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-






         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-





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-





                  (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-





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-





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-





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-





                  (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-





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-





         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-




         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")