AMERICAN INTERNATIONAL PETROLEUM CORP /NV/
8-K, 1997-03-12
LESSORS OF REAL PROPERTY, NEC
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                    FORM 8-K

                                 CURRENT REPORT
                       PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event Reported)  February 25, 1997
                                                  -----------------

                  AMERICAN INTERNATIONAL PETROLEUM CORPORATION
      -------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

     Nevada                     No. 0-14905                  13-3130236
- -----------------             -------------               -------------
(State or other                (Commission                (I.R.S. Employer
jurisdiction of                File Number)               Identification No.)
incorporation
or organization)

444 MADISON AVENUE, SUITE 3203, NEW YORK, NEW YORK      10022
- --------------------------------------------------      -----
  (Address of principal executive offices)              (Zip Code)

                                  (212)688-3333
      -------------------------------------------------------------------
              (Registrant's telephone number, including area code)


      -------------------------------------------------------------------
           (Former name or former address if changed from last report)

Item 2.           Acquisition or Disposition of Assets

         On  February  25,  1997,  the  Registrant  sold all of the  issued  and
         outstanding  shares of common stock of its  wholly-owned  subsidiaries,
         American International  Petroleum Corporation of Colombia ("AIPCC") and
         Pan  American   International   Petroleum  Corporation  ("PAIPC")  (the
         "Purchased  Shares")  in  an  arms  length  transaction  to  Mercantile
         International Petroleum Inc. ("MIP").

         (i)      The  assets  of  AIPCC  and  PAIPC  consisted  of oil  and gas
                  properties  and  equipment in South  America with an aggregate
                  net book value of approximately $17.9 million.

         (ii)     The total  aggregate  purchase  price  payable  by MIP for the
                  Purchased  Shares  was  valued  at up to  approximately  $20.2
                  million, determined as follows:

                  (a)      Cash payments of approximately $3.9 million, of which
                           approximately  $2.2  million was paid  simultaneously
                           with the closing to retire  Registrant's  12% Secured
                           Debentures due December 31, 1997,  which were secured
                           by the Registrant's shares of AIPCC.
                  (b)      Assumption  of AIPCC and PAIPC  debt of an aggregate
                           amount of $634,000.
                  (c)      4,384,375  shares of MIP Common  Stock with a trading
                           price of approximately  $2.00 on the date the parties
                           agreed in principle to the sale.
                  (d)      A two-year $3 million 5% exchangeable subordinated 
                           debenture of AIPCC, exchangeable  into  shares of 
                           common  stock of MIP on the basis of $3  principal  
                           amount of such  debenture for one share of MIP on 
                           or after  February  25, 1998; or Registrant may 
                           demand payment on that date of $1.5 million of the 
                           principal balance thereof in cash.
                  (e)      A $1.4  million  "performance  earn-out"  from future
                           production  in  Colombia,  plus  interest  at 8%  per
                           annum.
                  (f)      Up to $2.5 million  (reduced  proportionately  to the
                           extent  the Net  Operating  Loss  and  Deferred  Cost
                           Deductions accrued by AIPCC through December 31, 1996
                           ("Accrued Tax Benefit  Deductions")  is less than $50
                           million but more than $20  million)  payable from 25%
                           of AIPCC's future tax savings  related to any Accrued
                           Tax Benefit  Deductions  available to AIPCC on future
                           tax filings in Colombia.

         (iii)    As a  result  of this  disposition,  the  Registrant  now owns
                  approximately  11.3% of MIP's  outstanding  share capital on a
                  fully-diluted basis (47,720,867 shares). MIP is traded in U.S.
                  Dollars on the Toronto


<PAGE>


                  Stock Exchange  under the symbol MPT.U.  On March 6, 1997, the
                  closing price of MIP's common stock was $1.95 per share.

         (iv)     The  Registrant  intends  to  utilize  the  proceeds  to repay
                  certain debts,  expand its refinery and for general  corporate
                  use.

Item 7.           Financial Statements, Pro-forma Financial Information and 
                  Exhibits

         Exhibits:

         Exhibit No.                                       Description
         -----------                                       -----------

         99.1                       Share Purchase  Agreement dated February 25,
                                    1997, among the Registrant, AIPCC, PAIPC and
                                    MIP.

         99.2                       $3   million  5%   exchangeable   debenture,
                                    granted  by  AIPCC  to the  Registrant,  due
                                    February 25, 1999.

         99.3                       Pledge  Agreement  dated  February  25, 1997
                                    among  the  Registrant,  MIP  and  MG  Trade
                                    Finance Corp.


                                   SIGNATURES


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
the  Registrant  has duly  caused  this report to be signed on its behalf by the
undersigned hereunto duly authorized.


Date:    March 12, 1997


                                AMERICAN INTERNATIONAL
                                PETROLEUM CORPORATION



                                By: /s/ Denis J. Fitzpatrick
                                   --------------------------------
                                         Denis J. Fitzpatrick
                                         Chief Financial Officer


                                  EXHIBIT INDEX


EXHIBIT
NUMBER                              DESCRIPTION
- ------                              -----------

99.1                                Share Purchase  Agreement dated February 25,
                                    1997, among the Registrant, AIPCC, PAIPC and
                                    MIP.

99.2                                $3   million  5%   exchangeable   debenture,
                                    granted  by  AIPCC  to the  Registrant,  due
                                    February 25, 1999.

99.3                                Pledge  Agreement  dated  February  25, 1997
                                    among  the  Registrant,  MIP  and  MG  Trade
                                    Finance Corp.





                                                                    EXHIBIT 99.1
'








                  AMERICAN INTERNATIONAL PETROLEUM CORPORATION


                                       AND


                        AMERICAN INTERNATIONAL PETROLEUM
                             CORPORATION OF COLOMBIA


                                       AND


                PAN AMERICAN INTERNATIONAL PETROLEUM CORPORATION


                                       AND


                     MERCANTILE INTERNATIONAL PETROLEUM INC.






- -------------------------------------------------------------------------------



                            SHARE PURCHASE AGREEMENT


- -------------------------------------------------------------------------------





                      Dated this 25th day of February, 1997




<PAGE>



                            SHARE PURCHASE AGREEMENT

                                TABLE OF CONTENTS

<TABLE>
<S> <C>
                                                                                                                Page

                                    ARTICLE 1
                                 INTERPRETATION

1.1               Defined Terms.................................................................................  2
1.2               Gender and Number............................................................................. 11
1.3               Headings, Etc................................................................................. 11
1.4               Currency...................................................................................... 11
1.5               Severability.................................................................................. 11
1.6               Entire Agreement.............................................................................. 12
1.7               Amendments.................................................................................... 12
1.8               Waiver........................................................................................ 12
1.9               Governing Law................................................................................. 12
1.10              Inclusion..................................................................................... 12
1.11              Accounting Terms.............................................................................. 12
1.12              Knowledge..................................................................................... 12
1.13              Incorporation of Schedules.................................................................... 12


                                    ARTICLE 2
                       PURCHASED SHARES AND PURCHASE PRICE

2.1               Purchase and Sale............................................................................. 13
2.2               Purchase Price................................................................................ 14
2.3               Calculation of Purchase Price................................................................. 15
2.4               Closing Balance Sheet and .................................................................... 16
2.5               Payment of Taxes and Registration Charges on Transfer......................................... 17
2.6               Performance Earn-Out Payment.................................................................. 17
2.7               Tax Pools..................................................................................... 19

                                    ARTICLE 3
                  REPRESENTATIONS AND WARRANTIES OF THE VENDOR

3.1               Representations and Warranties of the Vendor.................................................. 19
3.2               Information Known by Purchaser................................................................ 38

                                    ARTICLE 4
                 REPRESENTATIONS AND WARRANTIES OF THE PURCHASER

4.1               Representations and Warranties of the Purchaser............................................... 38

                                    ARTICLE 5
                                     CLOSING

5.1               Date, Time and Place of Closing............................................................... 41

                                      - i -
                                                                                      SE_TOR_FS02\347652.7

<PAGE>


                                                                                                               Page

5.2               Closing Procedures............................................................................ 41

                                    ARTICLE 6
                   SURVIVAL OF REPRESENTATIONS AND WARRANTIES;
                             INDEMNITIES AND SET-OFF

6.1               Survival of Representations and Warranties.................................................... 44
6.2               Indemnification in Favour of the Purchaser.................................................... 44
6.3               Indemnification in Favour of the Vendor....................................................... 45
6.4               Indemnification Proceedings................................................................... 45
6.5               Limitation.................................................................................... 46
6.6               Exclusion of Other Remedies................................................................... 47
6.7               Right of Set-Off.............................................................................. 47
6.8               Tax Audit..................................................................................... 47
6.9               Compliance with Environmental Law............................................................. 48

                                    ARTICLE 7
                             POST-CLOSING COVENANTS

7.1               Access to Books and Records................................................................... 48
7.2               Further Assurances............................................................................ 49
7.3               Cooperation of the Vendor..................................................................... 49
7.4               Common Shares................................................................................. 49
7.5               NASDAQ........................................................................................ 50
7.6               Employment.................................................................................... 50
7.7               Rio Bravo..................................................................................... 50
7.8               Tax Election.................................................................................. 50
7.9               Continued Cooperation......................................................................... 51
7.10              Continued Listing............................................................................. 51
7.11              Guarantee..................................................................................... 51
7.12              Opinion for Transfer Agent.................................................................... 51
7.13              No Contrary Instructions...................................................................... 51
7.14              Legend........................................................................................ 51
7.15              Toronto Stock Exchange........................................................................ 51
7.16              Name Change................................................................................... 51
7.17              Accounting.................................................................................... 52
7.18              Transfer of Colombian Debentures.............................................................. 52
7.19              Report........................................................................................ 52
7.20              Right of First Refusal........................................................................ 52

                                    ARTICLE 8
                                   ARBITRATION

8.1               Best Endeavours to Settle Disputes............................................................ 52
8.2               Arbitration................................................................................... 52


                                     - ii -
                                                                                      SE_TOR_FS02\347652.7

<PAGE>


                                                                                                               Page


                                    ARTICLE 9
                                  MISCELLANEOUS

9.1               Notices....................................................................................... 53
9.2               Publicity..................................................................................... 54
9.3               Time of the Essence........................................................................... 54
9.4               Brokers....................................................................................... 55
9.5               Third Party Beneficiaries..................................................................... 55
9.6               Expenses...................................................................................... 55
9.7               Enurement..................................................................................... 55
9.8               Counterparts.................................................................................. 55
9.9               Joint and Several Liability................................................................... 55
9.10              Assignment.................................................................................... 55
9.11              Non-Merger.................................................................................... 55
</TABLE>




<PAGE>

                            SHARE PURCHASE AGREEMENT



         MEMORANDUM  OF AGREEMENT  made the 25th day of  February,  1997 between
AMERICAN INTERNATIONAL PETROLEUM CORPORATION,  a corporation  incorporated under
the laws of Nevada (the "Vendor"),  AMERICAN INTERNATIONAL PETROLEUM CORPORATION
OF  COLOMBIA,  a  corporation  incorporated  under  the  laws of  Oklahoma  (the
"Colombian  Subsidiary"),  PAN AMERICAN INTERNATIONAL  PETROLEUM CORPORATION,  a
corporation incorporated under the laws of Nevada (the "Peruvian Subsidiary" and
together with the  Colombian  Subsidiary,  the  "Corporations")  and  MERCANTILE
INTERNATIONAL  PETROLEUM INC., a corporation  incorporated under the laws of the
Cayman Islands (the "Purchaser") witnesses that;

         WHEREAS:

(a)      an agreement in principle (the  "Agreement in  Principle")  was entered
         into  between the Vendor and the  Purchaser on January 29, 1997 for the
         purchase by the  Purchaser of the Peruvian and  Colombian  upstream oil
         and gas  operations of the Vendor,  and all properties and other assets
         relating thereto;

(b)      the Colombian  Subsidiary carries on the business consisting of oil and
         gas operations in the Magdalena Valley of Colombia;

(c)      the Peruvian  Subsidiary carries on the business  consisting of oil and
         gas operations in the Talara Basin in Peru;

(d)      each of the  Corporations  is a direct  wholly-owned  subsidiary of the
         Vendor; and

(e)      the Vendor has agreed to sell to the  Purchaser  and the  Purchaser has
         agreed  to  purchase  from  the  Vendor,  each  in  reliance  upon  the
         representations and warranties  contained herein, all of the issued and
         outstanding  shares in the capital of the  Corporations,  in accordance
         with the terms of this Agreement.

         NOW  THEREFORE,  in  consideration  of  the  premises  and  the  mutual
agreements  contained in this  Agreement and other valuable  consideration  (the
receipt  and  adequacy  of  this  consideration  by  each  of  the  Parties  are
acknowledged), the Parties covenant and agree as follows:




<PAGE>


                                                     - 2 -

                                    ARTICLE 1

                                 INTERPRETATION

1.1 Defined Terms. As used in this Agreement, including the recitals hereto, the
following terms have the following meanings:

         "Accounts  Receivable" means all accounts receivable,  notes receivable
and other  current  debts due or  accruing  due to each of the  Corporations  in
connection with the Business;

         "Adjusted Working Capital" of each of the Corporations means the amount
by which the  aggregate  of the total  current  assets  of the  Corporations  as
reflected on the Closing  Balance  Sheet exceeds the lesser of the (i) aggregate
of the liabilities (except for deferred taxes and the Colombian Debenture);  and
(ii)  $2,600,000,  relating to the  Corporations as at the respective  valuation
date;

         "Adjustment Amount" has the meaning ascribed in Subsection 2.4(e);

         "Affiliate"  shall  have  the  meaning  set out in the  Securities  Act
(Ontario);

         "Agreement"  means this share purchase  agreement and all schedules and
instruments  in  amendment  or  confirmation  of  it;  "hereof",   "hereto"  and
"hereunder" and similar  expressions mean and refer to this Agreement and not to
any particular  Article,  Section,  Subsection or other subdivision;  "Article",
"Section",  "Subsection"  or other  subdivision of this Agreement  followed by a
number means and refers to the specified Article,  Section,  Subsection or other
subdivision of this Agreement;

         "AIPC Debentures" means the 12% Secured Debentures of the Vendor;

         "Ancillary  Agreements"  means all agreements,  certificates  and other
instruments  delivered  or given  pursuant  to this  Agreement;  and  "Ancillary
Agreement" means any one of such agreements, certificates or other instruments;

         "Assets"  means all  property and assets of the  Corporations  of every
kind and wheresoever situate, including (i) all right, title and interest of the
Corporations  in and to the Leases and any other  Contracts in Colombia and Peru
(including  any  working  or other  interest  in  Lands);  (ii)  all  machinery,
equipment, jigs, drills, dies, tools, handling equipment, furniture, furnishings
and  accessories and supplies of all kinds including those described in Schedule
4; (iii) all  trucks,  cars and other  vehicles  including  those  described  in
Schedule  5; (iv) the  Inventories;  (v) all  Accounts  Receivable  and the full
benefit of all security for the Accounts  Receivable;  (vi) all prepaid expenses
of the Business; (vii) the leasehold interest of the Vendor in and to the Leased
Properties  and all right,  title and  interest of the Vendor in and benefits of
the Vendor to and under the Leases; (viii) the Intellectual Properties; (ix) the
Books and Records and the Corporate  Records;  (x) the goodwill of the Business,
including the exclusive right of each of the  Corporations,  (A) to carry on the
Business from and after the Time of Closing, and (B) to use any words indicating
that the Business is so carried on,  including all of the  Corporations'  right,
title  and  interest  in and  to the  names  "American  International  Petroleum
Corporation of



<PAGE>


                                                     - 3 -

Colombia" and "Pan American International Petroleum Corporation",  respectively,
or any  variation  thereof,  as part of the  name of or in  connection  with the
Business or any part  thereof  carried on or to be carried on by the  Purchaser;
(xi) the Owned  Properties;  and (xii)  any  right the  Vendor or the  Colombian
Subsidiary  may have to the area  known as "Bunde"  in the  restrictive  area of
Block C under the Puli Association Contract;

         "Authorization"  means, with respect to any Person,  any authorization,
permission,  order, permit, approval, grant, licence, consent, right, franchise,
privilege,  certificate,   judgment,  writ,  injunction,  award,  determination,
direction,  decree,  or by-law,  rule or regulation of any  Governmental  Entity
having jurisdiction over such Person;

         "Benefit  Plans"  means all  employee  benefit  plans  relating  to the
employees of the Corporations,  including profit sharing, deferred compensation,
phantom stock option, stock option, employee stock purchase,  share compensation
arrangement, bonus, retirement, health or insurance plans (in each case, oral or
written);

         "Books and Records"  means all  technical,  industrial,  business,  and
financial and accounting records, financial books and records of account, books,
data,  reports,  files,  lists,  drawings,  plans,  logs,  briefs,  customer and
supplier lists, manuals, deeds, certificates, contracts, surveys, title opinions
or any other  documentation  and information in any form  whatsoever  (including
written,  printed,  electronic  or  computer  printout  form)  relating  to  the
Business;

         "Branches"  means the registered,  legal corporate  branches of each of
the  Corporations,  as applicable,  being in Peru,  "Pan American  International
Petroleum Corporation,  Peruvian Branch" and in Colombia "American International
Petroleum  Corporation  of  Colombia"  and  "Branch"  shall mean any one of such
Branches;

         "Buildings  and  Fixtures"  means  all  plant,  buildings,  structures,
erections,  improvements,  appurtenances and fixtures (including fixed machinery
and fixed equipment)  situate on the Owned Properties or the Leased  Properties,
or both as the context requires;

         "Business"  means the business  presently and heretofore  carried on by
the  Corporations  consisting  of oil  and  gas  operations  in  Latin  America,
specifically,  in the case of the Colombian Subsidiary,  in the Magdalena Valley
in Colombia and, in the case of the Peruvian Subsidiary,  in the Talara Basin in
Peru, and all properties and other assets relating thereto;

         "Business Day" means any day of the year, other than a Saturday, Sunday
or any day on which banks are required or  authorized  to be closed in New York,
New York;

         "Capital Expenditures" means any and all direct capital expenditures as
determined  in  accordance  with COPAS  Guidelines  incurred by the Purchaser in
connection with the drilling of Oil and Gas Wells on the Colombian Properties;

         "Chicoral  Formation" means a geological  formation known as "Chicoral"
which has been shown to exist on certain Lands described as "Toqui-Toqui"  which
are subject to the Puli Association Contract;




<PAGE>


                                                     - 4 -

         "Claim" means any claim of any nature whatsoever, including any demand,
liability,   obligation,  debt,  action,  cause  of  action,  suit,  proceeding,
judgment, award, assessment and reassessment;

         "Closing"  means the completion of the transaction of purchase and sale
of the  Purchased  Shares  contemplated  in this  Agreement  which  shall  occur
immediately following the signing of this Agreement;

         "Closing Balance Sheet" has the meaning ascribed in Subsection 2.4(d);

         "Closing Date" means the date hereof;

         "Collective  Agreements"  means all collective  agreements  between the
Corporations and the various unions, as listed in Schedule 14;

         "Colombian  Debenture"  means  the  $3,000,000  principal  amount of 5%
subordinated  debenture of the Colombian  Subsidiary which may be exchanged into
1,000,000 common shares in the capital of the Purchaser;

         "Colombian  Properties"  means those certain areas in Colombia known as
the  "ToquiToqui"  property  and the  "Puli"  property  in which  the  Colombian
Subsidiary has certain legal and/or  equitable  interests  pursuant to the "Puli
Association Contract", which interests in such areas, together with the Accounts
Receivable of the Colombian Subsidiary, comprise substantially all of the assets
of the Colombian Subsidiary;

         "Colombian   Subsidiary"   means   American   International   Petroleum
Corporation of Colombia, a corporation existing under the laws of Oklahoma,  and
includes its Branch;

         "Colombian Tax Authority" has the meaning ascribed in Section 2.7;

         "Completed"  means, with respect to an Oil and Gas Well drilled, a well
which is  subsequently  perforated  and  equipped  for the purpose of oil and/or
natural gas production;

         "Common  Shares"  means,  collectively,  the MIP  Shares and any common
shares in the capital of the  Purchaser  issued upon any exchange of all or part
of the Colombian Debenture;

         "Consents"  means the consents of  contracting  parties to any material
Contract and of governments or Governmental Entities to the change in control of
either of the Corporations  contemplated in this Agreement,  and "Consent" means
any one of such Consents;

         "Contracts"  means  all  material  contracts  to  which  either  of the
Corporations  are a party including all material  contracts,  leases of personal
property,  licenses,  undertakings,  engagements  or  commitments of any nature,
written or oral, to which either of the  Corporations  is entitled in connection
with its Business,  including; (a) material unfilled purchase orders received by
either of the  Corporations;  (b) material forward  commitments by either of the
Corporations  for supplies or materials  entered into the ordinary course of the
Business; (c) the Contracts listed in Schedule



<PAGE>


                                                     - 5 -

6; (d) the Leases  listed in  Schedule 6; (e) the leases in respect of the Lease
Properties listed in Schedule 8;

         "COPAS  Guidelines"  means the guidelines and accounting  procedures of
the Council of Petroleum Accountants Society;

         "Corporations"  means each of the Colombian Subsidiary and the Peruvian
Subsidiary;

         "Corporate  Records" means the corporate  records of the  Corporations,
including  (i) all  articles  or  similar  constating  documents,  by-laws,  any
unanimous  shareholders  agreements and any amendments thereto; (ii) all minutes
of  meetings  and  resolutions  of  shareholders,  directors  and any  committee
thereof;  and (iii) the  share  certificate  books,  register  of  shareholders,
register of transfers and register of directors;

         "Dealing" means any past or present activity,  event or circumstance in
respect of a Hazardous Substance,  including using,  generating,  manufacturing,
refining, treating,  transporting,  storing, handling,  labelling,  documenting,
recycling, disposing of, depositing,  transferring,  producing or processing the
Hazardous Substance;

         "Draft Closing  Balance  Sheet" has the meaning  ascribed in Subsection
2.4(a);

         "Ecopetrol"  means  Empresa  Colombiana  de  Petroleos,  the  Colombian
government national oil company;

         "Effective Time" means 12:01 a.m. on the Closing Date (New York time);

         "Encumbrances" means any liens, charges,  mortgages,  pledges, security
interests,  claims, defects of title, restrictions and any other rights of third
parties relating to any property, including rights of set-off and voting trusts,
and other encumbrances of any kind;

         "Environment"  means, air, land and water (including without limitation
navigable waters,  waters of the contiguous zone, ocean waters,  surface waters,
ground water,  drinking water supply, land surface,  subsurface strata,  ambient
air, both inside and outside of buildings  and  structures),  plant,  animal and
human life and all other natural resources;

         "Environmental   Laws"  means  all  applicable  Laws  relating  to  the
protection of the Environment and to health and safety matters;

         "Environmental  Claims"  means all  claims,  losses,  costs,  expenses,
fines,  penalties,  payments and/or damages,  including without limitation,  all
reasonable solicitor fees on a solicitor and client basis,  relating to, arising
out of,  resulting  from or in any way connected  with the Release in, on, over,
upon or from the Lands of any Hazardous Substance, including without limitation,
all costs and expenses of any  Remediation  Action or  restoration  of the Lands
and/or any  property  adjoining  or in the  vicinity  of the Lands  required  or
mandated by Environmental Law;




<PAGE>


                                                     - 6 -

         "Environmental  Permits"  means all permits,  certificates,  approvals,
registrations  and  licences  issued  or  issuable  by any  Governmental  Entity
pursuant to any Environmental Law;

         "ERISA" means the Employee  Retirement  Income Security Act of 1974, as
amended and all regulations promulgated thereunder;

         "Farm-Out" means, with respect to any licence, association or any other
type of joint venture or operating agreement whatsoever,  the effect of selling,
assigning or sub-contracting certain working interests or drilling,  completing,
operational and/or production duties,  responsibilities or obligations  pursuant
to such  agreements;  and the term  "Farming-Out"  shall have the  corresponding
meaning;

         "Financial  Statements"  means,  collectively,  the  unaudited  balance
sheets of each of the  Corporations  for the fiscal  years  ending  December 31,
1996, and the accompanying  statements of income,  retained earnings and changes
in  financial  position  of each of the  Corporations,  together  with  the same
financial  information of each of the  Corporations  for the fiscal years ending
December 31, 1995 and December  31,  1994,  provided on an audited  basis in the
case of the Colombian Subsidiary,  as reported upon by Price Waterhouse,  and on
an unaudited  basis in the case of the Peruvian  Subsidiary,  for the years then
ended and all notes thereto;

         "GMP" means Grana Montero Petrolera, a corporation operating in Peru;

         "Governmental Entity" means (i) any multinational, federal, provincial,
state,  municipal,  local or other  governmental  or public  department,  court,
commission, board, bureau, agency or instrumentality,  domestic or foreign; (ii)
any subdivision, agent, commission, board, or authority of any of the foregoing;
or (iii) any  quasi-governmental  or private  body  exercising  any  regulatory,
expropriation  or  taxing  authority  under  or for  the  account  of any of the
foregoing;

         "Government  List" means a public list  maintained by any  Governmental
Entity  of sites  identified  for  investigation  or  clean-up  pursuant  to any
Environmental Law;

         "Hazardous  Substance"  means  any  contaminant,  pollutant,  dangerous
substance,  noxious substance,  toxic substance,  hazardous waste,  flammable or
explosive material,  radio-active  material,  urea formaldehyde foam insulation,
asbestos,  polychlorinated  biphenyls  ("PCB's"),  crude  oil and  natural  gas,
including any substances or materials resulting from, directly or indirectly, an
oil spill or natural gas fires,  and any other  substance or material  declared,
defined or deemed to be regulated or controlled pursuant to Environmental Law or
other applicable Laws;

         "Intercompany  Debt"  means  amounts  owing from a  Corporation  to the
Vendor;

         "Interim Balance Sheet Date" means January 31, 1997;

         "Interim  Period"  means the period  between  the close of  business on
January 31, 1997 and the Time of Closing on the Closing Date;




<PAGE>


                                                     - 7 -

         "Interim  Financial  Statements"  means,  collectively,  the  unaudited
balance sheets of each of the  Corporations as at the Interim Balance Sheet Date
and the  accompanying  statements of income of each of the  Corporations for the
one (1) month period then ended;

         "Internal  Revenue Code" means the U.S.  Internal Revenue Code of 1986,
as amended together with the regulations thereunder;

         "International  GAAP"  means  at any  time,  internationally  generally
accepted accounting  principles and practices as in effect from time to time and
applied consistently throughout the periods involved;

         "Intellectual  Properties" means all right, title, interest and benefit
of the  Corporations  in and to any registered or  unregistered  worldwide trade
marks, trade or brand names, service marks, copyrights,  copyright applications,
designs, inventions, patents, patent applications,  patent rights (including any
patents  issuing  on  such  applications  or  rights),  licences,  sub-licences,
franchises,  formulas, processes, know-how, technology, computer rights, seismic
data  (including any  interpretive  work) and other  intellectual  or industrial
property of the  Corporations  or  pertaining  to the  Business,  including  the
property listed in Schedule 9;

         "Inventories"  means all inventories of the Corporations  including (i)
all finished goods, work in process,  raw materials,  new and unused production,
and packing and shipping  supplies;  (ii) all new and unused  maintenance items;
(iii) all other  materials  and  supplies  on hand to be used or consumed in the
production of products;  and (iv) any oil in storage  tanks,  chemicals,  office
supplies, production related equipment and materials such as structural steel or
other tubing, casing, wellhead and other wellbore and artificial lift equipment,
field processing and transformation related supplies,  owned by the Vendor as of
the  Closing  Date (all such  Inventory  other than oil in  storage  tanks as of
January 31, 1997 being set out in Schedule 4);

         "Joint  Operating  Agreement"  means the joint  operating  agreement in
effect as of the date  hereof  between  Petroleros  Del Norte and the  Colombian
Subsidiary  relating to  exploration  of Petroleum  Substances  on the Colombian
Properties;

         "Lands"  means all real  property to the extent  that the  Corporations
have the right to explore,  develop or recover Petroleum  Substances pursuant to
the Leases;

         "Laws"  means  all  statutes,   codes,   ordinances,   decrees,  rules,
regulations,  municipal  by-laws,  judicial  or arbitral  or  administrative  or
ministerial or departmental or regulatory judgments,  orders, decisions, rulings
or awards, policies, voluntary restraints,  guidelines, or any provisions of the
foregoing,  including  general  principles  of common and civil law and  equity,
binding on or affecting the Person referred to in the context in which such word
is used; and "Law" means any one of them;

         "Leased  Properties"  means the real property subject to the office and
vehicle leases and subleases listed in Schedule 8;




<PAGE>


                                                     - 8 -

         "Leases" means the license agreements,  association contracts and joint
operating  agreements to which either of the  Corporations is a party, as listed
and  described  in  Schedule  6,  including,  collectively,  the Talara  License
Contract,  the Puli Association  Contract,  the Joint Operating  Agreement,  the
Talara  Operating  Agreement  and  all  other  licence  agreements,  association
contracts,  joint operating  agreements and other  Contracts  between any of the
Vendors and the Corporations  and any Person or Governmental  Entity in Colombia
and Peru and all leases, reservations, permits or other documents of title under
and by virtue of which the holder  thereof is entitled to drill for, win,  take,
own, store and remove the Petroleum  Substances  within,  upon or under any real
property to the extent provided in such respective leases and subleases;

         "Loss" means any loss whatsoever,  including expenses,  costs, damages,
penalties,  fines, charges, claims, demands,  liabilities,  interest and any and
all reasonable legal fees and disbursements;

         "Maximum Tax Pool Payment" has the meaning ascribed in Section 2.7;

         "MG" means MG Trade Finance Corp.;

         "MIP Shares" has the meaning ascribed in Subsection 2.2(a)(iv);

         "Net  Operating   Income"  means,  with  respect  to  certain  business
operations, the gross revenue of the Purchaser, after deduction by the Purchaser
of any and all applicable  royalties,  taxes  (including  remittance  taxes) and
other amounts payable to any Governmental Entity and any and all applicable bona
fide  transportation,  direct lifting and other direct costs and expenses of the
Corporations  incurred in connection  with the  production of oil and/or natural
gas, all as determined in accordance with COPAS Guidelines;

         "Notice" means any claim, citation, directive, request for information,
statement  of  claim,   notice  of   investigation,   letter  or  other  written
communication from any Person;

         "Oil and Gas Wells"  means any and all wells  drilled,  or caused to be
drilled,  by the  Purchaser on the  properties  described as  "Toqui-Toqui"  and
"Puli" on the  Colombian  Properties  for the purpose of finding  and  producing
Petroleum Substances; and "Oil and Gas Well" shall have a corresponding meaning;

         "Override"  means,  with  respect to the right of  Carbopetrol  S.A. to
certain  production  payments from the Chicoral  Formation,  the  entitlement of
Carbopetrol  S.A. to receive,  at any given time,  a certain  percentage  of the
Colombian  Subsidiaries'  revenue  interest  in  the  Chicoral  Formation  after
deduction of any applicable royalty payments;

         "Owned Properties" means, collectively, the land and premises listed on
Schedule 3 and the Buildings and Fixtures thereon;

         "Panama Loan" has the meaning ascribed in Subsection 2.2(a)(ii);




<PAGE>


                                                     - 9 -

         "Parties" means the Vendor, the Purchaser, each of the Corporations and
their  respective  permitted  successors  and any other  Person who may become a
party to this Agreement; and "Party" means any one of them;

         "Pension  Plans" means all the pension plans  relating to the employees
of the Corporations;

         "Performance Earn-Out" has the meaning ascribed in Subsection 2.6(a);

         "Performance  Earn-Out  Balance" has the meaning ascribed in Subsection
2.6(a);

         "Permitted  Encumbrances" means (i) Encumbrances for taxes, assessments
or governmental  charges or levies on property not yet due and delinquent;  (ii)
easements,  encroachments  and other minor  imperfections of title which do not,
individually or in the aggregate, detract from the value of or impair the use or
marketability of any real property; and (iii) Encumbrances disclosed in Schedule
16;

         "Person"  means  an  individual,   partnership,   corporation,   trust,
unincorporated  association,  joint  venture  or other  entity  or  Governmental
Entity, and pronouns have a similarly extended meaning;

         "Perupetro"  means  Perupetro  S.A., the oil and gas regulatory body of
the Peruvian government;

         "Peruvian Property" means that certain area in Peru known as "Block IV"
in which the Peruvian  Subsidiary has certain legal and/or  equitable  interests
pursuant to the Talara License Contract,  which interests in such area, together
with the Accounts Receivable of the Peruvian Subsidiary,  comprise substantially
all of the net assets of the Peruvian Subsidiary;

         "Peruvian  Subsidiary"  means  Pan  American  International   Petroleum
Corporation,  a corporation  existing  under the laws of Nevada and includes its
Branch;

         "Petroleum Substances" means liquid or gas hydrocarbons produced by oil
and gas wells;

         "Petroleros  Del  Norte"  means  Petroleros  Del Norte,  a  corporation
operating in Colombia;

         "Pre-Transfer  Legal Requirements" means any and all requirements under
or prescribed by Environmental Laws in effect on the Closing Date;

         "Puli Association Contract" means the association contract or contracts
between the Colombian Subsidiary and Ecopetrol in which the Colombian Subsidiary
obtained  working  interest in the area of the Middle Magdalena Valley Region of
Colombia and pursuant to which the Colombian  Subsidiary  currently  acts as the
operator of such association contract or contracts in Colombia;

         "Purchase Price" has the meaning ascribed in Section 2.2;

         "Purchased Shares" has the meaning ascribed in Section 2.1;



<PAGE>


                                                     - 10 -


         "Purchaser"   means   Mercantile   International   Petroleum   Inc.,  a
corporation existing under the laws of the Cayman Islands;

         "Release"  means  any  release,  spill,  emission,   leakage,  pumping,
injection, deposit, disposal, discharge, dispersal, leaching or migration;

         "Remedial  Action"  means a program of  remedial  measures  or actions,
satisfactory to the applicable authorized Governmental Entity, including but not
limited to the  removal,  disposal  and  treatment  of any  Hazardous  Substance
located,  on,  upon,  under,  above,  at or in the  vicinity of the Lands and/or
Leased Properties in accordance with Environmental Law and the commissioning and
conduct of any studies,  investigations,  audits,  assessments,  monitoring  and
screening of the Lands and/or Leased Properties following such removal, disposal
and treatment;

         "Rio Bravo" means  Compania  Petrolera  Rio Bravo S.A.,  a  corporation
operating in Peru;

         "Talara Operating  Agreement" means the operating agreement between Rio
Bravo and the  Peruvian  Subsidiary  related to the  exploitation  of  Petroleum
Substances on the Peruvian Property;

         "Talara  License   Contract"  means  the  license   agreement  for  the
exploitation of Petroleum Substances in Block IV, approved by Supreme Decree No.
16-95-EM and entered into by and between  Perupetro,  Rio Bravo and the Peruvian
Subsidiary signed on August 18, 1995 in connection with the Peruvian Property;

         "Tax" means any tax (including any income tax, capital gains tax, value
added tax, sales tax,  property tax, gift tax or estate tax), levy,  assessment,
tariff,  duty  (including  any customs duty),  deficiency or other fee,  related
charge or amount (including any fine,  penalty,  interest,  or addition to tax),
imposed,  assessed or  collected  by or under the  authority  of any  Government
Entity or payable  pursuant to any  tax-sharing  agreement or any other Contract
relating to the sharing or payment of any such tax,  levy,  assessment,  tariff,
duty, deficiency or fee; and "Taxes" shall have a corresponding meaning;

         "Tax  Pools"  means,  with  respect  to the  Branch  of  the  Colombian
Subsidiary,  expenditures  and  deductions  which were available (as adjusted in
accordance with Colombian Tax Law for any increase or decrease  through December
31, 1996 resulting  from inflation or deflation) to the Colombian  Subsidiary as
of December 31, 1996 and which can be utilized to offset  future income on which
Colombian income tax would otherwise be payable;

         "Tax Pool  Amount"  means the amount of the Tax Pools  available  as of
December  31,  1996,  as audited and  certified  by Price  Waterhouse  following
Closing, acting reasonably;

         "Tax Pool  Balance"  means the  balance  of the Tax Pool  Amount  after
deduction of any amount used to offset income tax in Colombia;

         "Tax Pool Payment" has the meaning ascribed in Section 2.7;

         "Tax Return"  means,  any return  (including any  information  return),
report,  statement,  schedule,  notice,  form, or other  document or information
filed with or submitted to, or required



<PAGE>


                                                     - 11 -

to be filed with or submitted to, any Governmental Entity in connection with the
determination,  assessment,  collection,  or payment of any Tax or in connection
with the  administration,  implementation,  or enforcement of or compliance with
any applicable Law relating to any Tax;

         "Time of Closing"  means 5:00 p.m.  (New York time) on the Closing Date
or such later time as the Closing may occur;

         "Threatened"  means, a claim,  proceeding,  dispute,  action,  or other
matter  which is not  pending but where a demand or  statement  has been made in
writing  or any  notice has been  given in  writing,  or if any other  event has
occurred or any other  circumstances  exist, that would lead a prudent Person to
conclude  that such a claim,  proceeding,  dispute,  action,  or other matter is
likely to be asserted, commenced, taken, or otherwise pursued in the future;

         "Trustee" means Mellon Bank F.S.B., successor to Society National Bank,
the existing  trustee of the AIPC  Debentures,  or such other successor  trustee
appointed  from time to time pursuant to the Trust  Indenture  dated January 20,
1993 between the Vendor and Society National Bank;

         "U.S.  GAAP"  means  at any  time,  United  States  generally  accepted
accounting  principles  and practices as in effect from time to time and applied
consistently throughout the periods involved; and

         "Vendor"  means  American  International   Petroleum   Corporation,   a
corporation existing under the laws of Nevada.

1.2 Gender and Number.  Any reference in this  Agreement to gender shall include
all genders,  and words  importing  the singular  number only shall  include the
plural and vice versa.

1.3 Headings,  Etc. The  provision of a Table of Contents,  the division of this
Agreement into Articles,  Sections,  Subsections and other  subdivisions and the
insertion of headings are for convenience of reference only and shall not affect
or be utilized in the construction or interpretation of this Agreement.

1.4 Currency.  All  references in this  Agreement or any Ancillary  Agreement to
dollars, unless otherwise specifically indicated, are expressed in United States
currency.

1.5 Severability.  Any Article, Section, Subsection or other subdivision of this
Agreement or any Ancillary Agreement or any other provision of this Agreement or
any Ancillary Agreement which is, or becomes,  illegal, invalid or unenforceable
shall  be  severed  from  this  Agreement  and any  Ancillary  Agreement  and be
ineffective to the extent of such illegality, invalidity or unenforceability and
shall not affect or impair the remaining provisions hereof or thereof.

1.6 Entire  Agreement.  This  Agreement  together with the Ancillary  Agreements
constitutes the entire agreement  between the Parties  pertaining to the subject
matter hereof and supersedes all prior agreements, understandings,  negotiations
and  discussions,  whether  oral  or  written,  of  the  Parties.  There  are no
representations, warranties, conditions or other agreements, express or implied,
statutory  or  otherwise,  between  the Parties in  connection  with the subject
matter of this



<PAGE>


                                                     - 12 -

Agreement,  except as specifically set forth herein and therein. If there is any
conflict  between the  provisions of this  Agreement  and the  provisions of any
Ancillary Agreement, the provisions of this Agreement shall govern.

1.7 Amendments.  This Agreement and any Ancillary Agreement may only be amended,
modified or supplemented by a written  agreement signed by all of the parties to
such agreement.

1.8  Waiver.  No  waiver  of any of the  provisions  of  this  Agreement  or any
Ancillary  Agreement  shall  be  deemed  to  constitute  a waiver  of any  other
provision (whether or not similar), nor shall such waiver constitute a waiver or
continuing waiver unless otherwise  expressly  provided in writing duly executed
by the Party to be bound thereby.

1.9 Governing Law. This Agreement and all Ancillary Agreements shall be governed
by and  interpreted  and enforced in accordance with the laws of the Province of
Ontario  and the  federal  laws of  Canada  applicable  therein  which  apply to
contracts made and to be performed entirely in Ontario.

1.10  Inclusion.  Where  the  word  "including"  or  "includes"  is used in this
Agreement it means "including (or includes) without limitation".

1.11 Accounting  Terms. All accounting  terms not  specifically  defined in this
Agreement  shall be construed in accordance  with U.S.  GAAP,  unless  otherwise
specified herein.

1.12 Knowledge.  A Party will be deemed to have "knowledge" of a particular fact
or other matter if, as at the Closing Date:

         (a)      an executive officer of the respective  Party,  other than Dr.
                  Enrique  Davila de Heridia,  is actually aware of such fact or
                  other matter; or

         (b)      such  individual  could be expected  to discover or  otherwise
                  become  aware of such fact or other  matter  in the  course of
                  discussions in  contemplation  of this  transaction with their
                  respective   Party's   lawyers,   accountants,   environmental
                  consultants,   and  with   respect   to  the  Vendor  and  the
                  Corporations,  Ecopetrol  and the Ministry of Energy and Mines
                  in Peru.

1.13 Incorporation of Schedules. The following are the schedules attached to and
incorporated in this Agreement:




<PAGE>


                                                     - 13 -

         Financial Schedules

Schedule 1        -        Financial Statements/Interim Financial Statements
Schedule 2        -        Inventory Policies, Practices and Procedures

         Asset Schedules

Schedule 3        -        Owned Properties
Schedule 4        -        Machinery, Equipment and Inventories
Schedule 5        -        Motor Vehicles
Schedule 6        -        Contracts, Leases and Notices of Default
Schedule 7        -        Intentionally Omitted
Schedule 8        -        Leased Properties
Schedule 9        -        Intellectual Properties

         Disclosure Schedules

Schedule 10       -        Jurisdictions in which Business Carried On
Schedule 11       -        Bank Accounts
Schedule 12       -        Environmental  Disclosure  (including  Abandoned  and
                           Plugged Oil and Gas Wells)
Schedule 13       -        Authorizations and Consents
Schedule 14       -        Collective Agreements
Schedule 15       -        Insurance Policies
Schedule 16       -        Encumbrances
Schedule 17       -        Pension Plans and Benefit Plans, Employee Matters and
                           Designated Employees
Schedule 18       -        Intentionally Omitted
Schedule 19       -        Litigation
Schedule 20       -        Interests of Ecopetrol and Petroleros Del Norte

         Schedules of Forms and Other Matters

Schedule 21       -        Intentionally Omitted
Schedule 22       -        Form of Acknowledgement
Schedule 23       -        Form of Legend
1
                                    ARTICLE 2

                       PURCHASED SHARES AND PURCHASE PRICE

2.1 Purchase and Sale.  Subject to the terms and conditions  hereof,  the Vendor
agrees to sell, assign and transfer to the Purchaser and the Purchaser agrees to
purchase  from the Vendor at the Time of Closing on the Closing  Date,  all (but
not less than all) of the issued and  outstanding  shares of common stock in the
capital of each of the Corporations (collectively, the "Purchased Shares").




<PAGE>


                                                     - 14 -

2.2 Purchase Price.  The total aggregate  purchase price (the "Purchase  Price")
payable by the Purchaser to the Vendor for the Purchased Shares shall be the sum
of (a),  (b) and (c)  below,  subject  to  adjustment,  deduction  or set-off in
accordance  with this Article 2 or as  otherwise  specifically  provided  herein
shall be paid as follows:

(a)      (i)      the  Purchaser  shall  pay and  deliver  by wire  transfer  of
                  immediately available funds to the order of the Vendor the sum
                  of $1,266,000;

         (ii)     the  Purchaser  shall  pay and  deliver  by wire  transfer  of
                  immediately available funds to the order of Banco De Occidente
                  Panama on behalf of the  Vendor  the sum of  $100,000  for the
                  payment  in full  and  final  satisfaction  of the  loan  (the
                  "Panama  Loan")  between  the  Vendor  and Banco De  Occidente
                  Panama;

         (iii)    the  Purchaser  shall  pay and  deliver  by wire  transfer  of
                  immediately  available  funds to the  Trustee on behalf of the
                  Vendor the sum of $361,620 to be  allocated  as to $337,500 to
                  the  payment  in full and  final  satisfaction  of the  unpaid
                  principal  amount of the AIPC  Debentures  and  $24,120  to be
                  allocated to accrued interest, the optional redemption premium
                  and the Trustee's fees.  Simultaneously with the Closing,  the
                  Vendor will acquire the AIPC  Debentures held by MG as set out
                  in (iv) below;

         (iv)     the Vendor shall direct that  $2,000,000 of the Purchase Price
                  be paid to MG to acquire the AIPC  Debentures in the principal
                  amount of $2,000,000;  Purchaser  shall borrow from MG the sum
                  of  $2,000,000  and direct  that the  proceeds of said loan be
                  paid to the  Vendor  and the  Vendor  shall  direct  that such
                  payment be applied in full  payment  for the  purchase  of the
                  AIPC Debentures held by MG and upon such acquisition, the AIPC
                  Debentures shall be deemed cancelled;

         (v)      the Purchaser shall  authorize,  create,  issue and deliver to
                  the Vendor  4,384,375  common shares (the "MIP Shares") in the
                  capital of the Purchaser;

         (vi)     the Purchaser shall pay and deliver,  if, as and when any such
                  amount  shall be due and  payable,  by bank draft or certified
                  cheque to or to the order of the Vendor an  additional  amount
                  of up to a total aggregate maximum sum of $1,365,000  pursuant
                  to Section 2.6; and

         (vii)    the  payment  of  any  additional  amounts  by  the  Colombian
                  Subsidiary,  if, as and when any such amounts shall become due
                  and payable, in immediately available funds of up to a maximum
                  sum of $2,500,000 pursuant to Section 2.7;

(b)      as part of the Purchase Price, the Parties  acknowledge  payment by the
         Purchaser  to the  Vendor  in  connection  with  the  execution  of the
         Agreement in Principle the sum of $210,000; and




<PAGE>


                                                     - 15 -

(c)      the Purchaser shall  guarantee the payment of the Colombian  Debenture,
         together with any amounts payable under Subsection  2.2(a)(vii)  above,
         pursuant to the continuing corporate guaranty dated even date herewith;
         the  Colombian   Subsidiary  shall  issue  and  deliver  the  Colombian
         Debenture simultaneously with Closing.

2.3      Calculation  of  Purchase  Price.  The  Parties  acknowledge  that  the
         Purchase Price for the Purchased  Shares of up to  $20,205,370,  which,
         because of the  contingent  nature of certain  elements of the purchase
         price and the valuation of the MIP Shares, does not reflect fair market
         value as at Closing, was determined as follows:

         (i)      the prepayment of the sum of $210,000, which sum was delivered
                  to the Vendor prior to Closing;

         (ii)     the  payment  to the  Vendor  of the sum of  $1,534,750  which
                  amount  reflects a downward  adjustment of the cash portion of
                  the Purchase  Price  payable at Closing by $134,000 to reflect
                  an  increase  in  Subsection  2.3(viii)  below of net  deficit
                  working capital to $634,000 from $500,000 to the Vendor;

         (iii)    the  payment to the Trustee on behalf of the Vendor of the sum
                  of $192,870 to be allocated to the payment of a portion of the
                  redemption  amount of the outstanding AIPC Debentures  (except
                  the AIPC Debenture held by MG),  together with the delivery of
                  an  additional  84,375  MIP Shares to the Vendor in return for
                  the Vendor paying the Trustee the remaining  redemption amount
                  of  $168,750  of  principal  amount  of the  outstanding  AIPC
                  Debentures,  and the payment by the Purchaser to the Vendor of
                  the  sum  of  $2,000,000   borrowed  from  MG  pursuant  to  a
                  promissory  note issued by the  Purchaser to MG to acquire and
                  cancel  the AIPC  Debenture  of MG,  all  having an  aggregate
                  allocation value of $2,361,620;

         (iv)     by  the  issuance  and  delivery  of  4,300,000   MIP  Shares,
                  allocated an aggregate value of $8,600,000;

         (v)      the  issuance  and  delivery by the  Colombian  Subsidiary  of
                  $3,000,000 principal amount of the Colombian Debenture;

         (vi)     the payment of the sum of up to an  aggregate  of  $1,365,000,
                  pursuant to Performance Earn-Out;

         (vii)    the payment of the sum of up to an aggregate of  $2,500,000 as
                  any additional amounts pursuant to the Tax Pools; and

         (viii)   upon the acquisition of the  Corporations,  such  Corporations
                  having net deficit working capital of $634,000.




<PAGE>


                                                     - 16 -

2.4      Closing Balance Sheet and Adjusted Working Capital

(a)      

         Within ninety (90) days  following the Closing Date (or such other date
         as is mutually  agreed to by the Vendor and the  Purchaser in writing),
         the Purchaser  will, at its direction and expense,  prepare and deliver
         to the Vendor a draft audited closing balance sheet (the "Draft Closing
         Balance Sheet") of the  Corporations  prepared as at the Effective Time
         on the Closing Date,  together with a draft auditor's report. The Draft
         Closing Balance Sheet with respect to (x) the Colombian Subsidiary will
         be prepared on an audited basis in accordance with U.S. GAAP applied on
         a basis  consistent  with  the  preparation  of the  audited  Financial
         Statements,  except that (i) any exceptions from U.S. GAAP set forth in
         Schedule 1 will be adhered to, and (ii) the Inventories  will be valued
         in  accordance  with U.S.  GAAP only to the  extent  that U.S.  GAAP is
         consistent with the inventory policies, practices and procedures of the
         Colombian   Subsidiary,   which  inventory   policies,   practices  and
         procedures  are  referred  to  in  Schedule  2  and  which  are  hereby
         incorporated  by  reference  into  Schedule  2;  and (y)  the  Peruvian
         Subsidiary  will  be  prepared  on  an  unaudited  basis  in  a  manner
         consistent with prior practice which prior practice, as a result of the
         Rio Bravo dispute,  requires the omission of earned but unpaid revenues
         and accrued but unpaid  expenses  related to the oil and gas production
         with  respect to the  Peruvian  Property as well as the omission of the
         booking  of any  contingent  results  of the  Rio  Bravo  dispute.  The
         Purchaser shall provide access,  upon every reasonable  request, to the
         Vendor and its auditors to all work papers of the Purchaser's auditors,
         accounting   books  and  records  relating  to  the  Business  and  the
         appropriate  personnel to verify the accuracy,  presentation  and other
         matters  relating to the preparation of the Draft Closing Balance Sheet
         and the Vendor and the Purchaser  shall  otherwise fully cooperate with
         each other in the preparation of the Draft Closing  Balance Sheet.  The
         Vendor and the Purchaser shall each bear the fees and expenses of their
         respective auditors in preparing or reviewing the Draft Closing Balance
         Sheet and the Closing Balance Sheet.

(b)      The Draft  Closing  Balance  Sheet  prepared and delivered as aforesaid
         shall be final and binding  upon the Parties for all  purposes  hereof,
         absent  manifest  error,  unless the Vendor  notifies the  Purchaser in
         writing that it disputes the Draft Closing Balance Sheet within fifteen
         (15)  Business  Days after  receipt by the Vendor of the Draft  Closing
         Balance Sheet.

(c)      In the event that the Vendor  disputes the Draft Closing  Balance Sheet
         or  the  amount  of  the  Tax  Pool  Amount,   the  Parties  will  work
         expeditiously  and in good faith in an attempt to resolve such disputes
         within a further  period of twenty (20) Business Days after the date of
         notification  by the Vendor to the Purchaser of such disputes,  failing
         which  such  disputes  shall  be  submitted  for  determination  to  an
         independent  national  firm of  accountants  mutually  agreed to by the
         Vendor and the  Purchaser  (and,  failing  such  agreement  between the
         Vendor  and the  Purchaser  within a  further  period of  fifteen  (15)
         Business Days, such independent  national firm of accountants  shall be
         Arthur  Andersen,  or  if  such  firm  refuses  to  act  because  of  a
         professional   conflict  or   otherwise,   Coopers  &   Lybrand).   The
         determination  of such third  firm of  chartered  accountants  shall be
         final and binding  upon the  Parties and not subject to appeal,  absent
         manifest error. The third firm of chartered accountants shall be deemed
         to be acting as experts and not as arbitrators.  The costs and expenses
         of such third firm of chartered  accountants  shall be borne equally by
         the Vendor and the Purchaser. The Vendor and the Purchaser shall each



<PAGE>


                                                     - 17 -

         bear their own costs in  presenting  their  cases to such third firm of
         chartered  accountants.  The  accountants  will accept as accurate  the
         Financial Statements.

(d)      Immediately  following the fifteen (15) Business Day period referred to
         in  Subsection  2.4(b) or the  resolution  of any dispute in accordance
         with the foregoing,  as the case may be, the Purchaser  shall forthwith
         deliver to the Vendor the final  Closing  Balance  Sheet (the  "Closing
         Balance  Sheet")  together  with the  auditor's  report  thereon.  Such
         Closing  Balance  Sheet  shall be final and binding  upon the  Parties,
         absent manifest error.

(e)      In the event the Adjustment Amount (as defined below) is positive, then
         such  corresponding  amount shall,  upon receipt of the Closing Balance
         Sheet, be forthwith applied as an increase to the Performance  Earn-Out
         (and  consequent   adjustment  to  the  Performance  Earn-Out  Balance)
         pursuant  to  Section  2.6.  In the  event  the  Adjustment  Amount  is
         negative,  then such amount shall,  upon receipt of the Closing Balance
         Sheet, be forthwith applied as a reduction to the Performance  Earn-Out
         (and  consequent   adjustment  to  the  Performance  Earn-Out  Balance)
         pursuant to Section  2.6. Any such  adjustment  shall be made as of the
         Closing Date. For the purposes  hereof,  "Adjustment  Amount" means the
         amount,  whether  positive or negative,  by which the Adjusted  Working
         Capital as determined from the Closing Balance Sheet exceeds $634,000.

(f)      If  the  liabilities   (excluding  deferred  taxes  and  the  Colombian
         Debenture)  of the  Corporations  shown on the  Closing  Balance  Sheet
         exceed  $2,600,000,  the amount of any such excess shall be paid by the
         Vendor to the  Purchaser  at its  address  for notice set out herein 30
         days  after the  delivery  to the Vendor of the final  Closing  Balance
         Sheet.

(g)      For purposes of computing  Adjusted  Working  Capital,  notwithstanding
         anything contained herein to the contrary, expenses attributable to the
         Environmental  Claims  set forth on  Schedule  12  hereof  shall not be
         booked  as  a  liability  and  the  government  mandated  Pension  Plan
         contingent  liability  set  forth in  Schedule  17 shall be booked as a
         liability in the amount of $40,000.

2.5 Payment of Taxes and Registration  Charges on Transfer.  The Purchaser shall
be liable for and shall pay all taxes,  duties,  registration charges (including
the fees of the  Trustee,  fees of legal  counsel  to MG and The  Toronto  Stock
Exchange  listing fees) or other like charges  properly  payable by a buyer upon
and in connection  with the conveyance  and transfer of the Purchased  Shares by
the Vendor to the Purchaser hereunder.

2.6      Performance Earn-Out Payment.

(a)      As additional  consideration  for the Purchased  Shares,  the Purchaser
         shall grant, or cause to be granted, to the Vendor the right to receive
         fifty  percent  (50%) of the Net  Operating  Income from an Oil and Gas
         Well, after the recovery by the Purchaser of one hundred percent (100%)
         of the Capital  Expenditures  relating thereto, up to a total aggregate
         maximum to be received by the Vendor of  $1,365,000  (the  "Performance
         Earn-Out"),  plus interest, earned from all Oil and Gas Wells. Interest
         on any unpaid  amount of the  Performance  Earn-Out  (the  "Performance
         Earn-Out  Balance") shall accrue to increase the  Performance  Earn-Out
         Balance at the rate of eight percent (8%) per annum (compounded



<PAGE>


                                                     - 18 -

         annually) commencing from the Closing Date. The Purchaser shall provide
         the Vendor with quarterly "payout  statements" (as such term is used in
         the oil and gas industry) until total recovery of Capital  Expenditures
         has  occurred.  After  total  recovery of the  Capital  Expenditure  in
         respect of an Oil and Gas Well, the Purchaser  shall provide the Vendor
         with monthly reports of its Net Operating Income in respect of such Oil
         and Gas Wells  within  30 days of the end of such  month and pay to the
         Vendor  any  amounts  due to the  Vendor  pursuant  to the  Performance
         Earn-Out  within 30 days after the end of each  calendar  quarter.  The
         Purchaser  shall also provide  annual  statements to the Vendor setting
         out the Performance  Earn-Out  Balance at each calendar  year-end,  and
         upon the commencement of any Performance  Earn-Out payment,  additional
         statements  will  be  provided  with  each  such  Performance  Earn-Out
         payment.

(b)      In the event that (i) the Purchaser  has not  Completed  drilling on at
         least ten (10) Oil and Gas  Wells on the  Colombian  Properties  by the
         second  anniversary  date of the  Closing;  and  (ii)  the  Performance
         Earn-Out  Balance  has not been paid in full by the  third  anniversary
         date of the Closing,  then the Vendor may elect to receive on the third
         anniversary  date of the Closing the  Performance  Earn-Out  Balance in
         three (3) equal annual instalment payments, plus interest on the unpaid
         balance at 8%,  commencing on the third anniversary date of the Closing
         with the final payment  occurring on the fifth  anniversary date of the
         Closing.  Such  election must be made not more than sixty (60) days and
         not less than thirty (30) days prior to the third anniversary date.

(c)               (i) In  the  event  that  the  Purchaser  sells,  directly  or
                  indirectly,  all of its interest  (other than to an Affiliate)
                  in the Colombian  Properties at any time after  Closing,  then
                  the Performance  Earn-Out Balance shall become immediately due
                  and payable by the  Purchaser on the closing of such  purchase
                  and sale transaction.

         (ii)     In the event that the Purchaser sells, directly or indirectly,
                  less than all of its interest  (other than to an Affiliate) in
                  the  Colombian  Properties at any time after  Closing,  then a
                  corresponding   equivalent   percentage  of  the   Performance
                  Earn-Out   Balance  to  such  sold   interest   shall   become
                  immediately due and payable by the Purchaser on the closing of
                  such  purchase  and  sale   transaction  and  the  Performance
                  Earn-Out Balance shall be reduced accordingly.

         (iii)    In the  event  that the  Colombian  Subsidiary  Farms-Out  any
                  percentage  of  its  interest  in  the  Colombian   Properties
                  following closing, then a corresponding  equivalent percentage
                  of  the  Performance   Earn-Out  Balance  to  such  Farmed-Out
                  interest  shall  become  immediately  due and  payable  by the
                  Purchaser on the closing of such  Farming-Out  transaction and
                  the Performance Earn-Out Balance shall be reduced accordingly.

(d)      The Performance  Earn-Out  Balance is subject to adjustment,  deduction
         and/or set-off as provided in Subsections 2.4(e),  2.6(c), 6.7, 6.9 and
         7.8 or as otherwise specifically provided herein.

2.7      Tax  Pools.  The  Colombian  Subsidiary  (but  not  the  Branch  of the
         Colombian Subsidiary) shall pay the Vendor twenty-five percent (25%) (a
         "Tax Pool Payment") of any amount



<PAGE>


                                                     - 19 -

         otherwise  payable  by the  Colombian  Subsidiary  to  the  appropriate
         Colombian   Governmental   Entity  responsible  for  tax  matters  (the
         "Colombian  Tax  Authority")  but for the  utilization by the Colombian
         Subsidiary  of any  portion  of the Tax  Pools  Balance.  Any Tax  Pool
         Payment to which the Vendor is entitled to herein  shall be paid to the
         Vendor within sixty (60) days of the date such amounts would  otherwise
         have been payable to the Colombian Tax Authority.  The aggregate of all
         Tax Pool  Payments  (and deemed Tax Pool  Payments  pursuant to Section
         6.7) to the Vendor shall not exceed a maximum  amount (the "Maximum Tax
         Pool Payment"). The Maximum Tax Pool Payment shall be $2,500,000 if the
         Tax Pool Amount is equal to or greater than the sum of  $50,000,000  on
         December  31, 1996.  The Maximum Tax Pool Payment  shall be zero if the
         Tax Pool  Amount is equal to or less than the sum of  $20,000,000.  The
         Maximum Tax Pool Payment  will be  pro-rated  downwards if the Tax Pool
         Amount is less than $50,000,000. For example, if the Tax Pool Amount is
         equal to  $30,000,000,  then the  Maximum  Tax  Pool  Payment  shall be
         $833,000;  if the Tax Pool Amount is equal to $40,000,000,  the Maximum
         Tax Pool Payment is equal to  $1,666,000.  The Tax Pool Amount shall be
         calculated in U.S.  dollars  using the exchange rate  available for the
         purchase of U.S. dollars using Colombian pesos on the Closing Date, for
         the purpose of calculating  the Maximum Tax Pool Payment.  The Tax Pool
         Balance at the end of a calendar  year will be adjusted to reflect both
         any  inflationary  adjustment  under  the  rules of the  Colombian  Tax
         Authority  and any change in the exchange  rate between the US$ and the
         Colombian peso (or any successory  currency) from the beginning of such
         year  to  the  last  day of  such  year,  provided  however  that  such
         adjustment  shall in no event  increase  the Maximum  Tax Pool  Payment
         computed as at Closing. All annual payments to be made to the Vendor in
         respect  thereof shall be made in U.S.  dollars using the exchange rate
         available for the purchase of U.S. dollars using Colombian pesos on the
         date such payment  would  otherwise  have been payable to the Colombian
         Taxing Authority. In the event that the Purchaser sells more than fifty
         percent  (50%) of the  shares  in the  common  stock  of the  Colombian
         Subsidiary,  the  Purchaser  shall pay to the Vendor an amount equal to
         50% of the  difference  between the  Maximum  Tax Pool  Payment and the
         aggregate of all Tax Pool  Payments made prior thereto and require that
         the subsequent  purchaser assume the Purchaser's  obligations under its
         Continuing Corporate Guaranty for the remainder of the Maximum Tax Pool
         Payment  (and the  Purchaser  shall be relieved of its  obligations  in
         respect thereof pursuant to such guarantee at such time.)


                                    ARTICLE 3

                  REPRESENTATIONS AND WARRANTIES OF THE VENDOR

3.1  Representations  and  Warranties of the Vendor.  The Vendor  represents and
warrants as follows to the  Purchaser  and  acknowledges  and confirms  that the
Purchaser is relying upon such representations and warranties in connection with
the purchase by the Purchaser of the Purchased Shares:

CORPORATE MATTERS RELATING TO THE VENDOR AND THE CORPORATIONS




<PAGE>


                                                     - 20 -

(a)      Due  Incorporation  and Existence of the Corporations and the Branches.
         The Colombian Subsidiary is a corporation incorporated, existing and in
         good standing  under the laws of Oklahoma and its Branch in Colombia is
         in good standing under the laws of Colombia. The Peruvian Subsidiary is
         a corporation  incorporated,  existing and in good  standing  under the
         laws of Nevada  and its  Branch in Peru is in good  standing  under the
         laws of Peru.

(b)      Due  Incorporation  and  Existence  of  the  Vendor.  The  Vendor  is a
         corporation incorporated,  existing and in good standing under the laws
         of Nevada.

(c)      Corporate  Power.  Each of the  Corporations has the corporate power to
         own its property and to carry on its Business as now being conducted by
         it.

(d)      Qualification  To  Carry  on  Business.   The  Corporations  and  their
         respective Branches are duly qualified, licensed or registered to carry
         on business in the  jurisdictions or applicable  contract areas, as the
         case may be,  listed  in  Schedule  10.  The  jurisdictions  listed  in
         Schedule 10 include all jurisdictions in which the nature of the Assets
         or the Business makes such qualification  necessary or where failure to
         be so qualified  would have a material  adverse  effect on the affairs,
         assets, liabilities, business or prospects, operations or conditions of
         any of the  Corporations  or the Business,  financial or otherwise,  or
         where any of the Corporations  own or lease any material  properties or
         assets or conduct any material business.

(e)      Authorized  and  Issued  Capital  of  the  Colombian  Subsidiary.   The
         authorized capital of the Colombian  Subsidiary consists of 5000 shares
         divided into one class of common stock, U.S. $1.00 par value, of which,
         at the date  hereof  and at the Time of  Closing,  500 shares of common
         stock (and no more) and have been and shall  have been duly  issued and
         are outstanding as fully paid and non-assessable.

(f)      Authorized  and  Issued  Capital  of  the  Peruvian   Subsidiary.   The
         authorized capital of the Peruvian  Subsidiary  consists of 200 shares,
         all of which are of a par value of $0.01,  and all such  shares  are of
         one class and are  designated  as common stock,  of which,  at the date
         hereof and at the Time of Closing,  200 shares of common  stock (and no
         more) have been and shall have been duly issued and are  outstanding as
         fully paid and non-assessable.

(g)      Branch Capital.  Each Branch has sufficient  capital either assigned or
         available for designation from the "Home Office  Intercompany  Account"
         to  comply  with the  requirement  of any  Governmental  Entity  having
         jurisdiction   over  such  Branch  which   specifies   minimum  capital
         requirements.




<PAGE>


                                                     - 21 -

(h)      Options,  etc.  Except for the  Purchaser's  rights  hereunder  and the
         rights  of the  holders  of the AIPC  Debentures  to the  shares in the
         common stock of the  Colombian  Subsidiary  under a certain  pledge and
         security  agreement,  no Person has any option,  warrant,  right, call,
         commitment,  conversion right,  right of exchange or other agreement or
         any right or privilege  (whether by law,  pre-emptive  or  contractual)
         capable  of  becoming  an option,  warrant,  right,  call,  commitment,
         conversion  right,  right of  exchange or other  agreement  (i) for the
         purchase  from the Vendor of any of the Purchased  Shares;  or (ii) for
         the  purchase,  subscription,  allotment  or  issuance  of  any  of the
         unissued shares in the capital of the Corporations or of any securities
         of the  Corporations.  The Vendor  agrees to cause any creditor to whom
         the Vendor  transfers any Common Shares pursuant to any pledge or other
         grant of security interest,  including MG to execute an acknowledgment,
         substantially in the form of the unexecuted  acknowledgment in Schedule
         22, to ensure  that the terms and  conditions  of resale of the  Common
         Shares shall be, in aggregate, the same as those under which the Vendor
         is bound.

(i)      Title to Purchased Shares. The Purchased Shares are owned by the Vendor
         as the registered and beneficial owner thereof with good title thereto,
         free and clear of all  Encumbrances,  other  than with  respect  to the
         security  interest  in favour of the  Trustee  which is being  released
         simultaneously  with the  execution  hereof.  The Vendor has the right,
         power  and  authority  to enter  into this  Agreement  and to sell such
         Purchased Shares as contemplated  herein. The delivery of the Purchased
         Shares to the Purchaser pursuant to the provisions hereof will transfer
         to  the  Purchaser   valid  title  thereto,   free  and  clear  of  all
         Encumbrances, except for any Permitted Encumbrance.

(j)      Dividends and  Distributions.  Except as  specifically  provided for in
         this Agreement, since the date of the Financial Statements,  neither of
         the  Corporations  have,  directly or indirectly,  declared or paid any
         dividends  or  declared  or made any other  distribution  on any of its
         shares of any  class and has not,  directly  or  indirectly,  redeemed,
         purchased  or  otherwise  acquired  any of its  shares  of any class or
         agreed  to  do  so  as  contemplated  hereunder.  The  Vendor  and  the
         Corporations   have  agreed  to   contribute  to  the  capital  of  the
         Corporations all Intercompany Debt other than the $3,000,000 which will
         remain outstanding as the Colombian Debenture.

(k)      Corporate  Records.  Each  of the  Corporations,  with  respect  to all
         material corporate  proceedings and actions,  is in compliance with all
         applicable Laws and with the articles and by-laws of the  Corporations,
         and without  limiting the generality of the  foregoing,  (i) the minute
         books  contain  complete  and  accurate  minutes of all meetings of the
         directors  and  shareholders  of  the   Corporations   held  since  the
         incorporation of each of the Corporations on duly authorized activities
         having a material  effect on the  Business,  and all such meetings were
         duly called and held or to the extent not reflected in such minutes, in
         the  minutes  executed  by  the  Vendor  as  sole  shareholder  of  the
         Corporation on the date hereof confirming all actions previously taken;
         (ii) the share certificate books, register of shareholders and register
         of transfers of each of the Corporations are complete and accurate, and
         all such  transfers  have  been duly  completed  and  approved  and any
         exigible tax payable in connection  with the transfer of any securities
         of the  Corporations  has been duly paid;  and (iii) the  registers  of
         directors and officers are complete and accurate and



<PAGE>


                                                     - 22 -

         all  former  and  present   directors  and  officers  of  each  of  the
         Corporations were duly elected or appointed, as the case may be.

(l)      Validity of Agreement.  Each of the Vendor and the Corporations has all
         necessary  corporate  power to enter into and perform  its  obligations
         under this  Agreement  and the  Ancillary  Agreements  to which it is a
         party.  Assuming the  Authorizations and Consents set forth in Schedule
         13 have been obtained,  the execution,  and delivery and performance by
         the Vendor and the Corporations,  as the case may be, of this Agreement
         and the  Ancillary  Agreements  to  which  each of the  Vendor  and the
         Corporations  is a  party  and  the  consummation  of the  transactions
         contemplated thereby:

         (i)      have been duly authorized by all necessary corporate action on
                  the part of each of the Vendor and the Corporations; and

         (ii)     do not (or would not with the giving of notice or the lapse of
                  time) result in a violation or a breach of, or a default under
                  or  give  rise  to  a  right  of  termination,   amendment  or
                  cancellation or the  acceleration of any obligation  under (A)
                  any charter or by-law  instruments  of either of the Vendor or
                  the  Corporations;  (B) any contracts or  instruments to which
                  either  of the  Vendor  or the  Corporations  is a party or by
                  which either of the  Corporations or the Vendor is bound,  the
                  breach of which would  materially  adversely  affect either of
                  the Corporations; or (C) of any Laws applicable to it.

         This Agreement and any Ancillary Agreement to which the Corporations or
         the Vendor is a party constitute legal,  valid and binding  obligations
         of each  of the  Corporations  and  the  Vendor,  as the  case  may be,
         enforceable against them in accordance with their respective terms.

(m)      Restrictive  Documents.  Neither  the  Corporations  nor the  Vendor is
         subject to, or a party to, any charter or by-law restriction,  any Law,
         any Claim,  any contract or  instrument,  any  Encumbrance or any other
         restriction   of  any  kind  or  character   which  would  prevent  the
         consummation  of the  transactions  contemplated  by this  Agreement or
         compliance by either of the  Corporations or the Vendor with the terms,
         conditions and provisions  hereof or to the knowledge of the Vendor the
         continued  operation of the Business by the Corporations after the date
         hereof  or  the  Closing  Date  on  substantially  the  same  basis  as
         heretofore  operated  or  which  would  restrict  the  ability  of  the
         Purchaser  to acquire  any of the  Purchased  Shares or (except for the
         dispute with Rio Bravo) to conduct the Business in any area.

GENERAL MATTERS RELATING TO THE BUSINESS

(n)      Conduct of Business in Ordinary Course.  Provided sufficient capital is
         provided by the  Purchaser,  the Assets include all rights and property
         necessary  to  the  conduct  of  the   Business  by  the   Corporations
         immediately following the Closing substantially in the manner presently
         carried on by it. The  Corporations  have not  committed to acquire any
         machinery,  equipment or  inventory  for which a  Corporation  would be
         liable to pay in excess of $25,000  and for which the  Corporation  has
         not received an account, invoice or



<PAGE>


                                                     - 23 -

         other document  evidencing such liability which is not reflected on the
         books and records of such Corporation.  Since the Interim Balance Sheet
         Date, the Business has been carried on in the ordinary  course and each
         of the Corporations has not:

         (i)      incurred any liability or  obligation  of any nature  (whether
                  accrued, absolute,  contingent or otherwise) other than in the
                  ordinary  course of  business,  which  individually  or in the
                  aggregate exceeds $25,000;

         (ii)     sold,  transferred or otherwise  disposed of any of the Assets
                  except for the sale of Inventories  in the ordinary  course of
                  the Business;

         (iii)    made any capital  expenditure  or  commitment  therefor  which
                  individually or in the aggregate exceeds $25,000;

         (iv)     made any bonus or profit  sharing  distribution  or payment of
                  any kind in excess of $25,000;

         (v)      increased its indebtedness for borrowed money,  except current
                  borrowings  from banks in the ordinary course of its Business,
                  or made any loan to any Person in excess of $25,000;

         (vi)     written off as uncollectible any notes or Accounts Receivable,
                  except  write-offs  in the  ordinary  course  of the  Business
                  charged to applicable reserves,  none of which individually or
                  in the  aggregate  is  material to the  Corporations  or is in
                  excess of $25,000;

         (vii)    cancelled or waived any material claims or rights;

         (viii)   except as specifically  disclosed in Subsection 2(4)(g) above,
                  made any  change  in any  method  of  accounting  or  auditing
                  practice;

         (ix)     amended its articles or by-laws; or

         (x)      agreed, whether or not in writing, to do any of the foregoing.

(o)               No Material  Adverse  Change.  Since the Interim Balance Sheet
                  Date,  there  has  been  no  change  in the  affairs,  assets,
                  liabilities,  business, prospects, operations or conditions of
                  the  Corporations  or the  Business,  financial or  otherwise,
                  whether  arising as a result of any  legislative or regulatory
                  change,  revocation  of any  licence or right to do  business,
                  fire, explosion,  accident,  casualty,  labour trouble, flood,
                  drought, riot, storm,  condemnation,  act of God, public force
                  or otherwise, which has materially adversely affected or which
                  will,  to the  knowledge of the Vendor,  materially  adversely
                  affect the  Corporations  or the Business,  except for general
                  economic conditions  affecting Colombia or Peru or the oil and
                  gas industry.




<PAGE>


                                                     - 24 -

(p)      Compliance  with Laws.  Each of the  Corporations  and its  Branches is
         conducting its Business in compliance  with all applicable Laws of each
         jurisdiction  in which its  Business is carried on,  except for acts of
         non-compliance  which in the aggregate  would not materially  adversely
         affect either of the Corporations or its Business.

(q)      Environmental.

         (i)      Except as set forth in  Schedule  12 to the  knowledge  of the
                  Vendor  none  of  the  Lands,   Owned   Properties  or  Leased
                  Properties  have ever been  used by any  Person as a  landfill
                  site, a waste  disposal site or as a location for the disposal
                  (as such term is customarily used under  applicable  Colombian
                  Law) of  Hazardous  Substance  or waste  and has ever had urea
                  formaldehyde foam insulation, asbestos, PCB waste, radioactive
                  substances or  aboveground  or  underground  storage  vessels,
                  active or abandoned, located thereon.

         (ii)     Except as set forth in Schedule  12, to the  knowledge  of the
                  Vendor and the Corporations, none of the Corporations has been
                  required by any Governmental Entity to:

                  (A)      alter  the   Lands,   Owned   Properties   or  Leased
                           Properties  in a  material  way  in  order  to  be in
                           compliance with Environmental Laws;

                  (B)      remove  any  material  from any of the  Lands,  Owned
                           Properties or Leased Properties; or

                  (C)      perform   any   remedial   studies,   investigations,
                           closure, decommissioning, rehabilitation, restoration
                           and   post-remedial   studies,    investigations   or
                           monitoring on about or in connection  with any of the
                           Lands, Owned Properties or Leased Properties.

         (iii)    Except as set forth in Schedule  12, to the  knowledge  of the
                  Vendor,  no  Environmental  Law limits the production rates of
                  any Asset of the Corporation.

         (iv)     Except as set forth in Schedule  12, none of the Lands,  Owned
                  Properties  or Leased  Properties  or, to the knowledge of the
                  Vendor any other property formerly owned or leased by or under
                  the  charge,  management  or control of the  Corporations,  is
                  listed or is proposed for listing on any Governmental List and
                  to the knowledge of the Vendor,  none of the  Corporations  or
                  any Person  acting on its behalf has  transported  or arranged
                  for the transportation of any Hazardous  Substance (except for
                  those  substances  ordinarily  connected with the drilling and
                  operation  of oil and gas wells) to, or disposed (as such term
                  is  customarily  used under  applicable  Colombian Law) of any
                  Hazardous  Substance  present  at any  location  which is on a
                  Governmental  List or  which  is  proposed  for  listing  on a
                  Governmental List.




<PAGE>


                                                     - 25 -

(r)               Authorizations.   Each  of  the  Corporations   owns,   holds,
                  possesses  or lawfully  uses in the  operation of the Business
                  all material  Authorizations which are in any manner necessary
                  for it to conduct the  Business  as  presently  or  previously
                  conducted or for the ownership and use of the Assets, free and
                  clear  of all  Encumbrances  and in  compliance  with all Laws
                  applicable  thereto.   All  material   Environmental   Permits
                  required by the  Corporations  or the  Business are listed and
                  described in Schedule 12.  Except as set forth in Schedule 12,
                  each of the Corporations is not in material  default,  nor has
                  it received  any Notice of any Claim in default,  with respect
                  to any material  Authorizations.  All such  Authorizations are
                  renewable by their terms, if any, or in the ordinary course of
                  business  without the need for the Corporations to comply with
                  any special  qualification or procedures or to pay any amounts
                  other than routine  filing fees.  None of such  Authorizations
                  will  be  adversely   affected  by  the  consummation  of  the
                  transactions  contemplated  hereby,  except  as set  forth  in
                  Schedule  13.  Neither  the  Vendor nor any  affiliate  of the
                  Vendor  owns  or  has  any  proprietary,  financial  or  other
                  interests (direct or indirect) in any Authorization  which the
                  Corporations  own,  possess  or use in  the  operation  of the
                  Business as now or previously conducted.

MATTERS RELATING TO THE ASSETS

(s)      Title to the Assets.  Except as set forth in  Schedule  16, each of the
         Corporations  has good and  valid  title to or  interest  in all of the
         Assets  and  good  and  marketable  title in fee  simple  to the  Owned
         Properties. Each of the Corporations has legal and beneficial ownership
         of or  right to use the  Assets  free  and  clear of all  Encumbrances,
         except for  Permitted  Encumbrances  and the rights of the lessor under
         any Leases or any leases in  connection  with  Leased  Properties.  The
         Vendor and the Corporations  further represent and warrant that, except
         as set forth in Schedule 16:

         (i)      neither  the  Vendor,  the  Corporations  or their  respective
                  Branches, have done any act nor to the knowledge of the Vendor
                  or the Corporations has any act been done,  whereby any of the
                  interests of the  Corporations in the Assets may be cancelled,
                  terminated  or  modified,  except as provided by the  specific
                  terms  thereof or,  where such  cancellation,  termination  or
                  modification,  would  otherwise  not have a  material  adverse
                  effect;

         (ii)     the  Vendor,  its  subsidiaries,  the  Corporations  and their
                  respective  Branches have not  encumbered,  granted a security
                  interest in or  transferred,  leased,  licensed  or  otherwise
                  disposed  of the  Assets or any  interest  therein  other than
                  Permitted Encumbrances and other than the rights of the lessor
                  under any Lease or under any lease of the Leased Properties;

         (iii)    the  Assets  are free and  clear of all  liens,  Encumbrances,
                  adverse claims,  demands and royalties  created by, through or
                  under the Vendor, its subsidiaries,  the Corporations or their
                  respective Branches,

                  except for Permitted  Encumbrances or encumbrances  that arise
                  by operation of law;




<PAGE>


                                                     - 26 -

(t)      Quiet  Enjoyment.  Subject  to the  rents,  covenants,  conditions  and
         stipulations in the Leases and the express terms of any Contracts,  any
         agreements pertaining to the Assets and on the lessee's or holders part
         thereunder to be paid,  performed and observed,  the Purchaser  may, at
         Closing,  to the knowledge of the Vendor, hold and enjoy the Assets for
         the remainder of their  respective terms and all renewals or extensions
         thereof,  where  applicable,  for its own use and  benefit  without any
         lawful  interruption of or by the Vendor or any other Person whomsoever
         claiming  by,  through  or under the Vendor  other  than the  Purchaser
         itself,  and the  Vendor  binds  itself to  warrant  and defend all and
         singular the Assets against all such Persons so claiming.

(u)      Production Sales Contracts.  Each of the Vendor, its subsidiaries,  the
         Corporations  and their  respective  Branches has no  production  sales
         contracts to which it is a direct party that is not  terminable  by the
         Vendor on ninety (90) days or less notice,  except for those  described
         in Schedule 6;

(v)      Notices of Default.  Except as  disclosed  in Schedules 6 or 8, each of
         the Vendor,  its  subsidiaries,  the  Corporations and their respective
         Branches  has not  received  any  Notices  of default  relating  to any
         material  Assets or any part of them  which  has not been  subsequently
         cured or waived  and, to the  knowledge  of the  Vendor,  all  relevant
         deposits,  rentals and royalties  have been paid within the  applicable
         permitted  time limits and all  obligations  and covenants  required to
         keep the Leases in full force and effect and in good standing have been
         performed and observed in connection with the Business or otherwise;

(w)      Drilling  Practices.  Except for  operations  under the Talara  License
         Contract,  to the  knowledge  of the  Vendor,  the Lands that have been
         drilled and, if completed,  subsequently  operated by the Vendor or the
         operator of the Lands,  in accordance with good oilfield  practice,  in
         compliance  with the applicable  Laws and in accordance  with the terms
         and conditions of all agreements applicable thereto;

(x)      Payments of Taxes.  Taxes, other than income taxes,  payable in respect
         of  the  Assets  operated  by  the  Vendor,   its   subsidiaries,   the
         Corporations or their Branches, as the case may be, up to the Effective
         Time  (including all prior years) have been properly and fully paid and
         discharged,  such that  there are no unpaid  Taxes  which have or could
         result in a lien,  charge  or other  Encumbrance  on the  Assets or the
         Purchased  Shares,  except as described  (and accrued) in the Financial
         Statements or in the Interim Balance Sheet;

(y)      Reduction of Interests. To the knowledge of the Vendor, information and
         belief, the working interests set forth in Schedule 6 in respect of the
         Leases are not  subject to  reduction  on any account  whatsoever  as a
         result of  actions  or  omissions  taken or  omitted to be taken by the
         Vendor or any other Person on its behalf,  and none of the Encumbrances
         described  in  Schedule 16 are  convertible  or subject to change to an
         interest of any other size or nature,  except as specifically set forth
         in Schedule 16;

(z)      Tangible  Assets.  To the knowledge of the Vendor,  the tangible Assets
         operated by the Vendor, taken as a whole, have been maintained by it in
         accordance with good oilfield  practice,  in compliance with applicable
         Laws and in accordance  with the terms and conditions of all agreements
         applicable thereto;



<PAGE>


                                                     - 27 -


(aa)     Sale/Leasebacks.  At the Closing Date, the tangible Assets shall not be
         subject to any lease, leaseback or sale/leaseback arrangements,  except
         as set forth in Schedule 6;

(bb)     Defaults under Regulations.  Except as set forth in Schedule 12, to the
         knowledge of the Vendor,  its subsidiaries,  the Corporations and their
         respective Branches have not received any Notices of any breach by them
         of any  applicable  Laws in  relation  to the  Assets or the  operation
         thereof,   including   those   pertaining  to  the  protection  of  the
         Environment;

(cc)     Oil or Gas  Balancing  Agreements.  Except as set forth in  Schedule 6,
         neither  the  Vendor,  its  subsidiaries,  the  Corporations  or  their
         respective  Branches  have entered into any  agreement or  arrangements
         commonly known as an oil or gas balancing,  swaps,  over- production or
         underlift-overlift  agreements or  arrangements  by any other Person on
         their behalf, which are among two or more Persons owning interests in a
         portion of the Lands,  or pooled or  unitized  therewith,  nor,  to the
         knowledge  of the  Vendor  and the  Corporations,  has  there  been any
         circumstance  or case  whereby one of such  Persons  has taken,  or may
         hereafter take, a share of the production of Petroleum  Substances from
         such Lands greater than it would  otherwise be entitled to by virtue of
         its interest in such Lands and which excess  taking  entitled the other
         Persons  to a  credit  in  respect  of  subsequent  production  of  the
         Purchaser's  Petroleum  Substances  produced  from such  Lands by which
         Vendor or the Purchaser are bound;

(dd)     Areas  Of  Mutual  Interest.  There  are no areas  of  mutual  interest
         provisions  applicable  to and  binding  upon  the  Vendor,  except  as
         disclosed  to the  Purchaser  on or before the Closing and set forth in
         Schedule 6;

(ee)     Documents.  All Leases are set forth on Schedule 6;

(ff)     Assets  Subject to  Obligations.  The Assets  are not  affected  by any
         "take" or "pay" obligations;

(gg)     Abandoned Wells. To the knowledge of the Vendor, Schedule 12 includes a
         list of all oil and gas  wells  on the  Lands  that  have  been  either
         plugged and abandoned,  or drilled and abandoned,  in which the Vendor,
         its subsidiaries,  the Corporations or their respective Branches had or
         now have an interest and which  Authorization,  if  required,  has been
         obtained for each such well from the applicable Governmental Entity;

(hh)     Allowables.  To the  knowledge  of the Vendor,  none of the oil and gas
         wells operated by the Vendor,  its  subsidiaries,  the  Corporations or
         their respective  Branches on the Lands have been produced in excess of
         applicable  production  allowables imposed by applicable Laws since the
         Vendor,  the  Corporations or their  respective  Branches  acquired its
         interest  therein.  Such  oil and gas  wells  are  not  subject  to any
         production  penalty  and,  to the  knowledge  of  the  Vendor  and  the
         Corporations,  it is not aware of any impending  change in  statutorily
         imposed or  sanctioned  production  allowables  imposed  by  applicable
         Governmental  Entities  currently  applicable to any of the oil and gas
         wells other than changes which are in the public domain;




<PAGE>


                                                     - 28 -

(ii)     No Options,  etc. No Person has any written or oral agreement,  option,
         understanding  or  commitment,  or any right or  privilege  capable  of
         becoming such for the purchase from any of the  Corporations  of any of
         the Assets,  other than  pursuant to  purchase  orders  accepted by the
         Corporations  in  the  ordinary  course  of  the  Business,  and to the
         Override right of Carbopetrol S.A. disclosed in Schedule 6.

(jj)     Accounts.

         (i)      Accounts  Receivable.  To the  knowledge  of the  Vendor,  all
                  Accounts   Receivable  are  bona  fide,  and,  subject  to  an
                  allowance for doubtful  accounts taken in accordance with U.S.
                  GAAP,  collectible  without  set-off  or  counterclaim  and  a
                  complete  and  accurate   list  of  all  Accounts   Receivable
                  outstanding as at January 31, 1997 indicating  which have been
                  unpaid for 30, 60, 90 and greater  than 120 days is set out in
                  Schedule 1;

         (ii)     Accounts Payable. To the knowledge of the Vendor, the accounts
                  payable  set forth in  Schedule 1 is a complete  and  accurate
                  list of all accounts  payable by the  Corporations  indicating
                  which have been  unpaid for 30,  60, 90 and  greater  than 120
                  days as at January 31, 1997; and

         (iii)    Intercompany   Debt.   Intercompany   Debt  does  not   exceed
                  $3,000,000,  which  amount  is  represented  by the  Colombian
                  Debenture.

(kk)     Real Property.

         (i)      Each of the  Corporations  is not the  owner  of, or under any
                  agreement or option to own, any real  property or any interest
                  therein,  other  than as  referred  to in  Schedule  6 and the
                  Leases;

         (ii)     To the knowledge of the Vendor,  except as set out in Schedule
                  6, all of the Buildings  and Fixtures on the Lands,  the Owned
                  Properties  and the Leased  Properties,  in totality  (A) were
                  constructed in accordance  with all  applicable  Laws and with
                  all  Authorizations  validly issued pursuant thereto;  (B) are
                  generally in good  operating  condition and in a state of good
                  maintenance and repair;  and (C) are adequate and suitable for
                  the purposes for which they are presently being used; and with
                  respect to each (and to the Lands,  the Owned  Properties  and
                  the  Leased  Properties),   the  appropriate  Corporation  has
                  adequate rights of ingress and egress for the operation of the
                  Business  in the  ordinary  course,  except  for the  Peruvian
                  Property.  To the knowledge of the Vendor,  none of the Lands,
                  the Owned  Properties,  the Leased Properties or the Buildings
                  and Fixtures  thereon,  nor the use,  operation or maintenance
                  thereof for the purpose of carrying on the Business,  violates
                  any  restrictive  covenant  or any  provision  of  any  Law or
                  encroaches  on any  property  owned by any  other  Person.  No
                  condemnation or expropriation proceeding is pending or, to the
                  knowledge of the Vendor or the Corporations,  threatened which
                  would  preclude or impair the use of any such  property or any
                  part thereof for the purposes for which it is currently  used.
                  Except as set forth in Schedule 12,  there are no  outstanding
                  written work orders with respect to any of



<PAGE>


                                                     - 29 -

                  the  Assets  from  or  required  by any  municipality,  police
                  department,  fire  department,  sanitation,  health  or safety
                  authorities or from any other Governmental  Entity and, to the
                  knowledge of the Vendor, there are no matters under discussion
                  with or by the Corporations relating to work orders.

(ll)     Leases.  Each of the  Corporations  is not a party  to,  or  under  any
         agreement  or option to become a party to,  any lease  with  respect to
         real property used or to be used in the Business, other than the Leases
         or leases with respect to the Lease  Properties.  Each Lease is in good
         standing,  creates  a good and  valid  leasehold  estate  in the  Lands
         thereby  demised  and is in full  force and  effect  without  amendment
         thereto, except as disclosed in Schedule 6. With respect to each Lease,
         except as set forth in Schedule 6:

          (i)       all rents and  additional  rents due to the date hereof have
                    been paid;

          (ii)      neither the lessee,  nor to the knowledge of the Vendor, the
                    lessor is in default thereunder;

          (iii)     no  waiver,  indulgence  or  postponement  of  the  lessee's
                    obligations  thereunder has been granted by the lessor which
                    adversely  affects the  Corporations  rights and obligations
                    under the Lease;

          (iv)      to the  knowledge  of the Vendor,  there  exists no event of
                    default or event,  occurrence,  condition or act  (including
                    the purchase of the Purchased Shares  hereunder) which, with
                    the  giving  of  notice,  the lapse of time  would  become a
                    default under such Lease;

          (v)       each of the  Corporations  has not  violated  (except to the
                    extent  subsequently  cured) any of the terms or  conditions
                    under any such Lease in any material respect; and

          (vi)      to the knowledge of the  Corporations,  all of the covenants
                    to be performed by any other party under any such Lease have
                    been fully performed.

         To the knowledge of the Vendor,  each of the Leased  Properties,  other
         than with respect to vehicles,  is in a state of good  maintenance  and
         repair, normal wear and tear excepted, and is adequate and suitable for
         the purposes for which it is presently being used.

         True,  correct and complete  copies of the Leases have been provided to
         the Purchaser. Schedule 6 contains a true, correct and complete list of
         all of the Leases,  together with a brief and accurate  description  of
         each Lease,  including  the  material  terms  thereof,  the term of the
         Lease, any rights of renewal and the term thereof, and any restrictions
         on assignment.




<PAGE>


                                                     - 30 -

(mm)     Material  Contracts.  Schedule 6 contains a list all  Contracts  (other
         than Leases or leases of Leased  Properties) of the Corporations  which
         involve the expenditure of more than $25,000 or have a term left to run
         of more  than 90 days  with a  minimum  payment  to be made of  $10,000
         thereunder.  Except as set forth in  Schedules 6 or 8 and the  specific
         thresholds set forth below,  each of the Corporations is not a party to
         or bound by:

          (i)       any agreement or commitment relating to capital expenditures
                    more than $25,000;

          (ii)      any bonds,  debentures,  mortgages,  notes or other  similar
                    indebtedness  or liabilities  whatsoever or any agreement to
                    create or issue any bonds, debentures,  mortgages,  notes or
                    other similar indebtedness more than $10,000;

          (iii)     any  guarantee or other  contingent  liability in respect of
                    any indebtedness or obligation of any other Person;

          (iv)      any management, consulting or any other similar agreement or
                    commitment;

          (v)       any  agreement  or  commitment  limiting  the freedom of the
                    Corporations  or the owner of the Assets or the  Business to
                    engage in any line of business or to compete  with any other
                    Person;

          (vi)      any licensing or other  agreement or commitment  relating to
                    intellectual  property  used  by  the  Corporations  in  the
                    conduct of its Business; and

          (vii)     any agreement or  arrangement  with any Person with whom the
                    Corporations  or the  Vendor  (or  their  present  or former
                    directors,  officers and  employees)  does not deal at arm's
                    length within the meaning of the Internal Revenue Code.

         except for the Contracts,  the Leases, the Collective  Agreements,  the
         insurance  policies described in Schedule 15, the Pension Plans and the
         Benefit Plans.

(nn)     No Breach of  Contracts.  Each of the  Contracts  listed in Schedule 6,
         except as specifically  set forth in such Schedules 6, is in full force
         and effect and there exists no material  default or event of default or
         event,  occurrence,  condition  or act  (including  the purchase of the
         Purchased  Shares  hereunder)  which,  with the giving of notice or the
         lapse of time would  become a default  or event of default  thereunder.
         Each of the Corporations has not violated or breached,  in any material
         respect,  except to the extent  specifically cured, any of the terms or
         conditions  of any Contract  listed on Schedule 6, and to the knowledge
         of the Vendor and the  Corporations,  all the covenants to be performed
         by any other  party  thereto  have  been  materially  performed.  True,
         correct  and  complete  copies of all Leases set out on Schedule 6 have
         been delivered to the Purchaser and all other written Contracts set out
         thereon have been delivered or made available to the Purchaser.

(oo)     Intellectual Property Rights. The Intellectual Properties used in whole
         or in part in, or required  for the carrying on, of the Business in the
         manner  heretofore  carried on are set out in  Schedule 9 and are owned
         by, or validly  licensed to, the  Corporations as indicated in Schedule
         9. Except as otherwise expressly stated in Schedule 9, each of the



<PAGE>


                                                     - 31 -

         Corporations  (iii) has the  exclusive  right to use such  Intellectual
         Properties, (iv) is the owner of record of such Intellectual Properties
         except as set out in Schedule 9, and (v) has not conveyed,  assigned or
         encumbered any of them so as to interfere in any way with the operation
         of the  Business by the  Purchaser or its ability to use any of them as
         provided  for  herein.  All  registrations  and  filings  necessary  to
         preserve the rights of the Corporations in the Intellectual  Properties
         in Colombia  and Peru have been made and are in good  standing.  To the
         knowledge  of the  Vendor  and the  Corporations,  the  conduct  of the
         Business  does not infringe  upon the  intellectual  properties  of any
         other Person.

(pp)     Inventories.  All  Inventories  of the  Corporations  reflected  in the
         Interim Financial Statements or acquired after the date thereof and not
         subsequently  disposed of in the ordinary  course of the Business taken
         as a whole are  merchantable and fit for the specific purpose for which
         they are to be used at levels  sufficient for the  continuation  of the
         Business in the  ordinary  course in the manner  carried on at the date
         hereof.  The  value  of such  Inventories  (determined  and  valued  in
         accordance   with  the  policies,   practices  and  procedures  of  the
         Corporations  set forth on  Schedule 2 which  policies,  practices  and
         procedures are hereby  incorporated  by reference and forms an integral
         part of this Agreement) is not less than the value shown on the balance
         sheet forming part of the Interim Financial Statements.

(qq)     Subsidiaries.   Each  of  the   Corporations  has  no  subsidiaries  or
         agreements  of any nature to acquire  any  subsidiary  or to acquire or
         lease any other business operations.

FINANCIAL MATTERS

(rr)     Books and Records. Except for revenues and direct operating expenses of
         the Peruvian Subsidiary, all Books and Records of the Corporations have
         substantially  been,  properly  and  accurately  kept and  completed in
         accordance  with U.S.  GAAP and there are no material  inaccuracies  or
         discrepancies  of  any  kind  contained  or  reflected   therein.   The
         Corporations' records,  systems,  controls, data or information are not
         recorded,  stored,  maintained,  operated or otherwise wholly or partly
         dependent  upon  or  held  by  any  means  (including  any  electronic,
         mechanical or photographic process,  whether computerized or not) which
         (including all means of access thereto and therefrom) are not under the
         exclusive ownership and direct control of the Corporations.

(ss)     Financial Statements.  The Financial Statements have been prepared on a
         basis  consistent  with those of previous  fiscal  years and except for
         revenues and direct operating  expenses of the Peruvian  Subsidiary are
         in accordance  with U.S. GAAP (subject to any  exceptions  set forth in
         Schedule 1) and present fairly:

          (i)       the  Assets,   liabilities,   (whether  accrued,   absolute,
                    contingent  or  otherwise)  and  financial  condition of the
                    Corporations  as at the  respective  dates  of the  relevant
                    statements;

          (ii)      the  financial  position  of  the  Corporations  as  at  the
                    respective dates of the relevant statements; and




<PAGE>


                                                     - 32 -

          (iii)     the  sales  and  earnings  of the  Corporations  during  the
                    periods  covered  by the  Financial  Statements  or  Interim
                    Financial Statements, as the case may be.

         The Parties  hereto  agree that the  Environmental  Claims set forth in
         Schedule  12 are  not  to be set  forth  in the  Financial  Statements.
         Complete copies of the Financial  Statements and the Interim  Financial
         Statements are attached as Schedule 1. The Interim Financial Statements
         of the  Corporations  disclose no material  changes from the  Financial
         Statements.

(tt)     Tax Pool Amount.  The Tax Pool Amount is not less than $20,000,000.

PARTICULAR MATTERS RELATING TO THE BUSINESS

(uu)     Employees.

         (i)      Each  of the  Corporations  is in  compliance  with  all  Laws
                  respecting  employment  and  employment  practices,  terms and
                  conditions of  employment,  pay equity and wages and hours and
                  has not and is not  engaged  in any  unfair  labour  practice,
                  which non compliance would not materially adversely affect the
                  Business.

         (ii)     No unfair labour practice,  complaint or grievance against the
                  Corporations   is  pending  or,  to  the   knowledge   of  the
                  Corporations,  threatened before any labour relations board or
                  similar Governmental Entity with respect to the Business.

         (iii)    There is no  labour  strike,  dispute,  slowdown  or  stoppage
                  actually  pending or  involving  or, to the  knowledge  of the
                  Corporations,   Threatened   against   the   Vendor   and  the
                  Corporations with respect to its Business.

         (iv)     No  union   representation   question  exists  respecting  the
                  employees of the Corporations in connection with its Business.

         (v)      Each of the  Corporations  has never maintained or contributed
                  to (x) a multi-employer plan as defined under section 3(37) of
                  ERISA;  or (y) a defined benefit plan as defined under section
                  3(35) of ERISA; or (z) a plan to which section 302 of ERISA or
                  section 412 of the Internal Revenue Code applies.

         (vi)     No grievance  which might have a material  adverse effect upon
                  the  Corporations  or the conduct of its Business  exists,  no
                  arbitration  proceeding arising out of or under any Collective
                  Agreement is pending, and no claim therefor has been asserted.

         (vii)    No  collective   bargaining   agreement  is  currently   being
                  negotiated by the  Corporations  with respect to any employees
                  of the  Corporations  and the only  collective  agreements  in
                  force  with  respect  to  its  employees  are  the  Collective
                  Agreements,  true,  correct and complete  copies of which have
                  been provided to the Purchaser.




<PAGE>


                                                     - 33 -

         (viii)   Schedule 17 contains a complete list of all permanent and full
                  time  employees  of the  Corporations  earning  in  excess  of
                  $10,000 on an annual  basis,  their  salaries  and wage rates,
                  bonus arrangements, benefits, positions and length of service.
                  Schedule 17 provides a correct and  complete  list showing all
                  amounts  due or accrued due for all  salary,  wages,  bonuses,
                  commissions,  vacation  with pay,  pension  benefits  or other
                  employee benefits relating to all employees.

         (ix)     No employee of the Corporations has any agreement as to length
                  of notice required to terminate his or her  employment,  other
                  than such as results by law from the employment of an employee
                  without  agreement  as to  such  notice  or as  to  length  of
                  employment, except as set forth in Schedule 17.

         (x)      All wages and  associated  benefits to which an  employee  was
                  entitled  to be paid on or prior to Closing  have been paid in
                  full and all  vacation  pay  (including  all accrued  vacation
                  pay), bonuses, commissions and other employee benefit payments
                  are  reflected  and have been accrued in the Books and Records
                  of the Corporations.


         (xi)     The only benefit plans existing in respect of the employees of
                  the  Corporations  are the Benefit Plans disclosed in Schedule
                  17. True,  correct and complete  copies of all written Benefit
                  Plans and  related  documentation  have been  provided  to the
                  Purchaser and any oral or written Benefit Plans are accurately
                  described  on  Schedule   17.  The  Benefit   Plans  are  duly
                  registered  where required by, and are in good standing under,
                  all  applicable  Laws.  All  required  employer  and  employee
                  contributions and premiums under the Benefit Plans to the date
                  hereof have been made, and no past service funding liabilities
                  exist  thereunder.  Except  as set  out in  Schedule  17,  all
                  Benefit  Plans are fully funded both on a going concern and on
                  a solvency basis.

         (xii)    The only pension plans existing in respect of the employees of
                  the  Corporations  are the Pension Plans disclosed in Schedule
                  17. True, correct and complete copies of all Pension Plans and
                  related  documentation  (including trust  agreements,  funding
                  agreements,  actuarial  reports and  investment  reports) have
                  been  provided to the  Purchaser.  The Pension  Plans are duly
                  registered  where required by, and are in good standing under,
                  all applicable  Laws  including the Internal  Revenue Code and
                  ERISA  and  all  applicable  policies.  Except  as set  out in
                  Schedule 17, all required employer and employee  contributions
                  and premiums  under the Pension  Plans to the date hereof have
                  been made, the respective fund or funds  established under the
                  Pension Plans are funded in accordance  with  applicable  Laws
                  and the  rules  of the  Pension  Plans,  and no  past  service
                  funding liabilities exist thereunder.

         (xiii)   None of the Benefit Plans,  nor any trust created  thereunder,
                  nor any trustee or administrator  thereof,  has engaged in any
                  "prohibited  transaction"  as defined in Section 406 of ERISA,
                  or Section 4975 of the Internal Revenue Code. The 401k Plan is
                  (A)  "qualified"  within the meaning of Section  401(a) of the
                  Internal  Revenue Code;  (B) no facts or  circumstances  exist
                  which would adversely  affect the qualified status of the 401k
                  Plan; and (C) the trust established pursuant to the



<PAGE>


                                                     - 34 -

                  401k Plan is tax exempt under  section  501(a) of the Internal
                  Revenue Code.  No matter  relating to any of the Benefit Plans
                  is pending before any court or government agency.  Each of the
                  Benefit  Plans  which is group  health  plans,  as  defined in
                  Section 4980(B) of the Internal Revenue Code, is in compliance
                  with the requirements of Internal Revenue Code Section 4980(B)
                  and Part 6 of Subtitle B of Title I of ERISA.

         (xiv)    No payments have been made or authorized since the date of the
                  Financial  Statements  by the  Corporations  to its  officers,
                  directors,  former directors,  shareholders or employees or to
                  any  Person  not  dealing  at arm's  length  (as such  term is
                  construed  under the  Internal  Revenue  Code) with any of the
                  foregoing,  except in the ordinary  course of the Business and
                  at the  regular  rates  payable  to them of  salary,  pension,
                  bonuses, rents or other remuneration of any nature.

         (xv)     The  Corporations  are in compliance with the  requirements of
                  the Workers  Adjustment  and Retraining  Notification  Act and
                  have no liabilities pursuant to such legislation.

(vv)              Insurance. Schedule 15 contains a correct and complete list of
                  insurance  policies which are  maintained by the  Corporations
                  with  respect to the  Business,  its  Assets,  employees,  and
                  otherwise,  together  with a brief  description  of each  such
                  policy including the type of policy, name of insurer, coverage
                  allowance,  expiration dates,  annual premiums and any pending
                  Claims thereunder.  Each of the Corporations is not in default
                  with  respect to the  payment of any  premiums  under any such
                  insurance  policy  and has not failed to give any notice or to
                  present any Claim under any such insurance policy in a due and
                  timely fashion.  Each of the  Corporations is not aware of any
                  circumstances  in respect of which any Person may make a Claim
                  against the Corporations, whether covered by insurance or not.
                  Such  policies  of  insurance  coverage  are in full force and
                  effect free from any right of  termination  on the part of the
                  insurers,  except upon notice as stipulated in such  policies.
                  True,  correct and complete copies of such insurance  policies
                  and the most recent inspection reports received from insurance
                  underwriters  have been  delivered  or made  available  to the
                  Purchaser  and are listed in Schedule  15.  There has not been
                  any  material  adverse  change  in  the  relationship  of  the
                  Corporations with its insurers,  the availability of coverage,
                  or in the premiums payable pursuant to such policies.  Part of
                  Schedule  15 is a list  setting  forth  any and  all  material
                  Claims, with reasonable  particulars,  made under any policies
                  of  insurance   maintained  by  or  for  the  benefit  of  the
                  Corporations over the past two (2) calendar years prior to the
                  date hereof.

(ww)              Litigation.  There is no action, suit or proceeding, at law or
                  in equity, by any Person, nor any arbitration,  administrative
                  or other  proceeding  by or before (or to the knowledge of the
                  Vendor  and  the  Corporations  any   investigation   by)  any
                  Governmental  Entity  pending,  or,  to the  knowledge  of the
                  Vendor or the  Corporations,  Threatened  against or affecting
                  the  Corporations,  its Branches or any of its  properties  or
                  rights or any of the  Assets,  and  neither the Vendor nor the
                  Corporations  know of any  valid  basis  for any such  action,
                  suit,  proceeding,  arbitration  or  investigation,  except as
                  disclosed and set forth in Schedule 19, which provides a true,
                  correct and complete list of all such proceedings. Each of the



<PAGE>


                                                     - 35 -

                  Corporations  and its Branches is not subject to any judgment,
                  order or decree  entered in any lawsuit or  proceeding  in any
                  jurisdiction.

(xx)     Taxes.

         (i)      Each of the  Corporations  has  filed or  caused  to be filed,
                  within the times and within the manner  prescribed by Law, all
                  federal, state, provincial,  local and foreign tax returns and
                  tax reports  which are  required to be filed prior to the date
                  hereof by or with respect to the Corporations. The information
                  contained  in such returns and reports is correct and complete
                  and such returns and reports reflect  accurately all liability
                  for Taxes of the Corporations for the periods covered thereby.
                  All  foreign  federal,  state,  provincial  and local  income,
                  profits,  franchise,  sales, use, occupancy,  excise and other
                  Taxes and assessments  (including interest and penalties) that
                  are or may become payable by or due from the Corporations have
                  been fully paid or fully  disclosed and fully  provided for in
                  the  Books  and  Records  and the  Financial  Statements.  The
                  federal  income tax  liability  of the  Corporations  has been
                  assessed,  paid  or  accrued  for  all  fiscal  years  to  and
                  including  its fiscal year ended on the date of the  Financial
                  Statements.   No   examination   of  any  Tax  Return  of  the
                  Corporations   is  currently   in   progress,   there  are  no
                  outstanding  agreements  or waivers  extending  the  statutory
                  period  providing for an extension of time with respect to the
                  assessment  or  re-assessment  of Tax or the filing of any Tax
                  Return by, or any payment of any Tax by the Corporations,  and
                  there are no Claims  now  Threatened  or pending  against  the
                  Corporations   in  respect  of  Taxes  or  any  matters  under
                  discussion  with any  Governmental  Entity  relating to Taxes.
                  Each of the  Corporations  has withheld from each payment made
                  by it the amount of all Taxes and other deductions required to
                  be  withheld  therefrom  and has paid  the same to the  proper
                  taxing or other authority within the time prescribed under any
                  applicable Law.

         (ii)     The Vendor has forwarded to the Purchaser a  determination  of
                  the Tax  basis  of the  Vendor  in the  Assets  of each of the
                  Colombian Subsidiary and Peruvian Subsidiary.

(yy)     Bank  Accounts and Powers of  Attorney.  Schedule 11 contains a correct
         and  complete  list showing (vi) the name of each bank in which each of
         the  Corporations  has an account or safe  deposit box and the names of
         all Persons  authorized to draw thereon or to have access thereto;  and
         (vii) the names of any  Persons  holding  powers of  attorney  from the
         Corporations and a summary statement of the terms thereof.

(zz)     Full Disclosure. To the knowledge of the Vendor, none of this Agreement
         or any Ancillary  Agreement or any  certificate or statement in writing
         which has been  supplied  by or on behalf  of the  Corporations  or the
         Vendor  or by  any of  the  directors,  officers  or  employees  of the
         Corporations  or  the  Vendor  in  connection  with  the   transactions
         contemplated  hereby contains any untrue  statement of a material fact,
         or omits any  statement of a material  fact  necessary in order to make
         the  statements  contained  herein or therein  not  misleading.  To the
         knowledge, information and belief of the Vendor, there is no fact known
         to the Corporations or the Vendor which may materially and adversely



<PAGE>


                                                     - 36 -

         affects the affairs, businesses,  prospects operations or conditions of
         the  Corporations,  financial  or  otherwise,  or the  Business  or the
         Assets,  or which might  reasonably  be expected to deter the Purchaser
         from   completing   the   transaction   of  purchase  and  sale  herein
         contemplated, which has not been set forth in this Agreement.

(aaa)    Halliburton.  There  is  no  legally  binding  agreement,  arrangement,
         obligation, commitment or understanding between the Vendor or either of
         the Companies and Halliburton  Energy  Services and/or  Halliburton del
         Peru  S.A.  (together,  "Halliburton")  relating  to the  provision  of
         turn-key  services to any of the  Corporations by Halliburton or any of
         its Affiliates.  Halliburton and its Affiliates, have not received, and
         there  is  no  legally  binding  agreement,  arrangement,   obligation,
         commitment or  undertaking  relating to receipt of, any interest in the
         Business or the Corporations, including any participation in the income
         of the  Corporations  or the Business.  As at the Time of Closing,  all
         financial  obligations  of the  Corporations  to  Halliburton,  and its
         Affiliates,  relating to the Business or  otherwise,  do not exceed the
         sum of $626,000, of which approximately  $426,000 is evidenced by notes
         issued by the Peruvian  Subsidiary,  details of which notes are set out
         in Schedule 1.

MATTERS RELATING TO THE COLOMBIAN SUBSIDIARY

(bbb)    Ecopetrol and Petroleros Del Norte.  As at the Time of Closing,  except
         to the extent  disclosed  in  Schedule  6, there is no  entitlement  by
         Ecopetrol  or  Petroleros  Del Norte to any  production  or  revenue in
         excess  of  its  respective  working  interest   percentage  under  any
         association  or  joint  venture  agreement,  arrangement,   obligation,
         commitment  understanding  or  other  Contract  relating  thereto  with
         respect to the Business of the Colombian Subsidiary, the particulars of
         which working interest are set forth in Schedule 20, and there has been
         no challenge by Ecopetrol and Petroleros Del Norte to the status of the
         Colombian  Subsidiary  or as owner  and/or  operator  of the  Colombian
         properties.

(ccc)    Puli Association Contract and other Matters.

         (i)      Except  with  respect to the Puli  Association  Contract,  the
                  Colombian   Subsidiary  and  its  Branch  has  no  contractual
                  relationship  with  Ecopetrol,  other  than in  respect of the
                  property  known as  Lagunillas,  which  obligation  in respect
                  thereof do not exceed $15,000 unless the Colombian  subsidiary
                  elects to exploit the prospect.

         (ii)     To the knowledge of the Vendor,  there has not been any breach
                  of,  or any  existing  grounds  for  termination,  rescission,
                  avoidance or repudiation of, the Puli Association  Contract or
                  of any threat or allegation  thereof,  except any breach which
                  has been cured, and such contract is not invalid;




<PAGE>


                                                     - 37 -

         (iii)    The Colombian Subsidiary, through its Branch, has obtained all
                  material   Authorizations  and  other  approvals  required  by
                  applicable  Laws for or in connection  with the carrying on of
                  the project for  exploration  and  exploitation  of  Petroleum
                  Substances  under the Puli  Association  Contract  through the
                  date hereof,  and such  Authorizations  and  approvals are not
                  limited in  duration,  other than the actual  duration  of the
                  Puli  Association  Contract,  and are materially in full force
                  and effect as of the date hereof;

         (iv)     All material  Authorizations  and other approvals required for
                  or  in  connection  with  the  Business  in  Colombia  by  the
                  Colombian  Subsidiary,  through  its  Branch,  are  listed  in
                  Schedule 13 and are in full force and effect and all  material
                  reports,  returns  and  information  required  by  Law or as a
                  condition of any such  Authorization  or other  approval to be
                  made  or  given  to  any  Person  or in  connection  with  the
                  Business,  as of the date hereof, of the Colombian  Subsidiary
                  through its Branch in Colombia, have been made or given to the
                  appropriate  Person  or  Governmental  Entity  and there is no
                  circumstance  which indicates that any such  Authorization  or
                  approval  is likely to be  revoked or which may confer a right
                  of revocation; and

         (v)      To the  knowledge  of the Vendor,  no  Authorization  or other
                  approval is required for or in  connection  with giving effect
                  to the Agreement and the transactions  contemplated  hereunder
                  by any applicable Law or by any Governmental  Entity including
                  the  Colombian  Ministry of Mines and Energy and  Ecopetrol or
                  under the Puli Association Contract.

(ddd)    Payments under Royalty and Option Agreement.  No payments of monies was
         made from the date of  execution  of the  Agreement in Principle to and
         including the Closing Date by or on behalf of  Carbopetrol  S.A. to the
         Vendor,  any  of  its  subsidiaries  or  Affiliates  or  the  Colombian
         Subsidiary in connection with the existing royalty and option agreement
         between  Carbopetrol  S.A. and the Colombian  Subsidiary  involving the
         Chicoral Formation.

MATTERS RELATING TO THE PERUVIAN SUBSIDIARY

(eee)    GMP. There is no legally binding  agreement,  arrangement,  obligation,
         commitment or understanding  between the Vendor and GMP relating to the
         provision of turn-key services to any of the Corporations by GMP or any
         of its Affiliates.  GMP, and its Affiliates, have has not received, and
         there is no legally  binding  agreement,  arrangement or  understanding
         relating  to the  receipt  of,  any  interest  in the  Business  or the
         Corporations, including any participation in the income of the Business
         or the Corporations.  As at the Time of Closing,  any and all financial
         obligations of the Corporations to GMP, and its Affiliates, relating to
         the Business or otherwise, do not exceed the sum of $383,000.




<PAGE>


                                                     - 38 -

OTHER MATTERS

(fff)    U.S.  Securities Law  Representations.  The Vendor is acquiring the MIP
         Shares,  the Colombian  Debenture and will acquire the common shares of
         Purchaser  issuable  upon  exchange  of the  Colombian  Debenture  (the
         "Exchange  Shares")  for its own  account  for  investment  and with no
         present  intention of  distributing or reselling such securities or any
         part  thereof.  The  Vendor  acknowledges  that  the  MIP  Shares,  the
         Colombian  Debenture and the Exchange  Shares have not been  registered
         under the Securities Act of 1933, as amended (the "Securities Act"), or
         the securities  laws of any state of the United States,  and may not be
         transferred  in the  United  States  except  pursuant  to an  effective
         registration  statement  under the Securities Act and applicable  state
         law or an available exemption therefrom.  Subject to Section 7.4, it is
         acknowledged  that a sale of the  Common  Shares on The  Toronto  Stock
         Exchange is not a violation of this representation.

3.2  Information  Known by  Purchaser.  To the  extent  that the  Purchaser  has
knowledge of any breach of any  representation  or warranty of the Vendor and/or
the  Corporations  set forth in Section 3.1 hereof as at the Time of Closing and
the Vendor does not have actual  knowledge  which it believes is contrary to the
knowledge of the Purchaser, then the Purchaser shall be estopped from claiming a
breach of any such representation and warranty hereunder.

                                    ARTICLE 4

                 REPRESENTATIONS AND WARRANTIES OF THE PURCHASER

4.1  Representations and Warranties of the Purchaser.  The Purchaser  represents
and warrants as follows to the Vendor and  acknowledges  and  confirms  that the
Vendor is relying on such  representations and warranties in connection with the
sale by the Vendor of the Purchased Shares:

(a)      Due  Incorporation  and  Existence.  The  Purchaser  is  a  corporation
         incorporated  and existing  under the laws of the Cayman  Islands.  The
         common shares of the Purchaser are listed and posted for trading on The
         Toronto Stock Exchange.

(b)      Validity of Agreements. The Purchaser has all necessary corporate power
         to enter into and to perform its  obligations  under this Agreement and
         the  Ancillary  Agreements  to  which  it is a  party.  The  execution,
         delivery and  performance  by the  Purchaser of this  Agreement and the
         Ancillary Agreements to which it is a party and the consummation of the
         transactions  contemplated  thereby  have been duly  authorized  by all
         necessary corporate action on the part of the Purchaser. This Agreement
         and the Ancillary  Agreements to which it is a party constitute  legal,
         valid and binding  obligations of the Purchaser  enforceable against it
         in accordance with their respective terms.

(c)      Restrictive Documents.  The Purchaser is not subject to, or a party to,
         any charter or by-law restriction,  any Law, any Claim, any contract or
         instrument,  any  Encumbrance  or any other  restriction of any kind or
         character  which  would  prevent   consummation  of  the   transactions
         contemplated by this Agreement except for:




<PAGE>


                                                     - 39 -

         (i)      the necessity of passing the  appropriate  resolutions  of the
                  directors  of the  Purchaser  to permit  the  purchase  of the
                  Purchased Shares; and

         (ii)     the  necessity of obtaining  approval  from The Toronto  Stock
                  Exchange and any other applicable regulatory approvals;

(d)      Purchaser's  Financing.  The  Purchaser  has, or at the Time of Closing
         will have, sufficient funds to complete the transaction of purchase and
         sale and to perform its obligations hereunder.

(e)      Authorized and Issued Capital.  The authorized capital of the Purchaser
         consists of  50,000,000  common  shares of which,  at the date  hereof,
         37,987,067  common shares have been duly issued and are  outstanding as
         fully  paid  and  non   assessable  and  after  giving  effect  to  the
         transaction hereunder,  47,720,867 common shares shall have been issued
         or reserved for issuance.

(f)      Conditional  Approval.  The Toronto Stock Exchange has accepted  notice
         for filing under  Section  19.09 of the General  By-laws of The Toronto
         Stock  Exchange  in  connection  with  the  transactions   contemplated
         hereunder  and has granted  conditional  approval  for the  issuance of
         4,384,375  MIP  Shares on Closing  and  1,000,000  MIP Shares  upon the
         exercise  of the  exchange  rights  by  the  holders  of the  Colombian
         Debenture,  (the final approval of which is subject to the satisfaction
         of certain conditions,  all as set out in the letter dated February 17,
         1997 from The Toronto Stock Exchange to counsel for the Purchaser).

(g)      Full  Disclosure.  To the  knowledge  of the  Purchaser,  none  of this
         Agreement or any Ancillary  Agreement,  any certificate or statement in
         writing  which has been supplied by or on behalf of the Purchaser or by
         any of the  directors,  officers  or  employees  of  the  Purchaser  in
         connection  with the  transactions  contemplated  hereby  contains  any
         untrue  statement  of a  material  fact , or omits any  statement  of a
         material  fact,  necessary  in order to make the  statements  contained
         herein or therein not misleading.

(h)      Litigation.  There  is no  action,  suit  or  proceeding,  at law or in
         equity,  by any Person,  nor any arbitration,  administrative  or other
         proceeding  by or before (or to the  knowledge  of the  Purchaser,  any
         investigation by) any Governmental Entity pending, or, to the knowledge
         of the Purchaser,  Threatened  against or affecting the Purchaser,  and
         the  Purchaser  does not know of any valid  basis for any such  action,
         suit,  proceeding,  arbitration or investigation.  The Purchaser is not
         subject to any  judgment,  order or decree  entered  in any  lawsuit or
         proceeding in any jurisdiction.

(i)      Listing.  The Common  shares of the Purchaser are listed and posted for
         trading on The Toronto  Stock  Exchange and the Purchaser is not, as of
         the  date  hereof,  in  default  of  any  of  the  requirements  of The
         Securities  Act  (Ontario)  or  the  regulations  thereto,  nor  is the
         Purchaser  on the list of  defaulting  reporting  issuers  pursuant  to
         Section 72(9) of the Securities Act (Ontario).




<PAGE>


                                                     - 40 -

(j)      No Breach of  Contracts.  As of the date  hereof,  each of the material
         contracts  of the  Purchaser  are in full  force and  effect  and there
         exists no default or event of default or event,  occurrence,  condition
         or act (including the purchase of the Purchased Shares by the Purchaser
         hereunder) which,  with the giving of notice,  the lapse of time or the
         happening  of any other event or  condition,  would become a default or
         event  of  default  thereunder.  The  Purchaser  has  not  violated  or
         breached,  in any  respect,  any  of the  terms  or  conditions  of any
         material  contract  and, to the  knowledge  of the  Purchaser,  all the
         covenants to be  performed  by any other party  thereto have been fully
         performed.

(k)      No  Material  Adverse  Change.  Since  the  date of the  third  quarter
         financial statements of the Purchaser,  there has been no change in the
         affairs,  assets,  liabilities,   business,  prospects,  operations  or
         condition of the Purchaser,  financial or otherwise, whether arising as
         a result of any  legislative  or regulatory  change,  revocation of any
         licence or right to do business, fire, explosion,  accident,  casualty,
         labour trouble, flood, drought, riot, storm, condemnation,  act of God,
         public force or otherwise,  which has materially  adversely affected or
         which will, to the  knowledge of the  Purchaser,  materially  adversely
         affect the Purchaser,  except for general economic conditions affecting
         the  Purchaser,  or the oil and gas  industry  in which  the  Purchaser
         operates, as the case may be, other than any material adverse charge of
         the Purchaser which has been previously disclosed to the Vendor.

(l)      Transferability.  The MIP  Shares  shall,  at the Time of  Closing,  be
         transferable, subject to any restrictions contained in this Agreement.

(m)      No  Pending  Mergers.  As of the  date  hereof,  the  Purchaser  is not
         currently contemplating any merger with, or acquisition or takeover of,
         any other  business,  nor is any such merger,  acquisition  or takeover
         currently pending, except as previously disclosed to the Vendor.

(n)      Escrow  Arrangements.  As of the date hereof,  to the  knowledge of the
         Purchaser,  1,243,001 common shares of the Purchaser are held in escrow
         pursuant  to the rules,  by-laws  and  policies  of The  Toronto  Stock
         Exchange  and no shares are held  pursuant to Lock-up  agreements.  The
         common  shares of the  Purchaser  held in escrow  are  scheduled  to be
         released  from  escrow  on a pro rata  basis of  33.33%  on each of the
         first, second and third anniversary dates of April 22, 1996.

(o)      No Pending Proceedings.  As of the date hereof, to the knowledge of the
         Purchaser,   there  is  no  existing  or  Threatened   proceedings   or
         investigations  against the Purchaser by The Toronto Stock  Exchange or
         by any other Canadian securities regulatory authority.

(p)      Investment  Purposes.  The Purchaser is acquiring the Purchased  Shares
         for  investment  and not  for  resale.  The  Purchased  Shares  are not
         registered under U.S. or state securities laws.

(q)      Reserves.  The Purchaser  acknowledges  that neither the Vendor nor the
         Corporations have made any  representation to Purchaser with respect to
         oil and natural gas reserves.


                                    ARTICLE 5




<PAGE>


                                                     - 41 -

                                     CLOSING

5.1  Date,  Time and  Place  of  Closing.  The  completion  of the  transactions
contemplated  by this  Agreement  shall take place at the offices of Snow Becker
Krauss P.C., 605 Third Avenue,  New York, New York, at the Time of Closing or at
such other  place,  on such other date,  and at such other time as may be agreed
upon in writing between the Vendor and the Purchaser.

5.2  Closing  Procedures.  At the Time of Closing  the Vendor  shall  deliver or
caused to be delivered  actual  possession of the Purchased Shares and upon such
deliveries  the Purchaser  shall pay or satisfy the Purchase Price in accordance
with Section 2.2. The transfer of possession  of the  Purchased  Shares shall be
deemed to take effect as at the Effective Time on the Closing Date.

(a)      At Closing,  the Vendor  shall  deliver or cause to be delivered to the
         Purchaser,  unless otherwise waived by the Purchaser,  the following in
         form and  substance  satisfactory  to the  Purchaser  and its  counsel,
         acting reasonably:

         (i)      share  certificates  representing  the  Purchased  Shares duly
                  endorsed in blank for transfer,  or accompanied by irrevocable
                  security  transfer  powers of attorney duly executed in blank,
                  in either case by the holders of record thereof, together with
                  evidence  satisfactory  to the Purchaser that the Purchaser or
                  its  nominee(s)  have been duly  entered upon the books of the
                  Corporations as the holder of the Purchased Shares;

         (ii)     certified  copies of (A) the charter  documents  and  extracts
                  from the  by-laws of each of the  Vendor and the  Corporations
                  relating to the execution of documents; (B) all resolutions of
                  the   shareholders,   the  board  of  directors  or  any  duly
                  authorized  committee  thereof,  of each of the Vendor and the
                  Corporations approving the entering into of this Agreement and
                  the completion of all transactions contemplated hereunder; and
                  (C)  all  other  instruments  evidencing  necessary  corporate
                  action  of each of the  Vendor  and  the  Corporations  and of
                  Authorizations, if any, with respect to such matters;

         (iii)    certificates  of the  Secretary or an  Assistant  Secretary of
                  each of the Vendor and the  Corporations  certifying the names
                  and true  signatures  of its officers  authorized to sign this
                  Agreement and the other instruments to be delivered hereunder;

         (iv)     a  certificate  of status,  compliance,  good standing or like
                  certificate  with  respect  to  each  of the  Vendor  and  the
                  Corporations issued by appropriate government officials of the
                  jurisdiction  of its  incorporation  and,  in the  case of the
                  Corporations,  of  each  jurisdiction  in  which  each  of the
                  Corporations carry on its Business as listed in Schedule 10;




<PAGE>


                                                     - 42 -

         (v)      a favourable  opinion or opinions of counsel to the Vendor and
                  the  Corporations,  and any  other  legal  opinions  as may be
                  required  by or  relied  upon  by  counsel  to the  Vendor  or
                  requested by the Purchaser, or its counsel, acting reasonably,
                  in connection with the operation of the  Corporations  and the
                  Business  including such matters relating to, (A) any licence,
                  association  or joint venture  agreement or arrangement of the
                  Corporations with any Person or Governmental  Entity,  (B) any
                  interest of the  Corporations  in any real property or natural
                  resource  rights in Colombia or Peru, and (C) any other matter
                  in connection  with the Business which is properly the subject
                  matter of a legal opinion;

         (vi)     evidence that all necessary  steps and proceedings as approved
                  by counsel for the  Purchaser  to permit all of the  Purchased
                  Shares to be fully and regularly  transferred to the Purchaser
                  or its nominee(s) have been taken;

         (vii)    duly executed resignation  effective as at the Time of Closing
                  of  each  director  and  officer  of the  Corporations  as the
                  Purchaser may specify;

         (viii)   a release in favour of the  Corporations of each of the Vendor
                  and such  officers and  directors of the  Corporations  as the
                  Purchaser may specify;

         (ix)     all necessary assurances, transfers, assignments and consents,
                  including all necessary Consents and  Authorizations,  and any
                  other   instruments   necessary  or  reasonably   required  to
                  effectively  carry out the  intent of this  Agreement  and any
                  Ancillary  Agreement and to transfer the  Purchased  Shares to
                  the Purchaser,  free and clear of all Encumbrances,  except as
                  may be otherwise provided herein;

         (x)      an opinion from Price Waterhouse,  at the Purchaser's expense,
                  providing  that,  (A)  the  quantum  of any  Tax  Pool  Amount
                  available to the  Colombian  Subsidiary  as of the fiscal year
                  ended December 31, 1996 shall, in any event,  not be less than
                  $20,000,000  in Colombian Peso  equivalent  using the exchange
                  rate for the purchase of U.S. dollars using Colombian Pesos as
                  of the Closing;  and (B) the Tax Pool Amount will be available
                  to the Colombian Subsidiary following the Closing;

         (xi)     a  duly  executed   confidentiality   agreement   between  the
                  Purchaser and the Vendor effective as at the Time of Closing;

         (xii)    a duly executed non-competition  agreement effective as at the
                  Time of  Closing of the Vendor  and  certain  officers  of the
                  Vendor as the Purchaser may specify.

(b)      The  Purchaser  shall  deliver or cause to be  delivered to the Vendor,
         unless  otherwise  waived  by the  Vendor,  and  the  Corporations  the
         following  in form and  substance  satisfactory  to the  Vendor  acting
         reasonably:




<PAGE>


                                                     - 43 -

         (i)      certified  copies of (A) the charter  documents  and  extracts
                  from the by-laws of the Purchaser relating to the execution of
                  documents; (B) all resolutions of the shareholders,  the board
                  of directors or any duly authorized  committee thereof, of the
                  Purchaser  approving the entering  into of this  Agreement and
                  the completion of the transactions contemplated hereunder; and
                  (C)  all  other  instruments  evidencing  necessary  corporate
                  action of the  Purchaser and of  Authorizations,  if any, with
                  respect to such matters;

         (ii)     certificates of the Secretary or an Assistant Secretary of the
                  Purchaser  certifying  the  names and true  signatures  of its
                  officers  authorized  to sign  this  Agreement  and the  other
                  instruments to be delivered hereunder;

         (iii)    a  certificate  of status,  compliance,  good standing or like
                  certificate   with   respect  to  the   Purchaser   issued  by
                  appropriate  government  officials of the  jurisdiction of its
                  incorporation,  together with a certificate that the Purchaser
                  is not on the list of defaulting reporting issuers pursuant to
                  the Securities Act (Ontario);

         (iv)     share  certificates  representing  the MIP  Shares,  with  the
                  legend on each MIP Share  substantially in the form set out in
                  Schedule 23;

         (v)      the Exchange  Rights  Agreement dated as of the date hereof in
                  form agreed to by the Parties duly executed by the Purchaser;

         (vi)     the Continuing  Corporate Guaranty dated as of the date hereof
                  in  form  agreed  to by  the  Parties  duly  executed  by  the
                  Purchaser;

         (vii)    evidence that all necessary steps and proceedings, as approved
                  by counsel for the Vendor,  to permit all of the MIP Shares to
                  be  fully  and  regularly  transferred  to the  Vendor  or its
                  nominee(s) have been taken;

         (viii)   all necessary assurances, transfers, assignments and consents,
                  including all necessary Consents and  Authorizations,  and any
                  other   instruments   necessary  or  reasonably   required  to
                  effectively  carry out the  intent of this  Agreement  and any
                  Ancillary  Agreement  and to transfer the Common Shares to the
                  Vendor,  free and clear of all Encumbrances,  except as may be
                  otherwise provided herein; and

         (ix)     a  favourable  legal  opinion or opinions  from counsel to the
                  Purchaser  as shall be  agreed  to by the  Parties  and  their
                  counsel;




<PAGE>


                                                     - 44 -


                                    ARTICLE 6

                   SURVIVAL OF REPRESENTATIONS AND WARRANTIES;
                             INDEMNITIES AND SET-OFF

6.1      Survival of Representations and Warranties.

(a)      The  representations  and  warranties  of the Vendor  contained in this
         Agreement or any  Ancillary  Agreement  shall  survive the Closing and,
         notwithstanding  such or any investigation  made by or on behalf of the
         Purchaser,  shall  continue in full force and effect for the benefit of
         the  Purchaser  for a period of two (2)  years  from the  Closing  Date
         (except any representation and warranty in connection with the Taxes of
         the Corporations as provided in Subsection 6.2(e) below); and any Claim
         in respect thereof shall be made in writing within such time period.

(b)      The  representations  and warranties of the Purchaser contained in this
         Agreement or in any Ancillary  Agreement shall survive the Closing and,
         notwithstanding  such Closing or any investigation made by or on behalf
         of any of the Vendor,  shall  continue in full force and effect for the
         benefit of the  Vendor  for a period of two (2) years from the  Closing
         Date and any claim in respect  thereof shall be made in writing  within
         such time period.

6.2  Indemnification  in Favour of the  Purchaser.  Subject to Section  6.5, the
Vendor shall  indemnify and save each of the  Purchaser,  and its  shareholders,
directors, officers, employees, agents and representatives,  (in respect of whom
the Purchaser hereby acts as agent and trustee with respect thereto) harmless of
and from any Claim or Loss  suffered by,  imposed  upon or asserted  against the
Purchaser as a result of, in respect of, connected with or arising out of, under
or pursuant to:

(a)      any  failure of the Vendor to  perform  or fulfil any  covenant  of the
         Vendor under this Agreement or any Ancillary Agreement;

(b)      subject  to the  limitation  periods  set  forth  in  Section  6.1  and
         Subsection 6.2(c) below, any breach or inaccuracy of any representation
         or warranty  given by the Vendor  contained in this Agreement or in any
         Ancillary Agreement; and

(c)      for the maximum  allowable time period  prescribed under any applicable
         Law in  which  the  Corporations  may be  audited,  (i) any  breach  or
         inaccuracy  of any  representation  or  warranty  given  by the  Vendor
         contained in this  Agreement or any  Ancillary  Agreement in connection
         with  the  Taxes of the  Corporations;  or (ii)  any  contingent  Taxes
         assessed against the Corporations by any taxing authority in connection
         with any  reassessment of the  Corporations for any period ending on or
         prior to Closing.




<PAGE>


                                                     - 45 -

6.3  Indemnification  in Favour of the  Vendor.  Subject  to  Section  6.4,  the
Purchaser  shall  indemnify  and save each of the Vendor  and its  shareholders,
directors,  officers,  employees, agents and representatives (in respect of whom
the Vendor  hereby acts as agent and trustee with respect  thereto)  harmless of
and from any Claim or Loss  suffered by,  imposed  upon or asserted  against the
Vendor as a result of, in respect of, connected with or arising out of, under or
pursuant to:

(a)      any failure by the  Purchaser to perform and fulfil any covenant of the
         Purchaser under this Agreement or any Ancillary Agreement;

(b)      subject to the limitation  period set forth in Section 6.1 hereof,  any
         breach or inaccuracy  of any  representation  or warranty  given by the
         Purchaser  contained in this Agreement or in any Ancillary Agreement up
         to a maximum sum of $2,000,000; and

(c)      subject to Section 7.11 hereof,  the performance  guarantee provided by
         the Vendor in connection  with the Talara  License  Contract,  provided
         that the Vendor fully and completely  complies with Section 7.11 herein
         at all times  following  Closing.  In the event the Purchaser  sells or
         otherwise  transfers  its  controlling  interest in the Talara  License
         Contract, such guarantee of the Vendor or its successors shall continue
         and the Purchaser and the  Purchaser's  transferee  shall indemnify the
         Vendor and its successors as provided for herein.

6.4      Indemnification Proceedings.

(a)      any Party seeking  indemnification under this Article (the "indemnified
         party")  shall  forthwith  notify  the Party  against  whom a Claim for
         indemnification  is sought  hereunder  (the  "indemnifying  party")  in
         writing,  which notice shall specify,  in reasonable detail, the nature
         and estimated  amount of the Claim. If a Claim by a third party is made
         against an indemnified  party, and if the indemnified  party intends to
         seek indemnity with respect thereto under this Article, the indemnified
         party shall  promptly  (and in any case within thirty (30) days of such
         Claim being made) notify the indemnifying party of such with reasonable
         particulars.  The indemnifying  party shall have thirty (30) days after
         receipt of such  notice to  undertake,  conduct  and  control,  through
         counsel of its own  choosing  and at its  expense,  the  settlement  or
         defence thereof,  and the indemnified  party shall cooperate with it in
         connection  therewith;  except that with respect to settlements entered
         into by the indemnifying party (i) the consent of the indemnified party
         shall be required  if the  settlement  provides  for  equitable  relief
         against the indemnified  party, which consent shall not be unreasonably
         withheld or delayed;  and (ii) the indemnifying  party shall obtain the
         release of the indemnified party. If the indemnifying party undertakes,
         conducts and controls the  settlement  or defence of such Claim (i) the
         indemnifying party shall permit the indemnified party to participate in
         (but  not  to  dictate  the  terms  of  or  veto,   provided  that  the
         indemnifying  party has sufficient  funds to indemnify the  indemnified
         party)  such  settlement  or  defence  through  counsel  chosen  by the
         indemnified  party,  provided that the reasonable  fees and expenses of
         such  counsel  shall be borne by the  indemnified  party;  and (ii) the
         indemnifying  party shall promptly  reimburse the indemnified party for
         the full  amount of any loss  resulting  from any Claim and all related
         expenses  (other than the  reasonable  fees and  expenses of counsel as
         aforesaid)  incurred by the indemnified  party.  The indemnified  party
         shall not pay or settle any Claim so long as the indemnifying party



<PAGE>


                                                     - 46 -

         is  reasonably  contesting  any such  claim  in good  faith on a timely
         basis.  Notwithstanding the two immediately  preceding  sentences,  the
         indemnified party shall have the right to pay or settle any such claim,
         provided  that in such  event it shall  waive  any  right to  indemnity
         therefor by the indemnifying party.

(b)      with respect to third party Claims, if the indemnifying  party does not
         notify the indemnified  party within thirty (30) days after the receipt
         of the  indemnified  party's  notice of a claim of indemnity  hereunder
         that it elects to undertake the defence thereof,  the indemnified party
         shall have the right,  but not the  obligation,  to contest,  settle or
         compromise the Claim in the exercise of its reasonable  judgment at the
         expense of the indemnifying party.

(c)      In the  event of any  Claim by a third  party  against  an  indemnified
         party,  the defence of which is being  undertaken and controlled by the
         indemnifying  party,  the  indemnified  party  will use all  reasonable
         efforts to make  available to the  indemnifying  party those  employees
         whose  assistance,  testimony  or presence is  necessary  to assist the
         indemnifying  party in  evaluating  and in  defending  any such claims;
         provided  that the  indemnifying  party  shall be  responsible  for the
         expense associated with any employees made available by the indemnified
         party to the indemnifying party hereunder, which expense shall be equal
         to the amount of reasonable  out of pocket  expenses for such employees
         assisting the  indemnifying  party and which  expenses shall not exceed
         the  actual  cost  to  the  indemnified   party  associated  with  such
         employees.

(d)      With respect to third party Claims,  the  indemnified  party shall make
         available to the indemnifying party or its  representatives on a timely
         basis all documents,  records and other  materials in the possession of
         the  indemnified  party,  at the  expense  of the  indemnifying  party,
         reasonably  required by the indemnifying party for its use in defending
         any claim and shall  otherwise  cooperate  on a timely  basis  with the
         indemnifying party in the defence of such Claim.

(e)      With respect to any re-assessment for income, corporate, sales, excise,
         or other tax or other liability  enforceable by Encumbrance against the
         property of the indemnified party, the indemnifying party's right to so
         contest  shall only apply after such payment of such  re-assessment  or
         the provision of such security as is necessary to avoid an  Encumbrance
         being placed on the property of the indemnified party.

6.5 Limitation.  The obligation of indemnification  set out in Section 6.2 shall
be  applicable  only to the  extent  that  any  Claims  made  under  it,  in the
aggregate,  exceed  $50,000,  in which  event  the  aggregate  liability  of the
indemnifying parties shall be for the amount in excess of the $50,000,  with the
maximum  liability for  indemnification  thereunder being an amount equal to the
aggregate  of the  Performance  Earn-Out,  the Maximum Tax Pool  Payment and the
principal amount of the Colombian Debenture, which amount will be paid or deemed
paid as prescribed in Section 6.7.


6.6  Exclusion  of Other  Remedies.  No Party  shall have the right to bring any
proceeding against any other Party for a breach of any representation, warranty,
covenant or agreement



<PAGE>


                                                     - 47 -

contained in this Agreement,  except for a proceeding brought in accordance with
the  provisions of this  Agreement.  This  provision is intended to preclude any
proceeding  by any Party  against  any other Party based on a cause of action or
right,  including  any  statutory  right or other  remedy  whereof  at law or in
equity,  other  than a cause of  action  in  contract  or tort for  breach  of a
representation, warranty, covenant or agreement contained in this Agreement.

6.7 Right of Set-Off.  At anytime subsequent to the Closing,  upon notice to the
Vendor specifying in reasonable detail the basis for such set-off, the Purchaser
will  set-off any amount to which it may be entitled  to  indemnification  under
this Agreement or any Ancillary Agreement, in the following order and priority:

(a)      the Performance Earn-Out;

(b)      the Tax Pool Amount; and

(c)      the Colombian Debenture, as limited below; and

Any amount of  set-off  shall,  upon such  notice  being  given to the Vendor in
accordance with Section 9.1, be immediately and forthwith allocated, in the case
of a set-off  against the Performance  Earn-Out,  a reduction in the Performance
Earn-Out Balance until it is zero, in the case of a set-off against the Tax Pool
Amount,  a deemed Tax Pool Payment  until the aggregate of all Tax Pool Payments
and deemed Tax Pool Payments equal the Maximum Tax Pool Payment and, in the case
of a set-off against the Colombian  Debenture,  a deemed redemption of a portion
of the Colombian  Debenture  having a principal amount equal to the amount to be
set-off  until  all of  the  principal  amount  of the  Colombian  Debenture  is
redeemed. Notwithstanding the foregoing, in the event the Colombian Debenture is
pledged,  sold or  otherwise  disposed of to a Person who is not an Affiliate of
the Vendor,  no amount of the  Colombian  Debenture  shall be subject to set-off
hereunder.  Subject to Section  6.5, to the extent the  Purchaser is entitled to
indemnification  under this  Agreement  and the  amount of such  indemnification
exceeds the amount  available  for set-off  above,  the  Purchaser may seek cash
indemnification  from the Vendor for the amount of such  excess on an  unsecured
basis pursuant to Article 8 herein.  Nothing  contained herein shall restrict or
otherwise  impair the  Purchaser's  right to specific  performance and any other
equitable remedy available to it at law or in equity.

6.8 Tax Audit.  The Vendor  shall be entitled to direct and control any audit of
the  Corporations  by the Internal  Revenue  Service for any period ending on or
prior to Closing.

6.9 Compliance with  Environmental Law.  Notwithstanding  Section 6.5 hereof and
the limitations contained therein, if in the aggregate, the payments incurred by
the  Colombian  Subsidiary  after  the  date  hereof  and  prior  to the  second
anniversary  date hereof in respect of any work required to be done as set forth
in  paragraph  2 of  Schedule  12 hereof to bring  the  Assets of the  Colombian
Subsidiary into compliance with any  Environmental  Law exceeds $69,000,  50% of
the amount of such excess shall be set-off against the Performance  Earn-Out and
the  Performance  Earn-Out  Balance  shall  be  decreased  accordingly  and  the
Purchaser shall bear the cost of the balance. Any amounts so awarded on or after
the second  anniversary  date hereof shall be totally borne by Purchaser and the
Corporations  and not reimbursed by or set-off  against  amounts due the Vendor.
Furthermore, with respect to the Talara License Contract, Schedule



<PAGE>


                                                     - 48 -

12 includes a list of items required to make the property referred in the Talara
License  Contract in compliance with Peruvian  Environmental  Law. To the extent
the amount required to be expended and borne by the Peruvian  Subsidiary exceeds
$212,000, 50% of the amount of such excess, up to a maximum of $325,000 shall be
paid by the  Vendor to the  Peruvian  Subsidiary  within 30 days of  receipt  of
evidence of such payment.  Notwithstanding the above, in the event the aggregate
net revenue  interest of the Peruvian  Subsidiary,  an Affiliate  and any person
acquiring such an interest from the Peruvian Subsidiary or its Affiliate (to the
extent of the interest transferred,  referred herein as "Transferees") increases
over the percentage  owned at Closing,  the  percentage of the remaining  excess
which Vendor shall bear shall be  recomputed  and equal the  percentage  of such
excess to be borne by Vendor immediately prior to such recomputation  multiplied
by a  fraction,  the  numerator  of which  shall be the  aggregate  net  revenue
interest owned immediately prior to such computation by the Peruvian Subsidiary,
its Affiliates and Transferees thereof and the denominator of which shall be the
net revenue  interest owned  immediately  thereafter by such Persons,  but in no
event shall the Vendor  bear more than 50% of such  excess.  In all events,  the
Peruvian Subsidiary shall bear the first $232,000 of the amount required to make
the Talara License Contract in compliance with Peruvian Environmental Law.

                                    ARTICLE 7

                             POST-CLOSING COVENANTS

7.1 Access to Books and Records.  For a period of six (6) years from the Closing
Date or for such  longer  period  as may be  required  by  applicable  Law,  the
Purchaser  covenants  and agrees to retain  all  original  accounting  Books and
Records relating to, or for the period as set forth in Article 8 for the periods
specifically  set out therein,  as the case may be, to the  Corporations for the
period  prior to the  Closing  Date.  So long as any such books and  records are
retained by the Purchaser pursuant to this Agreement,  the Vendor shall have the
reasonable  right to inspect and to make copies (at its own expense) of the same
at any time  upon  reasonable  request  during  normal  business  hours and upon
reasonable  notice for any proper purpose and without undue  interference to the
business operations of the Purchaser. The Purchaser shall have the right to have
its representatives present during any such investigations.

7.2 Further  Assurances.  From time to time subsequent to the Closing Date, each
Party  shall  at the  request  of any  other  Party  execute  and  deliver  such
additional  conveyances,  transfers  and other  assurances  as may be reasonably
required to effectively carry out the intent of this Agreement and any Ancillary
Agreement and to transfer the Purchased Shares to the Purchaser.

7.3 Cooperation of the Vendor. From time to time subsequent to the Closing Date,
the Vendor shall,  at the request and expense of the  Purchaser,  cooperate with
the Purchaser,  (a) in any and all proceedings or applications  for Consents and
Authorizations from any Governmental  Entity, and in particular any Colombian or
any  Peruvian  Government  Entity,  including  the  execution or delivery of any
documents  or the  provision  of any  assistance  necessary  to ensure  that the
Purchaser,  or a  designee  of the  Purchaser,  becomes  the legal  operator  of
Peruvian  Property  and becomes the  authorized  named party on the  appropriate
licence agreement in connection therewith, as applicable; (b) in connection with
any legal  proceeding or dispute with Rio Bravo;  and (c) in connection with the
revocation of the letter of credit and the release of the restricted  cash funds
in the form of a certificate of deposit to the Purchaser held by Banco De



<PAGE>


                                                     - 49 -

Occidente Panama and Banco De Occidente Colombia respectively. The Purchaser and
Vendor agree to furnish or caused to be furnished to each other,  upon  request,
as promptly as  practicable,  such  information  and assistance  relating to the
Corporations  and filing of Tax Returns,  the making of any election  related to
Taxes, the preparation for any audit by a taxing authority,  and the prosecution
or defense of any claim,  suit or  proceeding  relating to any Tax  Return.  The
Corporations,  the Vendor and the Purchaser  shall  cooperate with each other in
the  conduct of any audit or other  proceeding  related to Taxes  involving  the
Corporations  and each shall  execute  and deliver  such powers of attorney  and
other documents as are necessary to carry out the intent of this Section 7.3.

7.4 Common  Shares.  The Vendor and its Affiliates  shall not sell,  transfer or
otherwise dispose of any Common Shares, except in compliance with the following:

(a)      No Common  Shares  shall be sold to any "U.S.  Person" (as such term is
         defined in Regulation S promulgated  under the U.S.  Securities  Act of
         1933, as amended),  except in compliance with  applicable U.S.  federal
         and state securities law. Subject to Subsections 7.4(b) to (f) below, a
         sale of Common  Shares on The  Toronto  Stock  Exchange  shall not be a
         violation of this Subsection 7.4(a) ;

(b)      No Common  Shares  shall be sold in Canada,  including  on The  Toronto
         Stock  Exchange,  or to any  resident of Canada,  until forty (40) days
         after the Closing Date;

(c)      The Vendor and its  Affiliates  shall not sell  Common  Shares into the
         market on any trading  day more than 10% of the total  number of shares
         of the Purchaser  traded on The Toronto Stock Exchange on the preceding
         twenty (20) trading days prior to such sale;

(d)      Notwithstanding  Subsection  7.4(c) above,  the maximum total number of
         Common  Shares  that  may be sold  into  the  market  over any five (5)
         consecutive trading days shall be 250,000 Common Shares;

(e)      The Vendor and its  Affiliates  shall not sell,  transfer or  otherwise
         dispose of Common Shares representing 5% of the then outstanding shares
         of the Purchaser to any party or group of related  parties  without the
         prior written consent of the Purchaser; and

(f)      The Vendor and its Affiliates shall not sell the Common Shares short at
         any time.

7.5 NASDAQ.  For so long as the Vendor holds any Common  Shares,  the  Purchaser
agrees that if it applies to NASDAQ to have its common  shares  quoted  thereon,
the Purchaser  shall register all the Common Shares if a registration  statement
is required to be filed by applicable Law or by NASDAQ.

7.6  Employment.  The Purchaser  shall offer to employ Enrique Davila and Carlos
Carrion and provide all other employees of the Colombian Subsidiary at least six
(6) months of continued employment from the Closing Date.

7.7      Rio Bravo. Subsequent to the Time of Closing, regardless of whether Rio
         Bravo is successful in its Claim against the Peruvian  Subsidiary,  the
         Vendor shall assist the Purchaser in



<PAGE>


                                                     - 50 -

ensuring  that the interest of the Peruvian  Subsidiary  in the existing  Talara
License  Contract,  the Talara  Operating  Agreement or any new joint venture or
operating agreement with Rio Bravo is maintained in connection with the Peruvian
Property and that any assignment or  reassignment of rights of the Vendor to the
Peruvian  Subsidiary  is made by the  Vendor to ensure  freedom of access to the
Peruvian Property by the Peruvian Subsidiary to give effect to such agreement or
agreements  and that the Vendor will  assist in seeking  any legal or  equitable
remedies  (including an  application  for an injunction)  available  against Rio
Bravo or any other Person or Governmental Entity in connection therewith to give
effect to this  Agreement,  the Talara License  Contract,  the Talara  Operating
Agreement and transactions contemplated hereunder or thereunder.

7.8 Tax Election.  The Vendor and the Purchaser  agree to make an election under
Section 338(h)(10) of the Internal Revenue Code (and any corresponding elections
under state,  local, or foreign tax law)  (collectively,  a "Section  338(h)(10)
Election")  with  respect  to  the  purchase  and  sale  of  the  stock  of  the
Corporations  hereunder.  The Vendor will pay any Taxes, including any liability
of the  Corporations  for Taxes resulting from the application to it of Treasury
Regulation ss.1.338(h)(10) - 1(f)(5),  attributable to the making of the Section
338(h)(10)  Election and will indemnify the Purchaser and  Subsidiaries  against
any adverse  consequences  arising  out of any  failure to pay such  Taxes.  The
Parties shall  execute,  and if required  file,  IRS Form 8023-8 and comply with
treasury  regulation  section  1.338(4).  The  Purchaser  will  agree  with  the
allocation made among the Assets of the Colombian  Subsidiary for federal income
tax purposes.  Notwithstanding  the above,  the Purchaser will pay to the Vendor
the lesser of $40,000 or the amount of the Alternative  Minimum Tax attributable
solely  to the  election  referred  to  above  10 days  prior  to the  date  the
Alternative  Minimum Tax is  required to be paid,  provided  the  Purchaser  has
received  notice from the Vendor of the amount so payable at least 20 days prior
to the date such amount is  required to be paid and the Vendor can  substantiate
such amount to the reasonable satisfaction of the Purchaser.

7.9 Continued Cooperation. From time to time subsequent to the Closing Date, the
Purchaser and the Corporations  shall, at the request and expense of the Vendor,
cooperate with the Vendor and its auditors in preparing all necessary  financial
statements required to be completed by the Vendor.

7.10 Continued  Listing.  The Purchaser shall use its reasonable best efforts to
maintain  the  listing of its Common  Shares for  trading on The  Toronto  Stock
Exchange or other recognized stock exchange. The Purchaser shall further use its
best efforts to maintain  its status as a  "reporting  issuer" and not be on the
list of defaulting reporting issuers pursuant to the Securities Act (Ontario).

7.11 Guarantee.  Subsequent to the Closing,  the Vendor shall not amend, modify,
revoke, terminate, cancel, withdraw or otherwise take any action whatsoever that
would or may, directly or indirectly, affect in any manner any term or condition
or the  validity of its  performance  guarantee of the Talara  License  Contract
provided  in  the  favour  of  Perupetro  or  which  would  affect  the  rights,
obligations, guarantees, commitments or privileges of the entities participating
thereof, without the prior written consent of the Purchaser. The Purchaser will,
as soon as reasonably  practicable  following Closing, use reasonable efforts to
remove the Vendor from such guarantee,  provided however,  in no event shall the
Purchaser be required to undertake or cause



<PAGE>


                                                     - 51 -

to undertake any action which may  jeopardize  its rights and benefits under the
Talara License Contract.

7.12 Opinion for Transfer  Agent.  In the event that the  registrar and transfer
agent of the  Purchaser  requires  an opinion of  counsel  to the  Purchaser  in
connection  with the issue of any Common  Shares to the  Vendor,  the  Purchaser
covenants and agrees to use its best efforts to cause its counsel to prepare and
deliver  such  opinion  to its  registrar  and  transfer  agent,  as  soon as is
reasonably practicable after such request is received.

7.13 No Contrary  Instructions.  The Purchaser shall not provide, or cause to be
provided,  at any time  following  Closing,  any  contrary  instructions  to the
Purchaser's  registrar  and transfer  agent which will in any manner  whatsoever
affect the transferability of the MIP Shares delivered,  or to be delivered,  to
the Vendor pursuant to this Agreement.

7.14 Legend. The Purchaser shall not,  following Closing,  require that a legend
be placed on any  certificate(s)  in respect of any  Common  Shares  that may be
issued  to the  Vendor  upon  the  exercise  of its  exchange  right  under  the
provisions of the Colombian Debenture and the Exchange Rights Agreement,  unless
required by applicable Law.

7.15 Toronto Stock Exchange.  The Purchaser shall satisfy all conditions imposed
by The  Toronto  Stock  Exchange  in  connection  with the listing of the Common
Shares as soon as reasonably  practicable after Closing in order to obtain final
approval of the listing of the MIP Common Shares,

7.16  Name  Change.  The  Purchaser  agrees  to  change  the  name  of  American
International   Petroleum   Corporation   of  Colombia  as  soon  as  reasonably
practicable  after the date  hereof,  unless such name  change  would in any way
affect the ability of the Colombia Subsidiary to carry on its Business.

7.17  Accounting.  Subsequent  to  Closing  and until  December  31,  1997,  the
Purchaser will maintain in all material  respects the  accounting  system of the
Corporations.

7.18 Transfer of Colombian  Debentures.  The Vendor  agrees not to,  directly or
indirectly,  transfer,  assign,  pledge or otherwise  dispose of or encumber the
portion of the Colombian  Debenture  held by it to a third party  (including its
Affiliate)  at such  time,  if ever,  as the  amount of any  Claims to which the
Purchaser may be entitled to indemnification hereunder exceeds the excess of the
Performance  Earn-Out  Balance  and the unpaid  amount of the  Maximum  Tax Pool
Payment.

7.19 Report.  Subsequent  to Closing,  the Vendor shall deliver to the Purchaser
forthwith  upon  receipt  a  copy  of the  actuarial  report  on the  contingent
liability of the Pension Plan as disclosed in Schedule 17.

7.20 Right of First  Refusal.  Should  Petroleros  Del Norte or any other Person
exercise any right of first refusal or other  preferential right under the Joint
Operating  Agreement  or any other  Lease,  such that such Person shall upon the
payment of any  consideration be entitled to acquire the interest in such Lease,
the Vendor hereby grants to the Purchaser the right to act as its agent in



<PAGE>


                                                     - 52 -

all matters  relating  thereto and agrees to fully cooperate with the Purchaser,
and shall pay to the  Purchaser all amounts or other  consideration  received by
the Vendor in connection therewith and, in furtherance  thereof,  assigns to the
Purchaser  the right to receive,  and agrees at the request of the  Purchaser to
direct any such Person to pay  directly to the  Purchaser,  such  consideration.
Should any such right be  exercised  by any Person,  the Parties  agree that the
Purchaser  shall be entitled (in its sole  discretion)  to allocate the Purchase
Price among the  Purchased  Shares,  solely for the purpose of  determining  the
price to be paid by such Person in exercising any such right.


                                    ARTICLE 8

                                   ARBITRATION

8.1 Best  Endeavours  to Settle  Disputes.  In the event of any dispute,  claim,
question or  difference  arising out of or  relating  to this  Agreement  or any
breach hereof, the parties hereto shall use their best endeavours to settle such
dispute,  claim, question or difference.  To this effect, they shall consult and
negotiate  with each  other,  in good faith and  understanding  of their  mutual
interests, to reach a just and equitable solution satisfactory to all parties.

8.2  Arbitration.  Except as is  expressly  provided in this  Agreement,  if the
Parties  do not reach a  solution  pursuant  to  Section  8.1 within a period of
fifteen (15) Business Days, then upon written notice by any party to the others,
the  dispute,  claim,  question  or  difference  shall  be  finally  settled  by
arbitration in accordance  with the provisions of the  International  Commercial
Arbitration Act (Ontario) and any amendments thereto, based upon the following:

(a)      the arbitration  tribunal shall consist of one arbitrator  appointed by
         mutual  agreement of the  Parties,  or in the event of failure to agree
         within ten (10)  Business  Days,  any party may apply to a judge of the
         Ontario  Court  (General   Division),   or  other  court  of  competent
         jurisdiction,  to  appoint  an  arbitrator.  The  arbitrator  shall  be
         qualified by education and training to pass upon the particular  matter
         to be decided;

(b)      the  arbitrator  shall be  instructed  that time is of the  essence  in
         proceeding with his  determination of any dispute,  claim,  question or
         difference and, in any event,  the  arbitration  award must be rendered
         within  thirty  (30)  days  of  the   submission  of  such  dispute  to
         arbitration;

(c)      the arbitration shall take place in Toronto,  Ontario, unless otherwise
         agreed to by the Parties hereto;

(d)      the arbitration  award shall be given in writing and shall be final and
         binding on the Parties,  not subject to any appeal, and shall deal with
         the question of costs of arbitration and all matters  related  thereto;
         and

(e)      judgment  upon the award  rendered  may be entered in any Court  having
         jurisdiction,  or, application may be made to such Court for a judicial
         recognition  of the award or an order of  enforcement  thereof,  as the
         case may be.




<PAGE>


                                                     - 53 -


                                    ARTICLE 9

                                  MISCELLANEOUS

9.1 Notices. Any notice,  direction or other instrument required or permitted to
be given  hereunder shall be in writing and given by delivering or sending it by
telecopy or other similar form of communication addressed:

(a)      to the Purchaser at:

         Mountbatten House
         9 Westhill Street
         P.O. Box N-968
         Nassau, Bahamas

         Attention:        Mr. Luis V. Bacigalupo/Mr. Jeffrey M. Waterous
         Telecopier:       (242) 356-0201 / (242) 356-0507




<PAGE>


                                                     - 54 -

         together with a copy to:

         Stikeman, Elliott
         Suite 5300
         Commerce Court West
         Toronto, Ontario
         M5L 1B9

         Attention:        Mr. Derek Linfield
         Telecopier:       (416) 947-0866

(b)      to the Vendor or to each of the Corporations at:

         444 Madison Avenue, 32nd Floor
         New York, New York
         10022

         Attention:        Dr. George N. Faris
         Telecopier:       (212) 688-6657

         together with a copy to:

         Snow Becker Krauss P.C.
         605 3rd Avenue, 25th Floor
         New York, New York
         10158-0125

         Attention:        David Berkowitz, Esq.
         Telecopier:       (212) 949-7052

Any such notice,  direction  or other  instrument  given as  aforesaid  shall be
deemed to have been  effectively  given,  if sent by telecopier or other similar
form of  telecommunications on the next Business Day following such transmission
or, if delivered,  to have been received on the date of such delivery. Any Party
may  change  its  address  for  service  from  time to time by  notice  given in
accordance  with the  foregoing and any  subsequent  notice shall be sent to the
Party at its changed address.

9.2  Publicity.  Save as required by Law or by any stock  exchange,  none of the
Parties  shall issue any press  release or make any other  public  statement  or
announcement  relating to or connected  with or arising out of this Agreement or
the matters  contained  herein,  without obtaining the prior written approval of
the other Parties to the contents and the manner of presentation and publication
thereof.  If  disclosure  is  required  by  Law or by any  stock  exchange,  the
disclosing  Party shall consult in advance with the other Parties and attempt in
good faith to reflect such other Parties' concerns in the required disclosure.

9.3      Time of the Essence.  Time shall be of the essence of this Agreement.




<PAGE>


                                                     - 55 -

9.4 Brokers. It is understood and agreed that no broker,  agent, finder or other
intermediary  acted for either the Vendor or the Corporations in connection with
the sale of the  Purchased  Shares  and the Vendor  and the  Corporations  shall
indemnify and save harmless the Purchaser from and against any Claims whatsoever
for any commission or other remuneration payable or alleged to be payable to any
broker,  agent or other  intermediary  who purports to act or have acted for the
Vendor or the Corporations.

9.5 Third Party  Beneficiaries.  Except as set forth in the bracketed wording at
the  commencement  of Sections 6.2 and 6.3, each Party hereto  intends that this
Agreement  shall not  benefit  or  create  any right or cause of action in or on
behalf of any Person,  other than the Parties hereto, and no Person,  other than
the Parties  hereto,  shall be entitled to rely on the provisions  hereof in any
action, suit, proceeding, hearing or other forum.

9.6  Expenses.  Except as otherwise  expressly  provided  herein,  all costs and
expenses  (including the fees and  disbursements  of legal  counsel,  investment
advisers,  auditors  and  other  advisors)  incurred  in  connection  with  this
Agreement and the  transactions  contemplated  hereby shall be paid by the Party
incurring such expenses.

9.7 Enurement.  This Agreement shall enure to the benefit of and be binding upon
the Parties, their successors and any permitted assigns.

9.8  Counterparts.  This Agreement may be executed in one or more  counterparts,
each of which  shall be deemed an  original  and all of which,  taken  together,
shall constitute one and the same instrument.

9.9 Joint and Several Liability.  In the event that there is no Closing, for any
reason  whatsoever,   and   notwithstanding  any  other  provision  hereof,  the
Corporations  shall be  jointly  and  severally  liable  with the  Vendor,  as a
principal  and not as a  surety,  with  respect  to all of the  representations,
warranties, covenants, indemnities and agreements of the Vendor.

9.10 Assignment.  Except as provided in this Section 9.10, none of the rights or
obligations  hereunder  shall be assignable or transferable by any Party without
the prior written consent of the other Parties. The Purchaser shall be entitled,
upon giving notice to the Vendor at any time on or prior to the Closing Date, to
assign the benefits of this Agreement to any Affiliate of the Purchaser  subject
to the following two conditions:

(a)      the Purchaser's assignee shall become jointly and severally liable with
         the Purchaser,  as a principal and not as a surety, with respect to all
         of  the  representations,   warranties,   covenants,   indemnities  and
         agreements of the Purchaser; and

(b)      such assignee shall execute an agreement confirming such assignment and
         the  assumption  by the assignee of all  obligations  of the  Purchaser
         under this Agreement.

9.11 Non-Merger.  Except as otherwise expressly provided in this Agreement,  the
covenants,  representations  and  warranties  of the Parties  contained  in this
Agreement and the Ancillary  Agreements shall not merge on and shall survive the
Closing and,  notwithstanding  such Closing,  or any investigation made by or on
behalf of any Party, shall continue in full force and effect.



<PAGE>


                                                     - 56 -
Closing  shall not  prejudice  any right of one Party against any other Party in
respect of  anything  done or omitted  hereunder  or under any of the  Ancillary
Agreements or in respect of any right to damages or other remedies.

         IN WITNESS  WHEREOF  this  Agreement  has been  executed by each of the
Parties as of the date first above written.

                        AMERICAN INTERNATIONAL PETROLEUM
                        CORPORATION


                        Per:________________________________________________c/s
                               Dr. George N. Faris
                               Chief Executive Officer and President


                        AMERICAN INTERNATIONAL PETROLEUM
                        CORPORATION OF COLOMBIA


                        Per:________________________________________________c/s
                               Dr. George N. Faris
                               Chief Executive Officer


                         PAN AMERICAN INTERNATIONAL PETROLEUM
                         CORPORATION


                        Per:________________________________________________c/s
                               Dr. George N. Faris
                               Chief Executive Officer


                         MERCANTILE INTERNATIONAL PETROLEUM INC.


                        Per:________________________________________________c/s
                               Jeffrey M. Waterous
                               Executive Chairman



                        Per:________________________________________________c/s
                               Luis V. Bacigalupo
                               Chief Executive Officer and President







                                                                    EXHIBIT 99.2

           THIS DEBENTURE HAS NOT BEEN REGISTERED UNDER THE SECURITIES
             ACT OF 1933, AS AMENDED, AND MUST BE HELD INDEFINITELY
              UNLESS SO REGISTERED OR TRANSFERRED IN A TRANSACTION
                            EXEMPT FROM REGISTRATION.


                       EXCHANGEABLE SUBORDINATED DEBENTURE

$3,000,000                                                    New York, New York
                                                              February 25 , 1997

         FOR VALUE RECEIVED, the undersigned,  AMERICAN INTERNATIONAL  PETROLEUM
CORPORATION  OF COLOMBIA , an Oklahoma  Corporation  (the "Company" or "Maker"),
promises to pay to the order of American International Petroleum Corporation,  a
Nevada Corporation  ("Payee"),  its successors and assigns, at Payee's office at
444 Madison Avenue,  New York, New York 10022, or such other place as the holder
may  designate in writing from time to time,  the principal sum of Three Million
and 00/xx Dollars ($3,000,000),  in lawful money of the United States,  together
with  simple  interest  in the  amount  of 5% per annum of such  principal  sum.
Interest  shall be payable in cash,  quarterly  in arrears  beginning  March 31,
1997.  All  outstanding  principal  and  accrued  and  unpaid  interest  on this
Debenture shall be due and payable on February 25, 1999; provided, however, that
(i) the  Payee may  demand a  partial  payment  in the  principal  amount of One
Million Five Hundred  Thousand and 00/xx  Dollars  ($1,500,000),  together  with
interest  accrued  thereon on February  25, 1998 by giving at least  thirty (30)
days notice prior thereto and the Company shall make such partial  prepayment in
cash on February 25, 1998,  or (ii) the  Debenture  may be exchanged  for common
shares of Mercantile International Petroleum Inc. ("MIP Shares") at such earlier
date as provided herein.

         Payee shall have the right to exchange all or portion of the  Debenture
from time to time into MIP Shares at anytime  commencing  February  25,  1998 by
delivering  the Debenture to Equity  Transfer  Services  Inc., the registrar and
transfer agent of Mercantile International Petroleum Inc. ("Mercantile") (or any
successor transfer agent of Mercantile (the "Transfer Agent")) who shall deliver
to the  holder  of the  Debenture  (i) the  number  of MIP  Shares  equal to the
principal amount of Debenture being converted  divided by $3.00, as adjusted for
any  dilutive  effect  referred to in Paragraph 4 of Exchange  Rights  Agreement
dated  February 25, 1997 between  Mercantile  and Mthe unpaint of the  Debenture
being  redeemed  through  the date of payment and (ii) a new  Debenture,  having
identical terms hereof,  for the portion of the Debenture  tendered which is not
converted as provided hereunder.

         Mercantile  shall have the right to cause an automatic  exchange of all
or part of the  Debenture  at such time as the  closing  price of the MIP Shares
traded on The  Toronto  Stock  Exchange  (or such other  Exchange  which the MIP
Shares may be traded if not traded on The Toronto  Stock  Exchange)  for each of
the  twenty  (20)  trading  days  ending on the  sending  of the  notice of such
conversion  is equal to or above $3.50 per share and the average  daily  trading
volume for such period  exceeded  50,000 Common Shares.  Mercantile may exercise
such option by sending  notice in writing to the holder of the  Debenture.  Such
holder will deliver to the Transfer  Agent the Debenture and the Transfer  Agent
shall deliver to the holder of the Debenture,  the items referred to in (i) (ii)
and above (iii) above,  as if Payee had  exchanged  the portion of the Debenture
being automatically converted pursuant to this paragraph.

         This  Debenture  may not be prepaid,  except as  specifically  provided
above, in whole or in part at any time.

         This Debenture may be sold, pledged,  assigned or otherwise disposed of
(whether  voluntarily  or  involuntary),  provided  such disposal is exempt from
registration  under United States  federal and any applicable  state  securities
laws. The Company shall, without charge,  execute and deliver a new Debenture in
the name of the assignee named in such instrument of assignment and this


<PAGE>



Debenture shall be promptly  cancelled.  Any Debentures issued upon the transfer
or exercise in part of this Debenture  shall be numbered and shall be registered
in a Debenture  Register of the Company as they are issued. The Company shall be
entitled  to treat the  registered  holder  of any  Debenture  on the  Debenture
Register as the owner in fact thereof for all purposes and shall not be bound to
recognize any  equitable or other claim to or interest in such  Debenture on the
part of any other person.  A holder of a Debenture may also have this  Debenture
reissued in denominations of not less than $100,000.

         The  Maker  hereby  agrees,  and the  holder of this  Debenture  by the
holder's  acceptance  hereof  agrees,  that the payment of the  principal of and
interest on this Debenture is hereby  expressly made  subordinate  and junior in
right of payment to the prior  payment in full of all Senior  Debt,  Capitalized
Leases or  Permitted  Liens,  (each as  hereinafter  defined) of the Maker.  The
holder of this Debenture agrees, as part of such subordination, as follows:

                  (a) In the event of insolvency or bankruptcy  proceedings,  or
any receivership,  liquidation,  reorganization or other similar  proceedings in
connection  therewith,  relative  to the Maker or to any of the  property of the
Maker, or in the event of any proceedings for voluntary liquidation, dissolution
or other  winding-up  of the  Maker,  whether  or not  involving  insolvency  or
bankruptcy,  then the holders of Senior Debt,  Capitalized  Leases and Permitted
Liens  shall be  entitled  to receive  payment in full of all  principal  of and
premium,  if any,  and  interest  on all  Senior  Debt,  Capitalized  Leases and
Permitted Liens before the holder of this Debenture shall be entitled to receive
any payment on account of principal or interest on this  Debenture,  and to that
end the holders of Senior Debt shall be entitled to receive for  application  in
payment thereof any payment or distribution of any kind or character, whether in
cash or property or securities,  which may be payable or deliverable in any such
proceedings in respect of this Debenture.

                  (b) In the event that the holder of this Debenture  shall have
received  written  notice to the  effect  that an event of  default  shall  have
occurred  on any  Senior  Debt,  Capitalized  Leases or  Permitted  Liens and be
continuing  (under  circumstances  in  which  the  provisions  of the  foregoing
paragraph (a) are not  applicable),  then,  during the  continuance  of any such
event of default,  all  principal  of and  premium,  if any, and interest on all
Senior Debt,  Capitalized  Leases or Permitted Liens  outstanding at the time of
such  notice  shall  first be paid in full,  before  any  payment  on account of
principal or interest is made upon this Debenture.

         The  provisions  of this  paragraph are for the purpose of defining the
relative rights of the holders of Senior Debt,  Capitalized  Leases or Permitted
Liens on the one hand,  and the  holder  of this  Debenture  on the other  hand,
against the Maker and its property;  and nothing herein shall impair, as between
the Maker and the holder of this Debenture,  the obligation of the Maker,  which
is unconditional and absolute,  to pay to the holder hereof the principal hereof
and the interest hereon in accordance with the terms and provisions  hereof; nor
shall anything  herein prevent the holder of this Debenture from  exercising all
remedies  othany,  under this  paragraph of holders of Senior Debt,  Capitalized
Leases or  Permitted  Liens to  receive  cash,  property,  stock or  obligations
otherwise payable or deliverable to the holder of this Debenture.

         For the purpose of this Debenture:

                  (a) "Debt" of any  corporation  shall mean,  at any date,  all
indebtedness  of such  corporation  which would,  in accordance  with  generally
accepted accounting principles, be classified as indebtedness, whether funded or
current, but in any event including:

                           (i)  all   indebtedness   guaranteed,   directly   or
indirectly,  in any manner by such corporation or in effect guaranteed  directly
or indirectly by such corporation through an agreement, contingent or otherwise,
to supply funds

                                       -2-

<PAGE>



to or in any other manner invest in the debtor,  to purchase  indebtedness or to
purchase  goods,  supplies or services for the purpose of enabling the debtor to
make  payment of the  indebtedness  or to assure  the owner of the  indebtedness
against loss, or otherwise;

                           (ii) all  indebtedness for the payment of purchase of
which such  corporation  has agreed,  contingently  or otherwise,  to advance or
supply funds;

                           (ii) all indebtedness secured by any mortgage,  lien,
pledge,  charge  or  encumbrance  of  any  kind  upon  property  owned  by  such
corporation,  even though such  corporation has not assumed or become liable for
the payment of such indebtedness; and

                           (iv) all indebtedness of such corporation  created or
arising  under any  conditional  sale or other title  retention  agreement  with
respect to  property  acquired by such  corporation,  even though the rights and
remedies of the seller or lender  under such  agreement  in the event of default
are limited to repossession of such property; and

                  (b) "Senior  Debt" shall mean the principal of and interest on
Debt  outstanding  for money borrow  instruments  or by a loan agreement or loan
agures, bonds,  mortgages,  deeds of trust or similar instruments (excluding any
of such Debt which by the terms of the  instrument  creating or  evidencing  the
same is subordinated to or pari passu with this Debenture).

                  (c)  "Capitalized  Lease"  shall  mean items of  equipment  or
machinery  acquired by the Maker so long as the lender's  security is limited to
such equipment or machinery, and any proceeds from the sale thereof.

                  (d) "Permitted  Liens" shall mean (i) any lien securing a tax,
assessment or other  governmental  charge or levy or the claim of a materialman,
mechanic,  carrier,  warehouseman or landlord for labor, materials,  supplies or
rentals  incurred  in the  ordinary  course  of  business;  and  (ii)  any  lien
constituting an encumbrance in the nature of zoning restrictions,  easements and
rights  or  restrictions  of record  on the use of real  property  that does not
materially  detract from the value of such property or impair the use thereof in
the business of the Maker.

         Subject to the rights of the holder of the Senior Debt and as otherwise
expressly provided herein, Maker hereby waives demand, protest,  presentment for
payment,  notice of  dishonor,  notice of protest,  diligence  in bringing  suit
against any party,  and hereby  consents that the time for payment of all or any
part of the principal amount, and of the interest thereon,  may be extended from
time to time by Payee  without  notice,  and that any such  extension  shall not
discharge or otherwise impair the obligations represented by this Debenture. The
foregoing  waivers shall not be deemed to waive the  requirement  of any notice,
demand or cure periods expressly provided for in this Debenture.

         THE  COMPANY  AND ANY  HOLDER  OF THIS  DEBENTURE  HEREBY  WAIVES  T IN
CONNECTION  WITH OR IN ANY WAY RELATED TO THIS  DEBENTURE OR THE  ENFORCEMENT OF
ANY OF THE HOLDER'S  RIGHTS AND  REMEDIES.  THE COMPANY  AND, BY ITS  ACCEPTANCE
HEREOF,  EACH HOLDER OF THIS DEBENTURE,  ACKNOWLEDGES  THAT IT MAKES THIS WAIVER
KNOWINGLY,   VOLUNTARILY   AND  ONLY  AFTER   THOROUGH   CONSIDERATION   OF  THE
RAMIFICATIONS  OF THIS  WAIVER  WITH ITS  ATTORNEY.  NEITHER THE COMPANY NOR ANY
HOLDER OF THIS DEBENTURE HAS AGREED WITH OR REPRESENTED TO THE OTHER

         All actions or  proceedings  with  respect to this  Agreement  shall be
instituted  exclusively  in the courts of the State of New York, New York County
or the  United  States  District  Court  sitting in New York,  New York,  and by
execution  and  delivery  of  this  Agreement,   both  parties  irrevocably  and
unconditionally  submit to the  personal  jurisdiction  of each such court,  and
irrevocably and unconditionally waive (X) any objection to the propriety of

                                       -3-

<PAGE>


jurisdiction,  service of process or venue in any of such courts,  (Y) any right
to a jury trial, and (Z) any claim that any action or proceeding  brought in any
of such courts has been brought in an inconvenient forum.

         The Company hereby  irrevocably  designates,  appoints and empowers C T
Corporation Systems with offices on the date hereof at 1633 Broadway, N.Y., N.Y.
10019 as its designee,  appointee and agent to receive,  accept and  acknowledge
for and on its behalf,  and in respect of its  property,  service of any and all
legal process,  summons, notices and documents which may be served in any action
or  proceeding  arising out of or related to this  Debenture.  If for any reason
such  designee,  appointee and agent shall cease to be available to act as such,
Issuer agrees to designate a new  designee,  appointee and agent in the State of
New York on the terms and for the  purposes of this  provision  satisfactory  to
Pledgee.  The Company further irrevocably  consents to service of process out of
court in any such  action or  proceeding  by the  mailing  of copies  thereof by
registered or certified mail, postage prepaid,  to the address for notice of the
Company  below,  such  notice to become  effective  30 days after such  mailing.
Nothing herein shall affect the right of the Payee to serve process in any other
manner  permitted by law or to commence legal  proceedings or otherwise  against
Issuer, as the case may be, in any other jurisdiction.

         All  demands  and  notices  to be given  hereunder  shall be  delivered
personally or sent by recognized  national overnight courier; in the case of the
Company,  addressed to its corporate  office at  Mountbattan  House,  9 Westhill
Street, P.O. Box N-10543,  Nassau,  Bahamas Attention:  Jeffrey Waterous, and in
the case of Payee, addressed to the address written above, in either case, until
a new address shall have been substituted by like notice.

         This  Debenture  shall be governed by and construed in accordance  with
the laws of the State of New York and shall be binding upon the  successors  and
assigns  of the Maker and inure to the  benefit of the  Payee,  its  successors,
endorsees and assigns.  If any term or provision of this Debenture shall be held
invalid,  illegal  or  unenforceable,  the  validity  of  all  other  terms  and
provisions hereof shall in no way be affected thereby.

         IN WITNESS  WHEREOF,  the  Company  has  caused  this  Debenture  to be
executed on its behalf by its duly authorized  officer on the day and year first
above written.

                               AMERICAN INTERNATIONAL PETROLEUM CORPORATION
                               OF COLOMBIA

                               By:
                                   ----------------------------------
                                       Chief Financial Officer

Acknowledged as to exercise rights:

MERCANTILE INTERNATIONAL PETROLEUM INC.

By:
   -----------------------------------

                                       -4-


                                                                    EXHIBIT 99.3

                                PLEDGE AGREEMENT

         THIS PLEDGE  AGREEMENT  (the  "Agreement")  made as of this 25th day of
February,  1997 by and among AMERICAN  INTERNATIONAL  PETROLEUM  CORP., a Nevada
corporation  having  offices at 444  Madison  Avenue,  New York,  New York 10022
("Pledgor"),   MERCANTILE   INTERNATIONAL   PETROLEUM   INC.  a  Cayman  Islands
Corporation  having offices at Mountbattan  House,  9 Westhill  Street,  Nassau,
Bahamas  ("Issuer") and MG TRADE FINANCE CORP.,  a Delaware  corporation  having
offices at 520 Madison Avenue, New York, New York 10022 ("Pledgee").

    WHEREAS, American International Refinery, Inc., a wholly-owned subsidiary of
Pledgor  ("Borrower")  has entered  into a Loan and  Security  Agreement,  dated
December 4, 1990, as subsequently  amended, with Pledgee (the "Loan Agreement"),
whereby  Pledgee  agreed to provide a loan facility to Borrower,  as a result of
which Borrower has incurred and will  hereafter  incur certain  liabilities  and
obligations to Pledgee; and

         WHEREAS,  Pledgor has agreed to guarantee Borrower's performance of its
obligations  under  the Loan  Agreement  pursuant  to the  terms of a  Corporate
Continuing Guarantee dated December 4, 1990 (the "Guarantee"); and

         WHEREAS,  Pledger has agreed to secure the  performance  by Borrower of
its  obligations  under the Loan  Agreement  by  pledging  the stock of American
International Refinery, Inc., Pledgor's wholly-owned subsidiary, pursuant to the
terms  of  a  Pledge   Agreement  dated  December  4,  1990  (the  "AIRI  Pledge
Agreement"); and

         WHEREAS,  Pledgor has agreed to grant further security and assurance to
Pledgee in order to secure the  performance by Borrower of such  obligations and
to that effect  pledge to Pledgee one million  (1,000,000)  shares of the common
stock of Issuer,  whose common shares are listed on The Toronto Stock  Exchange,
owned by Pledgor (the "Pledged Securities").

         NOW,  THEREFORE,  in  consideration  of the foregoing and for $1.00 and
other good and  valuable  consideration,  the receipt  and  adequacy of which is
hereby acknowledged, the parties hereto mutually agree as follows:

         1. Security Interest. As security for the Borrower's present and future
Obligations (as that term is defined in the Loan Agreement) to Pledgee under the
Loan  Agreement,  including any renewals or extensions  thereof,  and all of the
Pledgor's  present  and future  duties  and  obligations  to Pledgee  hereunder,
Pledgor hereby delivers, pledges and assigns to Pledgee and creates in Pledgee a
first security interest in all of its right, title and interest in, to and under
all of the  Pledged  Securities,  together  with all  rights and  privileges  of
Pledgor with respect thereto,  all proceeds,  income and profits thereof and all
property received in addition thereto, by reason thereof, in exchange thereof or
in  substitution  therefor  (all such  property  of  Pledgor  being  hereinafter
referred to as the "Collateral").

         2. Dividends,  Options or Other Adjustments.  Prior to the full payment
and  performance  by the Borrower of its  Obligations  to Pledgee under the Loan
Agreement,  but not longer than the period this Agreement is in effect,  Pledgee
shall  receive,  as Collateral,  any and all  additional  shares of stock or any
other  property of any kind (other than cash)  distributable  on or by reason of
the Collateral pledged hereunder,  whether in the form of or by way of warrants,
dividends, total or partial liquidation,  conversion,  exchange,  prepayments or
redemptions  (in whole or in part),  or otherwise.  If any additional  shares of
capital stock, instruments,  or other property against which a security interest
can only be perfected by possession by Pledgee, which are distributable on or by
reason of the Collateral  pledged  hereunder,  shall come into the possession or
control of Pledgor,  Pledgor  shall hold such  property in trust for Pledgee and
shall  transfer  and  deliver  the same to  Pledgee  within 5 days of  Pledgor's
receipt thereof.


                                       -1-

<PAGE>




         3. Delivery of Share  Certificates;  Stock Powers.  All instruments and
share  certificates  representing  the  Collateral are being delivck powers duly
executed in blank, as appropriate. Pledgor shall promptly deliver to Pledgee, or
cause the Issuer or such other entity issuing  Collateral to deliver directly to
Pledgee, share certificates or other documents representing  Collateral acquired
or received after the date of this Agreement  together with assignments  thereof
and/or  stock  powers duly  executed in blank,  as  appropriate.  If at any time
Pledgee  notifies  Pledgor that  additional  stock  powers  endorsed in blank or
assignments are required,  Pledgor shall promptly execute and deliver such stock
powers and or assignments as Pledgee may request.

         4.  Power of  Attorney.  Pledgor  hereby  constitutes  and  irrevocably
appoints Pledgee,  with full power of substitution and revocation,  as Pledgor's
true and lawful  attorney-in-fact for the purpose of carrying out the provisions
of this  Agreement  upon the  occurrence  of an Event of  Default  and after the
applicable cure period  described in Section 11 of the Loan Agreement and to the
full extent  permitted  by law to exercise  all rights and  remedies  granted to
Pledgee hereunder, including to affix to certificates and documents representing
the Collateral the assignments or stock powers  delivered with respect  thereto,
to transfer or cause the transfer of the Collateral,  or any part thereof on the
books of the  corporation  or other  entity  issuing  the  same,  to the name of
Pledgee or Pledgee's  nominee and  thereafter to exercise as to such  Collateral
all the rights,  power and remedies of an owner. Pledgee shall act in good faith
in exercising  the rights granted to it pursuant to this Section 4. The power of
attorney  granted  pursuant to this Agreement and all authority hereby conferred
is granted and conferred solely to protect Pledgee's  interest in the Collateral
and shall not impose any duty upon  Pledgee to  exercise  any such  power.  This
power of attorney  shall be irrevocable as one coupled with an interest prior to
the  satisfaction  in full of all of Pledgor's  and  Borrower's  Obligations  to
Pledgee.


         5.       Inducing Representations.

         (a) Pledgor represents and warrants to Pledgee that:

               (i) It is the sole  legal and  beneficial  owner of, and has good
and marketable title to, the Collateral,  free and clear of all pledges,  liens,
security interests and other encumbrances and restrictions,  on the transfer and
assignment  thereof,  other than the security interest created by this Agreement
and the  restrictions  on transfer set forth in Section 11(i) of this Agreement,
and it has the unqualified  right and authority to execute this Agreement and to
pledge the Collateral to Pledgee as provided for herein:

             (ii) There are no outstanding options, warrants or other agreements
with respect to the Collateral;

                  (iii) (A) The  Collateral  is fully paid,  validly  issued and
non-assessable;  (B) the holder or holders of such  Collateral  are not and will
not be subject to any personal liability as such holder; and (C) such Collateral
is not  subject to any  contractual  restrictions  to which  Pledgor is a party,
other  than the  restriction  on  transfer  set forth in  Section  11(i) of this
Agreement, or any charter, by-law, statutory or other contractual  restrictions,
governing  the  issuance,  transfer,  ownership  or control of such  Collateral,
except as any sale or  transfer  may be limited  under the rules of the  Toronto
Stock Exchange and under Canadian  provincial and United States Federal or state
security laws;

               (iv) Any consent,  approval or authorization of or designation or
filing with any authority  which is required in  connection  with the pledge and
security interest granted under this Agreement has been obtained or effected;

                    (v)  The  execution,   delivery  and   performance  of  this
Agreement by Pledgor will not violate any  provision of law,  rule or regulation
or any order of any court or other  governmental  agency to which it is subject,
its Certificate


                                       -2-

<PAGE>



of Incorporation and By-Laws, any provision of any indenture, agreement or other
instrument  to which it is a party  or by which it or any of its  properties  or
assets are bound, or be in conflict with, result in a breach of, or constitute a
default  under (with or without  notice or lapse of time),  any such  indenture,
agreement or other  instrument,  or result in the creation or  imposition of any
lien,  charge or encumbrance of any nature whatsoever upon any of its Properties
or assets; and

                   (vi) It has  deposited  with or caused to be  deposited  with
Pledgee the Pledged  Securities  duly  endorsed  in blank or  accompanied  by an
assignment or assignments sufficient to transfer title thereto.

                   (vii) The Guarantee  Agreement and the AIRI Pledge  Agreement
are in full force and effect and will  continue to be so,  without  amendment or
modification by virtue of the execution of this Agreement,  the amendment to the
Loan  Agreement of even date in the form  attached  hereto as Exhibit A, and all
the transactions described therein and related thereto.

         (b) Issuer represents and warrants to Pledgee that

                  (i) (A) The  Collateral  is fully  paid,  validly  issued  and
non-assessable;  (B) that holder or holders of such  Collateral are not and will
not be  subject  to any  personal  liability  as such  holder;  (C) there are no
outstanding   options,   warrants  or  other  agreements  with  respect  to  the
Collateral;   and  (D)  the  Collateral  is  not  subject  to  any   contractual
restrictions to which the Issuer is a party, or any charter,  by law,  statutory
or other contractual restrictions,  governing the issuance,  transfer, ownership
or control of such  Collateral,  except as any sale or  transfer  may be limited
under Canadian, Federal or State security laws, or as set forth herein;

                  (ii) Any consent,  approval or authorization of or designation
of filing with any authority which is required in connection with the pledge and
security interest granted under this Agreement has been obtained or effected;

                  (iii)  The  execution,   delivery  and   performance  of  this
Agreement by Issuer will not violate any provision of law, rule or regulation or
any order of any court or other governmental agency to which it is subject,  its
Certificate  of  Incorporation  and By-Laws,  any  provision  of any  indenture,
agreement  or other  instrument  to which it is a party or by which it or any of
its properties or assets are bound,  or be in conflict with,  result in a breach
of, or  constitute a default  under (with or without  notice or lapse of time or
both),  any such  indenture,  agreement  or other  instrument,  or result in the
creation  of  imposition  of any  lien,  charge  or  encumbrance  of any  nature
whatsoever upon any of its properties or assets.

         6.  Obligations of Pledgor.  Pledgor further  represents,  warrants and
covenants to Pledge that:

                  (a) It will not sell,  transfer or convey any  interest in, or
suffer or permit any lien or  encumbrance to be created upon or with respect to,
any of the  Collateral  it  purports  to own (other  than as created  under this
Agreement)  during  the term of the  pledge  established  hereby  unless the net
proceeds of the  aforementioned  conveyance  are paid to Pledgee in reduction of
Borrower's Obligation under the Loan Agreement;

                  (b) It will,  at its own  expense at any time and from time to
time at  Pledgee's  request,  do,  make  procure,  execute and deliver all acts,
things,  writings,  assurances and other documents as may be proposed by Pledgee
to  further  preserve,  establish,  demonstrate  or  enforce  Pledgee's  rights,
interests and remedies created by, provided in or emanating from this Agreement;
and



                                       -3-

<PAGE>



                  (c) It will not take any  action  or omit to take any  action,
the  effect  of  which is to  prevent  Pledgee  from  exercising,  or to  impair
Pledgee's ability to exercise, it rights under Section 11(a) of this Agreement.


         7. Obligations of Pledgee.  Pledgee represents,  warrants and covenants
to  Pledgor  that,  except as  permitted  by this  Agreement,  it will not sell,
transfer or convey any interest in, or suffer or permit any lien or  encumbrance
to be created  upon or with  respect  to,  any of the  Collateral,  except  that
Pledgee may assign the security interest granted hereunder.

         ny action or omit to take any action, the effect of which is to prevent
Pledgee from exercising,  or to impair Pledgee's ability to exercise, its rights
under Section 11(a) of this Agreement.


      9. Rights of Pledgor.

                So long as no Event of Default has  occurred  and is  continuing
after the applicable cure period  described in Section 11 of the Loan Agreement,
if any, and so long as Pledgee has not  transferred  the  Collateral  to its own
name:

                  (i)  Pledgor  shall be entitled to receive and retain any cash
                  dividends or cash interest  payments  paid on the  Collateral;
                  and

                  (ii) Pledgor shall be entitled to vote or consent with respect
                  to the  Collateral  in any manner not  inconsistent  with this
                  Agreement or the  Guarantee.  Pledgor hereby grants to Pledgee
                  an irrevocable proxy to vote the Collateral, which proxy shall
                  be effective upon the occurrence and  continuation of an Event
                  of Default and upon Pledgee transferring the Collateral to its
                  own name.

                  (iii) Pledgor shall have the right to demand from time to time
                  all or a portion of the Collateral be transferred on Pledgee's
                  behalf  to  brokers  for sale and the  application  of the net
                  proceeds of such sale to repay  Borrower's  Obligations  under
                  the Loan Agreement.

         Upon the request of Pledgee,  Pledgor agrees to deliver to Pledgee such
further evidence of such irrevocable proxy or such further  irrevocable  proxies
to vote the Collateral purported to be owned by Pledgor as Pledgee may request.

         10.  Rights of Pledgee.  Pledgee  may at any time and  without  notice,
discharge any taxes,  liens,  security interests or other encumbrances levied or
placed on the  Collateral or pay for the  maintenance  and  preservation  of the
Collateral;  the  amount  of such  payments,  plus any and all  fees,  costs and
expenses of Pledgee (including reasonable attorneys' fees and disbursements), in
connection  therewith,  shall, at Pledgee's  option, be reimbursed by Pledgor on
demand with  interest  thereon at a rate  equivalent to 3 percent (3%) above the
floating  prime  rate (or the  "base  rate" if  there is no prime  rate  then in
effect) charged by The Chase Manhattan Bank, N.A., New York, New York.

         11. Event of Default; Remedies.

                  (a) Pledgee may:

                (i) At any time  following the occurrence of an Event of Default
and prior to the cure thereof,  cause the  Collateral to be  transferred  to its
name or to the name of its nominee or nominees and  thereafter  exercise all the
rights of an owner of such Collateral,

                    (ii) At any time  following  the  occurrence  of an Event of
Default and prior to the cure thereof, subject to Section 11(i) below, sell the


                                       -4-

<PAGE>



Collateral  on such terms and in such  manner as Pledgor  desires in  compliance
with the Uniform Commercial Code as in effect in the State of New York;

              (iii) At any time following the occurrence and  continuation of an
Event of Default and prior to the cure thereof,  collect by legal proceedings or
otherwise all dividends, interest, principal payments, capital distributions and
other sums now or hereafter payable on account of said Collateral, and apply the
same to any of Pledgor's  Obligations  under the Loan Agreement,  in such manner
and order as Pledgee may decide in its sole discretion; and

               (iv) At any time  following the occurrence of an Event of Default
and  prior  to the  cure  thereof,  enter  into  any  extension,  subordination,
reorganization,  deposit,  merger,  or  consolidation  agreement,  or any  other
agreement relating to or affecting the Collateral,  and in connection  therewith
deposit or surrender  control of such  Collateral  thereunder,  and accept other
property  in  exchange  therefor  and hold and apply such  property  or money so
received in accordance with the provisions hereof.

                  (b) All of the Pledgee's  rights and  remedies,  including but
not limited to the foregoing, shall be cumulative and not exclusive and shall be
enforceable  alternatively,  successively  or  concurrently  as Pledgee may deem
expedient.

                  (c) Pledgee  may elect to obtain the advice of any  investment
banking firm with respect to the method and manner of sale or other  disposition
of any of the Collateral,  the best price reasonably  obtainable  therefor,  the
consideration of cash and/or credit terms, or any other details  concerning such
sale or disposition.  Pledgee, in its sole discretion, may elect to sell on such
credit  terms which it deems  reasonable.  All  payments  received by Pledgee in
respect of a sale of Collateral  shall be applied to the Borrower's  Obligations
under  the Loan  Agreement  in the  manner  determined  by  Pledgee  in its sole
discretion, as and when such payments are received.

                  (d) Pledgor  recognizes that Pledgee may be unable to effect a
public  sale of all or a part of the  Collateral  by reason  oSecurities  Act of
Canada,  Securities Act of 1933, as amended,  and state securities laws, and may
be compelled to resort to private sales to a restricted  group of purchasers who
will be obliged to agree,  among other  things,  to acquire the  Collateral  for
their own account,  for investment and not with a view for the  distribution  or
resale thereof.  Pledgor acknowledges and agrees, subject to Section 11(i), that
Pledgee may sell the Collateral in one or more private sales in accordance  with
the Uniform Commercial Code as enacted in New York and any other applicable law,
and that Pledgee has no obligation to delay the sale of any  Collateral  for the
period of time necessary to permit the registration of the Collateral for public
sale under the Act.  Pledgor  agrees that a private sale or sales made under the
foregoing  circumstances  shall be deemed  to have  been made in a  commercially
reasonable manner.

          (e) If any consent,  approval or authorization of any state, municipal
or other  governmental  department,  agency or authority  should be necessary to
effectuate  any sale or other  disposition  of the  Collateral,  or any  partial
disposition of the Collateral,  Pledgor agrees to execute all such  applications
and other  instruments  as may be required in connection  with securing any such
consent,  approval or authorization,  and will otherwise use its best efforts to
secure the same.  Pledgor  further agrees to use its best efforts to secure such
sale or other  disposition  of the  Collateral  as  Pledgee  may deem  necessary
pursuant to the terms of this Agreement.

          (f) Upon any sale or other  disposition  pursuant  to this  Agreement,
Pledgee  shall have the right to deliver,  assign and transfer to the  purchaser
thereof the  Collateral so sold or disposed of. Each  purchaser at any such sale
or other disposition (including Pledgee) shall hold the Collateral free from any
claim or right of any kind whatsoever, including any equity or right of


                                       -5-

<PAGE>



redemption of Pledgor. Pledgor specifically waives, to the extent permittedaw or
not prohibited by this  Agreement,  all rights of redemption,  stay or appraisal
which it had or may  have  under  any rule of law or  statute  now  existing  or
hereafter adopted.

                  (g) Pledgee  shall not be  obligated to make any sale or other
disposition,  unless the terms thereof shall be satisfactory to it. Pledgee may,
without  notice or  publication,  adjourn any private or public sale,  and, upon
five (5) days' prior  notice to Pledgor,  hold such sale at any time or place to
which  the same may be so  adjourned.  In case of any sale of all or any part of
the  Collateral,  on credit or future  delivery,  the  Collateral so sold may be
retained by Pledgee until the selling  price is paid by the  purchaser  thereof,
but Pledgee shall incur no liability in case of the failure of such purchaser to
take up and pay for the property so sold and, in case of any such failure,  such
property may again be sold as herein provided.

          (h) Subject to subsection  11(i) below,  at any time after (i) Pledgor
breaches its  representation,  warranty and covenant  under Section 6(c) of this
Agreement  or (ii)  the  Issuer  breaches  its  representations,  warranties  or
covenants under Section 7 of this Agreement, (either such event shall constitute
a "Further  Default"),  Pledgee may sell the  Collateral in accordance  with the
terms  set  forth  herein  or in  accordance  with  the  provisions  of the Loan
Agreement  respecting  the  disposition  of  Collateral  as that term is defined
therein.

          (i) The Pledgee shall sign an  acknowledgment  (the  "Acknowledgment")
with Issuer that for so long as it holds the Pledged Securities, the sale of the
Pledged Securities are subject to the following restrictions:

(A)      No Pledged  Securities shall be sold to any "U.S. person" (as such term
         is defined in Regulations S promulgated  under the U.S.  Securities Act
         of 1933),  except in compliance with applicable U.S.  federal and state
         securities law;

(B)      No Pledged Securities shall be sold in Canada, including on The Toronto
         Stock  Exchange,  or to any  resident  of Canada  until forty (40) days
         after the execution date of this Agreement,  and, in any event, only in
         compliance with applicable law;

(C)      Pledgee shall not sell into the market on any trading day more than 10%
         of the total number of shares of the Issuer traded on The Toronto Stock
         Exchange on the preceding twenty (20) trading days prior to such sale;

(D)      Notwithstanding   (C)  above,  the  maximum  total  number  of  Pledged
         Securities that may be sold into the market by Pledgor and Pledgee over
         any five (5)  consecutive  trading days shall be 250,000  shares of the
         Common  Shares of Issuer,  with Pledgor  agreeing to defer its sales of
         Common Shares of Issuer to the extent  Pledgee  wishes to sell in order
         not to violate this provision;

(E)      Pledgee shall not sell,  transfer or otherwise dispose of more than the
         number of Pledged  Securities  representing 5% of the then  outstanding
         shares of the Issuer to any party or group of related  parties  without
         the prior written consent of the Issuer; and

(F) Pledgee shall not short sell the shares of the Issuer at any time.

         As used  herein,  "Event of  Default"  shall mean and  include  (i) the
occurrence  of any Event of Default  under the Loan  Agreement or the  Guarantee
(ii) any material  misrepresentation by Pledgor or the Issuer in or with respect
to any provision of this  Agreement,  (iii) the failure of Pledgor or the Issuer
to perform any  material  obligation,  or the breach of any  material  covenant,
under


                                       -6-

<PAGE>



this Agreement, or (iv) any attachment of the Collateral at any time pursuant to
any court order or other legal process.

         12. Disposition of Proceeds. The proceeds of any sale or disposition of
all or any part of the  Collateral  shall be applied by Pledgee in the following
order:

           (a) to the payment in full of the costs and  expenses of such sale or
sales,  collections,  and the  protection,  declaration  and  enforcement of any
security  interest granted  hereunder  including the reasonable  compensation of
Pledgee's agents and attorneys; and

           (b) to the payment to Pledgee of an amount equal to of the Borrower's
Obligations to Pledgee under the Loan Agreement; and

                           (c) to the  payment to Pledgor  of any  surplus  then
remaining from such  proceeds,  subject to the rights of any holder of a lien on
the Collateral of which Pledgee has actual notice.

         13. Termination. This Pledge Agreement shall continue in full force and
effect until the earlier of the

                  (a) date on which  all the  Borrower's  Obligations  under the
Loan Agreement and Pledgor's  obligations under this Agreement have been paid in
full and satisfied or

               (b) the payment in full of the Issuer's  Notes referred to in the
Loan  Agreement,   together  with  any  accrued  and  unpaid  interest  and  the
satisfaction of Pledgor's obligations hereunder.

         14. Expenses of Pledgee.  All expenses  (including  reasonable fees and
disbursements  of counsel)  incurred by Pledgee in connection with any actual or
attempted  sale,   exchange  of,  or  any  enforcer   whether   directly  or  as
attorney-in-fact  pursuant to a power of attorney or other authorization  herein
conferred,  for the purpose of  satisfaction  of any of  Borrower's  Obligations
under the Loan  Agreement or of any  additional  amounts  owing by Pledgor or to
cover Pledgee's  costs of acting against the  Collateral,  shall be deemed to be
part of Borrower's  Obligations  and Pledgee may apply the Collateral to payment
of or reimbursement of itself for such expenses.

         15. General Provisions.

                  (a)  Pledgee  and its  assigns  shall  have no  obligation  in
respect  of the  Collateral,  except  to use  reasonable  care  in  holding  the
Collateral  and to hold and dispose of the same in accordance  with the terms of
this Agreement.  Pledgee shall be deemed to have used reasonable care in holding
the  Collateral  if it  exercises  the same  degree of care with  respect to the
Collateral as it exercises with respect to its own property.

                  (b)  The  Issuer,  on its  own  behalf  and on  behalf  of its
successors  and  assigns,  solely in its  capacity as issuer of the  Collateral,
hereby  acknowledges  Pledgee's  security interest in the Collateral and further
agrees (i) to deliver to Pledgee  any and all  instruments  and/or  certificates
evidencing any right, option or warrant,  and all new, additional or substituted
securities  issued  to  Pledgor  by  virtue  of its  ownership  of  the  Pledged
Securities or upon exercise by Pledgor of any option,  warrant or right attached
to the Pledged  Securities  owned by Pledgor,  and (ii) upon  written  notice by
Pledgee that an Event of Default has occurred and is  continuing  (which  notice
shall be  conclusive),  to pay Pledgee any and all cash dividends which might be
declared and payable (including any unpaid dividend accrued prior to the date of
such notice) on such Pledged Securities. Any and all actions taken by the Issuer
pursuant  to this  paragraph  (b) shall be deemed  to have been  taken  upon the
irrevocable request and instructions of Pledgor, and are hereby confirm



                                       -7-

<PAGE>



                  (c) Any notice or other communication given hereunder shall be
in writing and sent by  registered or certified  mail,  postage  prepaid,  or by
telecopy, as follows:

If to Pledgor:

American International Petroleum Corp.
444 Madison Avenue
New York, NY  10022
Attention: Dr. George N. Faris
Telecopier No. (212) 688-6057

If to Pledgee:

MG Trade Finance Corp.
520 Madison Avenue
New York, NY  10022
Attention: President
Telecopier (212) 223-0627

If to Issuer:

Mercantile International Petroleum, Inc.
Mountbattan House
9 Westhill Street
P.O. Box N-10543
Nassau, Bahamas
Attention: Jeffrey Waterous
Telecopier No. (242) 356-0201

If to the Custodian:

Duker Barrett Gravante & Markel LLP
1585 Broadway
New York, New York  10036
Attention:  Kathleen M. Franklin, Esq./Michael Vogel, Esq.
Telecopier No. (212) 969-5650

Any party hereto may change its address for notice by giving  notice  thereof to
the other party in accordance with the provisions of this paragraph.

                  (d) No  failure on the part of  Pledgee  to  exercise,  and no
delay in exercising,  any right,  power or remedy  hereunder  shall operate as a
waiver  thereof,  nor shall any  single or  partial  exercise  by Pledgee of any
right,  power or remedy hereunder preclude any other or future exercise thereof,
or the  exercise  of any other  right,  power or  remedy.  The  remedies  herein
provided are cumulative and are not exclusive of any remedies provided by law or
any other agreement.  The  representations,  covenants and agreements of Pledgor
and the Issuer herein  contained  shall survive the date hereof.  This Agreement
shall be binding  upon and inure to the benefit of the parties  hereto and their
respective  successors  and  legal  representatives.  THIS  AGREEMENT  SHALL  BE
GOVERNED BY AND CONSTRUED IN ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW YORK,
EXCEPT  THAT  ALL  MATTERS  INVOLVING  SECURITY  INTERESTS  IN  AND/OR  LIENS ON
COLLATERAL LOCATED IN STATES OTHER THAN NEW YORK SHALL BE GOVERNED BY THE LAW OF
THE STATE IN WHICH THE SUBJECT COLLATERAL IS LOCATED.

                  (e) This Agreement and the other agreements to which it refers
constitute  the  complete  agreement  between  the parties  with  respect to the
subject matter and may not be changed,  modified,  waived, amended or terminated
orally,  but only by a writing  signed by the party to be charged.  There are no
agreements  between the parties with respect to the subject matter which are not
in a writing signed by the party to be charged.  This Agreement replaces any and
all proposals,


                                       -8-

<PAGE>



commitments  and promises with respect to the subject  matter,  all of which are
merged herein and replaced hereby.

                  (f) The Pledged  Securities,  in form acceptable for transfer,
shall  be held in the  custody  of Duker  Barrett  Gravante  &  Markel  LLP (the
"Custodian").  Upon receipt by the Custodian of a certif Default has occurred or
that Pledgor has made a demand to liquidate a portion of the Pledged  Securities
pursuant to Section 9(a)(iii) of this Agreement, the Custodian shall deliver the
Pledged  Securities to Pledgee or to a broker, on Pledgee's behalf,  pursuant to
Section  9(a)(iii)  of  this  Agreement.  Upon  receipt  by the  Custodian  of a
certificate  signed by the Pledgee  stating that the  Borrower's  and  Pledgor's
Obligations  to  Pledgee,  have  been  satisfied  in full or this  Agreement  is
terminated, the Custodian shall deliver the Pledged Securities to the Pledgor.

         The  Custodian  shall  exercise  reasonable  care in the custody of the
Pledged  Securities in its  possession at any time,  but shall be deemed to have
exercised  reasonable  care if the Pledged  Securities  are  accorded  treatment
substantially  equal to that which the  Custodian  accords its own  property (it
being   understood  that  the  Custodian  shall  have  no   responsibility   for
ascertaining  or taking  action with respect to calls,  conversions,  exchanges,
maturities, tenders or other matters relevant the Pledged Securities and whether
or not the Custodian has or is deemed to have knowledge of such matters), unless
the Custodian is expressly  directed to take such action upon written request of
Pledgee,  but no failure to comply with any such  request nor any omission to do
any such act  requested  by the  Pledgee  shall be deemed a failure to  exercise
reasonable  care, nor shall any failure of the Custodian to take necessary steps
to preserve rights against any parties with respect to the Pledged Securities in
its  possession be deemed a failure to exercise  reasonable  care. The Custodian
shall not be liable  for any  mistake of fact or error of  judgment,  or for any
acts or omissions of any kind unless  caused by its wilful  misconduct  or gross
negligence.

         The  Custodian  may act in reliance  upon any  instrument  or signature
believed  to be genuine and may assume  that any person  purporting  to give any
writing,  notice, advice or instruction in connection with the provisions hereof
has been duly authorized to do so.

         The  Custodian  does not have  and  will not have any  interest  in the
Pledged Securities,  but is serving only as Custodian and having only possession
thereof.  Upon delivery of the Pledged Securities to Pledgor or Pledgee pursuant
to this Paragraph  15(f),  Custodian  shall be fully released from all liability
and obligations with respect to the Pledged Securities.

         Pledgee,  Pledgor and Issuer (solely with respect to the Issuer,  as to
events  resulting from a breach of its  representations  heand hold harmless the
Custodian  and its  partners,  employees and agents from and against any and all
claims,  injuries,  losses,  damages,  penalties,   actions,  judgments,  suits,
liabilities,  costs and expenses of whatever kind or nature (including,  without
limitation, fees and disbursements of counsel) which may at any time be asserted
against,  imposed  upon or  incurred  by the  Custodian  or any of is  partners,
employees  or agents in any way  relating  to or  arising  out of or  concerning
Custodian's  duties or services  hereunder.  If any action,  claim or proceeding
shall be brought or  asserted  against  the  Custodian  or any of its  partners,
employees or agents in respect of which  indemnity  may be sought from  Pledgee,
Pledgor and/or Issuer (solely with respect to the Issuer, as to events resulting
from a  breach  of its  representations  hereunder)  the  Custodian  or any such
partner,  employee or agent shall have the right to employ counsel of its choice
in the defense of any such action, claim or proceeding and the fees and expenses
of such counsel  shall be  immediately  paid by Pledgee,  Pledgor  and/or Issuer
(solely with respect to the Issuer,  as to events resulting from a breach of its
representations hereunder) to the Custodian or such counsel upon the Custodian's
request.



                                       -9-

<PAGE>



         The respective  indemnities of the Pledgee,  Pledgor and the Issuer set
forth in and made  pursuant  to this  Agreement  will  remain in full  force and
effect and will survive the termination of this Agreement.

                  (g)(i)  All  actions  or  proceedings  with  respect  to  this
Agreement  shall be  instituted  exclusively  in the  courts of the State of New
York,  New York County or the United States  District Court sitting in New York,
New  York,  and by  execution  and  delivery  of  this  Agreement,  all  parties
irrevocably and unconditionally submit to the personal jurisdiction of each such
court,  and  irrevocably  and  unconditionally  waive (X) any  objection  to the
propriety  of  jurisdiction,  service of process or venue in any of such courts,
(Y) anyy claim that any action or  proceeding  brought in any of such courts has
been brought in an inconvenient forum.

                    (ii) The Issuer hereby irrevocably designates,  appoints and
empowers  C T  Corporation  Systems  with  offices  on the date  hereof  at 1633
Broadway,  N.Y.,  N.Y.  10019 as its  designee,  appointee and agent to receive,
accept and  acknowledge  for and on its behalf,  and in respect of its property,
service of any and all legal process,  summons,  notices and documents which may
be  served  in any  action  or  proceeding  arising  out of or  related  to this
Agreement.  If for any reason such designee,  appointee and agent shall cease to
be  available  to act as  such,  Issuer  agrees  to  designate  a new  designee,
appointee  and agent in the State of New York on the terms and for the  purposes
of this provision  satisfactory to Pledgee.  Issuer further irrevocably consents
to service  of  process  out of court in any such  action or  proceeding  by the
mailing of copies thereof by registered or certified mail,  postage prepaid,  to
the address for notice of the Issuer herein,  such notice to become effective 30
days after such mailing. Nothing herein shall affect the right of the Pledgee to
serve  process  in any  other  manner  permitted  by law  or to  commence  legal
proceedings  or  otherwise  against  Issuer,  as the case may be,  in any  other
jurisdiction.

                  (h)  This   Agreement   may  be   executed   in  one  or  more
counterparts,  each of  which  shall  be  deemed  to be an  original,  and  such
counterparts,  together,  shall  constitute one and the same  instrument,  which
shall be sufficiently evidenced by any such original counterpart.

         Capitalized  terms  used but not  defined  herein  shall  have the same
meaning as in the Loan Agreement.




                                      -10-

<PAGE>


         IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Agreement on the date first above written.

                                      AMERICAN INTERNATIONAL PETROLEUM CORP.

                                      By:___________________________________
                                      Title:________________________________


                                      MG TRADE FINANCE CORP.

                                      By:___________________________________
                                      Title:________________________________


                                      MERCANTILE INTERNATIONAL PETROLEUM INC.

                                      By:_____________________________
                                      Title:___________________________


Acknowledged and Agreed to:

DUKER BARRETT GRAVANTE & MARKEL LLP

By:_______________________________
Title:____________________________
("Custodian")




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