FOURTH AMENDMENT

                                                        TO
                                     FIRST AMENDED AND RESTATED LOAN AGREEMENT
                                             DATED SEPTEMBER 23, 1996
                                   BY AND BETWEEN SABA PETROLEUM COMPANY, ET AL.
                                             AND BANK ONE, TEXAS, N.A.



         This Fourth  Amendment to the First Amended and Restated Loan Agreement
dated September 23, 1996 (this "Fourth Amendment") by and between SABA PETROLEUM
COMPANY, a Delaware corporation,  successor by merger to Saba Petroleum Company,
a Colorado  corporation  (the  "Borrower") et al., and BANK ONE, TEXAS,  N.A., a
national  banking  association (the "Bank") , is entered into on this 9th day of
September 1997.



                                         W I T N E S S E T H:

         Borrower and Bank have entered into a First  Amended and Restated  Loan
Agreement dated  September 23, 1996, as amended by the First  Amendment  thereto
dated November 5, 1996, the Second Amendment  thereto dated August 28, 1997, and
the Third  Amendment  thereto dated September 5, 1997  (collectively,  the "Loan
Agreement").



         Borrower has requested that Bank provide a term loan to Borrower in the
approximate amount of $10,000,000.00,  and that Bank amend certain provisions of
the Loan  Agreement,  and Bank  has  agreed  to such  amendments  to the  extent
expressly set forth herein.



        NOW, THEREFORE,  in consideration of the promises herein contained,  and
for other good and valuable consideration,  the receipt and sufficiency of which
are  acknowledged by the Borrower and the Bank, and each intending to be legally
bound hereby, the parties agree as follows:



I.      Specific Amendments to Loan Agreement.

Article I is hereby amended by adding or replacing, as applicable, the following
definitions:



"Fourth  Amendment"  means the Fourth  Amendment to this  Agreement  executed by
Borrower and Bank on September 9, 1997.



         "Notes"  means,  collectively,  the  Note and the  Term  Note,  and any
extension,  renewal,  rearrangement  of, or substitute for either of such Notes.
All references to the defined term,  "Note,  throughout  this  Agreement,  as it
existed  prior to the Fourth  Amendment,  shall be construed to refer to both of
the Notes,  with the  exception of the  references  to the term,  "Note,  in the
definitions  of "Loan Excess" and "Note,  11 and in Sections 2.01,  2.02,  2.04,
2.10,  2.12,  2.21, 3.01, and 3.03, all of which shall remain singular and shall
be construed to refer to the Note evidencing the Revolving Loan.



                                   "Statoil" means Statoil Exploration (US) Inc.
                                                         1


=88.10

         "Statoil Purchase" means the acquisition by SETI of those certain Oil &
Gas  Properties  described  on Exhibit  "All to that  certain  Purchase and Sale
Agreement dated August 19, 1997, between SETI and Statoil.



         Term Loan" means that  certain  term loan made or to be made by Bank to
Borrower pursuant to Section 2.23 hereof, to be evidenced by the Term Note.



         "Term Loan Maturity Date" means December 31, 1997.

         "Term Loan Rate" means:  (a) prior to December 1, 1997, the Bank's Base
Rate in effect  from time to time plus one  percent  (1%),  and (b) on and after
December  1,  1997,  the Bank's  Base Rate in effect  from time to time plus two
percent (2%).



         "Term Note" means the promissory  note dated September 9, 1997, made by
Borrower payable to the order of Bank, in substantially the form attached to the
First  Amendment  as  Exhibit  "A,"  together  with  all  deferrals,   renewals,
extensions,   amendments,   modifications  or  rearrangements   thereof,   which
promissory  note shall  evidence  the  advances to Borrower by Bank  pursuant to
Section 2.15 hereof.



         If  Termination  Date"  means July 1, 2002;  provided  that solely with
respect to Borrowing Base II Loans, "Termination Date" means April 30, 1998.



Section 2.13 is hereby amended to add the following  sentence at the end of such
Section.



Upon execution of the Fourth  Amendment,  Borrower shall pay to Bank a fee equal
to Two  Hundred  Thousand  Dollars  ($200,000.00)  as  consideration  for Bank's
agreement to make the Term Loan.



Article II is hereby amended to add the following new sections thereto:



         2.23     Term  Loan.  Subject  to the  terms and  conditions  and 
relying  on the  representations  and warranties  contained  in this  Agreement,
Bank agrees to make the Term Loan to Borrower in a single  advance on
September 9, 1997.



2.24 The Term Note.  The obligation of Borrower to repay
the Term Loan shall be evidenced by the Term Note.



         2.25  Repayment  of Term  Loan.  Interest  on the  Term  Note  shall be
calculated  at the Term Loan Rate per annum on the basis of a year of 365 or 366
days, as  applicable,  and for the actual  number of days elapsed,  and shall be
repaid by  Borrower  in  monthly  installments  on the  first day of each  month
following the advance from Bank to ]Borrower  pursuant to Section 2.23,  through
and including the Term Loan Maturity



222288.10

Date,  when the entire unpaid  balance of the Term Loan,  inclusive of principal
and interest, shall be paid in full.



Article III is hereby amended by adding the following new Section 3.16 thereto:



3.       16  Closing  of  Fourth  Amendment.  Prior to or  contemporaneous  with
the  funding  of the Term  Loan pursuant to the Fourth  Amendment,  in addition
to Borrower  satisfying the  requirements of the other applicable Sections of 
Article III, the Bank shall have received:



(a) Evidence satisfactory to the Bank, in its sole discretion,  that the Statoil
Acquisition  has been  unconditionally  consummated  and that SETI has  acquired
Marketable  Title to the Statoil  Properties,  subject only to filing for record
the assignment from Statoil to SETI of the Statoil Properties.



(b) The Term Note and the Fourth Amendment, duly executed on
behalf of Borrower.



(c) Such  Collateral  Documents  as may  reasonably  be requested by the Bank to
grant to the Bank,  under  Louisiana  law, a mortgage,  security  interest,  and
assignment of production on the Statoil  Properties,  the personal  property and
equipment  therein and  thereon,  the oil and gas  produced  therefrom,  and the
products and proceeds thereof, together with such financing statements as may be
reasonably  requested  by the Bank to perfect the liens and  security  interests
created by such  Collateral  Documents,  and such  letters  in lieu of  transfer
orders  as  may be  necessary  or  desirable  to  implement  any  assignment  of
production contained in or resulting from such Collateral Documents.



(d) A guaranty agreement duly executed by Sabacol, in form substantially similar
to the Guaranty heretofore  executed by each other Guarantor,  provided that the
Indebtedness  to be guaranteed  by Sabacol shall be limited to the  Indebtedness
evidenced by the Term Note.



(e) Certificates of the secretary or assistant secretary of Borrower,  SETI, and
Sabacol,  respectively,  attesting to the adoption of  resolutions  by Borrower,
SETI, and Sabacol  authorizing the  transactions by each such party as evidenced
by the Fourth Amendment.



(f)      A Compliance Certificate executed by Borrower.

(g)      Such other documents and instruments as Bank may
reasonably request.



222288.10

Section 5.01 is hereby  amended by adding the following  text at the end of such
Section:



         Borrower shall use the proceeds advanced under the Term Loan to make an
advance in a like amount to SETI,  which Borrower shall cause SETI to use solely
for the  purpose of  acquiring  the Statoil  Properties  pursuant to the Statoil
Acquisition.



II. Ratification of Guaranties.  Each Guarantor hereby ratifies and confirms its
liability under the Guaranty  heretofore executed by it, and confirms and agrees
that the same  continues  in full  force and effect  with  respect to all of the
Indebtedness  covered  by the  Loan  Agreement,  as the  same  may be  restated,
amended, modified,  renewed, or rearranged from time to time, including, but not
limited to, the  Indebtedness  evidenced by the Term Note. This  ratification is
given for the purpose of inducing the Bank to make the advances evidenced by the
Term Note,  and each  Guarantor  is aware that,  but for such  ratification  and
agreement  contained herein, the Bank would not extend such additional credit to
the Borrower.



III.  Reaffirmation  of  Representations  and Warranties.  To induce the Bank to
enter  into this  Fourth  Amendment,  the  Borrower  and each  Guarantor  hereby
reaffirms,  as of the date hereof, its representations and warranties  contained
in Article IV of the Loan Agreement and in all other documents executed pursuant
thereto, and additionally represents and warrants as follows:



        A.  The  execution  and  delivery  of  this  Fourth  Amendment  and  the
performance  by the Borrower and each  Guarantor of its  obligations  under this
Fourth Amendment are within the Borrower's and each Guarantor's power, have been
duly authorized by all necessary  corporate action,  have received all necessary
governmental  approval  (if any  shall  be  required)  , and do not and will not
contravene or conflict with any provision of law or of the charter or by-laws of
the ]Borrower or any Guarantor or of any agreement  binding upon the Borrower or
any Guarantor.



         13. The Loan Agreement as amended by this Fourth  Amendment  represents
the legal,  valid and binding  obligations  of the Borrower and each  Guarantor,
enforceable against each in accordance with their respective terms subject as to
enforcement only to bankruptcy, insolvency, reorganization,  moratorium or other
similar laws affecting the enforcement of creditors' rights generally.



C.   No Event of Default or Unmatured Event of Default
has occurred and is continuing as of the date hereof.



IV.      Defined Terms.  Except as amended hereby, terms used herein that are 
defined in the Loan Agreement shall have the same meanings herein.



222288.10                                                          4

V. Reaffirmation of Loan Agreement.  This Fourth Amendment shall be deemed to be
an amendment to the Loan Agreement,  and the Loan Agreement,  as further amended
hereby,  is hereby  ratified,  approved and confirmed in each and every respect.
All  references  to  the  Loan  Agreement  herein  and in  any  other  document,
instrument,  agreement or writing shall hereafter be deemed to refer to the Loan
Agreement as amended hereby.



VI. Entire Agreement.  The Loan Agreement,  as hereby further amended,  embodies
the entire  agreement  between the  Borrower,  the  Guarantors  and the Bank and
supersedes all prior proposals,  agreements and  understandings  relating to the
subject  matter  hereof.  The Borrower and each  Guarantor  certifies that it is
relying on no representation,  warranty,  covenant or agreement except for those
set  forth in the  Loan  Agreement  as  hereby  further  amended  and the  other
documents previously executed or executed of even date herewith.



VII.  Governing Law. THIS FOURTH AMENDMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE  WITH THE LAWS OF THE STATE OF TEXAS AND THE  APPLICABLE  LAWS OF THE
UNITED STATES OF AMERICA.  This Fourth Amendment has been entered into in Harris
County,  Texas,  and it shall be performable  for all purposes in Harris County,
Texas. Courts within the State of Texas shall have jurisdiction over any and all
disputes between the Borrower and the Bank, whether in law or equity, including,
but not  limited  to, any and all  disputes  arising  out of or relating to this
Fourth  Amendment  or any other  Loan  Document;  and venue in any such  dispute
whether in federal or state court shall be laid in Harris County, Texas.



viii. ' Severability.  Whenever possible each provision of this Fourth Amendment
shall  be  interpreted  in  such  manner  as to be  effective  and  valid  under
applicable  law,  but if  any  provision  of  this  Fourth  Amendment  shall  be
prohibited  by  or  invalid  under  applicable  law,  such  provision  shall  be
ineffective  to  the  extent  of  such   prohibition   or  invalidity,   without
invalidating the remainder of such provision or the remaining provisions of this
Fourth Amendment.



ix.  Execution in  Counterparts.  This Fourth  Amendment  may be executed in any
number of counterparts  and by the different  parties on separate  counterparts,
and each  such  counterpart  shall be  deemed  to be an  original,  but all such
counterparts shall together constitute but one and the same instrument,  and any
signed  counterpart  shall be  deemed  delivered  by the  party  executing  such
counterpart  if  sent  to  any  other  party  hereto  by  electronic   facsimile
transmission.



x .  Section Captions.
Amendment  are for  convenience  of  reference  only,  and shall not  affect the
construction of this Fourth Amendment.

Section captions used in this Fourth



XI.      Successors and Assiqns.  This Fourth Amendment shall be binding upon 
the Borrower, each Guarantor and the Bank and their respective successors and 
assigns, and shall inure to the benefit



222288.10                                                          5

of the Borrower, each Guarantor and the Bank, and the respective
successors and assigns of the Bank.



XII.  Non-Application  of Chapter 15 of Texas Credit  Codes.  The  provisions of
Chapter 15 of the Texas  Credit Code  (Vernon's  Texas Civil  Statutes,  Article
5069-15) are specifically declared by the parties hereto not to be applicable to
the Loan Agreement as hereby further  amended or any of the other Loan Documents
or to the transactions contemplated hereby.



xiii.    Notice.  THIS  FOURTH  AMENDMENT  TOGETHER  WITH  THE  LOAN  AGREEMENT,
AND THE  OTHER  LOAN  DOCUMENTS REPRESENT  THE  FINAL  AGREEMENT  ]BETWEEN  THE
PARTIES  AND MAY  NOT BE  CONTRADICTED  BY  EVIDENCE  OF  PRIOR,
CONTEMPORANEOUS  OR SUBSEQUENT  ORAL AGREEMENTS OF THE PARTIES.  THERE ARE NO 
UNWRITTEN ORAL  AGREEMENTS  BETWEEN THE PARTIES.



         IN  WITNESS  WHEREOF,  the  parties  hereto  have  caused  this  Fourth
Amendment to be duly executed as of the day and year first above written.



BORROWER

SABA PETROLEUM COMPANY



By:
         Bradley T. Katzung
         Vice President



                                                       BANK

BANK ONE, TEXAS, N.A.



By:

         Linda F. Masera
         Vice President



GUARANTORS:

SABA ENERGY OF TEXAS, INCORPORATED



By:
         Bradley T. Katzung
         President



SABA PETROLEUM, INC.



By: @ z       -.@ -
         Walton- C. Vance
         Secretary



222288.10                                                          6

SABA PETROLEUM OF MICHIGAN, INC.



                                                        By:
         Bradley T. Katzung
         President



MV VENTURES, G. P.

By:      Saba Energy of Texas, Incorporated,
                  Managing Partner



By:
         Bradley T. Katzung
         President



SABACOL, INC.



By:
Walton C. Vance

         Secretary



222288.10                                                          7

EXHIBIT "All



                                                  TERM NOTE

$9,687,769.00             Houston, Texas         September 9, 1997



                  FOR  VALUE  RECEIVED,   SABA  PETROLEUM  COMPANY,  a  Colorado
corporation,  whose  address is 3201  Airpark  Drive,  Suite 201,  Santa  Maria,
California  93455 (herein called "Maker") , promises to pay to the order of BANK
ONE, TEXAS,  NA, a national  banking  association  (herein called "Payee," which
term shall also refer to any subsequent  owner or holder of this Note),  the sum
of NINE MILLION SIX HUNDRED  EIGHTY-SEVEN  THOUSAND SEVEN HUNDRED SIXTY-NINE AND
N01100  DOLLARS  ($9,687,769.00)  , in  lawful  money of the  United  States  of
America,  together  with  interest  accruing  from  the date of  advance  on the
principal  amount from time to time remaining  unpaid,  at the varying per annum
rate from day to day equal to the lesser of (a) the Maximum Rate (as hereinafter
defined),  or (b) the Term  Loan  Rate  (as  prescribed  in the Loan  Agreement,
hereafter  defined) , calculated on a year of three hundred  sixty-five (365) or
three  hundred  sixty-six  (366)  days,  as  applicable.  All  payments  of both
principal and interest shall be payable to Payee at 910 Travis Street,  Houston,
Harris County,  Texas 77002,  or such other place as Payee may from time to time
designate to Maker in writing.



                  "Loan   Agreement['  means  that  certain  First  Amended  and
Restated Loan Agreement dated September 23, 1996, by and among Payee,  Maker, et
al., as heretofore amended and as the same may be hereafter  amended,  extended,
restated, rearranged and/or renewed from time to time.



                  "Maximum Rate" means the maximum rate of nonusurious  interest
from time to time  permitted by applicable  usury laws, as more fully defined in
the Loan Agreement.



                All  past due  principal  hereof  and  accrued  unpaid  interest
thereon shall bear interest from the maturity of such  principal and interest at
the lesser of (i) the Maximum Rate or (ii) the Term Loan Rate as  prescribed  in
the  Loan  Agreement,  calculated  on the  basis  of a  year  of  three  hundred
sixty-five (365) or three hundred sixty-six (366) days, as applicable.



The principal of the indebtedness  evidenced hereby shall be repaid on or before
December 31, 1997.



                  Interest  shall be paid monthly in arrears on the first day of
each calendar month commencing October 1, 1997, and continuing  regularly on the
first day of each calendar month  thereafter  until December 31, 1997,  when the
entire amount of accrued, unpaid interest, shall be due and payable.



Maker may prepay at any time in whole, or from time to time in part, and without
any premium or penalty therefor, the



222288.10                                                          1

Initials

principal amount hereof then remaining unpaid together with all accrued interest
payable on said  principal  so prepaid,  all as more fully set forth in the Loan
Agreement.  Any such prepayment  hereunder shall be applied first to accrued but
unpaid  interest  on the  principal  so prepaid,  and the  balance to  principal
installments  in the inverse order of maturity,  but no part  prepayment  shall,
until this Note is fully paid and satisfied,  affect the obligations to continue
to pay the regular installments required hereunder until the entire indebtedness
has been paid.



                  If any payment  hereunder  falls due on a Saturday,  Sunday or
public  holiday on which  commercial  banks in Houston,  Texas are  permitted or
required by law to be closed, the time for such payment shall be extended to the
next day on which the Payee is open for  business,  and such  extension  of time
shall be included in the calculation of interest accruing and payable hereunder.



                  Payment  of this Note is secured  by the  security  interests,
mortgages  and liens granted by Maker to Payee  pursuant to the Loan  Agreement,
the terms and conditions of which,  together with all amendments and supplements
thereto, are incorporated herein by reference.



                  Upon  happening of an Event of Default (as defined in the Loan
Agreement) specified in Subsections 7. 01 (f) or (g) of the Loan Agreement,  the
entire aggregate  principal amount of the indebtedness  evidenced hereby and the
interest accrued thereon shall automatically become immediately due and payable,
and during the continuation of any other Event of Default, Payee may declare the
entire aggregate principal amount of all indebtedness then outstanding hereunder
and the interest  accrued thereon  immediately due and payable.  In either case,
the entire  principal and interest shall  thereupon  become  immediately due and
payable,  without notice  (including,  without  limitation,  notice of intent to
accelerate   maturity  or  notice  of  acceleration  of  maturity)  and  without
presentment,  demand,  protest,  notice of protest or other notice of default or
dishonor of any kind,  except as provided to the contrary  elsewhere in the Loan
Agreement, all of which are hereby expressly waived by the Maker.



                  If this  Note or any  installment  hereof is not paid when due
(whether the same becomes due by demand,  acceleration  or otherwise)  and it is
placed in the hands of an attorney for collection,  or if collected  through any
legal  proceedings  including  but not limited to suit,  probate,  insolvency or
bankruptcy proceedings, Maker agrees to pay reasonable attorneys, fees and costs
of collection.



                  It is the  intention  of the  parties  hereto to  comply  with
applicable  usury  laws;  accordingly,  notwithstanding  any  provision  to  the
contrary in this Note, or in any of the  documents  securing  payment  hereof or
otherwise relating hereto including without limitation the Loan Agreement, in no
event  shall  this Note or such  documents  require  the  payment  or permit the
collection of interest



222288.10                                                          2

Initials

in excess of the  maximum  amount  permitted  by such law. If any such excess of
interest is  contracted  for,  charged or received  under this Note or under the
terms of any of the  documents  securing  payment  hereof or otherwise  relating
hereto, or in the event the maturity of the indebtedness  evidenced by this Note
is  accelerated  in whole or in part,  or in the  event  that all or part of the
principal  or interest of this Note shall be prepaid,  so that under any of such
circumstances  the amount of interest  contracted for, charged or received under
this Note or under any of the instruments  securing  payment hereof or otherwise
relating hereto,  on the amount of principal  actually  outstanding from time to
time under this Note shall  exceed the maximum  amount of interest  permitted by
applicable  usury  law,  then  in any  such  event  (a) the  provisions  of this
paragraph  shall govern and control,  (b) neither  Maker nor any other person or
entity now or hereafter liable for the payment hereof, shall be obligated to pay
the amount of such  interest  to the extent  that it is in excess of the maximum
amount of interest  permitted by applicable usury law, (c) any such excess which
may have been  collected  shall be either  applied as a credit  against the then
unpaid principal amount hereof or refunded to Maker, at Payee's option,  and (d)
the effective  rate of interest  shall be  automatically  reduced to the maximum
lawful  contract  rate allowed  under  applicable  usury law as now or hereafter
construed  by the courts  having  jurisdiction  thereof.  Without  limiting  the
foregoing,  all calculations of the rate of interest  contracted for, charged or
received  under this Note or under such other  documents  which are made for the
purpose of  determining  whether such rate exceeds the maximum  lawful  contract
rate, shall be made, to the extent  permitted by law, by amortizing,  prorating,
allocating  and  spreading  in equal parts  during the period of the full stated
term of the indebtedness  evidenced hereby,  all interest at any time contracted
for,  charged or received  from Maker or otherwise by Payee in  connection  with
such indebtedness.



                  Except as otherwise  expressly provided to the contrary in the
Loan Agreement, Maker and any and all sureties, guarantors and endorsers of this
Note and all other  parties now or  hereafter  liable  hereon,  severally  waive
grace, demand,  presentment for payment, notice of dishonor, notice of intent to
accelerate,  notice of  acceleration,  protest and notice of protest,  any other
notice and  diligence in  collecting  and bringing suit against any party hereto
and agree (i) to all extensions and partial  payments,  with or without  notice,
before or after maturity,  (ii) to any substitution,  exchange or release of any
security now or hereafter given for this Note, (iii) to the release of any party
primarily or secondarily  liable hereon,  and (iv) that it will not be necessary
for Payee,  in order to enforce  payment of this  Note,  to first  institute  or
exhaust  Payee's  remedies  against Maker or any other party liable  therefor or
against any security for this Note.



                Any  check,  draft,  money  order or other  instrument  given in
payment of all or any  portion  hereof may be  accepted  by Payee and handled in
collection in the customary  manner,  but the same shall not constitute  payment
hereunder or diminish any rights of



222288.10                                                          3

Initials

Payee  except to the extent  that actual cash  proceeds of such  instrument  are
unconditionally received by Payee.



                  INTERNAL  LAWS OF THE STATE OF TEXAS AND THE UNITED  STATES OF
AMERICA;  PROVIDED,  HOWEVER, THAT VERNON'S TEXAS CIVIL STATUTES,  ARTICLE 5069,
CHAPTER 15 (WHICH REGULATES CERTAIN REVOLVING CREDIT LOAN ACCOUNTS AND REVOLVING
TRIPARTY ACCOUNTS) SHALL NOT APPLY TO THIS NOTE.



SABA PETROLEUM COMPANY



By:
      Bradley T. Katzung
      Vice President





Exhibit A


                                                                                           


Lease Date          Lessor                   Lessee              *RecordingData      Gross Acres         **Net Acres
                    Board of Levee           Humble Oil &         COB 66,            2258.5                   2258.5
Lease 1 11-08-28    Commissioners -          Refining Co.         Page 518
                    Orleans Levee District
Lease 2 01-23-36    State of LA              W. T. Burton         COB 8 1,           576                      576
                    State Lease No. 3 3 5                         Page 004
Lease 3 11-21-41    State of LA              Humble Oil &         COB 105,           450                      450
                    State Lease No. 508      Refining Co.         Page 392
Lease 4 03-11-47    Board of Levee           The Superior         COB 130,           132.85                   132.85
                    Commissioners            Oil Company          Page 556
                                                                                 TOTAL3417.353417.35



*References to Recording Data are to the public records of Plaquemines Parish, Louisiana.



**As the leases are more fully described on pages 2 and 3 of Exhibit A



Exhibit A,     Page I of 5

Lease 1



That certain oil, gas and mineral lease effective  November 8, 1928,  granted by
the Board of Levee  Commissioners  of the  Orleans  Levee  District  in favor of
Humble oil & Refining  Company,  recorded in COB 66, Folio 518,, LESS AND EXCEPT
land lying within the surface boundaries of the Pengo Petroleum,  Inc. Voluntary
Unit "B" created by instrument  dated  effective  July 1, 1978,  recorded in COB
482, Folio 429, Entry No. 76 containing  132.846 acres,  more or less,  from the
surface down to the stratigraphic equivalent of the base of the TEXT W Sand seen
at a depth of 13, 500 feet  measured  depth on the ISFSonic  Log, Run No. 1, for
the Orleans Levee Board B-1 Well, dated November 10, 1975, but = less and except
the MIO 10 Sand as found at 9,500  feet to  10,240  feet  measured  depth on the
ISF-Sonic Log, Run No - 1 f or the Orleans Levee Board B-1 Well,  dated November
10, 1975.



Lease--2



That certain oil, gas and mineral  lease granted by the State of Louisiana to W.
T. Burton,  effective January 23, 1936,  recorded in COB 81, Folio 4, designated
State Lease 335, as to all land  covered  thereby  lying in  Townships 17 and 18
South,  Range 15 East LESS AND EXCEPT (1) lands and depths released therefrom on
November 1, 1943, July 30, 1974,  February 5, 1986 and September 7, 1989 and (2)
all land lying  within  the  surface  boundaries  of the Pengo  Petroleum,  Inc.
Voluntary Unit *B" created by instrument dated effective July 1, 1978,  recorded
in COB 482,  Folio 429,  Entry No. 76,  containing  132.846 acres more or less,,
from the surface to the stratigraphic  equivalent of the base of the TEXT W Sand
seen at a depth of 13,500 feet measured  depth on the ISF-Sonic  Log, Run No. 1,
for the Orleans Levee Board B-1 Well,  dated  November 10, 1975,  but = less and
except the Mio 10 Sand as found at 9,500 feet to 10,240 feet  measured  depth on
the  ISF-Sonic  Logo,  Run No. 1 for the  Orleans  Levee  Board B-1 Well,  dated
November 10, 1975.



Exhibit A. Page 2 of 5

That  certain  oil,  gas and mineral  lease dated  effective  November 21, 1941,
granted by the State of  Louisiana  in favor of Humble  oil & Refining  Company,
recorded in COB 105, Folio 392, designated State Lease 508., LESS AND EXCEPT (1)
forty acres surrounding the State Lease 508 No. 13 Well.  described as beginning
at the point X  2,517,580.06  and Y -  307,462.15,  then  South 360 36' 35' East
1,320 feet,  then South 530 23' 25" West 1,320 feet, then North 360 36' 350 West
1,320 feet,  then North 530 23' 250 East 1,320 feet to the point of beginning-as
to all depths from the surface to 100 feet below the stratigraphic equivalent of
the base of the MIO 12F Sand seen at 11,818 feet (log depth) on the electric log
for the Humble State Lease 508 No. 5 Well, (2) forty acres surrounding the State
Lease 508 No. 15/15-D Wells described as beginning at the point X = 2,517,715-00
and Y =  307,443.15,  then North 600 East 1,320 feet,  then South 300 East 1,320
feet,  then South 600 West 1,320  feet,  then North 300 West  1,,320 feet to the
point of  beginning  as to all  depths  from the  surface  to 100 feet below the
stratigraphic  equivalent  of the base of the MIO 12F Sand seen at  11,818  feet
(log  depth)  in the  State  Lease  508 No. 5 Well  and (3) all land and  depths
released therefrom on May 6,, 1971,,  September 9, 1983,  September 5, 1991, and
7uly 30, 1992.



Lease 4

That  certain  oil, gas and mineral  lease  effective  March 11, 1947 granted by
Board of Levee  Commissioners  of the Orleans Levee District to The Superior Oil
Company,  recorded  in COB 130,  Folio 556,  LESS AND EXCEPT (1) land and depths
released on March 18, 1985, (2) the 160 acres of the lease in Sections 3 and 10,
Township 18 South,  Range 15 East  reserved by The Superior Oil Company from the
sublease to Gulf Oil Corporation  and Humble Oil & Refining  Company on December
2,, 1959 (3) land lying within the surface  boundaries  of the Pengo  Petroleum,
Inc. Voluntary Unit "B" created by instrument  effective July 1, 1978,  recorded
in COB 482, Folio 429, Entry No.76, containing 132.846 acres from the surface to
the  stratigraphic  equivalent of the base of the TEXT W Sand seen at a depth of
13,500 feet measured depth on the ISFSonic Log, Run No. 1, for the Orleans Levee
Board B-1 Well,  dated  November 10, 1975, but = less and except the MIO 10 Sand
as found at 9,500 feet to 10,240 feet measured  depth on the ISF-Sonic  Log, Run
No. 1 for the Orleans Levee Board B-1 Well, dated November 10, 1975.







                                     UNIT/WELL SUMMARY SHEET
                                                                                         

                                                                                                            NRI
        Unit/Well Name                        Operator           WI                          OIL       GAS

  OLB #90; MO 9D R9
  VUA (Order 364-D-2)               Statoil Exploration (US) Inc.100.00%         84.5     84.5

  OLB #62                           Statoil Exploration (US) Inc.100.000/0  83.684731     83.684731

  OLB #B-7                          Statoil Exploration (US) Inc.100.00%    84.231446     84.231446

  OLB #B-10                         Statoil Exploration (US) Inc.100.00%    84.379981     84.379981

  OLB #B-1 I                      Statoil Exploration (US) Inc.100.00%       84.23143     84.23143

  OLB #B-1 I RI                   Statoil Exploration (US) Inc.100.00%         2.8639       2.8639

  OLB #68                         Statoil Exploration (US) Inc.100.00%           84.5     84.5

  OLB #73                         Statoil Exploration (US) Inc.100.00%           84.5     84.5

  OLB #92                         Statoil Exploration (US) Inc.100.00%           84.5     84.5

  OLB #93                         Statoil Exploration (US) Inc.100.00%           84.5     84.5

OLB#37                            SWD

OLB #77                           SHUT-IN

OLB #52                           SHUT-IN

SL508 #25 & 25D                   Statoil Exploration (US) Inc.100.00%      78.967262     84.5

SL508 #26 & 26D                   Statoil Exploration (US) Inc.100.00%      78.967262     84.5

SL508 #15/15-D                    Statoil Exploration (US) Inc.100.00%      79.866076     79.866076

SL508 #13 & 14                    SHUT-IN

VU B; Orleans                     Vintage Petroleum, Inc. (1)0.00%          10.059617     10.059617
Levee Board B-3

(1) ORRI

                                                                                 Exhibit A, Page 4 of 5

                                                       UNIT/WELL SUMMARY SHEET

                                                                                                 NRI
      Unit[Well Name                       Operator                     WI              OIL                 GAS

BOL 5 RM SUA                    Statoil Exploration (US) Inc.          100.00%

OLB 490; MIO 9D R9
VUA (Order 364-D-2)             Statoil Exploration (US) Inc.          100.00%         84.5,.             84.5

- -OLB #73                        Statoil Exploration (US) Inc.          100.00%         84.5               84.5

OLB #62                         Statoil Exploration (US) Inc.          100.00%         83.684731          83.684731

OLB #B-7                        Statoil Exploration (US) Inc.          100.00%         84.231446          84.231446

  OLB #B- IO                    Statoil Exploration (US) Inc.          100.00%         84-379981.         84.379981

  OLB #B-1 I                    Statoil Exploration (US) Inc.          100.00%         84.23143           84.23143

  OLS #B-1 I RI                 Statoil Exploration (US) Inc.          100.00%          0.028639            0.028639

  OLB #68                       Statoil Exploration (US) Inc.          100.00%         84.5               84.5


  OLB #92                       Statoil Exploration (US) Inc.           100.00%         84.5              84.5

  OLB #93                       Statoil Exploration (US) Inc.           100.00%         84.5                84.5

  SL508 #25 & 25D                 Statoil Exploration (US) Inc.         100.00%         78.967262           84.5

  SL508 #26 & 26D-                Statoil Exploration (US) Inc.         100.00%         78.967262           84.5

  SL508 #I 5115-D                 Statoil Exploration (US) Inc.         100.00%         79.866076           79.866076
                                                                              1
  VU B; Orleans                   Vintage Petroleum, Inc.                0.00%
  Levee Board B-3








Exhibit A, Page 5 of 5