land  Information
                    Memoranda   from  local   authorities,   and  the   Commerce
                    Commission Public Register ; and
         (d)        all  other  information  and  data in  connection  with  the
                    transaction  contemplated  by  this  Agreement  provided  or
                    communicated  in  writing,  (whether  electronically  or any
                    other  manner) to Buyer,  its  Affiliates,  representatives,
                    advisers or employees by Seller, the Company or any of their
                    Affiliates  or any of  their  representatives,  advisers  or
                    employees  or any  other  person,  before  the  date of this
                    Agreement;

          "Distribution"  has the meaning ascribed to that term in the Companies
          Act 1993;

          "Documents"  mean  any  deed  of  assignment,   assumption,  covenant,
          novation  or other  agreement  required to effect the  assignment  and
          transfer of the Shares;

          "EENZL Agreement" means the asset purchase  agreement  relating to the
          Company's purchase of the EENZL Assets executed and a copy of which is
          attached in Appendix A;

          "EENZL  Assets" means EENZL's  interest in and derived from or related
          to the  Permits  and in and under  the TAWN  Joint  Venture  Operating
          Agreement, and being the subject of the EENZL Agreement;


                                       3



          "Effective Date" means 1 January 2001;

          "Encumbrance" means any overriding royalty interest, carried interest,
          net profit interest,  mortgage,  charge,  pledge,  bill of sale, lien,
          production  payment or agreement for the sale of production or forward
          sale of production, or other material adverse contractual liability or
          obligation  attached to the Waihapa Assets,  the Ngaere Assets,  EENZL
          Assets or the Shares,  including  but not limited to any  agreement to
          grant or create any of the above;

          "Environmental  Claims"  means all  liabilities,  obligations,  costs,
          damages,  fines,  penalties,   actions,  judgements,  suits,  demands,
          proceedings,  disbursements,  claims and expenses  whatsoever  arising
          directly or indirectly as a result of:

          (a)       the use of any land associated with the Waihapa Assets,  the
                    Ngaere  Assets  and/or  the EENZL  Assets by Buyer or by the
                    Company after the Effective Date;

          (b)       any  remediation,  restoration  or  amelioration  activities
                    being  taken  or  required  in  respect  of land  or  waters
                    associated with the Waihapa Assets, the Ngaere Assets and/or
                    the  EENZL  Assets  or  the  Company,  as a  result  of  any
                    pollution or  contamination  (no matter when or by whom such
                    pollution or contamination was caused);

          (c)       any  remediation,  restoration  or  amelioration  activities
                    being taken or required in respect of any other  property as
                    a result  of any  pollution  or  contamination  on, or which
                    emanated  from,  any  land or  waters  associated  with  the
                    Waihapa Assets, the Ngaere Assets and/or the EENZL Assets or
                    the  Company (no matter  when or by whom such  pollution  or
                    contamination was caused); and

          (d)       a claim of any description  whatsoever made by a third party
                    which  arises  directly  or  indirectly  as a result  of any
                    pollution or  contamination  on, or which emanated from, any
                    land or waters  associated  with the Ngaere Assets,  Waihapa
                    Assets,  the EENZL Assets and/or the Company (no matter when
                    or by whom such pollution or contamination was caused);

          "Execution Date" means 30 November 2001;

          "Gas Export  Pipeline" means the Company's  96.76%  indirect  interest
          (following  completion  of the  EENZL  Agreement)  in the  gas  export
          pipeline which is currently owned by the TAWN Joint Venturers and runs
          between the Waihapa  Production  Facilities and the New Plymouth Power
          Station;

          "GST"  means  goods  and  services  tax  imposed  under  the Goods and
          Services Tax Act 1985 ("GST Act");

          "Governmental   Agency"   means  any   government   or   governmental,
          semi-governmental,    administrative,   fiscal   or   judicial   body,
          department, commission, authority, tribunal, agency or entity;

          "Information" means geological,  geophysical or technical  information
          within the custody or control of Seller being information that relates
          to the presence, absence, extent or production of hydrocarbon deposits
          in the  areas of the  Permits  and which  has been  obtained  from the
          exploration and prospecting for or production of Petroleum  within the
          area of the Permits including, without limitation, the books, records,
          seismic  (excluding  the TAWN `3D'  seismic  data) and  interpretative
          data, notes,  drawings,  maps and other information (in various media)
          related to the Permits;

          "Interim  Period" means the period on and from the Effective  Date to,
          and including, the Completion Date;

                                       4





          "Inventory"  means the Company's 100% interest in the inventory listed
          in Appendix G;

          "Kaimiro  Licence" means Petroleum  Mining Licence 38091 issued by the
          Minister on 4 April 1984;

          "Mangahewa  Field  Asset  Sale  and  Purchase   Agreement"  means  the
          agreement to be entered  into on or before the date of this  Agreement
          between Energy  Exploration NZ Limited and Southern Petroleum (Ohanga)
          Limited  relating  to the sale of the  participating  interest  in the
          Mangahewa Permit and associated assets;

          "Mangahewa  Permit" means Petroleum  Mining Permit 38150 issued by the
          Minister on 1 May 2001;

          "Minister"  means the Minister of Energy or any other Minister for the
          time being  exercising the powers  conferred on the Minister of Energy
          by the Petroleum Act 1937 or the Crown Minerals Act 1991;

          "Net  Revenue"  means the amount of the net  revenues  of the  Company
          (which for the purposes of this Agreement includes the net revenues of
          the  EENZL  Assets)  calculated  in  accordance  with the  methodology
          applied  to  calculate  "Total  Due to Buyer  re  Interim  Period"  in
          Schedule 7;

          "New Plymouth Lease  Obligations"  means the obligations  described in
          the letter annexed in Appendix H;

          "New Shares" means the  173,795,000  ordinary shares in the capital of
          the  Company to be issued to Seller and  subsequently  transferred  to
          Buyer together with such other  additional  shares as are necessary to
          provide the Company with  sufficient  funding in combination  with the
          Company's  other sources of finance  including the dividend to be paid
          to the Company by Southern  Petroleum  (Ohanga) Limited (utilising the
          proceeds of the sale of assets  under the  Mangahewa  Field Asset Sale
          and Purchase  Agreement) and the proceeds arising on completion of the
          Southern Petroleum (Ohanga) Share Sale Agreement), to:

          (a)       repay existing intercompany debt;

          (b)       meet the Company's  obligation to pay the purchase price for
                    the EENZL  Assets  under the EENZL  Agreement;  and

          (c)       meet Seller's obligations under this Agreement;

          "Ngaere Assets" means the Company's 36.67%  participating  interest in
          the Ngaere  Permit,  and the TAWN Joint  Venture  Operating  Agreement
          which it held prior to acquiring the EENZL Assets;

          "Ngaere  Permit" means  Petroleum  Mining  Licence 38141 issued by the
          Minister on 4 May 1988;

          "Ngatoro  Permit"  means  Petroleum  Mining Permit 38148 issued by the
          Minister on 23 December 1996;

                                       5



          "Ngatoro Spur Line" means the  Petroleum  liquids  pipeline  currently
          owned by the TAWN  Joint  Venturers  used  for the  transportation  of
          Petroleum  liquids from the Kaimiro  Permit and the Ngatoro  Permit to
          the Oil Export Pipeline;

          "NGC Gas  Agreement"  has the meaning  ascribed to that term in clause
          7.13;

          "Oil Export Pipeline" means the oil export pipeline which runs between
          the Waihapa Production Facilities and the Omata Tank Farm and which is
          currently  owned by the TAWN Joint  Venturers and includes the Ngatoro
          Spur Line;

          "Omata Tank Farm" means the crude oil and condensate  storage facility
          currently  owned by an Affiliate of Seller and situated at Omata,  New
          Plymouth;

          "Party" means a party to this Agreement;

          "Permits"  means the  Ahuroa  Permit,  the Ngaere  Permit,  the Tariki
          Permit and the Waihapa Permit;

          "Petroleum" has the meaning given in the Crown Minerals Act 1991;

          "Petroleum  Legislation"  means the  Petroleum  Act 1937 and the Crown
          Minerals  Act  1991  as  well  as  all   regulations,   administrative
          directions, programmes and determinations made under either or both of
          those Acts;

          "Post-16 November Net Revenues" means the Net Revenue for the calendar
          month of November 2001 less NZ$1,964,959 plus all Net Revenue from and
          including 1 December 2001 until Completion;

          "Purchase Price" means the cash consideration of US$54,781,000;

          "Rimu  Assets"  means  Buyer's 90% interest in  Petroleum  Exploration
          Permit  38719 and Buyer's  interest  in the  Petroleum  Mining  Permit
          application  relating to  Petroleum  Exploration  Permit 38719 (or any
          resulting Petroleum Mining Permit (if granted)),  and 100% of the Rimu
          Production Facilities;

          "Rimu  Confidentiality  Agreement" means the agreement dated 17 August
          2001  between  Buyer  and an  Affiliate  of Seller  (as  varied by the
          agreement dated 27 November 2001) in respect of the confidentiality of
          information  provided by Buyer for the purpose of Seller's  evaluation
          of the Rimu Assets;

          "Rimu Production  Facilities" means the full production and processing
          facilities  owned by Swift Energy New Zealand  Limited  located within
          the area of Petroleum  Exploration  Permit  38719  designed to produce
          specification  gas,  specification  propane and butane, and stabilised
          crude;

          "Shares"  means  all  of the  shares  in the  Company  comprising  the
          ordinary  shares set out in Schedule 6 and the New Shares to be issued
          by the Company to fund its obligations under the EENZL Agreement;

          "Southern Petroleum (Ohanga) Share Sale Agreement" means the agreement
          entered  into on or  about  the  date of this  Agreement  between  the
          Company  and  relating  to the sale of  shares in  Southern  Petroleum
          (Ohanga) Limited, executed and attached as Appendix B;

                                       6


          "Tariki  Permit" means  Petroleum  Mining  Licence 38138 issued by the
          Minister on 17 November 1987;

          "TAWN Deep Option" means the option agreement described in clause 3.7;

          "TAWN Deep Operations  Agreement" means the operating  agreement to be
          agreed between the Parties and executed as  contemplated in accordance
          with clause 4.1(f);

          "TAWN Deep Option Reservoirs" means that part of the land and parts of
          the Permits that are  stratagraphically  described as every  formation
          underlying the base of Tikorangi  limestone within (the Waihapa Permit
          and the Ngaere Permit) and every formation  underlying the base Tariki
          sandstone within the Tariki Permit and the Ahuroa Permit;

          "TAWN  Joint  Venture"  means the joint  venture  formed and  existing
          pursuant to the TAWN Joint Venture Operating Agreement;

          "TAWN  Joint  Venture  Operating  Agreement"  means the Joint  Venture
          Operating  Agreement  dated 14 April 1986 by the then  participants in
          Petroleum  Prospecting  Licences  38034  and  now  applicable  to  the
          Permits;

          "TAWN Joint Venturers" means the parties from time to time to the TAWN
          Joint Venture Operating Agreement;

          "TAWN Land" means the Company's  96.76% indirect  interest  (following
          completion of the EENZL  Agreement) in those real property  rights and
          titles held by the Company or its  Affiliates  relating to the Permits
          through  its   participation  in  the  TAWN  Joint  Venture  Operating
          Agreement, as set out in Schedule 2;

          "TAWN Operator" means the operator of the TAWN joint venture  pursuant
          to the TAWN Joint Venture Operating Agreement,  currently being EENZL,
          acting in that capacity and not as holder of a participating  interest
          in the TAWN Joint Venture;

          "Tax Act" means the Income Tax Act 1994;

          "Tax"  includes  any and all forms of tax (both  domestic  and foreign
          imposed  by any  level  of  government  or  any  public  body)  and in
          particular (but without limitation):

          (a)       income tax,  goods and  services  tax,  fringe  benefit tax,
                    stamp  duty,  land  tax,  gift  duty,  dividend  withholding
                    payments, Energy Resources Levy (if applicable),  government
                    royalties and excess retention tax;

          (b)       all  other  statutory  or  governmental  impositions,  dues,
                    duties, levies, tariffs, charges, rates or local taxes; and

          (c)       all charges,  interest,  penalties,  fines,  additional tax,
                    costs and expenses  incidental and relating to or arising in
                    connection  with  the  re-assessment  of  any  tax or to the
                    negotiation  of  any  closing  of  any  dispute  as  to  the
                    liability  of any  person  for any  tax,  or any  actual  or
                    threatened  taxation claim or proceeding taken in connection
                    with any tax.

          "Taxation" and "Taxes" will be construed accordingly;

                                       7




          "US$" means the lawful currency of the United States of America;

          "Waihapa Assets" means the Company's 36.67% participating  interest in
          the  Waihapa  Permit and the TAWN Joint  Venture  Operating  Agreement
          which it held prior to acquiring the EENZL Assets;

          "Waihapa  Permit" means  Petroleum  Mining Licence 38140 issued by the
          Minister on 17 November 1987;

          "Waihapa Production Facilities" means the facilities owned by the TAWN
          Joint  Venturers  including but not limited to the  Tariki/Ahuroa  gas
          plant,  located  within the area of the Waihapa  Permit and  currently
          used  for  Petroleum  production,  processing,  gathering,  treatment,
          storage and transportation operations; and

          "Wilful  Misconduct"  means any act or omission  done or omitted  with
          deliberate  or  reckless  disregard  for  reasonably  foreseeable  and
          harmful  consequences,  but not  including  any  error  of  judgement,
          mistake, act or omission,  whether negligent or not, by a Party or any
          Affiliate of a Party or any director,  officer, employee or agent of a
          Party or an Affiliate of a Party.

2         INTERPRETATIONS

          In this Agreement, unless the context otherwise requires:

          (a)       headings  are for  convenience  only and do not  affect  the
                    interpretation of this Agreement;
          (b)       words  importing  the  singular  include the plural and vice
                    versa;
          (c)       words importing a gender include any gender;
          (d)       other  parts of speech  and  grammatical  forms of a word or
                    phrase  defined  in  this  Agreement  have  a  corresponding
                    meaning;
          (e)       a reference  to a Clause or  Schedule  is a  reference  to a
                    clause of or schedule to this Agreement;
          (f)       a reference  to this  Agreement  includes  the  Recitals and
                    Schedules;
          (g)       a reference to any law, statute,  regulation,  proclamation,
                    ordinance  or by-law  includes  all  statutes,  regulations,
                    proclamations, ordinances or by-laws amending, consolidating
                    or  replacing  them,  and a  reference  to a law or  statute
                    includes   all   regulations,   proclamations,   programmes,
                    ordinances and by-laws issued under that law or statute;
          (h)       a reference to a document or permit  includes any  agreement
                    in writing, or any certificate,  notice, instrument or other
                    document of any kind and any  amendment or  supplement to or
                    replacement or novation of them;
          (i)       a reference to a party to a document  includes  that party's
                    successors and permitted assigns;
          (j)       where  the day on or by which any thing is to be done is not
                    a  Business  Day,  that  thing  must  be  done  on the  next
                    succeeding Business Day;
          (k)       no rule of  construction  applies to the  disadvantage  of a
                    Party because that Party was responsible for the preparation
                    of this Agreement or any part of it; and
          (l)       all  references  to "$" or "Dollars"  are  references to New
                    Zealand dollars unless otherwise specified.

                                       8


3         SALE AND PURCHASE

3.1       Sale and Purchase

          Seller agrees to sell and Buyer agrees to buy the legal and beneficial
          title to the Shares free from any Encumbrances and with the benefit of
          all  rights  attaching  to the  Shares  on or  after  the date of this
          Agreement, on the terms and conditions set out in this Agreement.

3.2       Dividends

          Buyer shall be entitled to all dividends payable on the Shares as from
          the Effective Date.

3.3       Purchase Price

          Buyer shall pay to Seller the Purchase  Price in the manner and at the
          time as provided for in this Agreement.

3.4       Payment

          The Purchase Price shall be paid at Completion.

3.5       Existing Employees

          To the extent any  person  employed  in  connection  with the  Waihapa
          Assets, the Ngaere Assets, the EENZL Assets or the Kaimiro,  McKee and
          Mangahewa petroleum mining  licences/permits is not currently employed
          by the  Company,  Buyer or an  Affiliate  of Buyer  will  prior to the
          Completion  Date  make  to  each  employee  selected  by  Buyer  or an
          Affiliate of Buyer and who is employed in connection  with the Waihapa
          Assets, the Ngaere Assets, the EENZL Assets, or the Kaimiro, McKee and
          Mangahewa petroleum mining  licences/permits both in the field and the
          local office a written  offer,  in form and  substance  acceptable  to
          Seller, which offer will remain open for a reasonable period, offering
          to employ each such  employee  with effect on and from the  Completion
          Date on terms and conditions of employment at least  equivalent to the
          existing terms and conditions (including superannuation and redundancy
          entitlements or benefits and recognition of continuity of service) and
          in a manner  which does not result in Seller or its  Affiliates  being
          liable  to pay more  than 70% of the  total  redundancy  or  severance
          payments  arising out of termination of those employees to whom offers
          are not  made  or who do not  accept  such  offers  and  who are  made
          redundant.  Buyer or an  Affiliate  of Buyer  will be  liable  for and
          indemnify Seller and its Affiliates in respect of not more than 30% of
          the total redundancy or severance payments referred to above.

3.6       Loss Offsets

          (a)       Seller  or any of its  Affiliates  is  entitled  to elect to
                    offset  against  the net income of Seller or such  Affiliate
                    any income tax  losses of the  Company up to the  Completion
                    Date which would otherwise be eliminated as a result of this
                    Agreement.

          (b)       Buyer shall co-operate and procure the Company to co-operate
                    with Seller in the  provision of  reasonable  assistance  in
                    that regard.

                                       9



3.7       TAWN Deep Option

          Seller will, and Buyer agrees to procure the Company to, negotiate the
          terms of a "put" option agreement,  whereby the Company shall have the
          right  exercisable  at any time  within one year after  Completion  to
          "put" 50% of Company's  96.76% interest  (following  completion of the
          EENZL  Agreement)  in the TAWN Deep Option  Reservoirs  to Seller or a
          Seller  Affiliate  and whereby  Seller will have the right  within one
          year after  receiving  the "put"  notice from Buyer to take up all, or
          part, or none of such interest on terms and conditions to be agreed by
          the Parties  including  the transfer by Seller or Seller  Affiliate of
          the TAWN `3D' seismic  data (but with an exercise  price of US$1 to be
          paid and the  transfer  of the TAWN `3D'  seismic  data to take  place
          within 1 Business Day of the exercise of such "put" option  regardless
          of whether any such interest is  transferred).  If the interest is put
          it will be on ground  floor terms  meaning no promote,  no  historical
          cost  reimbursement  or  other  financial  burden.  The  terms  of the
          operating  arrangement  will  require  unanimity  between  Company and
          Seller as to any work programme or expenditures in respect of the TAWN
          Deep Option Reservoirs. If Seller accepts the put the interest will be
          held preferably by way of direct equity  participation in the relevant
          portion of the Permits but if this is not possible  then a contractual
          structure to achieve the required structure will be agreed.

3.8       Rimu Option

          (a)       Buyer  grants  Seller  an  exclusive  option to  acquire  an
                    interest  in the  Rimu  Assets,  in  the  form  attached  in
                    Appendix I, including the area of mutual interest provision,
                    but subject to paragraph (b) below,  so that on the exercise
                    of the option by Seller, Seller shall acquire a 25% interest
                    in the underlying  permits and associated surface facilities
                    of  the  relevant  assets  and  bring  the  area  of  mutual
                    provision into effect.

          (b)       The Parties agree that the terms and conditions  relating to
                    the  purchase  of  those  permits  and   allocated   surface
                    facilities  of the  relevant  Rimu Assets are expected to be
                    substantially in the form attached to the "Exclusive  Option
                    to Purchase an Interest in the Rimu  Facilities" in Appendix
                    I, however the Parties  specifically reserve their positions
                    in regard to those terms and conditions,  particularly those
                    relating to  liabilities,  warranties and taxation which are
                    yet to be agreed.

3.9       Operatorship

          On or before the Completion  Date Seller will procure the  appointment
          of the Company as TAWN Operator.

3.10      Nomination

          (a)       Notwithstanding any provision contained in this Agreement to
                    the contrary, Buyer may nominate another company or party to
                    complete Buyer's  obligations  under this Agreement,  and to
                    give effect to such nomination. Buyer shall advise Seller of
                    the company  which Buyer so  nominates,  provided that Buyer
                    shall not be entitled to nominate  any company  that at both
                    the time of nomination and completion, is not a wholly owned
                    subsidiary of Swift Energy Company.

          (b)       Notwithstanding  any  nomination by Swift Energy New Zealand
                    Limited pursuant to the provisions of clause 3.10(a),  Swift
                    Energy   New   Zealand    Limited   shall   at   all   times
                    unconditionally  guarantee  the due  performance  of all the
                    terms and conditions of this  Agreement,  and the failure to
                    perform any of the terms and conditions of this Agreement by
                    such nominee  shall not release or relieve  Swift Energy New
                    Zealand   Limited  from  any  liability   pursuant  to  this
                    Agreement.

                                       10


3.11      New Plymouth Lease Obligations

          Buyer  agrees to assume the lease  obligations  that will  result from
          exercise  by Buyer of the  first  right of  refusal  described  in the
          letter annexed in Appendix H.

4         CONDITIONS

4.1       Conditions Precedent to Completion

          The respective obligations of Seller to sell and Buyer to purchase the
          Shares  are  conditional  upon all the  following  occurring  prior to
          Completion:

          (a)       the dealings evidenced by the EENZL Agreement being approved
                    as may be required under the Petroleum  Legislation on terms
                    that are acceptable to Buyer and Seller;

          (b)       execution  of all  Documents  required  under  Clause 7.2 by
                    Seller,  Buyer,  the Company and all of the parties required
                    under the relevant Commercial Contracts;

          (c)       receipt of required waivers of pre emptive rights or failure
                    by  the  other  TAWN  Joint   Venturers  to  exercise   such
                    pre-emptive  rights  within the time limits  required by the
                    TAWN Joint Venture Operating  Agreement under the TAWN Joint
                    Venture Operating Agreement;

          (d)       the transactions  evidenced by this Agreement being approved
                    (or not objected to) on terms that are  acceptable  to Buyer
                    in accordance with the provisions of the Overseas Investment
                    Act 1973, if the transaction is subject to the provisions of
                    that  legislation,  provided  that  in  any  event  where  a
                    relevant consent imposes conditions that:

                    (i)       the consent will lapse if the Shares have not been
                              acquired within 12 months of the consent; and/or

                    (ii)      that the  activities  of the Company be restricted
                              to the present business of the Company,

                    then these  conditions  shall be deemed to be  acceptable to
                    Buyer;

          (e)       execution  and  completion  of the EENZL  Agreement  and the
                    Southern  Petroleum  (Ohanga)  Share  Sale  Agreement  which
                    provides  for the result that the Company at the  Completion
                    Date to be beneficially entitled to a 96.76% interest in the
                    Ngaere Assets,  the Waihapa  Assets,  the EENZL Assets,  the
                    Commercial Contracts,  Gas Export Pipeline, the Ngatoro Spur
                    Line, Oil Export  Pipeline,  TAWN Joint Venture,  TAWN Land,
                    the Tawn Deep Option  Reservoirs and the Waihapa  Production
                    Facilities;

          (f)       an agreement being concluded by the TAWN Joint Venturers and
                    the holder(s) of the Kaimiro  Licence and the Ngatoro Permit
                    formally  granting  rights of access to and  capacity on the
                    Oil Export  Pipeline  for  production  from the areas of the
                    Kaimiro  Licence and the Ngatoro  Permit at an agreed tariff
                    as specified in the  Commercial  Contracts  and otherwise on
                    terms that are acceptable to Buyer and Seller;

          (g)       execution of the TAWN Deep Option  Agreement,  the TAWN Deep
                    Operations  Agreement  and the Rimu  Option  referred  to in
                    clauses 3.7 and 3.8;

                                       11



          (h)       documents  evidencing the  appointment of the Company as the
                    TAWN Operator;

          (i)       Seller arranging with the Inland Revenue  Department for the
                    TAWN Joint Venture to have its own GST registration from the
                    Completion Date on terms reasonably  acceptable to Buyer and
                    to Seller;

          (j)       Seller being satisfied that no material  liability,  whether
                    actual or contingent, exists in respect of the Company's own
                    GST registration.

4.2       Responsibility

          The  conditions  set out in Clause 4.1 are for the  benefit of each of
          Seller and Buyer and cannot be unilaterally waived. Buyer must use all
          reasonable  endeavours to fulfil the conditions in Clause 4.1(a), (b),
          (d) and (g) in a timely manner and Seller must provide all  reasonable
          assistance.  Seller must use all  reasonable  endeavours to fulfil the
          conditions in Clause 4.1(a), (b), (c), (e), (f), (g), (h), (i) and (j)
          in a timely manner and Buyer must provide all reasonable assistance.

4.3       Termination

          (a)       The  Party  obliged  to  seek  satisfaction  of a  condition
                    contained in Clause 4.1 must keep the other Party  regularly
                    informed  on  the  progress  of  the  satisfaction  of  that
                    condition and within 2 Business Days of satisfaction of that
                    condition  give notice to the other Party of that fact. If a
                    Party is unable to satisfy a condition  contained  in Clause
                    4.1, it shall immediately notify the other Party.

          (b)       If Completion  does not occur within 120 Days after the date
                    of this  Agreement  or such  later time as the  Parties  may
                    agree in writing,  either Seller or Buyer may terminate this
                    Agreement  by written  notice to the other and no Party will
                    be under any  further  liability  to the  others,  except in
                    respect of any antecedent breaches of this Agreement.

5         PERIOD BEFORE COMPLETION

5.1       Carrying on of Business

          Seller shall,  and shall procure that the Company  shall,  between the
          date of this Agreement and the Completion Date, subject to obligations
          of confidentiality where relevant:

          (a)       inform and consult  with Buyer and obtain the prior  written
                    consent of Buyer on all  material  matters  relating  to the
                    operation of the Ngaere  Assets,  the Waihapa Assets and the
                    EENZL  Assets and, in  particular,  Seller will consult with
                    Buyer before it:

                    (i)       approves  any new work  programme  and  budget  of
                              operations; or
                    (ii)      approves any drilling  operations which are not at
                              the date of this Agreement  approved or identified
                              in an approved work programme and budget;

          (b)       not dispose of any Ngaere  Assets or any  Waihapa  Assets or
                    any EENZL Assets or any interest of Seller in the Commercial
                    Contracts,  Gas Export  Pipeline,  Ngatoro  Spur  Line,  Oil
                    Export  Pipeline,  TAWN Joint  Venture,  TAWN Land, the TAWN
                    Deep Option Reservoirs and the Waihapa Production Facilities
                    other than disposals of Petroleum pursuant to the Commercial
                    Contracts  in the ordinary  course of business,  without the
                    prior written consent of Buyer;

                                       12


          (c)       not create or cause the Company or any  Affiliate  to create
                    any Encumbrances over any of the Ngaere Assets,  the Waihapa
                    Assets or the EENZL  Assets or the Shares or any interest of
                    Seller in the  Commercial  Contracts,  Gas Export  Pipeline,
                    Ngatoro Spur Line, Oil Export Pipeline,  TAWN Joint Venture,
                    TAWN Land,  the TAWN Deep Option  Reservoirs and the Waihapa
                    Production  Facilities  without the prior written consent of
                    Buyer such consent not to be unreasonably withheld;

          (d)       ensure that the Company  does not without the prior  written
                    approval of Buyer:

                    (i)       give  notice of or  otherwise  institute  any sole
                              risk operation;
                    (ii)      farm-out the Ngaere Assets,  the Waihapa Assets or
                              the EENZL Assets;
                    (iii)     surrender  or  relinquish  any part of the  Ngaere
                              Assets,  the  Waihapa  Assets or the EENZL  Assets
                              (subject  to  any  requirement   pursuant  to  the
                              Petroleum Legislation); or
                    (iv)      execute  any  instrument   amending,   waiving  or
                              cancelling   any   provision  of  the   Commercial
                              Contracts;

          (e)       provide  to  Buyer  copies  of all  significant  Information
                    supplied by or obtained from the TAWN Operator in respect of
                    the Ngaere  Assets,  the Waihapa Assets and the EENZL Assets
                    or the Shares or any  interest  of Seller in the  Commercial
                    Contracts,  Gas Export  Pipeline,  Ngatoro  Spur  Line,  Oil
                    Export  Pipeline,  TAWN Joint  Venture,  TAWN Land, the TAWN
                    Deep   Option   Reservoirs   and  the   Waihapa   Production
                    Facilities,  during  that time,  including  any  geological,
                    geophysical  or   engineering   or  other   interpretations,
                    forecasts or evaluations of such Information;

          (f)       ensure that the Company does not seek any  variations to the
                    conditions  of the Permits  without  Buyer's  prior  written
                    consent   (subject  to  any  requirement   pursuant  to  the
                    Petroleum Legislation);

          (g)       not enter  into any major  transaction  (as  defined  in the
                    Companies  Act)  other  than  the  EENZL  Agreement  and the
                    Southern Petroleum (Ohanga) Share Sale Agreement;

          (h)       ensure that the Company does not;

                    (i)       issue  any  Shares,  options  or other  securities
                              other than the New Shares;

                    (ii)      declare or pay any dividend or other  Distribution
                              (except  as  provided  for in  this  Agreement  or
                              without the prior written consent of Buyer);

                    (iii)     effect  any  Distribution  or make  loan or  other
                              payment  (other  than a  payment  in the  ordinary
                              course of  business)  to its  shareholders  or any
                              other person;

                    (iv)      buy back any of its own shares; or

                    (v)       redeem any shares;

          (i)       ensure that no action is taken,  or omitted to be taken,  by
                    the Company,  Seller or any other person which may adversely
                    affect the rights attaching to the Shares; and

                                       13



          (j)       inform  and  consult  with  Buyer on all  Taxation  returns,
                    reports,      declarations,      notices,      certificates,
                    reconciliations and other information  required to be lodged
                    by the Company with the appropriate  government body between
                    the date of this Agreement and the Completion Date.

          Subject to the foregoing  provisions  contained in  subclauses  (a) to
          (j), Seller may procure the Company, and the Company may, carry on its
          business in the ordinary course.

5.2       Access to Waihapa Assets, Ngaere Assets, EENZL Assets and Information

          In addition to its obligations  under Clause 5.1,  between the date of
          this  Agreement and the  Completion  Date Seller will,  subject to any
          confidentiality  restrictions  contained  in the  TAWN  Joint  Venture
          Operating Agreement and the Commercial Contracts and subject to Clause
          13, give Buyer reasonable access to the Waihapa Assets, Ngaere Assets,
          EENZL Assets and  Information  and any other  matters  relating to the
          Commercial  Contracts  during normal  working hours and allow Buyer to
          make copies thereof, at Buyer's cost.

          In  exercising  its  rights  under  this  Clause  5.2,  Buyer will not
          interfere  with the business or operations  of Seller,  the Company or
          the TAWN Operator.

5.3       Pre-Completion Date

          The Parties shall  co-operate to obtain,  by the Completion  Date, the
          execution of any required  consents and releases which may be required
          under the Commercial  Contracts as a result of either the  transaction
          evidenced  by the EENZL  Agreement  or the  change of  control  of the
          Company from the parties to the Commercial Contracts,  and to give any
          notices  on the  Completion  Date such that the  Company  retains  the
          benefit of and remains subject to the obligations under the Commercial
          Contracts.

5.4       Tax

          Seller acknowledges that Buyer intends to make an election pursuant to
          section 338(g) of the United States Internal  Revenue Code of 1986, as
          amended, with respect to the sale of the Company. Buyer shall allocate
          the  "aggregate  deemed sales price" for the deemed sale of the assets
          resulting  from  making the section  338(g)  election  and Seller,  if
          requested by Buyer, shall consent to such allocation.

6         BUYER GUARANTOR

6.1       Guarantee

          In  consideration  of Seller  entering into this Agreement and each of
          the Documents at the request of Buyer Guarantor, Buyer Guarantor:

          (a)       unconditionally  and  irrevocably  guarantees  to  Seller on
                    demand the due and punctual  performance by Buyer of all its
                    obligations  under this Agreement and each of the Documents;
                    and

          (b)       separately  indemnifies  Seller  against any claim,  action,
                    damages, loss, expense, liability or obligation which may be
                    incurred  or  sustained  by  Seller in  connection  with any
                    default   or  delay  by  Buyer  in  the  due  and   punctual
                    performance of any of its  obligations  under this Agreement
                    and each of the Documents.

                                       14



6.2       Liability unaffected by other events

          The liability of Buyer  Guarantor  under this Clause 6 is not affected
          by any act,  omission or thing which,  but for this Clause 6, might in
          any way operate to release or otherwise  exonerate or discharge  Buyer
          Guarantor from any of its obligations  including  without  limitation,
          the entry into any of the  Documents  in a form not  approved by Buyer
          Guarantor,  the grant to Buyer or any other person of any time, waiver
          or other indulgence, or the discharge or release of Buyer or any other
          person from any obligation.

6.3       Continuing guarantee and indemnity

          The guarantee and indemnity constituted by this Clause 6:

          (a)       extends to cover Buyer's  obligations  under this  Agreement
                    and each of the Documents,  all as may be amended, varied or
                    replaced,  whether  with or  without  the  consent  of Buyer
                    Guarantor; and

          (b)       is  a  continuing   guarantee  and  indemnity  and,  despite
                    Completion, re-transfer of the Shares to Seller, transfer of
                    any  part  or all of  the  Shares  or  termination  of  this
                    Agreement,  remains  in full force and effect for so long as
                    Buyer or any  successor or  permitted  assignee of Buyer has
                    any actual or  contingent  liability or obligation to Seller
                    or  its   Affiliates,   sucessors  or  assigns   under  this
                    Agreement.

6.4       Warranties by Buyer Guarantor

          (a)       Buyer Guarantor makes the warranties set forth in Schedule 4
                    (as if  each  reference  therein  to  Buyer  were  to  Buyer
                    Guarantor) in favour of Seller as at the Execution  Date and
                    as at the Completion Date.

          (b)       Buyer Guarantor notes the acknowledgments of Buyer contained
                    in Clause 9.3 and confirms that such  acknowledgments  apply
                    equally to Buyer Guarantor.

7         COMPLETION

7.1       Place and Date of Completion

          Subject to the  satisfaction  of the conditions set out in Clause 4.1,
          Completion  shall take place at 0600 hours on 31  December  2001 or on
          the Completion  Date  (whichever is the later) at the offices of Shell
          (Petroleum Mining) Company Limited in Wellington,  New Zealand,  or at
          such other time or place as the Parties may agree.

7.2       Delivery of Documents by Seller

         At Completion, Seller shall deliver to Buyer the Documents, which,
         without limiting the generality of the defined term will include:

         (a)        registrable  transfers  of the Shares  executed by Seller or
                    the  relevant  transferor  in favour of  Buyer,  or  Buyer's
                    designated   nominee,   together  with  the  relevant  share
                    certificates or a certificate from a director of the Company
                    certifying that no share  certificates have been issued;

                                       15




          (b)       any  waivers  or  consents,   whether  under  the  Company's
                    constitution  or otherwise,  which are or may be required to
                    enable Buyer or its nominee to be  registered  as the holder
                    of  the  Shares,  each  waiver  or  consent  to be in a form
                    acceptable to Buyer;

          (c)       the written resignations of all the directors of the Company
                    from their  respective  offices  as  director  with  written
                    confirmation  that they are owed no money by the Company and
                    have no claim against the Company;

          (d)       (i) the  common  seal,  certification  of  registration  and
                    incorporation,  minute book,  share register,  and interests
                    register; and

                    (ii)      all  other   statutory   and  other   records  and
                              registers   of   the   Company,   copies   of  all
                              correspondence  with the Inland Revenue Department
                              and all financial  statements  of the Company,  in
                              each case in the known  possession  of the Company
                              or its  Affiliates  after  reasonable  and careful
                              enquiry   by   EENZL,   the   Company   and  their
                              Affiliates;

          (e)       releases of all encumbrances over the Shares and releases of
                    any  guarantees  or  indemnities  given by the Company other
                    than under the TAWN Joint Venture Operating Agreement, under
                    the  Permits  and/or  the  Commercial  Contracts,  in a form
                    acceptable to Buyer;

          (f)       evidence  acceptable  to Buyer  that all  moneys  have  been
                    repaid under sub-clause 7.3;

          (g)       a unanimous  resolution in writing of the board of directors
                    of the  Company  (passed  prior to the taking  effect of the
                    resignations referred to at paragraph 7.2(c) above):

                    (i)       revoking   all  mandates  to  bankers  and  giving
                              authority  in  favour of the  directors  appointed
                              under  paragraph  7.2(h)  below,  or other persons
                              nominated by Buyer,  to operate the Company's bank
                              accounts;

                    (ii)      approving  for  registration  the  transfer of the
                              Shares;

                    (iii)     authorising such  administrative  matters as Buyer
                              may reasonably require in that regard;

          (h)       a unanimous resolution in writing of the shareholders of the
                    Company;

                    (i)       appointing  such  persons as Buyer may nominate to
                              be directors of the Company; and

                    (ii)      authorising such  administrative  matters as Buyer
                              may reasonably require in that regard;

          (i)       any consents or releases  obtained in accordance with clause
                    5.3;

          (j)       evidence of execution and completion of the EENZL  Agreement
                    and the Southern  Petroleum  (Ohanga) Share Sale  Agreement;
                    and

          (k)       documents  evidencing  the  resignation of EENZL as the TAWN
                    Operator  and the  appointment  of the  Company  as the TAWN
                    Operator.


                                       16


7.3       Repayment of advances

          Subject to 7.4, the following  must be paid or discharged on or before
          the Completion Date:

          (a)       all   money  or  other   obligations   (whether   actual  or
                    contingent)  owed to the  Company  by Seller  and any of its
                    Affiliates or any other persons (other than debtors  arising
                    in the ordinary course of business to the extent the debtors
                    are for  amounts  not  included  in the  calculation  of the
                    "Total Due to Buyer re Interim Period" in Schedule 7);

          (b)       all money or other  obligations  other  than in  respect  of
                    income  tax  relating  to the  period  from 1  January  2002
                    (whether actual or contingent) owed by the Company to Seller
                    and   any  of  its   Affiliates,   financial   institutions,
                    shareholder  or  any  other  person  (other  than  creditors
                    arising in the ordinary course of business to the extent the
                    creditors are for amounts not included in the calculation of
                    the "Total Due to Buyer re Interim  Period" in Schedule  7);
                    and

          (c)       subject  to  clause  8.4,  all  money or  other  obligations
                    (whether  actual or  contingent)  owed by the Company to any
                    person  prior to or in relation  to the period  prior to the
                    Effective Date.

7.4       Post-16 November Net Revenues and Adjustment to Purchase Price

          (a)       An amount equal to the Post-16 November Net Revenues will be
                    owed by Seller  Affiliate to the Company on Completion.


          (b)       The obligation  for Seller  Affiliate to repay the amount of
                    the Post-16 November Net Revenues  referred to in (a) to the
                    Company,  shall be satisfied  by:

                    (i)       an  amount  equal  to  the  Post-16  November  Net
                              Revenues  relating to 17 to 30 November 2001 being
                              paid  by  Seller  Affiliate  into a  bank  account
                              nominated  by Buyer on or  before  the  Completion
                              Date; and

                    (ii)      an  amount  equal  to  the  Post-16  November  Net
                              Revenues  relating  to the period  from 1 December
                              2001 to the  Completion  Date being paid by Seller
                              Affiliate  into a bank account  nominated by Buyer
                              within 60 days of the Completion Date.

7.5       Buyer's Obligations at Completion

          On or before Completion Buyer must:

          (a)       pay to  Seller  the  Purchase  Price by means of  electronic
                    transfer or transfers of immediately  available funds to the
                    Bank Account in the name of Seller;

          (b)       execute  and deliver to Seller an  executed  counterpart  of
                    each of the relevant Documents  delivered pursuant to Clause
                    7.2.

7.6       Compliance

                    Neither  Seller  nor Buyer  shall be  obliged  to proceed to
                    Completion  unless the other Party has complied  with all of
                    its material  obligations  under this Clause 7 provided that
                    the exercise of any right not to proceed to Completion shall
                    not prejudice the right of Seller or Buyer,  as the case may
                    be, to pursue any remedy for  failure by the other  Party to
                    comply with its obligations under this Clause 7.

                                       17


7.7       lternative Basis for Completion

          If,  within  90 Days  after  the  date of this  Agreement,  all of the
          documentation   specified  in  Clause  7.2  to  be  delivered  at  the
          Completion  Date has not been  executed by all of the parties  thereto
          (other than Buyer,  Seller and the  Company),  then the Parties  shall
          confer to discuss  whether or not  Completion can or should proceed in
          accordance  with  this  Clause  7 and,  if  the  Parties  agree  on an
          alternative  basis for Completion,  then  Completion  shall proceed as
          modified  by  that  agreement.  Completion  may  not  proceed  in  any
          circumstances  if  Seller  reasonably  believes  it would  result in a
          material  breach of a provision of any Commercial  Contract  requiring
          the consent or approval of the other party or parties thereto.

7.8       Post Completion

          At and from Completion, Seller is responsible and will indemnify Buyer
          for all  liabilities,  obligations  expenses,  claims and outgoings in
          relation to the Ngaere Assets,  the Waihapa  Assets,  the EENZL Assets
          the Commercial Contracts, Gas Export Pipeline,  Ngatoro Spur Line, Oil
          Export Pipeline,  TAWN Joint Venture,  TAWN Land, the TAWN Deep Option
          Reservoirs and the Waihapa Production  Facilities arising on and after
          the  Effective  Date as a direct  result of the Wilful  Misconduct  of
          Seller during the Interim Period.

7.9       Other Documents

          Within 30 Days of  Completion  Seller will ensure that the Company has
          in its possession:

          (a)       all  technical  and other data,  books,  records,  accounts,
                    contracts,   maps,   notes,   drawings  and  other   written
                    information  constituting  the  Information  which  has been
                    provided  in  the  Disclosure  Materials  (other  than  that
                    referred to in paragraph (d) of the definition of Disclosure
                    Materials); and

          (b)       all original  Commercial  Contracts (to the extent that they
                    are in the  possession  of or under the control of Seller or
                    its  Affiliates)  or otherwise  copies thereof and any other
                    documents   which  have  been  provided  in  the  Disclosure
                    Materials  (other than those referred to in paragraph (d) of
                    the  definition of Disclosure  Materials)  that evidence the
                    Company's title to or interest in the Ngaere Assets, Waihapa
                    Assets and the EENZL Assets, the Commercial  Contracts,  Gas
                    Export  Pipeline,  Ngatoro Spur Line,  Oil Export  Pipeline,
                    TAWN  Joint  Venture,   TAWN  Land,  the  TAWN  Deep  Option
                    Reservoirs and the Waihapa Production Facilities.

          Buyer  agrees that  Seller has the  irrevocable  and ongoing  right to
          retain copies of all the  Information and other  Disclosure  Materials
          for use of  itself  and its  Affiliates  for  purposes  of  their  own
          operations post Completion PROVIDED THAT Seller covenants that it will
          not without Buyer's prior written consent,  disclose or permit the use
          or disclosure of such  Information  or other  Disclosure  Materials as
          relates to Company,  the Ngaere  Assets,  Waihapa Assets and the EENZL
          Assets, other than to the extent required by law.

7.10      Name Change

          As soon as  possible  but in any  event  within  30  Business  Days of
          Completion, Buyer shall ensure that the name of the Company is changed
          and that all  signage  and other  materials  located  on or within the
          Ngaere Assets,  the Waihapa Assets and EENZL Assets relating to

                                       18


          Seller or any of its Affiliates is removed,  and from  Completion will
          ensure that the name of Seller and its  Affiliates are not used in any
          form or context  indicating  any ownership of the Ngaere  Assets,  the
          Waihapa Assets and the EENZL Assets.


7.11      Income Tax Return

          Seller  shall,  in  consultation  with  Buyer,  prepare at its cost an
          income tax return for the Company for the income tax year ending on 31
          December  2001.  The Company or Buyer shall prepare income tax returns
          for subsequent  periods but in consultation with Seller for any period
          which includes the Completion Date should the Completion Date be after
          31 December 2001.

7.12      Metering Obligations

          Buyer agrees  following  Completion  to procure the Company to install
          the  fiscal  meters  at the time  and in the  manner  required  by the
          Agreement for Use of Omata Oil Storage  Facilities that is included in
          the Commercial Contracts.

7.13      NGC Gas Agreement

          (a)       Buyer  acknowledges  and agrees  that the TAWN  Operator  is
                    negotiating  the terms and  conditions  of the gas transport
                    agreement  intended  to  govern  the  proposed  arrangements
                    regarding gas  transportation  and related matters among the
                    TAWN  Operator,  Natural Gas Contracts  Limited  ("NGC") and
                    Natural Gas  Corporation of New Zealand  Limited  ("NGCNZ"),
                    the  current  draft of which is attached as Appendix C ("NGC
                    Gas Agreement").

          (b)       Buyer  further  acknowledges  and  agrees  for the period up
                    until 30 June  2002  the TAWN  Operator  or the  Company  as
                    proposed   successor   to   EENZL  as  TAWN   Operator   (as
                    contemplated  by this  Agreement)  may  execute  the NGC Gas
                    Agreement  in the form  attached  in  Appendix  C or in such
                    other  form as the TAWN  Operator,  NGC and NGCNZ may agree,
                    and as approved by Buyer,  and Buyer shall  procure that the
                    Company  executes  the  NGC  Gas  Agreement  as  soon  as is
                    practicable  following  Completion  if the NGC Gas Agreement
                    remains  unexecuted at Completion.  Subject to subclause (c)
                    below, Buyer agrees that no claim against Seller shall arise
                    as a consequence  of such  execution and  performance of the
                    NGC Gas Agreement.

          (c)       Buyer's acknowledgments and agreements regarding the NGC Gas
                    Agreement   are  made   subject   to  the   warranties   and
                    representations in warranty 11 of Schedule 5.

8         INDEMNITIES

8.1       Seller's Indemnity

                    Subject only to the  limitations  in Clauses 8 and 9, Seller
                    indemnifies  Buyer and its  Affiliates  against  any and all
                    claims, actions, damages, losses,  liability,  obligation or
                    expenses  suffered  or  incurred in respect of any breach of
                    warranties  given by it under Clause 9.1. Any payment Seller
                    is  required  to make in  relation  to any claim  under this
                    clause 8.1 is to be made to Buyer in reduction and refund of
                    the Purchase Price.

8.2       Buyer's Indemnity

                                       19




          Subject only to the limitations in Clauses 8 and 9, Buyer  indemnifies
          Seller  and  its  Affiliates  against  any and  all  claims,  actions,
          damages,  losses,  liability,   obligation  or  expenses  suffered  or
          incurred  in  respect of any  breach of  warranties  given by it under
          Clause 9.2.  Any payment  Buyer is required to make in relation to any
          claim under this  clause 8.2 is to be made to Seller as an  adjustment
          of the Purchase Price.

8.3       Consequential Loss

          Without limiting clause 12 and  notwithstanding any other provision of
          this  Agreement  neither  Seller and its  Affiliates nor Buyer and its
          Affiliates shall under any  circumstances be liable to the other Party
          or its Affiliates  under,  arising out of or in any way connected with
          this  Agreement,  the Ngaere  Assets,  the Waihapa  Assets,  the EENZL
          Assets or the EENZL Agreement for any indirect or  consequential  loss
          or damage whether arising in contract or tort (including negligence or
          breach of any statutory  duty) or elsewhere.  For the purposes of this
          Clause 8.3,  consequential  loss includes,  but is not limited to, any
          delay in or any  obligation  or  inability  to  produce  or  transport
          Petroleum,  lost  production,  loss of use, loss of revenue or loss of
          profits howsoever arising.

8.4       Excluded Liabilities

          (a)       Notwithstanding  any  other  provision  of  this  Agreement,
                    Seller and its Affiliates shall not under any  circumstances
                    be liable to Buyer or its Affiliates for any costs, charges,
                    expenses,  liabilities or obligations  which arise or relate
                    to the physical  condition or location of the Ngaere Assets,
                    Waihapa  Assets,  EENZL Assets,  or to Abandonment  Costs or
                    Environmental   Claims,   regardless  of  when  such  costs,
                    charges, claims, expenses, liabilities or obligations arose.

          (b)       Buyer  shall  indemnify  and hold  harmless  Seller  and its
                    Affiliates against all costs, charges, expenses, liabilities
                    and  obligations  of the type  described  in  paragraph  (a)
                    above.

          (c)       To the extent that EENZL would have any ongoing  obligations
                    under Section 11.04 (a) of the TAWN Joint Venture  Operating
                    Agreement  following the transfers  effected under the EENZL
                    Agreement such  obligations  will be the  responsibility  of
                    Buyer and Buyer shall indemnify and hold harmless Seller and
                    its   Affiliates   (including   EENZL)   against   all  such
                    obligations.

          (d)       Subject  to clause  8.4(a),  as  between  Seller,  Buyer and
                    EENZL,  Buyer  shall  be  liable  for  all  costs,  charges,
                    expenses,   liabilities   and  obligations  of  the  Company
                    (excluding  the  obligation to pay the Purchase  Price under
                    the EENZL Agreement)  which relate to the period  commencing
                    on or or after 16  November  2001.

          (e)       Subject  to clause  8.4(a),  as  between  Seller,  Buyer and
                    EENZL,  Seller  and  EENZL  shall be liable  for all  costs,
                    charges,  expenses,   liabilities  and  obligations  of  the
                    Company which relate to the period before 16 November 2001.

8.5       Limitation on Claims

          The right of either Buyer or Seller,  as the case may be, to claim for
          and seek  indemnity  in respect of any claim,  action,  damage,  loss,
          expense, liability, or obligation whatsoever (each a "claim") (whether
          relating to a breach of Seller's  or Buyer's  warranties,  as the case
          may be, in Schedules 4 and 5 or otherwise) is limited as follows:

                                       20


          (a)       Buyer  or  Seller,  as the case may be,  must  give  written
                    notice to other Party of the specific claim in question with
                    reasonable  details of the  relevant  claim,  including,  if
                    possible,  Buyer's or Seller's estimate of the amount of the
                    claim, on or before 18 months after the Completion Date;

          (b)       Buyer or Seller,  as the case may be, may only bring a claim
                    or seek an indemnity for an event or circumstances or series
                    of events or circumstances if the amount reasonably  claimed
                    exceeds US$100,000 excluding GST (if any);

          (c)       the maximum  aggregate  amount that Buyer or Seller,  as the
                    case may be, may  recover  in total from the other  Party in
                    relation to one or more claims is the amount of the Purchase
                    Price less the  aggregate  amount of any  claims  previously
                    paid under or in relation to this Agreement;

          (d)       where a claim  relates to a breach of  Seller's  warranties,
                    the quantum of any liability Seller has to Buyer under or in
                    relation to this  Agreement  will be determined by reference
                    to the loss or damage suffered by Buyer or the Company which
                    results from the facts,  matters or  circumstances  on which
                    the claim is based not being as warranted and it will not be
                    necessary  for Buyer to  establish  loss or damage by way of
                    diminution in the value of the Shares;

          (e)       each of Seller's or Buyer's warranties,  as the case may be,
                    is given subject to:

                    (i)       anything done, or omitted to be done, either under
                              any provision of this  Agreement or after the date
                              of this  Agreement  at the request of, or with the
                              approval  of either  Buyer or Seller,  as the case
                              may be;

                    (ii)      any  matter to the  extent  that it was taken into
                              account   in   calculating   the   amount  of  any
                              allowance,  provision or reserve, or was noted in,
                              any   financial   statements   included   in   the
                              Disclosure Materials;

          (f)       the only  relief  available  arising  from any  breach  of a
                    Seller's  warranty is a right of Buyer to claim under Clause
                    8.1.  Buyer has no right to cancel this  Agreement  (whether
                    before or after Completion) as a result of any matter giving
                    rise to a claim under a Seller's  warranty;

          (g)       a breach of  Seller's or Buyer's  warranties  shall not give
                    rise to any other or separate cause of action for damages or
                    other   relief   from   misrepresentation   or   breach   of
                    representation or warranty or otherwise;

          (h)       no claim may be made to the extent that the  relevant  event
                    would not have arisen but for:

                    (i)       a breach of the law or contract,  or commission of
                              a tort by Buyer or Seller or the Company;

                    (ii)      any obligation or commitment entered into by Buyer
                              or Seller or the Company after Completion;

                    (iii)     Buyer,  Seller or the Company admitting  liability
                              without the prior written consent of the other; or

                    (iv)      a change in the law occurring  after the Effective
                              Date;

                                       21


          (i)       Buyer or Seller  shall not recover more than once in respect
                    of any one matter giving rise to a claim;

          (j)       in assessing any damages  recoverable for any claim there is
                    to be deducted  any savings by, or net benefit to,  Buyer or
                    Seller or the Company or any current or former  Affiliate of
                    Buyer;

          (k)       if in relation to any matter which would otherwise give rise
                    to a claim  under this  clause  8.5,  Buyer or Seller or the
                    Company is  entitled to make  recovery  or claim  indemnity,
                    including  indemnity  under a policy or insurance  (or would
                    have been so entitled if it had maintained in place a policy
                    or  policies  providing  equivalent  cover  to  Seller's  or
                    Buyer's or the  Company's  policies of insurance  current at
                    Completion),  the  recovery or claim then will reduce to the
                    extent  of the  recovery  or  claim or  extinguish  any such
                    claim.  Buyer or Seller,  as the case may be,  shall use its
                    reasonable  endeavours to recover or procure the recovery of
                    all claims from insurers or other persons; and

          (l)       if either Seller or Buyer makes any payment as a result of a
                    claim  (the  "Payment")  and Buyer or Seller or the  Company
                    receives  any  benefit  otherwise  than from Seller or Buyer
                    which would not have been received but for the  circumstance
                    giving  rise to the claim in  relation  to which the Payment
                    was made Buyer or  Seller,  as the case may be,  will,  once
                    such benefit has been received, immediately pay to Seller or
                    Buyer an amount  equal to the lesser of the  Payment and the
                    amount of such benefit.

8.6       Notice of circumstances

          Either Buyer or Seller shall give notice to Seller or Buyer as soon as
          reasonably  practicable  after it becomes aware of circumstances  that
          could  reasonably  be expected to form the basis of a claim under this
          Agreement, regardless of value.

8.7       Conduct of Claims

          If Buyer,  Seller or the Company  receives a claim which may give rise
          to a claim  against  Seller or Buyer  under this  Agreement  (except a
          claim in relation to Tax, in which case clause 12.1(f) applies), Buyer
          or Seller, as the case may be, must within 10 Business Days of receipt
          notify  the other  Party of the claim  giving  full  details so far as
          practicable  and,  if Seller or Buyer,  as the case may be,  agrees to
          indemnify   the  other   Party  to  that  other   Party's   reasonable
          satisfaction against all and any costs, charges and expenses which may
          be incurred or for which it may become  liable,  Buyer or Seller shall
          take such  action as Seller or Buyer,  as the case may be,  reasonably
          instructs to avoid,  dispute,  resist,  appeal against,  compromise or
          defend any such claim and as applicable any adjudication in respect of
          it.

8.8       Continuing Indemnities and Survival of Indemnities

          (a)       Subject to Clause  8.4,  each  indemnity  of Seller or Buyer
                    contained in this  Agreement is a continuing  obligation  of
                    Seller or Buyer despite:
                    (i)       any settlement of account; or
                    (ii)      the occurrence of any other thing,  and remains in
                              full  force and  effect  until  all  money  owing,
                              contingently or otherwise, under any indemnity has
                              been paid.

          (b)       Subject  to  Clause  8.4 each  indemnity  of Seller or Buyer
                    contained in this Agreement:
                    (i)       is  an   additional,   separate  and   independent
                              obligation of Seller or Buyer and no one indemnity
                              limits the generality of any other indemnity;  and



                                       22

                    (ii) survives the termination of this Agreement.

          (c)       Each  Party  acknowledges  that it must take  such  steps to
                    mitigate any loss the subject of any indemnity in its favour
                    as it would be obliged to take, if the loss in question gave
                    rise  to a  claim  for  damages,  rather  than  a  right  of
                    indemnity.

8.9       Input Tax Credits

          For the avoidance of doubt any indemnities given by a Party under this
          Agreement  exclude any  liability to indemnify  the other Party to the
          extent of any GST input tax credits  which may be claimed by the other
          Party in respect of the claim.

9         WARRANTIES

9.1       Seller

          Seller makes the warranties set forth in Schedule 5 in favour of Buyer
          as at the  Execution  Date and,  subject to the  following,  as at the
          Completion Date.  Seller shall promptly  disclose to Buyer any notices
          or claims received by Seller between the Execution Date and Completion
          Date in respect of the  warranties in Schedule 5. Such  warranties are
          made subject to the qualifications made in this Agreement.

9.2       Buyer

          Buyer makes the warranties set forth in Schedule 4 in favour of Seller
          as at the  Execution  Date and  subject  to the  following,  as at the
          Completion Date.  Buyer shall promptly  disclose to Seller any notices
          or claims  received by Buyer between the Execution Date and Completion
          Date in respect of the  warranties in Schedule 4. Such  warranties are
          made subject to the qualifications made in this Agreement.

9.3       No Warranty Unless Expressly Included

          (a)       Save as and to only the  extent  set  forth in  Clause  9.1,
                    Seller  and  its  Affiliates  make  no   representations  or
                    warranties  in respect of any matter or thing and  disclaims
                    all liability  and  responsibility  for any  representation,
                    warranty,  statement, opinion, information or advice made or
                    communicated  (orally  or  in  writing  (including,  without
                    restriction, electronically)) to any person including Buyer,
                    its  Affiliates  or  any  officer,  stockholder,   director,
                    employee, agent, consultant,  counsel or adviser of Buyer or
                    its Affiliates  (including,  without limiting the generality
                    of the foregoing, any representation,  warranty,  statement,
                    opinion,  information  or advice  made and  communicated  to
                    Buyer  by  any  officer,  stockholder,  director,  employee,
                    agent,  consultant,  counsel or adviser of Seller) and Buyer
                    acknowledges  and  affirms  that it has not relied  upon any
                    such   representation,    warranty,    statement,   opinion,
                    information  or advice in entering  into or carrying out the
                    transactions contemplated by this Agreement.

          (b)       Buyer  acknowledges  and  affirms  that it has  made its own
                    independent  investigation,  analysis and  evaluation of the
                    geological,  geophysical  and  engineering  interpretations,
                    economic   valuations   provided  by  EENZL  (excluding  the
                    underlying  assumptions  upon which such valuations and cost
                    allocations are based),  physical condition of equipment and
                    assets,  assessment  of tax matters,  legal and  contractual
                    rights, obligations and liabilities and prospects for any of
                    the Ngaere Assets,  the Waihapa Assets,  or the EENZL Assets
                    or any interest of Seller in the Commercial

                                       23



                    Contracts,  Gas Export  Pipeline,  Ngatoro  Spur  Line,  Oil
                    Export  Pipeline,  TAWN Joint  Venture,  TAWN Land, the TAWN
                    Deep Option Reservoirs and the Waihapa Production Facilities
                    and acknowledges and affirms, that in making the decision to
                    enter into the Agreement,  it has relied to that extent upon
                    its   independent    investigation    and   those   of   its
                    representatives,   including   professional,   legal,   Tax,
                    financial, business and other advisers.

          (c)       Any  breach of  warranty  shall not be  enforceable  against
                    Seller to the extent  that it is shown that the  inaccuracy,
                    error or omission underlying the alleged breach was known by
                    Buyer at the time Buyer entered into this Agreement.

          (d)       The warranties and any  liabilities of Seller are subject to
                    the  matters  contained  or  referred  to in the  Disclosure
                    Materials, and the warranties do not apply to those matters.
                    Any  breach  of  warranty  will not be  enforceable  against
                    Seller to the extent  that it is shown that the  inaccuracy,
                    error  or  omission   underlying   the  alleged  breach  was
                    disclosed in the Disclosure Materials.

          (e)       Buyer  acknowledges  that  it has  had  the  opportunity  to
                    examine the Disclosure Materials, seek independent advice in
                    relation to the Shares, the Company,  the Ngaere Assets, the
                    Waihapa Assets and the EENZL Assets, conduct a due diligence
                    exercise in relation to the Shares,  the Ngaere Assets,  the
                    Waihapa   Assets   and  the  EENZL   Assets  and  to  obtain
                    information in respect of those matters that Buyer considers
                    relevant,   and  that  a  buyer  would  reasonably  consider
                    relevant,  to entering  into this  Agreement and that it has
                    knowledge and  experience in  international  and New Zealand
                    oil   and   gas   exploration,    development,   production,
                    transportation,  storage,  marketing  and in  financial  and
                    other   business   matters  and  is  therefore   capable  of
                    evaluating  the merits and risks  associated  with  entering
                    into this Agreement;

          (f)       Without  prejudice to any other provision of this Agreement,
                    Seller makes no representations or warranties as to:

                    (i)       the  amounts of reserves  attributable  to and the
                              field  life  of the  Ngaere  Assets,  the  Waihapa
                              Assets or the EENZL Assets or the  availability of
                              Petroleum;
                    (ii)      any    geological,    geophysical,    engineering,
                              economic,   fiscal   or   other   interpretations,
                              forecasts or evaluations;
                    (iii)     the physical condition of any equipment, material,
                              fixtures,  fittings, wells or other items included
                              in the Ngaere  Assets,  the Waihapa  Assets or the
                              EENZL Assets;
                    (iv)      the extent of the  liabilities and obligations and
                              rights and  benefits  under the Ngaere  Permit and
                              the  Waihapa   Permit,   the  TAWN  Joint  Venture
                              Operating Agreement, the Commercial Contracts, the
                              EENZL  Assets,  the EENZL  Agreement  and the TAWN
                              Land arrangements;
                    (v)       future matters, including future or forecast costs
                              (including but not limited to, Abandonment Costs),
                              revenues, profits, or environmental remediation or
                              rehabilitation costs; or
                              terms or  availability  of markets for  Petroleum,
                    (vi)      pipeline   access,   transportation,   storage  or
                              wharfage rights whether through Seller, Affiliates
                              of  Seller  or   otherwise   (except   as  may  be
                              specifically   provided  for  in  the   Commercial
                              Contracts;

                    in so far as they  relate to any of the Ngaere  Assets,  the
                    Waihapa  Assets,  or the  EENZL  Assets or any  interest  of
                    Seller in the Commercial Contracts, Gas Export

                                       24


                    Pipeline, Ngatoro Spur Line, Oil Export Pipeline, TAWN Joint
                    Venture,  TAWN Land, the TAWN Deep Option Reservoirs and the
                    Waihapa Production Facilities.

9.4       Knowledge

          Where any warranty is qualified by any  reference to the  knowledge or
          awareness  or belief of  Seller,  this  shall  mean the  knowledge  or
          awareness of the directors of Seller and its New Zealand  incorporated
          Affiliates,   and  there   shall  be  implied  in  that   warranty  or
          representation  a warranty that such  individual  has made  reasonable
          enquiries within the  professional  organisation of Seller and its New
          Zealand incorporated  Affiliates concerning the subject matter of that
          knowledge, awareness or belief.

9.5       Duration

          The  warranties  set  forth in  Schedules  4 and 5 shall  survive  the
          Completion  Date for a period of 18 months and then  terminate  except
          that any warranties  provided in Clause 10 of Schedule 5 shall survive
          for the period ending the sooner of:

          (a)       the date after  which the Inland  Revenue or other  relevant
                    public  body is no  longer  able to issue an  assessment  or
                    similar notice in respect of the period or event giving rise
                    to the claim; and

          (b)       eight years after the Execution Date.

10        PROPERTY

          On  Completion,  property  in the  Shares  and  all  entitlements  and
          obligations associated with ownership of the Shares passes to Buyer.

11        COSTS, EXPENSES AND DELAYED PAYMENT

11.1      Costs and Expenses

          Each  Party  shall pay its own costs and  expenses  in  respect of the
          negotiation, preparation, execution, delivery and registration of this
          Agreement,  the Documents or other  agreements or instruments  entered
          into or signed in order to effect  the  transactions  contemplated  by
          this Agreement.

11.2      Late Interest

          Without  prejudice to any other rights  under this  Agreement,  if any
          amount  payable  under  this  Agreement  is not  paid  when  due,  the
          defaulting  Party  shall pay  interest on a daily basis on such amount
          from the due date of payment (after as well as before judgement) until
          and  including the date of payment at a rate equal to two percent (2%)
          per annum over the Agreed Rate.

12        TAX

12.1      Indemnity

          (a)       Notwithstanding  any  other  provisions  in this  Agreement,
                    including  (without  limitation)  Clauses  8.3  and  9,  but
                    subject  to  clause  12.5,  Seller   indemnifies  Buyer  and


                                       25



                    undertakes to keep Buyer at all times fully and  effectively
                    indemnified from and against any Taxation or Taxation claim,
                    whether  made  against  Buyer or the  Company  or any  other
                    person in respect of the Company, which:

                    (i)       wholly or partly (in which event the  liability of
                              Seller  shall be limited to that part) arises from
                              or relates to any actual or deemed income, profits
                              or gains earned,  received or arising on or before
                              the Execution Date; or

                    (ii)      is wholly or partly (in which event the  liability
                              of  Seller   shall  be   limited   to  that  part)
                              attributable  to any event  occurring on or before
                              the Execution Date,

                    (iii)     wholly or partly (in which event the  liability of
                              Seller  shall be limited to that part)  relates to
                              any period ending on or before the Execution Date;

                    except to the extent that the  Taxation has been paid by the
                    Company on or prior to the Completion Date.

          (b)       Notwithstanding  any  other  provisions  in this  Agreement,
                    including  (without  limitation)  Clauses  8.3  and  9,  but
                    subject  to  clause  12.5,  Seller   indemnifies  Buyer  and
                    undertakes to keep Buyer at all times fully and  effectively
                    indemnified  from and  against  any income tax or income tax
                    claim  (including  items referred to in subclause (c) of the
                    Tax  definition  insofar  as it relates to any income tax or
                    income tax claim) made against the Company which:

                    (i)       wholly or partly (in which event the  liability of
                              Seller  shall be limited to that part) arises from
                              or relates to any actual or deemed income, profits
                              or gains earned, received or arising in the period
                              from  the  Execution  Date  to  and  including  31
                              December 2001 ; or

                    (ii)      is wholly or partly (in which event the  liability
                              of  Seller   shall  be   limited   to  that  part)
                              attributable  to  any  event  occurring  from  the
                              Execution Date to and including 31 December 2001;

                    (iii)     wholly or partly (in which event the  liability of
                              Seller  shall be limited to that part)  relates to
                              the  period  from  the   Execution   Date  to  and
                              including 31 December 2001;

                    except to the  extent  that the  income tax has been paid by
                    the Company on or prior to the Completion Date.

          (c)       Seller will not be  required to meet any claim under  clause
                    12.1(a) or 12.1(b) to the extent that:

                    (i)       the Taxation would not have arisen,  or would have
                              been  reduced or  eliminated  but for a failure by
                              the Company  after the  Completion  Date to make a
                              claim  or  election  or  to  give  any  notice  or
                              consent,   the  making  or  giving  of  which  was
                              notified  by  Seller  in  writing  to  Buyer  five
                              Business  Days  prior to the  Execution  Date,  or
                              where  the  making  or  giving  of which  will not
                              adversely affect the Company is notified by Seller
                              in writing to Buyer ten Business Days prior to the
                              date the claim or  election  or notice of  consent
                              was required to be made or given;

                                       26


                    (ii)      Buyer or the Company  will receive or has received
                              a reduction  in Tax payable  after the  Completion
                              Date in relation to the matters giving rise to the
                              claim,  however only the net present  value to the
                              Company or Buyer of the  reduction  in Tax payable
                              as at the date the Tax giving rise to the claim is
                              payable shall be taken into account;

                    (iii)     the Taxation  relates to an amount of income or an
                              asset  that  was not  taken  into  account  in the
                              calculation   of  the  Purchase  Price  where  the
                              benefit of the income or asset  arising  after the
                              Effective  Date is  equal to or in  excess  of the
                              amount of the claim;

                    (iv)      any relief available to the Company in relation to
                              a period ended on or before 31 December 2001 which
                              has not been taken into account in the calculation
                              of the Purchase Price and which is able to relieve
                              or mitigate that Taxation liability;

                    (v)       it is for  any  Tax  loss  or  memorandum  account
                              balance of the Company  which is  eliminated  as a
                              result of the transfer of Shares  pursuant to this
                              Agreement;

                    (vi)      the Company or Buyer,  without the written consent
                              of Seller has made a payment (except to the extent
                              required  by law) or  admission  of  liability  in
                              respect  of a  Taxation  claim or has taken  other
                              steps  (including  failing to notify Seller) which
                              may in any way  prejudice  any  objection to it or
                              defence to that Taxation claim;

                    (vii)     the Company, without the written consent of Seller
                              after the  Completion  Date  amends or requests an
                              amendment to any return filed prior to  Completion
                              by the Company with the Inland Revenue  Department
                              or other relevant revenue authority, other than an
                              amendment required by law.

          (d)       Any  payment  Seller is  required to make in relation to any
                    claim under this clause 12.1:

                    (i)       subject  to  clause  12.1(d)(ii),  must be made at
                              least 3 Business Days before the date on which the
                              Taxation  in  respect  of  which  the  payment  is
                              required to be made is due for payment;

                    (ii)      where  the   amount   of   Taxation   is   payable
                              immediately,  is to be paid  to  Buyer  on  demand
                              being made by Buyer; and

                    (iii)     is to be made to Buyer in reduction  and refund of
                              the Purchase Price.

                    Provided however that in any case Seller may satisfy a claim
                    for an income tax liability by way of offsetting  tax losses
                    of  Seller  or its  Affiliates  with the net  income  of the
                    Company to the extent  the  requirements  of the Tax Act are
                    satisfied.

          (e)       Buyer may not make a claim  under this clause 12.1 after the
                    sooner of the following:

                    (i)       the date after which the Inland Revenue Department
                              or other relevant public body is no longer able to
                              issue an assessment  or similar  notice in respect
                              of the period or event  giving  rise to the claim;
                              and

                    (ii)      8 years after the Execution Date.

                                       27



          (f)       Seller  shall have the right to control  all  aspects of any
                    Taxation  claim  giving rise to a claim under  clause  12.1,
                    including  whether and how a Taxation  claim is disputed and
                    the  appointment  of  counsel  provided  that  Seller  shall
                    consult with the Company in respect of the decisions made by
                    Seller and will take into  account all  reasonable  concerns
                    and issues  raised by Buyer in all  action  that is taken by
                    Seller following consultation.

          (g)       For the  purposes  of any claim by Buyer  under this  clause
                    12.1,  Taxation will be deemed to be suffered or incurred by
                    or arise in respect of Buyer to the extent that  Taxation is
                    suffered  or  incurred  by  the  Company.  It  will  not  be
                    necessary  for Buyer to  establish  loss or damage to itself
                    whether by way of diminution of the Shares or otherwise, and
                    the  amount  of the  Taxation  suffered  or  incurred  by or
                    arising  in  respect  of Buyer will be deemed to be equal to
                    the Taxation suffered or incurred by the Company.

          (h)       Seller's aggregate liability under clause 12.1 is limited to
                    the net overall increased liability for Taxation incurred by
                    the Company in respect of the period prior to and  including
                    31 December  2001 (not taking into  account  non-income  tax
                    amounts in relation to the period from the Execution Date).

12.2      Refunds

          Buyer acknowledges that the Company may be entitled to receive refunds
          of Taxes for  operations  before the  Execution  Date or in respect of
          supplies  made pursuant to the EENZL  Agreement or Southern  Petroleum
          (Ohanga)  Share  Sale  Agreement  and that to the  extent  that  these
          refunds  have not been taken into account  pursuant to Clause  12.1(c)
          that  these  refunds  are for the  benefit  of  Seller  and  agrees to
          co-operate and procure the Company to co-operate with Seller to obtain
          the refunds and reimburse  refunds  obtained to Seller  forthwith upon
          receipt by Buyer or the Company.

12.3      Gross Up

          (a)       If  Seller  is  required  by New  Zealand  law to  make  any
                    deduction or withholding from any sum payable by it to Buyer
                    under clause 8.1 or 12.1; or

          (b)       Buyer is required by New  Zealand  law to  characterise  any
                    amount  received or receivable  from Seller under clause 8.1
                    or 12.1 other than as an  adjustment  to the Purchase  Price
                    and is  required  by New  Zealand law to make any payment of
                    income tax in the income  year of receipt on or in  relation
                    to such amount;

          then  the sum  payable  by  Seller  will be  increased  to the  extent
          necessary  to  ensure  that  after  Seller  has  made  the  deduction,
          withholding  or  payment,  or Buyer  has paid the  income  tax,  Buyer
          receives and retains (free of any  liability  for any such  deduction,
          withholding  or  payment) a net sum equal to the sum that Buyer  would
          have received and so retained had no such  deduction,  withholding  or
          payment been made.

12.4      Refund of Gross Up

          Where any  additional  amount is payable by Seller  under clause 12.3,
          Buyer shall  refund to Seller any payment  made under that clause 12.3
          to the extent Buyer  itself  obtains a refund,  set-off,  deduction or
          credit in respect of any deduction, withholding or payment referred to
          in clause 12.3 and the refund by Buyer shall be made within 5 Business
          days of the date on

                                       28


          which Buyer receives the benefit of that refund, set-off, deduction or
          credit in respect of the deduction, withholding or payment.

12.5      Limitation on Claims

          In the event that Buyer is entitled  to make a claim under  clause 8.1
          for a breach by Seller of the  warranties  given under clause 9.1, and
          when any such  act,  failure  or  omission  by Seller  giving  rise to
          Buyer's claim,  simultaneously or consequently  amounts to a breach of
          Seller's  indemnity under clause 12.1, then rather than being entitled
          to make further or  additional  claim against  Seller,  Buyer shall be
          entitled  to make claim  against  Seller  under  either  clause 8.1 or
          clause  12.1,  but not both,  and any such claim  made by Buyer  shall
          constitute  Buyer's  entire  claim  against  Seller  in  terms of such
          breach.

13        CONFIDENTIALITY AND ANNOUNCEMENTS

13.1      Agreed Announcements

          Subject to Clause 13.2, no Party shall, without the written consent of
          the other Party,  issue or make any public  announcement  or statement
          regarding this Agreement.

13.2      Legal Requirements

          (a)       If a Party is required to issue or make an  announcement  or
                    statement  in respect of this  Agreement  in order to comply
                    with:

                    (i)       applicable law; or

                    (ii)      the  requirements of any recognised stock exchange
                              on which the  securities  of a Party or any of its
                              Affiliates are listed;

                    then the Parties  shall agree on the form and  substance  of
                    such  announcement or statement and a copy of the same shall
                    be  furnished  to the other  Party prior to  publication  or
                    release.  Each Party agrees to use its reasonable endeavours
                    to approve the form and substance of a required announcement
                    or statement as soon as possible so that Parties are able to
                    comply with statutory and stock exchange requirements.

          (b)       If a Party is required to issue or make an  announcement  or
                    statement as  contemplated  by sub-clause  (a) and,  despite
                    using its best endeavours, has been unable to agree the form
                    and  substance of the  announcement  or  statement  with the
                    other   Party  prior  to  the  latest  time  by  which  such
                    announcement  or statement  must be made, the Party required
                    to  do so  may  then  issue  or  make  the  announcement  or
                    statement provided that:

                    (i)       the other Party is first  notified  and  furnished
                              with a copy of the announcement or statement; and

                    (ii)      to the maximum extent  possible,  the announcement
                              or statement  minimises the disclosure relating to
                              this Agreement.

13.3      Parties to Keep Confidential

          Subject  to  Clauses  13.1  and  13.2,  the  Parties  agree  that  the
          Information   and  all  information  and  documents  which  have  been
          disclosed or provided to them or any person  acting on their behalf in
          accordance with this Agreement or in the course of  communications  or
          negotiations

                                       29


          in connection  with the evaluation or sale of the Shares or any of the
          other former  Fletcher  Challenge  Energy assets,  including,  without
          limitation, this Agreement and all documents and information disclosed
          pursuant  to the  Confidentiality  Agreement  (which  information  and
          documents  are,  for the  purposes  of this  Clause  13,  deemed to be
          included in the definition of Information) or the Rimu Confidentiality
          Agreement  must be  kept  strictly  confidential,  must  not be  sold,
          traded,  published  or  otherwise  disclosed  to anyone in any  manner
          whatsoever,  or  photocopied  or reproduced in any way without  either
          Seller's or Buyer's  prior  written  consent as the case may  require,
          except as provided in Clauses 13.4 and 13.5.

13.4      Permitted Disclosure

          Buyer may disclose the  Information  without  Seller's  prior  written
          consent only to the extent such Information:

          (a)       was  already  known to  Buyer  as of the date of  disclosure
                    under the Confidentiality Agreement or this Agreement;

          (b)       is  already  in the  possession  of the  public  or  becomes
                    available  to the  public  other  than  through  the  act or
                    omission  of  Buyer  or  any   Affiliate  or  any  of  their
                    directors, employees, agents or advisers in contravention of
                    this Agreement;

          (c)       is required to be disclosed  under  applicable law, by order
                    of a court of competent  jurisdiction  or by a  governmental
                    order,  decree,  regulation  or  rule,  including,   without
                    limitation, any regulation or rule of any regulatory agency,
                    securities   commission  or  stock  exchange  on  which  the
                    securities of Buyer or its Affiliate are quoted;

          (d)       is  acquired  independently  from a third  party  whom Buyer
                    reasonably    believed   was   under   no    obligation   of
                    confidentiality to Seller related thereto; or

          (e)       is Information as defined in Clause 1.2 and all  information
                    and documents  which have been disclosed by Seller to Buyer,
                    provided Completion has occurred.

13.5      Advisers

          Prior to  Completion  Buyer is entitled to  disclose  the  Information
          without  Seller's  prior  written  consent  to such  of the  following
          persons  who have a clear need to know in order to give  effect to the
          provisions of this  Agreement  provided that the disclosure is limited
          to the extent strictly required by each such person:

          (a)       employees, officers and directors of Buyer;

          (b)       employees, officers and directors of an Affiliate;

          (c)       any professional adviser or auditor;

          (d)       any bank financing Buyer's acquisition of the Shares.

          Prior to making any such disclosure  under  sub-clause  (d),  however,
          Buyer shall obtain an undertaking of strict  confidentiality from each
          person to whom  disclosure of the  Information is to be made expressly
          conferring  the right to enforce such  undertaking  directly on Seller
          and each of the parties to the TAWN Joint Venture Operating  Agreement
          and the Commercial Contracts.

                                       30


13.6      Responsibility for Third Parties

          Buyer  is  responsible  for  ensuring  that  all  persons  to whom the
          Information  was disclosed under the  Confidentiality  Agreement or is
          disclosed under this Agreement will keep such information confidential
          and will not disclose or divulge the same to any unauthorised  persons
          and Buyer  indemnifies  Seller and its Affiliates  against any and all
          damages,  losses  or  expenses  suffered  or  incurred  as a result of
          unauthorised disclosure by such persons.

13.7      Responsibility for Affiliate

          When Buyer  discloses  the  Information  to  employees,  officers  and
          directors of a Affiliate  Buyer is  responsible  for the  adherence of
          such  employees,  officers and directors of the Affiliate to the terms
          of this  Agreement  and Buyer  indemnifies  Seller and its  Affiliates
          against any and all damages,  losses or expenses  suffered or incurred
          as a result of unauthorised disclosure by such persons.

13.8      Termination

          If this  Agreement is terminated or the Shares are not  transferred in
          accordance with Clause 7 or the Shares are  re-transferred  to Seller,
          Buyer  shall  cease  using the  Information  and Seller may demand the
          return thereof upon giving  written  notice to Buyer.  Upon receipt of
          such notice,  Buyer shall as soon as  practicable  and within a period
          not exceeding 30 days from the date of receipt of such notice:

          (a)       retrieve all  Information  disseminated to persons and other
                    third parties pursuant to Clause 13.5;

          (b)       return to Seller all of the Information disclosed;

          (c)       destroy  or return,  as  directed  by Seller,  to Seller all
                    copies and  reproductions  of the Information  made by Buyer
                    and any persons and other third parties  pursuant to Clauses
                    13.5; and

          (d)       purge all computer data banks of the Information.

13.9      Survival of Clause 13

                    The   provisions   of  this  Clause  13  will   survive  any
                    termination of this Agreement  until 6 years from 1 May 2001
                    or from the date of Completion of this Agreement,  whichever
                    first occurs provided that any  information  relating to the
                    other former Fletcher Challenge Energy assets shall continue
                    to be governed by the Confidentiality  Agreement or the Rimu
                    Confidentiality Agreement as the case may require.

14        GENERAL

14.1      Notices

          Any notice or other communication,  including, but not limited to, any
          request, demand, consent or approval, to or by a Party:

          (a)       must be legible and in English addressed as shown below:

                                       31


                  (i)      if to Seller or Seller Guarantor:

                           Address:         c/o Southern Petroleum No Liability
                                            3 Queens Wharf
                                            Wellington
                                            New Zealand

                           Attention:       David Llewellyn/Alan Bewley

                           Facsimile:       (04) 463 4039

                  (ii)     if to Buyer or Buyer Guarantor:

                           Address:         113-119 The Terrace
                                            Level 19
                                            PWC Tower
                                            Wellington

                           Attention:       James P Mitchell

                           Facsimile:       (04) 472 7401

                    or as specified to the sender by any Party by notice;

          (b)       must be signed by a Director or duly authorised signatory;

          (c)       is regarded as being given by the sender and received by the
                    addressee:

                    (i)       if by  delivery  in  person - a  notice  delivered
                              personally  or by  courier  is deemed to have been
                              received by the Party to which it is  addressed at
                              the time and on the date that the notice is handed
                              to  an  authorised   officer,   representative  or
                              employee of the Party to which it is addressed;

                    (ii)      if by post - a notice sent by registered  mail, in
                              the absence of proof to the contrary, is deemed to
                              have  been  received  by the  Party to which it is
                              sent at the time  when the  letter is shown by the
                              return  receipt  to have  been  delivered  to that
                              Party's address;

                    (iii)     if  by   facsimile   transmission   -  subject  to
                              paragraph  (e),  in the  absence  of  proof to the
                              contrary,   on  the  date  of   despatch   if  the
                              recipient's  acknowledgment  of receipt appears on
                              the sender's copy of the notice or on the activity
                              record  printout of the sender's  machine,  or the
                              activity record  printout of the sender's  machine
                              shows a successful transmission to the recipient's
                              facsimile  machine  on the date  indicated  on the
                              printout,  but if the  time of  despatch  is after
                              4:00pm  in the  place to which  the  facsimile  is
                              sent,  it is deemed to have been  received  at the
                              commencement  of business on the next business day
                              in the place to which it is sent;

          (d)       for the  purposes  of this  Clause,  if the  date of  deemed
                    receipt is a Saturday or Sunday or a public or bank  holiday
                    in the place of  receipt,  the notice is deemed to have been
                    received at the  commencement  of the next  Business  Day in
                    that place; and

                                       32


          (e)       in  the  case  of   indecipherable   facsimiles   which  are
                    identifiable  as having been sent by a Party,  the notice is
                    deemed not to have been  received  by the  addressee  if the
                    addressee  notifies the sender within twenty-four (24) hours
                    after  receipt that the  facsimile has been received in that
                    form and despatches a copy of the facsimile  received to the
                    sender.

14.2      Governing Law and Jurisdiction

          (a)       This Agreement is governed by the laws in force from time to
                    time in New Zealand.

          (b)       Each  Party   irrevocably   submits  to  the   non-exclusive
                    jurisdiction of the courts of New Zealand.

14.3      Arbitration

          (a)       If a  dispute  arises  between  the  Parties  out  of  or in
                    connection  with  any  matter  set  out  in  this  Agreement
                    (including  any  dispute as to its  existence  or  validity)
                    ("the  Dispute")  any Party may give  written  notice to the
                    others stating the subject matter and details of the Dispute
                    and requiring  that the Dispute be referred to  arbitration.
                    The arbitrator shall be appointed by the Parties, or failing
                    agreement  within ten Business Days after, and exclusive of,
                    the date of service of the written notice shall be appointed
                    at the request  either Party by the  president  for the time
                    being of the  Arbitrators'  and Mediators'  Institute of New
                    Zealand  or his or her  nominee.  The  arbitration  shall be
                    conducted as soon as possible, at Wellington,  in accordance
                    with the provisions of the Arbitration Act 1996.

          (b)       The award of the arbitrator  shall be an award with reasons,
                    which reasons shall form part of the award. The award of the
                    arbitrator shall be final and binding on the Parties and, to
                    the extent that it is lawful to do so, the Parties waive any
                    right of appeal or review.

          (c)       The  Parties  shall bear their own costs and an equal  share
                    (as  between  Buyer and Seller) of the costs of the award in
                    relation   to  the   arbitration,   unless  the   arbitrator
                    determines  that a Party shall bear some  proportion  of, or
                    all of, the costs of any other Party because of impropriety,
                    lack of cooperation or unreasonable conduct by that Party.

14.4      Waivers

          No failure to exercise and no delay in exercising any right,  power or
          remedy  under  this  Agreement  will  operate as a waiver nor will any
          single or partial exercise of any right,  power or remedy preclude any
          other or further exercise of that or any other right, power or remedy.

14.5      Variation

          A  variation  of any term of this  Agreement  must be in  writing  and
          signed by each Party.

14.6      Assignment

          No  Party  may  assign  its  rights  under  this  Agreement  prior  to
          Completion and settlement of all Accounts herein. This Agreement binds
          each Party and its successors.

                                       33



14.7      Entire Agreement

          This Agreement and the  Confidentiality  Agreement embodies the entire
          agreement  between the Parties with  respect to the subject  matter of
          this Agreement and the Parties  acknowledge  that these two agreements
          supersede   and   cancel   any   prior   agreement,   arrangement   or
          understanding,  whether  formal or  informal,  or  whether  express or
          implied  with respect to the subject  matter or any  provision of this
          Agreement.

14.8      Further Actions

          Following the  Completion  Date, at the request of Buyer,  Seller will
          deliver any further  instrument  as  reasonably  required and take all
          other  reasonable  actions as may be  necessary  to vest in Buyer good
          title to the  Shares  and to give  effect  to the  provisions  of this
          Agreement.

14.9      Privity

          The  provisions of this Agreement are also for the benefit of, and are
          intended to be  enforceable  by,  Affiliates  of Seller  against Buyer
          under the Contracts (Privity) Act 1982.

15.       SELLER GUARANTOR

15.1      Guarantee

          In consideration of Buyer entering into this Agreement and each of the
          Documents at the request of Seller Guarntor, Seller Guarantor:

          (a)       unconditionally  and  irrevocably  guarantees  to  Buyer  on
                    demand the due and punctual performance by Seller of all its
                    obligations  under this Agreement and each of the Documents;
                    and

          (b)       separately  indemnifies  Buyer  against  any claim,  action,
                    damages, loss, expense, liability or obligation which may be
                    incurred  or  sustained  by  Buyer  in  connection  with any
                    default  or  delay  by  Seller  in  the  due  and   punctual
                    performance of any of its  obligations  under this Agreement
                    and each of the Documents.

15.2      Liability unaffected by other events

          The liability of Seller Guarantor under this Clause 15 is not affected
          by any act,  omission or thing which, but for this Clause 15, might in
          any way operate to release or otherwise  exonerate or discharge Seller
          Guarantor from any of its obligations  including  without  limitation,
          the entry into any of the  Documents  in a form not approved by Seller
          Guarantor, the grant to Seller or any other person of any time, waiver
          or other  indulgence,  or the  discharge  or  release of Seller or any
          other person from any obligation.

15.3      Continuing guarantee and indemnity

          The guarantee and indemnity constituted by this Clause 15:

          (a)       extends to cover Seller's  obligations  under this Agreement
                    and each of the Documents,  all as may be amended, varied or
                    replaced,  whether  with or  without  the  consent of Seller
                    Guarantor; and

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          (b)       is  a  continuing   guarantee  and  indemnity  and,  despite
                    Completion,  re-transfer of the Shares to Buyer, transfer of
                    any  part  or all of  the  Shares  or  termination  of  this
                    Agreement,  remains  in full force and effect for so long as
                    Seller or any successor or permitted  assignee of Seller has
                    any actual or contingent liability or obligation to Buyer or
                    its Affiliates, sucessors or assigns under this Agreement.

15.4      Warranties by Seller Guarantor

          Seller  Guarantor  makes the warranties set forth in Schedule 5 (as if
          each reference therein to Buyer were to Seller Guarantor) in favour of
          Buyer as at the Execution Date and as at the Completion Date.

16.       NO CONFLICT

          In each and every event where:

          (a)       there is a conflict between the provisions of this Agreement
                    and the  provisions  of the  EENZL  Agreement;  or

          (b)       this Agreement  does not contain a provision  dealing with a
                    specific point,

          the  provisions  of this  Agreement  shall,  in each and every  event,
          prevail to the intent that as among the Parties and their  Affiliates,
          the rights and  obligations  in respect of the EENZL  Assets  shall be
          deemed to be governed by the  provisions of this Agreement and not the
          EENZL Agreement.


THE PARTIES HAVE EXECUTED THIS AGREEMENT:

EXECUTED  UNDER THE NAME AND SEAL OF BY SOUTHERN  PETROLEUM  NO LIABILITY by its
undersigned  Attorney who has not received any notice of revocation of the Power
of Attorney under which this Instrument is signed:


/s/ D.J. Llewellyn                               /s/ A.L. Bewley
- -------------------------------                  -------------------------------
Signature of Attorney                            Signature of Witness


David James Llewellyn                            Alan Leonard Bewley
- -------------------------------                  -------------------------------
Name of Attorney                                 Name of Witness



EXECUTED  UNDER THE NAME AND SEAL OF BY ENERGY  EXPLORATION  NZ  LIMITED  by its
undersigned  Attorney who has not received any notice of revocation of the Power
of Attorney under which this Instrument is signed:

/s/ D.J. Llewellyn                               /s/ A.L. Bewley
- -------------------------------                  -------------------------------






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Signature of Attorney                            Signature of Witness


David James Llewellyn                            Alan Leonard Bewley
- -------------------------------                  -------------------------------
Name of Attorney                                 Name of Witness


EXECUTED BY SWIFT ENERGY NEW ZEALAND LIMITED by:



/s/ Don Morgan                                   /s/ James P. Mitchell
- ------------------------------                   -------------------------------
Signature of Director                            Signature of Director

Don Morgan                                       James P. Mitchell
- ------------------------------                   -------------------------------
Name of Director                                 Name of Director


EXECUTED BY SWIFT ENERGY COMPANY by:

/s/ Terry E. Swift
- -------------------------------
Signature of Director


Terry E. Swift
- -------------------------------
Name of Director




EXECUTED BY ENERGY  EXPLORATION NZ LIMITED by its  undersigned  Attorney who has
not received any notice of revocation of the Power of Attorney  under which this
Instrument is signed.

/s/ D.J. Llewellyn                               /s/ A.L. Bewley
- -------------------------------                  -------------------------------
Signature of Attorney                            Signature of Witness


David James Llewellyn                            Alan Leonard Bewley
- -------------------------------                  -------------------------------
Name of Attorney                                 Name of Witness









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