ABRAXAS PETROLEUM CORP
S-4/A, 1997-01-24
CRUDE PETROLEUM & NATURAL GAS
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As filed with the Securities and Exchange Commission on January 23, 1997


                                                      Registration No. 333-18673
    

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

   
                               AMENDMENT NO. 1 TO
    

                                    FORM S-4
                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933

                          ABRAXAS PETROLEUM CORPORATION
                       CANADIAN ABRAXAS PETROLEUM LIMITED
             (Exact name of registrant as specified in the charter)

Nevada                         1331                          74-2584033
Canada                         1331                          N/A
(State or other jurisdiction   (Primary Standard Industrial  (I.R.S. Employer
of incorporation or            Classification Code Number)   Identification 
organization)                                                Number)

                                                     Robert L. G. Watson
       500 North Loop 1604 East                500 North Loop 1604 East
               Suite 100                               Suite 100
       San Antonio, Texas 78232                San Antonio, Texas 78232
            (210) 490-4788                          (210) 490-4788
   (Address, including zip code, and (Address, including zip code, and telephone
number, including area code, telephone number, including area code,
  of registrant's principal executive            of agent for service)
               offices)

                                   Copies to:

                            Cox & Smith Incorporated
                         112 E. Pecan Street, Suite 1800
                            San Antonio, Texas 78205
                                 (210) 554-5500
                           Attention: Steven R. Jacobs

      APPROXIMATE  DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  As soon
as practicable after this Registration Statement becomes effective.

      If the  securities  being  registered  on this Form are being  offered  in
connection  with the formation of a holding company and there is compliance with
General Instruction G, check the following box.

       THE REGISTRANTS HEREBY AMEND THIS REGISTRATION  STATEMENT ON SUCH DATE OR
DATES AS MAY BE  NECESSARY  TO DELAY ITS  EFFECTIVE  DATE UNTIL THE  REGISTRANTS
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY  STATES THAT THIS REGISTRATION
STATEMENT SHALL  THEREAFTER  BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE  SECURITIES  ACT OF 1933 OR UNTIL THE  REGISTRATION  STATEMENT  SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION,  ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.


<PAGE>



                              CROSS REFERENCE SHEET
                    PURSUANT TO ITEM 501(B) OF REGULATION S-K
                 SHOWING LOCATION IN PROSPECTUS OF INFORMATION
                     REQUIRED BY ITEMS OF PART I OF FORM S-4

           REGISTRATION STATEMENT ITEM OF FORM S-4        CAPTION OR LOCATION

1.     Forepart of Registration Statement and Outside  Outside Front Cover
       Front Cover Page of Prospectus

2.     Inside  Front and  Outside  Back Cover Pages    Inside   Front;   Outside
       of Prospectus                                   Back     Cover      Page;
                                                       Available    Information;
                                                       Enforceability  of  Civil
                                                       Liabilities       Against
                                                       Foreign Persons

3.     Risk Factors, Ratio of Earnings to Fixed        Summary; Risk Factors;
       Charges and Other Information                   Selected Consolidated
                                                       Financial Data; Pro
                                                       Forma Financial
                                                       Information

4.     Terms of the Transaction                        Outside    Front    Cover
                                                       Page;    Summary;     The
                                                       Exchange           Offer;
                                                       Description     of    the
                                                       Notes;   Description   of
                                                       Capital  Stock;   Certain
                                                       United     States     and
                                                       Canadian    Income    Tax
                                                       Considerations

5.     Pro Forma Financial Information                 Pro    Forma    Financial
                                                       Information

6.     Material   Contacts   with  the  Company        Inapplicable
       Being Acquired

7.     Additional Information Required for             Inapplicable
       Reofferingby Persons and Parties Deemed
       to Be Underwriters

8.     Interests of Named Experts and Counsel          Legal Matters; Experts

9.     Disclosure of Commission Position on            Inapplicable
       Indemnification for Securities Act Liabilities

10.    Information with Respect to S-3 Registrants     Inapplicable

11.    Incorporation of Certain Information by         Inapplicable
       Reference

12.    Information with Respect to S-2 or S-3          Inapplicable
       Registrants

13.    Incorporation of Certain Information by         Inapplicable
       Reference

14.    Information with Respect to Registrants Other   Business; Consolidated
       than S-3 or S-2 Registrants                     Financial Statements;
                                                       Selected Consolidated
                                                       Financial Data; Pro
                                                       Forma Financial
                                                       Information;
                                                       Management's Discussion
                                                       and Analysis of
                                                       Financial Condition and
                                                       Results of Operation
                                       i
<PAGE>

15.    Information with Respect to S-3 Companies       Inapplicable

16.    Information with Respect to S-2 or S-3          Inapplicable
       Companies

17.    Information with Respect to Companies Other     Inapplicable
       than S-2 or S-3 Companies

18.    Information if Proxies, Consents or             Inapplicable
       Authorizations are to be Solicited

19.    Information if Proxies, Consents or             Management; Executive
       Authorizations are not to be Solicited or in    Compensation; Securities
       an Exchange Offer                               Holdings of Principal
                                                       Stockholders, Directors
                                                       and Officers;
                                                       Transactions with
                                                       Related Parties

                                       ii
<PAGE>


                                                     
   
                  SUBJECT TO COMPLETION, DATED JANUARY 23, 1997
    

PROSPECTUS
                          ABRAXAS PETROLEUM CORPORATION
                       CANADIAN ABRAXAS PETROLEUM LIMITED
             OFFER TO EXCHANGE 11.5% SENIOR NOTES DUE 2004, SERIES B
                    FOR ANY AND ALL OUTSTANDING 11.5% SENIOR
                            NOTES DUE 2004, SERIES A

   
                    THE           EXCHANGE  OFFER WILL EXPIRE AT 5:00 P.M.,  NEW
                                  YORK CITY  TIME,  ON  ________________,  1997,
                                  UNLESS EXTENDED.
    

      Abraxas  Petroleum  Corporation,  a Nevada  corporation  ("Abraxas"),  and
Canadian Abraxas Petroleum  Limited, a Canada  corporation  ("Canadian  Abraxas"
and, together with Abraxas, the "Issuers"), hereby offer (the "Exchange Offer"),
upon the terms and conditions set forth in this  Prospectus  (the  "Prospectus")
and the  accompanying  Letter of Transmittal (the "Letter of  Transmittal"),  to
exchange $1,000 principal amount of their 11.5% Senior Notes due 2004,  Series B
(the "Exchange  Notes"),  which have been registered under the Securities Act of
1933, as amended (the "Securities Act"), pursuant to a Registration Statement of
which this  Prospectus  is a part,  for each  $1,000  principal  amount of their
outstanding  11.5%  Senior Notes due 2004,  Series A (the "Series A Notes"),  of
which  $215,000,000  principal amount is outstanding.  The form and terms of the
Exchange  Notes are the same as the form and terms of the Series A Notes  (which
they  replace)  except  that  (i)  the  Exchange  Notes  will  bear a  Series  B
designation,  (ii) the  Exchange  Notes  will  have  been  registered  under the
Securities Act and, therefore,  will not bear legends restricting their transfer
and will not be subject to certain  provisions  relating  to an  increase in the
interest  rate  which  were   applicable  to  the  Series  A  Notes  in  certain
circumstances  relating to the timing of the Exchange Offer and (iii) holders of
the  Exchange  Notes will not be  entitled  to certain  rights of holders of the
Series A Notes under the  Registration  Rights  Agreement  (as defined  herein),
which  rights will  terminate  upon  consummation  of the  Exchange  Offer.  The
Exchange  Notes will  evidence  the same debt as the Series A Notes  (which they
replace)  and will be  issued  under  and be  entitled  to the  benefits  of the
Indenture  dated November 14, 1996 (the  "Indenture")  among the Issuers and IBJ
Schroder  Bank & Trust  Company  governing the Series A Notes and the Exchange B
Notes.  As used herein,  the term "Notes"  refers to both the Series A Notes and
the Exchange Notes. See "The Exchange Offer" and "Description of the Notes."

      Interest on the Exchange Notes will be payable semi-annually in arrears on
May 1 and  November 1 of each year,  commencing  on May 1, 1997,  at the rate of
11.5% per annum.  Interest will accrue from the date of issuance of the Series A
Notes (November 14, 1996). The Exchange Notes will be redeemable, in whole or in
part,  at the  option of the  Issuers,  on or after  November  1,  2000,  at the
redemption prices set forth herein, plus accrued and unpaid interest to the date
of  redemption.  In addition,  at any time on or prior to November 1, 1999,  the
Issuers may, at their option, redeem up to 35% of the aggregate principal amount
of the Notes originally  issued with the net cash proceeds of one or more Equity
Offerings  (as defined  herein),  at a  redemption  price equal to 111.5% of the
aggregate  principal  amount of the Exchange Notes to be redeemed,  plus accrued
and unpaid interest to the date of redemption;  provided,  however,  that, after
giving  effect  to any such  redemption,  at  least  $139.75  million  aggregate
principal amount of Notes remains outstanding.

      The Exchange  Notes will be general  unsecured  obligations of the Issuers
and will  rank  pari  passu  in right of  payment  to all  existing  and  future
unsubordinated  indebtedness of the Issuers. The Exchange Notes will rank senior
in right of payment to all future subordinated  indebtedness of the Issuers. The
Exchange  Notes  will,   however,   be  effectively   subordinated   to  secured
indebtedness  of the  Issuers to the extent of the value of the assets  securing
such indebtedness. See "Description of the Notes."

      The  Exchange  Notes  will  be  unconditionally  guaranteed,  jointly  and
severally,  by certain of the  Issuers'  future  subsidiaries  (the  "Subsidiary
Guarantors").  The  Guarantees  (as defined  herein)  will be general  unsecured
obligations  of the  Subsidiary  Guarantors and will rank pari passu in right of
payment to all  unsubordinated  indebtedness  of the  Subsidiary  Guarantors and
senior in right of payment to all  subordinated  indebtedness  of the Subsidiary
Guarantors.   The  Guarantees  will  be  effectively   subordinated  to  secured
indebtedness  of the  Subsidiary  Guarantors  to the  extent of the value of the
assets  securing  such  indebtedness.  See  "Description  of  the  Notes."  Upon
consummation  of the Offering,  the Issuers and the Subsidiary  Guarantors  will
have no secured indebtedness outstanding.

      Abraxas has entered  into a credit  facility  (the "New Credit  Facility")
with Bankers Trust Company  ("BTCo") and ING (U.S.)  Capital  Corporation  ("ING
Capital")  which is secured  by certain  assets of  Abraxas  and  guaranteed  by
Canadian Abraxas.  The New Credit Facility has an initial  availability of $20.0
million.  As of December 20, 1996, there were no borrowings under the New Credit
Facility outstanding.

      Upon a Change of Control  (as  defined  herein),  each holder of the Notes
will have the right to require  the  Issuers to  repurchase  all or a portion of
such holder's Notes at a redemption  price equal to 101% of the principal amount
thereof,  plus  accrued  and  unpaid  interest  to the  date of  repurchase.  In
addition, the Issuers will be obligated to offer to repurchase the Notes at 100%
of the principal  amount thereof plus accrued and unpaid interest to the date of
repurchase in the event of certain asset sales. See "Description of the Notes."

   
      The Issuers will accept for  exchange  any and all Series A Notes  validly
tendered  and  not  withdrawn  prior  to 5:00  p.m.,  New  York  City  time,  on
__________,  1997,  unless extended by the Issuers in their sole discretion (the
"Expiration  Date").  Tenders of the Series A Notes may be withdrawn at any time
prior to 5:00 p.m. on the  Expiration  Date.  The  Exchange  Offer is subject to
certain  customary  conditions.  The Series A Notes were sold by the  Issuers on
November  14,  1996 to the  Initial  Purchasers  (as  defined  herein)  and were
thereupon  sold by the Initial  Purchasers  in reliance upon Rule 144A under the
Securities  Act,  to a limited  number of  qualified  institutional  buyers that
agreed  to comply  with  certain  transfer  restrictions  and other  conditions.
Accordingly,  the  Series  A  Notes  may not be  offered,  resold  or  otherwise
transferred in the United States unless  registered  under the Securities Act or
unless  an  applicable  exemption  from  the  registration  requirements  of the
Securities Act is available.  The Exchange Notes are being offered  hereunder in
order to satisfy the  obligations of the Issuers under the  Registration  Rights
Agreement  entered into by the Issuers and the Initial  Purchasers in connection
with the offering of the Series A Notes. See "The Exchange Offer."
    

      Based on an  interpretation  by the staff of the  Securities  and Exchange
Commission  (the  "Commission")  set forth in no-action  letters issued to third
parties,  the Issuers  believe  that the Exchange  Notes issued  pursuant to the
Exchange  Offer may be offered for resale,  resold and otherwise  transferred by
any holder  thereof (other than any such holder that is an "affiliate" of either
of the  Issuers  within the  meaning of Rule 405 under the  Securities  Act or a
broker-dealer  who  purchased  the Series A Notes  directly from the Issuers for
resale  pursuant  to Rule 144A or another  exemption  from the  Securities  Act)
without compliance with the registration and prospectus  delivery  provisions of
the  Securities  Act,  provided  that such  Exchange  Notes are  acquired in the
ordinary course of such holder's  business and such holder has no arrangement or
understanding  with  any  person  to  participate  in the  distribution  of such
Exchange Notes. See "Purpose of the Exchange Offer" and " Resale of the Exchange
Notes." Each  broker-dealer that receives the Exchange Notes for its own account
pursuant  to  the  Exchange  Offer  (a   "Participating   Broker-Dealer")   must
acknowledge  that it will deliver a prospectus in connection  with any resale of
such Exchange Notes.  The Letter of Transmittal  states that by so acknowledging
and by delivering a prospectus, a participating Broker-Dealer will not be deemed
to admit that it is an  "underwriter"  within the meaning of the Securities Act.
This Prospectus,  as it may be amended or supplemented from time to time, may be
used by a Participating Broker-Dealer in connection with resales of the Exchange
Notes received in exchange for the Series A Notes where such Series A Notes were
acquired  by such  Participating  Broker-Dealer  as a  result  of  market-making
activities or other trading  activities.  The Issuers agreed that they will make
this  Prospectus  available  to  any  Participating  Broker-Dealer  for  use  in
connection  with any such resale  during the period  required by the  Securities
Act. See "Plan of Distribution."

      There has not previously  been any public market for the Series A Notes or
the Exchange Notes.  The Issuers do not intend to list the Exchange Notes on any
securities  exchange or to seek  approval for  quotation  through any  automated
quotation  system.  There  can be no  assurance  that an active  market  for the
Exchange  Notes  will  develop.  See "Risk  Factors  -- Lack of Public  Market."
Moreover, to the extent that the Series A Notes are tendered and accepted in the
Exchange  Offer,  the trading  market for untendered and tendered but unaccepted
Series A Notes could be adversely affected.

      The Exchange Notes will be available  initially  only in book-entry  form.
The Issuers expect that the Exchange Notes issued pursuant to the Exchange Offer
will be issued in the form of a Global  Certificate (as defined  herein),  which
will be  deposited  with,  or on behalf of, The  Depository  Trust  Company (the
"Depositary"  or "DTC") and registered in its name or in the name of Cede & Co.,
its nominee.  Beneficial  interests in the Global  Certificate  representing the
Exchange   Notes  will  be  shown  on,  and   transfers   thereof  to  qualified
institutional  buyers  will  be  affected  through,  records  maintained  by the
Depositary  and its  participants.  After the  initial  issuance  of the  Global
Certificate, the Exchange Notes in certified form will be issued in exchange for
the  Global  Certificate  only on the  terms  set  forth in the  Indenture.  See
"Book-Entry; Delivery and Form."

      Holders of the Series A Notes not  tendered  and  accepted in the Exchange
Offer will  continue  to hold such Series A Notes and will be entitled to all of
the  rights and  benefits  and will be  subject  to the  limitations  applicable
thereto under the Indenture  and with respect to transfer  under the  Securities
Act. The Issuers will not receive any proceeds from the Exchange Offer. Pursuant
to the  Registration  Rights  Agreement,  the Issuers  will pay all the expenses
incurred by them incident to the Exchange Offer. See "The Exchange Offer."

   
     SEE  "RISK  FACTORS"  ON P. 19 FOR A  DESCRIPTION  OF  CERTAIN  RISKS TO BE
CONSIDERED BY HOLDERS WHO TENDER THEIR SERIES A NOTES IN THE EXCHANGE OFFER.
    

      THESE  SECURITIES  HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
AND  EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS  THE
COMMISSION  OR ANY STATE  SECURITIES  COMMISSION  PASSED  UPON THE  ACCURACY  OR
ADEQUACY OF THIS PROSPECTUS.  ANY  REPRESENTATION  TO THE CONTRARY IS A CRIMINAL
OFFENSE.

   
      The date of this Prospectus is ______________, 1997.
    

      INFORMATION  CONTAINED  HEREIN IS SUBJECT TO COMPLETION  OR  AMENDMENT.  A
REGISTRATION  STATEMENT  RELATING  TO THESE  SECURITIES  HAS BEEN FILED WITH THE
SECURITIES  AND EXCHANGE  COMMISSION.  THESE  SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION  STATEMENT  BECOMES
EFFECTIVE.  THIS  PROSPECTUS  SHALL  NOT  CONSTITUTE  AN  OFFER  TO  SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN ANY STATE IN WHICH SUCH OFFER,  SOLICITATION  OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.



<PAGE>


                DISCLOSURE REGARDING FORWARD-LOOKING INFORMATION

      This Prospectus includes  "forward-looking  statements" within the meaning
of Section 27A of the  Securities  Act and Section 21E of the Exchange  Act. All
statements   other  than  statements  of  historical   facts  included  in  this
Prospectus,   including,   without  limitation,  those  regarding  the  Issuers'
financial position, business strategy,  budgets, reserve estimates,  development
and exploitation opportunities and projects,  behind-pipe zones,  classification
of reserves,  projected  costs,  potential  reserves and plans and objectives of
management for future operations, are forward-looking  statements.  Although the
Issuers  believe  that  the  expectations   reflected  in  such  forward-looking
statements are  reasonable,  they can give no assurance  that such  expectations
will prove to have been  correct.  Important  factors  that could  cause  actual
results  to  differ  materially  from  the  Issuers'  expectations  ("Cautionary
Statements") are disclosed under "Risk Factors" and elsewhere in this Prospectus
including,   without   limitation,   in  conjunction  with  the  forward-looking
statements  included  in  this  Prospectus.  All  subsequent  written  and  oral
forward-looking  statements  attributable  to either of the Issuers,  or persons
acting on behalf of either of them, are expressly qualified in their entirety by
the Cautionary Statements.

                              CURRENCY TRANSLATION

      Certain  information  contained  in this  Prospectus  relating to CGGS (as
defined  herein)  and  Cascade (as  defined  herein)  has been  translated  from
Canadian  dollars into U.S.  dollars.  The  statements of  operations  and other
similar  information  relating to CGGS have been translated into U.S. dollars at
the average exchange rates of $0.7321 and $0.7273 to one Canadian dollar for the
nine months ended September 30, 1996 and the fiscal year ended October 31, 1995,
respectively. The balance sheet of Canadian Abraxas as of September 30, 1996 has
been  translated  at the  period-end  exchange  rate of $0.7458 to one  Canadian
dollar.  In addition,  the financial  statements  of Canadian  Abraxas have been
converted  from  Canadian  generally  accepted  accounting  principles to United
States generally accepted accounting principles.

                        NOTICE TO NEW HAMPSHIRE RESIDENTS

      NEITHER THE FACT THAT A  REGISTRATION  STATEMENT OR AN  APPLICATION  FOR A
LICENSE HAS BEEN FILED UNDER THIS  CHAPTER WITH THE STATE OF NEW  HAMPSHIRE  NOR
THE FACT THAT A SECURITY IS  EFFECTIVELY  REGISTERED  OR A PERSON IS LICENSED IN
THE STATE OF NEW HAMPSHIRE  CONSTITUTES A FINDING BY THE SECRETARY OF STATE THAT
ANY DOCUMENT FILED UNDER RSA 421-B IS TRUE, COMPLETE AND NOT MISLEADING. NEITHER
ANY SUCH FACT NOR THE FACT THAT AN EXEMPTION  OR  EXCEPTION  IS AVAILABLE  FOR A
SECURITY OR A  TRANSACTION  MEANS THAT THE  SECRETARY OF STATE HAS PASSED IN ANY
WAY UPON THE MERITS OR  QUALIFICATIONS  OF, OR RECOMMENDED OR GIVEN APPROVAL TO,
ANY PERSON,  SECURITY,  OR  TRANSACTION.  IT IS UNLAWFUL TO MAKE, OR CAUSE TO BE
MADE,  TO ANY  PROSPECTIVE  PURCHASER,  CUSTOMER,  OR CLIENT ANY  REPRESENTATION
INCONSISTENT WITH THE PROVISIONS OF THIS PARAGRAPH.

                           NOTICE TO FLORIDA RESIDENTS

      PURSUANT TO SECTION  517.011(1)(a)(5)  OF THE FLORIDA  SECURITIES ACT, YOU
HAVE THE RIGHT TO RESCIND  YOUR  SUBSCRIPTION  (UNLESS YOU ARE AN  INSTITUTIONAL
INVESTOR  DESCRIBED  IN SECTION  517.061(7)  OF THE FLORIDA  SECURITIES  ACT) BY
GIVING NOTICE OF SUCH RESCISSION BY TELEPHONE, TELEGRAPH OR LETTER, WITHIN THREE
DAYS AFTER YOU FIRST TENDER CONSIDERATION,  TO THE INITIAL PURCHASERS. IF NOTICE
IS NOT RECEIVED BY SUCH TIME,  THE FOREGOING  RIGHT OF RESCISSION  SHALL BE NULL
AND VOID.



<PAGE>


                                     SUMMARY

   
      The  following  summary is qualified in its entirety by the more  detailed
information  and financial  statements,  including the notes thereto,  appearing
elsewhere in this  Prospectus.  As used in this  Prospectus,  the term "Abraxas"
refers to Abraxas Petroleum  Corporation,  the term "Canadian Abraxas" refers to
Canadian Abraxas  Petroleum Limited and the term "Company" refers to Abraxas and
all of its  subsidiaries,  including  Canadian  Abraxas,  for the relevant  time
periods.  The term "CGGS"  refers to CGGS  Canadian Gas  Gathering  Systems Inc.
after giving  effect to the sale by CGGS of the Nevis Gas  Processing  Plant and
related  assets  (the  "Nevis  Plant") to a third  party.  References  herein to
"Fiscal  1995" with respect to CGGS shall mean CGGS'  fiscal year ended  October
31, 1995, references to the nine months ended September 30, 1996 with respect to
CGGS means the nine months ended October 31, 1996 and  references to the balance
sheet as of September 30, 1996 means the CGGS balance sheet at October 31, 1996.
Except as  otherwise  noted,  the  reserve  data for  Abraxas  reported  in this
Prospectus are based on the reserve estimates of Abraxas' independent  petroleum
engineers and the reserve data for CGGS reported in this Prospectus are based on
reserve estimates of CGGS' independent petroleum engineers.  Except as otherwise
indicated  herein,  each  reference  herein to "on a pro forma basis" shall mean
that the results for the stated period or other  information  have been adjusted
to reflect  the  consummation  of the  Transactions  (as  defined  herein).  See
"Glossary of Terms" for definitions of certain terms used in this Prospectus.
    

                                   The Company

      The Company is an  independent  energy  company  engaged  primarily in the
acquisition,  exploration,  development  and production of crude oil and natural
gas.  Since January 1, 1991,  the Company's  principal  means of growth has been
through the acquisition and subsequent development and exploitation of producing
properties and related assets.  The Company  utilizes a disciplined  acquisition
strategy,  focusing  its efforts on  producing  properties  and  related  assets
possessing  the  following  characteristics:   a  concentration  of  operations;
significant,  quantifiable  development  potential;  historically  low operating
expenses; and the potential to reduce G&A expenses per BOE. The Company seeks to
complement   its   acquisition   and   development   activities  by  selectively
participating in exploration projects with experienced industry partners.  After
giving  effect to the Recent  Acquisitions,  the  Company's  principal  areas of
operation are Texas,  western Canada and southwestern  Wyoming. The Company owns
interests in 225,290 gross acres  (126,845 net acres) and 507 gross wells (325.8
net wells),  352 of which are operated by the Company,  and varying interests in
13 natural  gas  processing  plants or  compression  facilities.  On a pro forma
basis,  at June 30, 1996,  the Company  would have had total proved  reserves of
45,647  MBOE  (64.9%  natural  gas),  of which  81.7%  would  have  been  proved
developed.  On a pro forma basis,  for the nine months ended September 30, 1996,
the Company's EBITDA would have been $28.4 million.

      The  Company's  acquisition,  development,  exploitation  and  exploration
activities  have  substantially  increased  the Company's  proved  reserve base,
average daily  production  and natural gas  processing  plant  throughput  while
decreasing its total  operating and G&A expenses per BOE. After  consummation of
the Recent Acquisitions,  the Company has completed 16 acquisitions of producing
properties totaling 46,009 MBOE of proved reserves at an average net acquisition
cost of $3.83 per BOE since  January  1,  1991.  From  January  1,  1991,  on an
historical  basis,  to June 30, 1996, on a pro forma basis,  the Company's total
proved  reserves would have increased from 889 MBOE to 45,647 MBOE and aggregate
PV-10 would have increased from $11.9 million to $218.3 million. From January 1,
1991, on an historical  basis, to the nine months ended September 30, 1996, on a
pro forma basis,  average net daily  production  would have increased from 0.141
MBOE per day to _14.1 MBOE per day. On a pro forma basis, the Company would have
had net natural gas  processing  capacity of 128.1 MMcf per day as of  September
30, 1996. In addition, on a pro forma basis, for the nine months ended September
30, 1996,  average net daily natural gas processing  plant throughput would have
been 87.4 MMcf per day, of which 27.3 MMcf would have been  processed  for third
parties,  and net operating revenue from processing natural gas of third parties
at the Canadian Abraxas Plants (as defined herein) would have been $1.9 million.
From the year ended  December  31, 1991,  on an  historical  basis,  to the nine
months ended  September  30, 1996, on a pro forma basis,  the  Company's  direct
operating  expenses per BOE would have decreased from $6.30 per BOE to $2.81 per
BOE and G&A  expenses per BOE would have  decreased  from $5.39 per BOE to $0.66
per BOE. As a result of the Company's  successful  acquisition  strategy and its
ability to decrease its direct operating and G&A expenses per BOE, the Company's
EBITDA  (excluding  interest  income) has increased  from $6.66 per BOE, for the
year ended December 31, 1991,  to, on a pro forma basis,  $7.24 per BOE, for the
nine months ended September 30, 1996.

      The  Company  was founded in 1977 by Robert  L.G.  Watson,  the  Company's
Chairman of the Board,  President and Chief Executive Officer.  Canadian Abraxas
was formed by the  Company  in 1996 to acquire  CGGS.  The  Company's  principal
offices are located at 500 North Loop 1604 East,  Suite 100, San Antonio,  Texas
78232 and its telephone number is (210) 490-4788.  Canadian  Abraxas'  principal
offices are located at 630 - 6th Avenue,  S.W., Suite 303, Calgary,  Alberta and
its telephone number is (403) 262-1949.

                                Business Strategy

      The Company's primary business objectives are to: increase its recoverable
reserves,   production  and  cash  flow  from   operations   through   strategic
acquisitions;  exploit and develop its producing  properties;  maintain low cost
operations;  and pursue a focused  exploration  strategy.  The Company  seeks to
achieve its business objectives through the use of the following strategies:

o  Disciplined   Acquisition  Strategy.   The  Company  utilizes  a  disciplined
acquisition  strategy,  focusing its acquisition efforts on producing properties
and related assets possessing the following characteristics:  a concentration of
operations;  significant,  quantifiable development potential;  historically low
operating  expenses;  and the  potential  to reduce G&A  expenses  per BOE.  The
success of the Company's  acquisition  strategy is  illustrated by the following
table:
<TABLE>
<CAPTION>

                                                            
Property             Purchase  Purchase  Cummulative  Cummulative    June 30,    
- --------              Date     Price(1)    CapEx(2)  Cash Flow (3)  1996 PV-10   IRR (4)
                     -------   --------- ----------- -------------  ----------   -------
                                   (dollars in millions)
<S>                   <C>      <C>       <C>          <C>            <C>         <C>

Delaware            
Properties(5)          7/1/94  $  25.0   $   6.8      $  6.0          $ 37.6      19.3%
Sinton  Properties(6)  1/1/93     19.6      13.4        12.1(7)         43.0      21.4%
Sharon Ridge/
Westbrook              9/1/92      4.4       0.4         2.0             5.2      13.1%
Spraberry              7/1/94      3.2       3.0         0.9             7.1      18.5%
Happy                 8/12/92      2.2       0.1         2.6(7)          2.0      31.0%
- ----------------
</TABLE>

(1) Purchase  price is net of accrual of net revenue from the effective  date of
acquisition to purchase date.
(2) Consists of capital expenditures on a cumulative basis from date of purchase
through June 30, 1996 (undiscounted).
(3)  Consists of operating  revenue less LOE on a cumulative  basis from date of
purchase through June 30, 1996 (undiscounted).
(4) Internal rate of return  ("IRR") was  calculated  assuming that the purchase
price for each  property was paid on the purchase  date and that the  cumulative
capital  expenditures and cumulative cash flow occurred in equal monthly amounts
over the time  periods  presented.
(5) Consist of the  Company's  interests  in
Cherry Canyon and the Delaware Area (each as defined herein).
(6) Consist of the Company's interests in Portilla, East White Point and Stedman
Island (each as defined  herein).  Does not include the 50%  overriding  royalty
interest in Portilla,  East White Point and Stedman Island  previously  owned by
the Pension Fund (as defined herein).
(7) Does not  include  results of  operations  of the  Partnership  (as  defined
herein) from March 21, 1996 to June 30, 1996 or proceeds  from the Acco Sale (as
defined herein).

      In connection with the acquisition of the Sinton  Properties,  the Company
also acquired  interests in two natural gas processing  plants, one of which was
subsequently sold in the Acco Sale. See "-- Recent  Acquisitions -- Portilla and
Happy." Since being  acquired by the Company,  the average net daily natural gas
processing  throughput  of these plants has  increased by an average of 7.3% per
year,  revenue  has  increased  by an  average  of 24.5% per year and  operating
expenses as a percentage  of revenue  have  decreased by an average of 13.7% per
year.

   
o  Exploitation  Of Existing  Properties.  The Company  allocates a  significant
amount  of  its  non-acquisition  capital  budget  to  the  exploitation  of its
producing properties.  As of June 30, 1996, on a pro forma basis,  approximately
18.3%  (8,373  MBOE) of the  Company's  total  proved  reserves  would have been
classified  as proved  undeveloped.  Management  believes  that the proximity of
these  undeveloped  reserves to existing  production makes  development of these
properties less risky and more cost-effective than other drilling  opportunities
available to the Company. The Company has identified 276 potential  exploitation
opportunities on the Company's existing  properties  including those acquired in
the Recent  Acquisitions.  The Company  drilled 38 wells during 1996  (including
seven in western Canada) at a total cost of $13.2 million with a success rate of
90%. In addition,  the Company  performed 42 workovers or  recompletions  during
1996 at an  estimated  cost of $3.3  million  and  plans to drill  113 wells and
perform 48 workovers or recompletions  during 1997 at an estimated cost of $33.3
million.
    

o Low Cost  Operations.  The Company  seeks to maintain  low  operating  and G&A
expenses per BOE by operating a majority of its producing properties and related
assets  and by using  contract  personnel  to  assist  with the  development  or
evaluation  of  producing  properties  and related  assets.  As a result of this
strategy, the Company's EBITDA Margin has consistently improved since 1991, even
in years with depressed  commodity prices. From the year ended December 31, 1991
to,  on a pro forma  basis,  the nine  months  ended  September  30,  1996,  the
Company's  direct operating and G&A expenses per BOE have decreased by 55.4% and
87.8%, respectively, resulting in an improvement in EBITDA Margin as illustrated
below:

<TABLE>
<CAPTION>
                                                                                      Nine Months Ended
                                     Year Ended December 31,                            September 30,
                           ------------------------------------------------------    ------------------
                                                                              Pro               Pro
                                                                             Forma             Forma
 (per BOE) (1)                 1991      1992     1993      1994     1995     1995      1996     1996
                           ----------- -------- --------  -------- --------  -------  --------- --------
   
<S>                    <C>   <C>        <C>      <C>      <C>      <C>      <C>       <C>      <C>       
Total operating revenue(2)   $ 18.35    $ 16.03  $ 15.98  $ 13.08  $ 12.15  $ 8.61(5) $ 14.08  $ 10.71(5)

Direct operating
operating expenses (3)          6.30       6.23     6.39     4.41     3.92    2.5(5)     4.21     2.81(5)
    
G&A                             5.39       4.59     1.09     0.93     0.92    0.49       1.54     0.66
                           ----------- -------- --------  -------- --------  -------  --------- --------
   
EBITDA (4)                  $   6.66    $  5.21  $  8.50  $  7.74  $  7.31  $ 5.62(5) $  8.33  $  7.24(5)
EBITDA Margin                  36.3%      32.5%    53.2%    59.2%    60.2%   65.3%(5)   59.2%    67.6%(5)
    
</TABLE>
- --------------------
   

(1)  Amounts  are  calculated  on the basis of  dollars  per BOE of  production.
Production data does not include third-party natural gas processing volumes.
(2)  Consists of crude oil and natural gas  production  sales,  revenue from rig
operations  and  processing  of  natural  gas of third  parties as well as other
miscellaneous revenue. Both historical and pro forma total operating revenue for
the nine  months  ended  September  30,  1996 are  presented  net of a loss from
hedging activities incurred during such period.
(3) Consists of lease operating expenses,  production taxes, abandoned projects,
rig operating expenses and processing expenses.
(4) Does not include interest income.
(5) Includes results from the Hoole Area. See "--Recent Acquisitions - CGGS."
    

o Focused Exploration  Activity.  The Company allocates a portion of its capital
budget to the drilling of exploratory  wells which have high reserve  potential.
The Company  believes  that by devoting a relatively  small amount of capital to
high impact,  high risk projects  while  reserving the majority of its available
capital for  development  projects,  it can reduce its risk profile  while still
benefiting from the potential for significant  reserve additions.  See "Business
- -- Primary Operating Areas -- Exploration Opportunities."

                               Recent Acquisitions

      The Company has recently acquired CGGS, the Wyoming  Properties,  Portilla
and Happy,  East White Point and Stedman Island for an aggregate  purchase price
of  approximately  $176.2  million  (the  "Recent  Acquisitions").  The  Company
believes that each of the Recent  Acquisitions  is consistent with the Company's
acquisition strategy.

CGGS

      In  November  1996,  Canadian  Abraxas  acquired  100% of the  outstanding
capital stock of CGGS,  after the  consummation  of the sale of the Nevis Plant,
for  CDN$126.4   million,   or  approximately   U.S.$94.8   million,   including
approximately $8.3 million for CGGS' working capital.

   
      Canadian  Abraxas owns producing  properties in western Canada  consisting
primarily  of natural gas  reserves  (the  "Canadian  Abraxas  Properties")  and
interests ranging from 10% to 100% in 197 miles of natural gas gathering systems
and 11 natural gas processing  plants or compression  facilities  (the "Canadian
Abraxas Plants"),  four of which are operated by Canadian Abraxas.  The Canadian
Abraxas  Properties  consist of 154,968  gross acres  (86,327 net acres) and 120
gross wells (68.8 net wells), 48 of which are operated by Canadian  Abraxas.  As
of September 1, 1996, the Canadian Abraxas  Properties had total proved reserves
of 10,821 MBOE (91.8%  natural  gas) with an aggregate  PV-10 of $46.4  million,
86.3% of which was  attributable  to proved  developed  reserves.  The  Canadian
Abraxas  Plants had aggregate net natural gas  processing  capacity of 98.3 MMcf
per day at September 1, 1996. For the nine months ended  September 30, 1996, the
Canadian Abraxas Plants processed an average of 182.8 gross MMcf (65.7 net MMcf)
of natural  gas per day, of which 19.6%  (39.7%  net) was custom  processed  for
third  parties.  For the nine months  ended  September  30,  1996,  the Canadian
Abraxas  Properties and the Canadian Abraxas Plants would have contributed $10.3
million of EBITDA to the Company on a pro forma basis.

      In January 1997,  Canadian Abraxas entered into a letter of intent to sell
its interest in the Hoole Area for  approximately  $9.3 million.  The Hoole Area
consists  of 9,728  gross  acres  (3,311 net acres) and 6.4 gross wells (3.2 net
wells), none of which are operated by Canadian Abraxas. As of September 1, 1996,
the Hoole Area natural gas properties had total proved  reserves of 1,477.0 MBOE
with an aggregate  PV-10 of $6.3  million,  89.3% of which was  attributable  to
proved  developed  reserves.  The Hoole Area  natural gas  processing  plant had
aggregate net natural gas processing  capacity of 32.0 MMcf per day at September
1, 1996.  For the nine months ended  September 30, 1996,  the Hoole Area natural
gas processing  plant  processed an average of 18.9 gross MMcf (9.5 net MMcf) of
natural  gas per day,  of which 4.4% (2.2% net) was custom  processed  for third
parties. For the nine months ended September 30, 1996, the Hoole Area properties
and natural gas processing plants contributed $2.4 million of revenue to CGGS.

      The  Company   believes  that  the  Canadian   Abraxas   Properties   have
significant,  quantifiable  development  potential which can be realized through
exploitation  and development.  The Company believes that processing  volumes at
the Canadian Abraxas Plants can be increased due to unutilized gross natural gas
processing  throughput  capacity at the plants of approximately  62.7 MMcf (32.4
net MMcf) of natural  gas per day.  The Company  intends to utilize  this excess
capacity by seeking to process additional natural gas volumes from third parties
and from increased production from the Canadian Abraxas Properties. In addition,
the Company believes that increases in the demand for natural gas from, Alberta,
Canada will help to reduce the existence of basis  differentials  in the pricing
of natural gas produced in this area. The Company believes that its ownership of
the Canadian Abraxas Properties and the Canadian Abraxas Plants will afford it a
competitive  advantage  relative to other area  operators  due to the  Company's
preferential access to the natural gas processing capacity at these facilities.
    

      Immediately  after the acquisition of CGGS, the Company  amalgamated  CGGS
with Canadian  Abraxas,  and Canadian  Abraxas,  being the name of the surviving
entity,  used the net  proceeds  from the sale of the Nevis  Plant to retire the
outstanding debentures of CGGS. In addition,  Canadian Abraxas intends to sell a
10% working interest in the Canadian Abraxas Properties and the Canadian Abraxas
Plants to Cascade,  in  connection  with the  Company's  plan to  integrate  the
operations of the Canadian  Abraxas  Properties and the Canadian  Abraxas Plants
into the existing  operations  of Cascade Oil & Gas Ltd.,  one of the  Company's
Canadian  subsidiaries  ("Cascade").  The Company has identified  potential cost
savings through  anticipated  decreases in the G&A expenses of CGGS, which would
have amounted to approximately  $380,000 for the nine months ended September 30,
1996, on a pro forma basis.  See the unaudited Pro Forma  Financial  Information
and the notes thereto included elsewhere in this Prospectus.

The Wyoming Properties

      On September 30, 1996,  the Company  acquired  producing  properties  with
total proved  reserves of 9,935 MBOE (68.5% natural gas) as of June 30, 1996, in
the Wamsutter area of southwestern Wyoming (the "Wyoming  Properties") for $47.5
million in cash,  before adjustment for accrual of net revenue and interest from
April 1, 1996 to September 30, 1996.  The Wyoming  Properties  consist of 19,587
gross acres (14,091 net acres) and 25 gross wells (20.4 net wells),  22 of which
are  operated  by  the  Company.  In  addition,  the  Company  acquired  various
overriding  royalty  interests in four wells. As of June 30, 1996, the aggregate
PV-10 of the Wyoming Properties was $30.3 million (based, in part, on an assumed
natural gas price of $1.07 per Mcf),  97.3% of which was  attributable to proved
developed  reserves.  For the nine months ended  September 30, 1996, the Wyoming
Properties would have contributed $5.4 million of EBITDA to the Company on a pro
forma basis.  As of September 30, 1996, the Company had recorded the preliminary
net purchase price of $45.9 million to its crude oil and natural gas properties.

      Management   believes  that  the  Wyoming   Properties  have   significant
development  potential  which will enable the Company to increase  its cash flow
from operations and reserve base without significant capital  expenditures.  The
Company intends to exploit this development potential through the more efficient
use of compression and gathering  facilities,  low cost recompletions of various
behind-pipe  zones and drilling of infill  development  wells on closer spacing.
The Company has drilled two wells on the Wyoming  Properties since September 30,
1996.  Additionally,  the  Company has  identified  potential  exploitation  and
development  opportunities  which  it  believes  may have up to  15,400  MBOE of
additional  reserves.  The Wyoming Properties are  geographically  concentrated,
thereby  enabling  the  Company  to operate  the  properties  without  incurring
additional  G&A  expenses.  In  addition,  the Company  believes  that  expected
improvements in the transportation  infrastructure and an increase in the demand
for natural gas from  southwestern  Wyoming will help to reduce the existence of
basis differentials in the pricing of natural gas produced in the area.

Portilla and Happy

   
      In November 1996,  the Company  acquired a 75%  partnership  interest (the
"Partnership  Interest") in Portilla-1996,  L.P. (the  "Partnership")  for $27.6
million,  including the repayment of certain  indebtedness and before adjustment
for the accrual of net revenue to the closing date. The Company previously owned
the  remaining 25% interest in the  Partnership.  The  Partnership  owned a 100%
working  interest in the Portilla Field,  located in the Texas Gulf Coast region
(the  "Portilla  Field"),  a 100%  interest  in a natural gas  processing  plant
located at the  Portilla  Field (the  "Portilla  Plant" and,  together  with the
Portilla  Field,  "Portilla")  and a 12% working  interest  in the Happy  Field,
located in the Permian Basin of west Texas ("Happy"). Portilla and Happy consist
of 1,405 gross acres (1,115 net acres) and 78 gross wells (52 net wells),  61 of
which are operated by the Company.  As of June 30, 1996,  Portilla and Happy had
total proved  reserves of 4,314 MBOE (18.4% natural gas) with an aggregate PV-10
of $30.2 million,  99.8% of which was attributable to proved developed reserves.
The Portilla Plant had natural gas  processing  capacity of  approximately  20.0
MMcf per day at September 30, 1996.  During the nine months ended  September 30,
1996,  the Portilla  Plant  processed an average of 18.2 MMcf of natural gas per
day. For the nine months ended September 30, 1996, Portilla and Happy would have
contributed  an additional  $3.8 million of EBITDA to the Company on a pro forma
basis.
    

      The Company  previously owned a 50% interest in Portilla and a 12% working
interest in Happy. In March 1996, the Company sold its interests in Portilla and
Happy to Acco,  LLC ("Acco") for net  consideration  of $15.6 million (the "Acco
Sale").  Acco  subsequently  obtained  the release of a 50%  overriding  royalty
interest in  Portilla  previously  owned by the  Commingled  Pension  Trust Fund
(Pension II), the trustee of which is Morgan  Guaranty Trust Company of New York
(the "Pension  Fund"),  and Acco then  contributed its interests in Portilla and
Happy to the  Partnership in return for the  Partnership  Interest.  The Company
continued  to operate  Portilla  subsequent  to the Acco Sale.  See  "Business -
Recent Acquisitions -- Portilla and Happy."

East White Point and Stedman Island

      In November 1996,  the Company  obtained the release of the 50% overriding
royalty  interests in the East White Point Field,  San Patricio  Country,  Texas
("East  White  Point")  and the  Stedman  Island  Field,  Nueces  County,  Texas
("Stedman Island") from the Pension Fund for $9.3 million, before adjustment for
accrual of net revenue  from August 1, 1996 to November  27,  1996.  The Pension
Fund's interest in East White Point and Stedman Island  consisted of 3,723 gross
acres  (1,256  net acres) and 25 gross  wells (6.5 net  wells),  15 of which are
operated  by the  Company.  As of June 30,  1996,  East White  Point and Stedman
Island had total  proved  reserves  of 5,304 MBOE  (62.5%  natural  gas) with an
aggregate  PV-10 of $29.4  million,  71.7% of which was  attributable  to proved
developed reserves.  The East White Point natural gas processing plant, a modern
cyrogenic plant with capacity of approximately 25.0 MMcf of natural gas per day,
extracted  approximately  679  Bbls of NGLs per day for the  nine  months  ended
September 30, 1996.



<PAGE>


                                The Transactions

   
      The initial offering of the Notes (the  "Offering"),  the execution of the
New Credit Facility, the repayment of the indebtedness under the Company's $85.0
million  revolving credit and term loan facility with BTCo. and ING Capital (the
"Bridge  Facility")  and  the  consummation  of  the  Recent   Acquisitions  are
collectively referred to herein as the "Transactions."
    

                                  Risk Factors

      See "Risk  Factors"  for a  discussion  of certain  factors that should be
considered in evaluating an investment in the Notes.



<PAGE>


                          PURPOSE OF THE EXCHANGE OFFER

      The  Exchange  Offer  provides  holders  of the  Series  A Notes  with the
Exchange  Notes  which will  generally  be freely  transferable  by the  holders
thereof without  registration or any prospectus  delivery  requirement under the
Securities  Act.  The Issuers'  purpose in engaging in the Exchange  Offer is to
provide holders of the Series A Notes with freely transferable securities and to
comply with the provisions of the  Registration  Rights Agreement which require,
subject to certain conditions,  that the Exchange Offer be made. See "Purpose of
the Exchange Offer".

                               THE EXCHANGE OFFER

Exchange                                Ratio Each Series A Note is exchangeable
                                        for a like principal  amount of Exchange
                                        Notes.

   
Expiration                              Date 5:00 p.m.,  New York City time,  on
                                        __________,  1997  unless  extended,  in
                                        which  case the term  "Expiration  Date"
                                        means the latest  date and time to which
                                        the  Exchange   Offer  shall  have  been
                                        extended.
    
                                        

Principal Amount of Notes               Subject to the terms and  conditions of
                                        the Exchange Offer,  any and all Series
                                        A  Notes  will  be   accepted  if  duly
                                        tendered  and not  withdrawn  prior  to
                                        acceptance thereof.  The Exchange Offer
                                        is not  conditioned  upon  any  minimum
                                        principal  amount of the Series A Notes
                                        being  tendered.  The Indenture  limits
                                        the  aggregate  amount  of  the  Notes,
                                        including  the  Series A Notes  and the
                                        Exchange    Notes,    which    may   be
                                        outstanding     to    $215.0    million
                                        principal  amount,   all  of  which  is
                                        currently  in the form of the  Series A
                                        Notes.

Trading and Market Price                The   Series  A  Notes  are   currently
                                        eligible  for  quotation   through  the
                                        National   Association   of  Securities
                                        Dealers,  Inc.'s PORTAL  system.  Prior
                                        to the  date  hereof,  there  has  been
                                        only a  private  institutional  trading
                                        market  for the  Series A Notes.  It is
                                        anticipated   that  a  similar  trading
                                        market  will  exist  for  the  Exchange
                                        Notes  following the Exchange Offer. BT
                                        Securities  Corporation,   Jefferies  &
                                        Company,  Inc.  and ING  Baring  (U.S.)
                                        Securities  Corporation  (the  "Initial
                                        Purchasers")  have  advised the Issuers
                                        that  they  intend  to  act  as  market
                                        makers   for   the   Exchange    Notes;
                                        however,  they are not  obligated to do
                                        so and may  discontinue  market  making
                                        activities    with   respect   to   the
                                        Exchange  Notes at any time.  See "Risk
                                        Factors -- Lack of Public Market."

Conditions of the Exchange Offer        The Issuers'  obligation  to consummate
                                        the   Exchange   Offer  is  subject  to
                                        certain  conditions.  See "The Exchange
                                        Offer --  Conditions."  Tenders  of the
                                        Series A Notes may be  withdrawn at any
                                        time prior to the Expiration  Date. See
                                        "The   Exchange   Offer  --  Withdrawal
                                        Rights."

How to Tender                           Tendering   holders  of  the  Series  A
                                        Notes  must  either  (i)  complete  and
                                        sign  a  Letter  of  Transmittal,  have
                                        their    signatures    guaranteed    if
                                        required,   forward   the   Letter   of
                                        Transmittal   and  any  other  required
                                        documents to the Exchange  Agent at the
                                        address  set forth  under  the  caption
                                        "Exchange  Agent",  and either  deliver
                                        the  Series  A  Notes  to the  Exchange
                                        Agent  or  tender  such  Series A Notes
                                        pursuant   to   the    procedures   for
                                        book-entry  transfer or (ii)  request a
                                        broker,  dealer, bank, trust company or
                                        other    nominee    to    effect    the
                                        transaction   for   them.    Beneficial
                                        owners   of   the    Series   A   Notes
                                        registered  in the  name  of a  broker,
                                        dealer,  bank,  trust  company or other
                                        nominee must  contact such  institution
                                        to  tender  their  Series A Notes.  The
                                        Series  A  Notes   may  be   physically
                                        delivered,  but  physical  delivery  is
                                        not  required  if a  confirmation  of a
                                        book-entry  transfer  of such  Series A
                                        Notes to the Exchange  Agent's  account
                                        at  DTC  is   delivered   in  a  timely
                                        fashion.  Certain  provisions have also
                                        been made for  holders  whose  Series A
                                        Notes are not readily  available or who
                                        cannot  comply with the  procedure  for
                                        book-entry  transfer on a timely basis.
                                        Questions  regarding  how to tender and
                                        requests  for  information   should  be
                                        directed  to the  Exchange  Agent.  See
                                        "The Exchange Offer -- How to Tender."

Acceptance of Tenders                   Subject to the terms and  conditions of
                                        the  Exchange   Offer,   including  the
                                        reservation  of  certain  rights by the
                                        Issuers,  the  Series  A Notes  validly
                                        tendered prior to the  Expiration  Date
                                        will be  accepted  promptly  after such
                                        Expiration   Date.   Subject   to  such
                                        terms  and  conditions,   the  Exchange
                                        Notes  to be  issued  in  exchange  for
                                        validly  tendered  Series A Notes  will
                                        be   mailed  by  the   Exchange   Agent
                                        promptly   after   acceptance   of  the
                                        tendered  Series A Notes or credited to
                                        the  holder's   account  in  accordance
                                        with       appropriate       book-entry
                                        procedures.  Although  the  Issuers  do
                                        not currently  intend to do so, if they
                                        modify the terms of the Exchange  Offer
                                        prior  to  the  Expiration  Date,  such
                                        modified  terms  will be  available  to
                                        all  holders  of the  Series  A  Notes,
                                        whether  or not  their  Series  A Notes
                                        have  been   tendered   prior  to  such
                                        modification.        Any       material
                                        modification   will  be   disclosed  in
                                        accordance  with the  applicable  rules
                                        of the  Commission  and,  if  required,
                                        the Exchange  Offer will be extended to
                                        permit  holders  of the  Series A Notes
                                        adequate    time   to   consider   such
                                        modification.  See "The Exchange  Offer
                                        -- Acceptance of Tenders."

   
Exchange Agent                          IBJ Schroder Bank & Trust Company,  One
                                        State  Street,   New  York,   New  York
                                        10004,    Attention:     Reorganization
                                        Operations Department
    

Securities Offered                      $215,000,000     aggregate    principal
                                        amount of 11.5% Senior Notes due 2004.

Issuers                                 Abraxas   Petroleum   Corporation   and
                                        Canadian Abraxas Petroleum Limited,  as
                                        joint and several obligors.

Maturity Date                           November 1, 2004.

Interest                                Payment Dates Interest on the Notes will
                                        accrue  from the Issue  Date and will be
                                        payable  semi-annually on each May 1 and
                                        November 1, commencing May 1, 1997.

Ranking                                 The  Notes  will be  general  unsecured
                                        obligations  of the  Issuers  and  will
                                        rank  pari  passu to all  existing  and
                                        future  unsubordinated  indebtedness of
                                        the  Issuers  and  senior to all future
                                        subordinated    indebtedness   of   the
                                        Issuers.  The Notes will be effectively
                                        subordinated  in  right of  payment  to
                                        all   existing   and   future   secured
                                        indebtedness of the Issuers.

Optional Redemption                     The Notes will be redeemable,  in whole
                                        or  in  part,  at  the  option  of  the
                                        Issuers on or after  November  1, 2000,
                                        at  the  redemption  prices  set  forth
                                        herein,   plus   accrued   and   unpaid
                                        interest to the date of redemption.  In
                                        addition,  at any  time on or  prior to
                                        November 1, 1999,  the Issuers  may, at
                                        their  option,  redeem up to 35% of the
                                        aggregate   principal   amount  of  the
                                        Notes  with  the net cash  proceeds  of
                                        one  or  more  Equity  Offerings  at  a
                                        redemption  price  equal to  111.5%  of
                                        the aggregate  principal  amount of the
                                        Notes to be redeemed,  plus accrued and
                                        unpaid   interest   to  the   date   of
                                        redemption;  provided,  however,  that,
                                        after   giving   effect   to  any  such
                                        redemption,  at least  $139.75  million
                                        aggregate   principal   amount  of  the
                                        Notes remains outstanding.

Change of Control                       Upon a Change of  Control,  each holder
                                        will  have  the  right to  require  the
                                        Issuers  to  repurchase  such  holder's
                                        Notes at a  redemption  price  equal to
                                        101% of the  principal  amount  thereof
                                        plus  accrued  and unpaid  interest  to
                                        the date of  repurchase.  In  addition,
                                        the Issuers  will be obligated to offer
                                        to repurchase  the Notes at 100% of the
                                        principal  amount  thereof plus accrued
                                        and  unpaid  interest  to the  date  of
                                        redemption  in  the  event  of  certain
                                        asset sales.

Guarantees                              The  Notes  will  be  guaranteed   (the
                                        "Guarantees")  on  a  senior  basis  by
                                        each of the Subsidiary Guarantors.  The
                                        Guarantees  will be  general  unsecured
                                        obligations     of    the    Subsidiary
                                        Guarantors  and will rank pari passu to
                                        all unsubordinated  indebtedness of the
                                        Subsidiary  Guarantors.  The Guarantees
                                        will  be  effectively  subordinated  in
                                        right    of    payment    to    secured
                                        indebtedness    of    the    Subsidiary
                                        Guarantors.

   
Certain Covenants                       The Indenture  governing the Notes (the
                                        "Indenture")   will   contain   certain
                                        covenants  that  limit the  ability  of
                                        the   Issuers   and  their   Restricted
                                        Subsidiaries  (as  defined  herein) to,
                                        among other  things,  incur  additional
                                        indebtedness,  pay  dividends  or  make
                                        certain  other   restricted   payments,
                                        consummate  certain asset sales,  enter
                                        into    certain    transactions    with
                                        affiliates,  incur  liens,  and imposes
                                        restrictions   on  the   ability  of  a
                                        Restricted  Subsidiary to pay dividends
                                        or  make   certain   payments   to  the
                                        Issuers     and    their     Restricted
                                        Subsidiaries,   merge  or   consolidate
                                        with any other person or sell,  assign,
                                        transfer,  lease,  convey or  otherwise
                                        dispose of all or substantially  all of
                                        the assets of either of the Issuers.
    

       For additional information regarding the Exchange Notes, see "Description
       of the Notes."



<PAGE>


            EXCHANGE OFFER; REGISTRATION RIGHTS; ADDITIONAL INTEREST

      In the  Registration  Rights  Agreement,  the  Issuers  agreed (i) to file
within 45 days after the Issue Date, and to cause to become effective within 120
days after the Issue Date, a registration statement with respect to the Exchange
Offer, and (ii) upon the Exchange Offer Registration  Statement's being declared
effective, to offer the Exchange Notes in exchange for surrender of the Series A
Notes.  If the Issuers do not comply with their  registration  obligations  in a
timely manner,  they will be required to pay additional interest (in addition to
the  scheduled  payment  of  interest)  during  the first 90 day  period of such
default in an amount  equal to 0.50% per annum at the end of such 90 day period.
The amount of the additional  interest will increase by an additional  0.50% per
annum for each  subsequent  90 day period  until such  obligations  are complied
with, up to a maximum amount of additional  interest of 2.00% per annum.  In the
event that  applicable  interpretations  of the staff of the  Commission  do not
permit the Issuers to effect the Exchange  Offer, or if for any other reason the
Exchange  Offer is not  consummated  within  150 days of the Issue  Date,  or if
certain  holders of the Series A Notes are not  permitted to receive the benefit
of the  Exchange  Offer,  the  Issuers  will use their best  efforts to cause to
become  effective a shelf  registration  statement with respect to the resale of
the Series A Notes and to keep such shelf registration statement effective until
the earlier of three years after its effective  date and such time as all of the
Series A Notes have been sold thereunder.


                                      
<PAGE>



             Summary Historical and Pro Forma Financial Information

   
      The following table presents  summary  historical  consolidated  financial
data of the Company for the five years ended  December 31,  1995,  and as of and
for the nine months ended  September 30, 1995 and 1996,  which have been derived
from the Company's  consolidated  financial  statements and unaudited historical
and pro forma financial data. The pro forma data give effect to the consummation
of the  Transactions.  The unaudited Pro Forma Condensed  Balance Sheet reflects
such  adjustments as if the Transactions had occurred at September 30, 1996, and
the unaudited Pro Forma Statements of Operations for the year ended December 31,
1995 and for the nine months ended  September 30, 1996 reflect such  adjustments
as if the  Transactions  had  occurred  on January 1, 1995 and  January 1, 1996,
respectively.  The historical  consolidated  financial data of the Company as of
and for the nine months ended September 30, 1995 and 1996 have been derived from
the Company's interim consolidated financial statements which, in the opinion of
management  of the Company,  have been prepared on the same basis as the audited
consolidated  financial  statements and include all  adjustments  (consisting of
only normal  recurring  adjustments)  necessary for a fair  presentation  of the
financial data for such periods.  The statement of operations  data for the nine
months ended September 30, 1996 is not  necessarily  indicative of results for a
full year.  The  information  in this table should be read in  conjunction  with
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations,"  "Selected Consolidated Financial Data," the Consolidated Financial
Statements  and  the  notes  thereto  and  the  unaudited  Pro  Forma  Financial
Information and the notes thereto included elsewhere in this Prospectus.
    
<TABLE>
<CAPTION>

                                                                                            Nine Months Ended
                                            Year Ended December 31,                           September 30,
                            ----------------------------------------------------------- ------------------------
                                                                               Pro                         Pro
                                                                               Forma                      Forma
   
                               1991      1992     1993      1994    1995     1995(1)(2)   1995     1996   1996(2)
                             --------   -------  -------  --------  -------  ---------- --------  ------ -------
                                                                  
                                        (dollars in thousands, except ratios)
Consolidated   Statement  of
Operations Data:
   
<S>                           <C>       <C>      <C>      <C>      <C>      <C>         <C>     <C>      <C>        
Total operating revenue (3)   $ 1,150   $ 2,691  $ 7,494  $11,349  $13,817  $45,696     $9,929  $11,909  $42,251
Operating expense (4)             322     1,075    2,964    3,826    4,458   13,283      3,278    3,408   10,855
DD&A expense                      361       957    2,373    3,790    5,434   21,092      3,541    4,145   17,664
G&A expense                       338       770      510      810    1,042    2,592        769    1,250    2,545
Interest expense                  132       906    2,531    2,359    3,911   24,276      2,915    2,142   18,151
Amortization of deferred     
financing fee                     --        --       649      400      214    1,025        120      192      769 
Income (loss) from     
continuing operations
before extraordinary items        (15)   (1,072)  (1,580)     113   (1,208) (15,917)      (685)     122   (8,034)

Preferred stock dividends        (249)     (249)    (186)    (183)    (366)    (366)      (274)    (274)    (274)
Net income (loss)
applicable to common stock    $  (264)  $(4,204) $(2,619) $(2,577) $(1,574) $(16,283)   $ (959)  $  (520) $(8,308)
    
Other Data:
   
EBITDA (5)                    $   168   $   760  $ 4,049  $ 6,728  $ 8,351  $ 29,893    $5,892  $ 6,894   $28,403
Capital expenditures          $ 2,940   $ 7,866  $26,234  $40,906  $12,256   $22,842    $9,223  $58,040   $66,036
Ratio  of  EBITDA  to  fixed   
charges (6) (7)                  1.27x      --      1.27x    2.44x    2.02x    1.18.x   1.94x    2.95x     1.50x
Ratio(deficiency) of   
earnings to fixed
charges(8)(9)                     --        --        --     1.04x     --       --       --      1.05x      --
Ratio     (deficiency)    of
earnings to  combined  fixed   
charges and preferred  stock 
dividends (10)(11)                --        --        --       --      --       --       --        --       --
    
<CAPTION>

   
                                                                                             September 30, 1996(2)
                                                                                             Historical  Pro Forma
                                                                                             (dollars in thousands)
Consolidated  Balance  Sheet Data:                                                  
<S>                                                                                             <C>       <C>     
Cash and cash equivalents                                                                       $  9,993  $ 11,486
Total assets                                                                                     130,440   291,824
Total debt (12)                                                                                   85,123   215,124
Shareholders' equity (11)                                                                         36,421    36,197
ACNTA (13)                                                                                                 293,761
Ratio   of  ACNTA  to  total                                                          
debt (14)                                                                                                     1.37x
    
</TABLE>
- --------------
(1) The results of  operations of CGGS for 1995  included  herein  reflect CGGS'
results of operations for its fiscal year ended October 31, 1995.
   
(2) Includes  results from the Hoole Area. See " - Recent  Acquisitions - CGGS."
(3) Consists of crude oil and natural gas  production  sales,  revenue from rig
operations  and  processing  facilities  and other  miscellaneous  revenue.
(4) Consists of lease operating and production taxes, rig operating expenses and
processing  expenses.
(5) EBITDA is defined as income (loss) from continuing  operations before income
taxes,  interest expense,  DD&A, amortization of deferred financing fee and
other non-cash  charges.  The Company  believes that the  presentation of EBITDA
facilitates an investor's understanding of a company's ability to service and/or
incur  indebtedness.  EBITDA  should  not be  considered  by an  investor  as an
alternative to net income as an indicator of the Company's operating performance
or to cash flows as a measure of liquidity.
(6) Fixed  charges  consist of  interest  expense and  amortization  of deferred
financing fees.
(7) The  Company's  EBITDA  was  inadequate  to cover  fixed  charges in 1992 by
$146,000.
(8) Earnings consist of income (loss) from continuing  operations  before income
taxes  plus  fixed  charges.  Fixed  charges  consist of  interest  expense  and
amortization of deferred financing fees.
(9)The Company's  earnings were inadequate to cover fixed charges in 1991, 1992,
1993, and 1995 by $15,000, $1,072,000, $1,393,000, and $1,208,000, respectively,
for pro forma 1995 by $16,500,000,  for the nine months ended September 30, 1995
by  $684,000,  and for the pro forma nine  months  ended  September  30, 1996 by
$8,474,000.
(10) Earnings consist of income (loss) from continuing  operations before income
tax plus interest  expense and  amortization of deferred  financing fees.  Fixed
charges and preferred stock dividends consist of interest expense,  amortization
of deferred financing fees and preferred stock dividends.
(11) The Company's earnings were inadequate to cover fixed charges and preferred
stock  dividends in 1991,  1992,  1993,  1994 and 1995 by $264,000,  $1,321,000,
$1,579,000,  $70,000  and  $1,574,000,  respectively,  for the pro forma 1995 by
$16,866,000,  for the nine months ended  September 30, 1995 and 1996 by $958,000
and $152,000,  respectively,  and for the pro forma nine months ended  September
30, 1996 by $8,748,000.
(12) Consists of long-term debt, including capital lease obligations.
(13) Consists of 5,804,812  shares of the Company's Common Stock, par value $.01
per  share,  of which  70,711 are  treasury  shares,  and  45,741  shares of the
Company's  Series  1995-B  Preferred  Stock,  par value $.01 per share  ("Series
1995-B  Preferred").   Each  share  of  Series  1995-B  Preferred  Stock  has  a
liquidation  preference of $100, is entitled to cumulative  annual  dividends of
$8.00 per share payable quarterly and is convertible into 11.11 shares of Common
Stock.
(14)  Adjusted  Consolidated  Net  Tangible  Assets  ("ACNTA").  Pro Forma ACNTA
includes:  $218,292,000 of PV-10, $12,104,000 of working capital, $32,660,000 of
book value for the  processing  plants,  $28,628,000  of book value for unproved
properties,  $3,372,000  of book  value  for  other  properties  and  equipment,
$858,000 of book value for other tangible  assets less  $2,153,000 of book value
for minority interest.
    


<PAGE>


                                                        
           Summary Historical and Pro Forma Reserve and Operating Data

      The  following  table sets forth summary  information  with respect to the
Company's  estimated proved crude oil, NGLs and natural gas reserves and certain
summary  information  with respect to the Company's  operations  for the periods
indicated.  See "Management's Discussion and Analysis of Financial Condition and
Results of Operations," the Company's  Consolidated Financial Statements and the
notes thereto and the unaudited Pro Forma  Financial  Information  and the notes
thereto  included  elsewhere in this  Prospectus.  The pro forma reserve data at
December 31, 1995 and June 30, 1996 give effect to the  Transactions  as if they
had occurred on December 31, 1995 and June 30, 1996,  respectively,  and the pro
forma  operations  data for the year ended December 31, 1995 and the nine months
ended September 30, 1996 give effect to the Transactions as if they had occurred
on January 1, 1995 and January 1, 1996, respectively.
<TABLE>
<CAPTION>

                                                               
                                                                Six Months Ended June 30,
                                                              ---------------------------      
                               Historical             Pro         Historical        Pro
                           ------------------------  Forma    ------------------   Forma
                            1993     1994    1995    1995(1)   1995      1996     1996(2)
                           -------  -------  ------  -------  --------  --------  --------
Estimated Proved
Reserves (period-end):
- --------------------------
<S>                        <C>      <C>      <C>     <C>        <C>     <C>      <C>   
Crude oil and NGLs (MBbls)  4,086    9,156    8,267   16,547    n/a(3)     6,513   16,039
Natural gas (MMcf)         16,591   67,579   54,569  191,593    n/a(3)    52,566  177,651
Crude oil equivalents
(MBOE)                      6,851   20,420   17,362   48,479    n/a(3)    15,274   45,647
     % Proved developed     87.7%    67.9%    76.8%    80.8%    n/a(3)     76.9%    81.7%
                                                              
Estimated future net
revenue before income    
taxes (in thousands)      $64,257 $153,476 $164,058 $402,445(4) n/a(3)  $157,153 $414,497(4)
PV-10 (in thousands)       41,095   78,868   89,992  223,790(4) n/a(3)    81,925  218,292(4)
     %Proved developed      89.9%    76.7%    78.4%    90.2%    n/a(3)     79.7%    85.3%
                                                               
Reserve Life (years):(5)    14.6     23.5     15.3      9.2     n/a(3)     13.8(6)    8.7(6)
                                                               
Reserve Replacement
Rate:(7)                   1,017%  1,664%     (116%)    640%    n/a(3)      207%   1,075%
                                                     
<CAPTION>

                                                                      Nine Months Ended
                                                                        September 30, 
                                                              -------------------------------
                                                                   Historical      Pro Forma
                                                              ------------------  -----------
                                                                1995       1996    1996 (1)
                                                              --------  --------  -----------
Average Net Daily Production:
<S>                      <C>      <C>      <C>      <C>      <C>        <C>      <C>  
Crude oil and NGLs (Bbls)    835   1,285      1,493    3,668    1,423      1,358    4,071
Natural gas (Mcf)          2,700   6,556      9,733   65,275    9,654      9,582   60,340

Average Sales Price:
Crude oil (per Bbl)      $ 15.54  $15.47   $  17.16 $  17.18  $ 17.24   $  19.94 $  20.04
NGLs (per Bbl)             14.75   10.54      10.83     7.82    10.94      12.73    10.89
Natural gas (per Mcf)       2.60    1.85       1.47     1.01     1.41       1.95     1.30

Natural  Gas   Processing
Plants:
Net plant capacity
(MMcfpd) (period end)         25      25         25      123       25        25       128
     (period-end)
Percentage utilization     52.6%   58.3%      62.4%    60.7%    62.1%     64.1%      68.2%
Percentage  of throughput
attributable to 
third-party processing      7.9%    5.3%       9.3%    35.3%     9.1%     11.0%      31.2%
</TABLE>
- ----------------
   
(1)The operations data of CGGS for 1995 included herein reflect CGGS' operations
data  (including  the Hoole  Area) for its fiscal year ended  October 31,  1995.
CGGS'  operations  data for the nine months ended  September  30, 1996  included
herein  reflect CGGS'  operations  data  (including the Hoole Area) for the nine
months ended October 31, 1996.
(2)Includes  reserve  information  for  the  Company,  the  Wyoming  Properties,
Portilla and Happy and East White Point and Stedman  Island at June 30, 1996 and
the Canadian Abraxas Properties (including the Hoole Area) at September 1, 1996.
Does not include reserves of Cascade.
    
(3) Not available.  Reserve  information  for 1995 was prepared by the Company's
independent petroleum engineers as of January 1, 1996 only. (4) Does not include
the present value of future net cash flow from  processing  natural gas of third
parties at the Canadian Abraxas Plants.  (5) Except as otherwise noted,  Reserve
Life is calculated as proved reserves  divided by annual  production,  both on a
BOE basis.  (6) Based on reserve data as of June 30, 1996 (and September 1, 1996
with respect to the CGGS reserve data
   
   included in the pro forma calculation which includes the reserve data for the
   Hoole  Area),  and  production  for the  six  months  ended  June  30,  1996,
   annualized to derive estimated annual production.
    
(7) Reserve  replacement  rate is calculated as reserve  additions in the period
divided by production for the period, both on a BOE basis.



<PAGE>



                                                     
                                  RISK FACTORS

      Prospective  investors should carefully  consider the following factors in
addition to the other information in this Prospectus before making an investment
in the Notes offered hereby.

High Degree of Leverage

   
      As adjusted for the consummation of the Transactions,  the Company's total
debt and stockholders'  equity would have been approximately  $215.1 million and
$36.2 million,  respectively, as of September 30, 1996. See "Capitalization." In
addition, the Company has entered into the New Credit Facility,  under which the
Company's  borrowing capacity is an initial maximum of up to $20.0 million.  For
the year ended  December 31, 1995 and the nine months ended  September 30, 1996,
on a pro forma basis,  the Company's ratio of EBITDA to fixed charges would have
been 1.18x and 1.50x,  respectively,  and its ratio of earnings to fixed charges
and preferred  stock dividends would have been inadequate to cover fixed charges
by $16.9 million and $8.7 million,  respectively.  The Company  intends to incur
additional  indebtedness in the future in connection with acquiring,  developing
and exploiting  producing  properties,  although the Company's  ability to incur
additional indebtedness may be limited by the terms of the Indenture and the New
Credit Facility.  See "Description of the Notes,"  "Management's  Discussion and
Analysis of  Financial  Condition  and  Results of  Operations  - Liquidity  and
Capital  Resources" and the unaudited Pro Forma  Financial  Information  and the
notes thereto included elsewhere in this Prospectus
    

      The Company's level of indebtedness will have several important effects on
its future operations  including (i) a substantial portion of the Company's cash
flow from  operations  will be  dedicated  to the  payment  of  interest  on its
indebtedness  and will not be  available  for  other  purposes;  (ii)  covenants
contained in the  Company's  debt  obligations  will require the Company to meet
certain financial tests and other  restrictions  which will limit its ability to
borrow  additional  funds or to dispose  of assets and may affect the  Company's
flexibility in planning for, and reacting to, changes in its business, including
possibly  limiting  acquisition  activities;  and (iii) the Company's ability to
obtain  additional  financing  in  the  future  for  working  capital,   capital
expenditures,  acquisitions,  interest payments,  scheduled  principal payments,
general corporate purposes or other purposes may be limited. See "Description of
the Notes --  Certain  Covenants  --  Limitation  on  Incurrence  of  Additional
Indebtedness" and "Management's  Discussion and Analysis of Financial  Condition
and Results of Operations - Liquidity and Capital Resources."

      The Company's  ability to meet its debt service  obligations and to reduce
its total indebtedness will be dependent upon the Company's future  performance,
which will be subject to general economic conditions and to financial,  business
and other  factors  affecting the  operations of the Company,  many of which are
beyond  its  control.  Based  upon  the  current  level  of  operations  and the
historical  production of the producing  properties and related assets currently
owned by the Company, the Company believes that its cash flow from operations as
well  as  borrowing  capabilities  will be  adequate  to  meet  its  anticipated
requirements  for working  capital,  capital  expenditures,  interest  payments,
scheduled  principal  payments and general  corporate or other  purposes for the
foreseeable  future.  See the unaudited Pro Forma Financial  Information and the
notes thereto included elsewhere in this Prospectus,  the Company's Consolidated
Financial Statements and the notes thereto included elsewhere in this Prospectus
and "Management's  Discussion and Analysis of Financial Condition and Results of
Operations  -Liquidity  and  Capital  Resources."  No  assurance  can be  given,
however,  that the  Company's  business will continue to generate cash flow from
operations at or above current levels or that the  historical  production of the
producing  properties and related assets  currently  owned by the Company can be
sustained  in the future.  If the  Company is unable to generate  cash flow from
operations  in the future to service its debt,  it may be required to  refinance
all or a portion of its existing debt or to obtain additional  financing.  There
can be no  assurance  that  such  refinancing  would  be  possible  or that  any
additional  financing could be obtained.  In addition,  the Notes are subject to
certain limitations on redemption.  See "Description of the Notes -- Redemption"
and "Management's  Discussion and Analysis of Financial Condition and Results of
Operations - Liquidity and Capital Resources."



<PAGE>


Ranking of Indebtedness

      The Notes will be general  unsecured  obligations  of the Issuers and will
rank pari passu in right of payment to all  existing  and future  unsubordinated
indebtedness  of the  Issuers  and  senior  in right of  payment  to all  future
subordinated  indebtedness  of the  Issuers.  In  addition,  the  Notes  will be
unconditionally  guaranteed,  jointly and  severally,  by each of the Subsidiary
Guarantors.  The  Guarantees  will  be  general  unsecured  obligations  of  the
Subsidiary  Guarantors  and will  rank  pari  passu in right of  payment  to all
existing and future unsubordinated indebtedness of the Subsidiary Guarantors and
senior in right of payment to all present and future  subordinated  indebtedness
of  the  Subsidiary   Guarantors.   However,   the  Notes  will  be  effectively
subordinated  to  secured   indebtedness  of  the  Issuers  and  the  Subsidiary
Guarantors to the extent of the value of the assets securing such  indebtedness.
As of September 30, 1996, on a pro forma basis,  the Issuers and the  Subsidiary
Guarantors  would have had $215.1 million of indebtedness  outstanding,  none of
which would have been secured,  and $20.0 million of availability  under the New
Credit  Facility,  which  borrowings  will  be  secured.  See  "Capitalization,"
"Description  of  the  Notes"  and  "Management's  Discussion  and  Analysis  of
Financial   Condition   and  Results  of  Operations  -  Liquidity  and  Capital
Resources."

Repurchase of Notes Upon a Change of Control

      Upon the  occurrence  of a Change of Control,  the  Issuers  must offer to
purchase all of the Notes then  outstanding at a purchase price equal to 101% of
the principal  amount thereof,  plus accrued interest to the date of purchase (a
"Change of Control Offer"). See "Description of the Notes -- Change of Control."

      Prior to commencing such an offer to purchase, the Issuers may be required
to (i) repay in full all  indebtedness  of the Issuers  that would  prohibit the
repurchase of the Notes,  including that under the New Credit Facility,  or (ii)
obtain  any  requisite  consent  to permit the  repurchase.  See "  Management's
Discussion  and  Analysis of  Financial  Condition  and Results of  Operations -
Liquidity  and Capital  Resources."  If the Issuers  were unable to repay all of
such  indebtedness  or were unable to obtain the  necessary  consents,  then the
Issuers would be unable to offer to repurchase  the Notes and such failure would
constitute  an Event of Default under the  Indenture.  There can be no assurance
that the Issuers will have sufficient  funds available at the time of any Change
of Control to repurchase the Notes.

      The events that require a Change of Control  Offer under the Indenture may
also constitute events of default under the New Credit Facility. Such events may
permit the lenders under such debt  instruments to accelerate the payment of the
debt and, if the debt is not paid, to commence litigation which could ultimately
result in a sale of  substantially  all of the assets of the  Company to satisfy
the debt, thereby limiting the Company's ability to raise cash to repurchase the
Notes and reducing the practical benefit of the offer to purchase  provisions to
the holders of the Notes.

Net Losses

      The Company has experienced recurring losses. For the years ended December
31, 1992, 1993, 1994 and 1995, and the nine months ended September 30, 1996, the
Company recorded net losses of $4.0 million,  $2.4 million,  $2.4 million,  $1.2
million  and  $0.2  million,  respectively.  See  "Management's  Discussion  and
Analysis of Financial  Condition  and Results of  Operations"  and the Company's
Consolidated  Financial  Statements and the notes thereto included  elsewhere in
this Prospectus.

Industry Conditions; Impact on Company's Profitability

      The  Company's  revenue,  profitability  and  future  rate of  growth  are
substantially  dependent upon  prevailing  prices for crude oil and natural gas.
Crude oil and natural gas prices can be  extremely  volatile and in recent years
have been depressed by excess total domestic and imported  supplies.  Prices are
also  affected  by actions of state and local  agencies,  the United  States and
foreign  governments and international  cartels.  While prices for crude oil and
natural gas  increased  during the fourth  quarter of 1995 and remained at these
levels  during 1996,  there can be no assurance  that these levels for crude oil
and natural gas prices can be sustained. These external factors and the volatile
nature of the energy  markets  make it difficult  to estimate  future  prices of
crude oil and natural gas. Any substantial or extended  decline in the prices of
crude oil and natural gas would have a material  adverse effect on the Company's
financial  condition and results of operations,  including reduced cash flow and
borrowing capacity.  All of these factors are beyond the control of the Company.
Sales  of  crude  oil and  natural  gas  are  seasonal  in  nature,  leading  to
substantial  differences  in cash flow at  various  times  throughout  the year.
Federal  and  state  regulation  of crude oil and  natural  gas  production  and
transportation,  general economic  conditions,  changes in supply and changes in
demand all could  adversely  affect the Company's  ability to produce and market
its crude oil and natural gas. If market  factors  were to change  dramatically,
the financial  impact on the Company could be substantial.  The  availability of
markets  and the  volatility  of product  prices  are beyond the  control of the
Company and thus represent a significant risk.

      In  addition,  declines in crude oil and natural gas prices  might,  under
certain  circumstances,  require a write-down of the book value of the Company's
crude oil and natural gas properties.  If such declines were severe enough, they
could result in the occurrence of an event of default under the Notes or the New
Credit  Facility that could require the sale of some of the Company's  producing
properties under  unfavorable  market  conditions or require the Company to seek
additional  equity  capital.  In  addition,  the  Indenture  and the New  Credit
Facility contain certain restrictions on certain sales of assets by the Company.
See  "Description  of the Notes" and  "Management's  Discussion  and Analysis of
Financial Condition and Results of Operations Liquidity and Capital Resources."

      In order to manage its  exposure  to price risks in the  marketing  of its
crude oil and natural  gas, the Company from time to time has entered into fixed
price delivery contracts,  financial swaps and crude oil and natural gas futures
contracts as hedging devices. To ensure a fixed price for future production, the
Company may sell a futures  contract  and  thereafter  either (i) make  physical
delivery of crude oil or natural gas to comply with such  contract or (ii) buy a
matching futures contract to unwind its futures position and sell its production
to a customer.  Such  contracts  may expose the Company to the risk of financial
loss in certain circumstances, including instances where production is less than
expected,  the Company's  customers  fail to purchase or deliver the  contracted
quantities of crude oil or natural gas, or a sudden, unexpected event materially
impacts  crude oil or natural gas prices.  Such  contracts may also restrict the
ability of the Company to benefit  from  unexpected  increases  in crude oil and
natural gas prices.

Restrictions Imposed by Terms of the Company's Indebtedness

      The  Indenture  and the New Credit  Facility  will  restrict,  among other
things, the Company's ability to incur additional indebtedness, incur liens, pay
dividends or make certain other restricted  payments,  consummate  certain asset
sales,  enter into certain  transactions  with affiliates,  merge or consolidate
with any other  person or sell,  assign,  transfer,  lease,  convey or otherwise
dispose of all or substantially  all of the assets of the Company.  In addition,
the New Credit Facility will contain additional and more restrictive  covenants.
The  Indenture  and the New Credit  Facility  also will  require  the Company to
maintain  specified  financial  ratios and satisfy certain  financial tests. The
Company's  ability to meet such  financial  ratios and tests may be  affected by
events beyond its control,  and there can be no assurance  that the Company will
meet such ratios and tests. See "Description of the Notes -- Certain  Covenants"
and "Management's  Discussion and Analysis of Financial Condition and Results of
Operations  -  Liquidity  and  Capital  Resources."  A  breach  of any of  these
covenants  could result in a default under the  Indenture  and/or the New Credit
Facility.  Upon the  occurrence  of an event of  default  under  the New  Credit
Facility,  the lenders thereunder could elect to declare all amounts outstanding
under the New Credit Facility, together with accrued interest, to be immediately
due and payable. If the Company were unable to repay those amounts, such lenders
could  proceed   against  the   collateral   granted  to  them  to  secure  that
indebtedness.  If the  lenders  under the New  Credit  Facility  accelerate  the
payment of such  indebtedness,  there can be no assurance that the assets of the
Company  would be sufficient  to repay in full such  indebtedness  and the other
indebtedness  of the  Company,  including  the Notes.  Substantially  all of the
Company's  U.S.  assets,  including,  without  limitation,  working  capital and
interests in producing  properties and related assets owned by the Company,  and
the proceeds  thereof will be pledged as security under the New Credit Facility.
See "Management's  Discussion and Analysis of Financial Condition and Results of
Operations - Liquidity and Capital Resources."

Substantial Capital Requirements

      The  Company  makes,  and  will  continue  to  make,  substantial  capital
expenditures for the  acquisition,  exploitation,  development,  exploration and
production of crude oil and natural gas reserves.  Historically, the Company has
financed  these  expenditures  primarily  with cash flow from  operations,  bank
borrowings and the offering of its equity securities.  The Company believes that
it will have  sufficient  capital to finance planned  capital  expenditures.  If
revenue or the Company's  borrowing base under the New Credit Facility  decrease
as a result of lower crude oil and natural gas prices, operating difficulties or
declines in reserves,  the Company may have limited  ability to finance  planned
capital  expenditures  in the future.  There can be no assurance that additional
debt or equity  financing or cash  generated by operations  will be available to
meet these requirements.  See "Management's Discussion and Analysis of Financial
Condition and Results of Operations -- Liquidity and Capital Resources."

Integration of Operations; Foreign Operations

   
      The Company's  future  operations  and earnings will be largely  dependent
upon the Company's  ability to integrate the operations of Canadian  Abraxas and
the  Wyoming  Properties  into  the  current  operations  of  the  Company.  The
operations of Canadian Abraxas and the Wyoming Properties vary in geography from
those of the Company prior to the  consummation  of the  Transactions,  and with
respect to Canadian  Abraxas,  to some extent,  in scope and type, from those of
the  Company  prior to the  consummation  of the  Transactions.  There can be no
assurance  that  the  Company  will  be  able  to  successfully  integrate  such
operations  with  those of the  Company,  and a  failure  to do so would  have a
material  adverse  effect  on  the  Company's  financial  position,  results  of
operations and cash flows. Additionally, although the Company does not currently
have any specific acquisition plans, the need to focus management's attention on
integration  of the new  operations,  as well as other  factors,  may  limit the
Company's  ability to successfully  pursue  acquisitions or other  opportunities
related to its business for the foreseeable future. Also, successful integration
of  operations  will be subject  to  numerous  contingencies,  some of which are
beyond management's  control.  These contingencies  include general and regional
economic  conditions,  prices for crude oil and  natural  gas,  competition  and
changes in regulation.  Even if the Company were  successful in integrating  the
new  operations,  the  acquisition  of CGGS  in  particular  will  significantly
increase the Company's  dependence  on  international  operations,  specifically
those in Canada, and therefore the Company will be subject to various additional
political,  economic and other  uncertainties.  Among other risks, the Company's
operations  will be subject to the risks of  restrictions on transfers of funds,
export duties and quotas,  domestic and international  customs and tariffs,  and
changing taxation policies, foreign exchange restrictions,  political conditions
and  governmental   regulations.   In  addition,  the  Company  will  receive  a
substantial   portion  of  its  revenue  in  Canadian  dollars.   As  a  result,
fluctuations  in the exchange  rates of the Canadian  dollar with respect to the
U.S.  dollar could have an adverse effect on the Company's  financial  position,
results of operations  and cash flows.  The Company may from time to time engage
in hedging  programs  intended  to reduce the  Company's  exposure  to  currency
fluctuations.
    

Future Availability of Natural Gas Supply

      To obtain volumes of committed natural gas reserves to supply the Canadian
Abraxas  Plants,  Canadian  Abraxas  will  contract to process  natural gas with
various  producers.  Future natural gas supplies available for processing at the
Canadian  Abraxas  Plants will be  affected by a number of factors  that are not
within the  Company's  control,  including  the  depletion  rate of natural  gas
reserves  currently  connected to the Canadian  Abraxas Plants and the extent of
exploration  for,  production and  development of, and demand for natural gas in
the areas in which Canadian Abraxas will operate.  Long-term  contracts will not
protect  Canadian  Abraxas from shut-ins or supply  curtailments  by natural gas
suppliers.  Although CGGS was  historically  successful in  contracting  for new
natural gas  supplies  and in  renewing  natural  gas supply  contracts  as they
expired,  there is no assurance that Canadian Abraxas will be able to do so on a
similar basis in the future.

Operating Hazards; Uninsured Risks

      The nature of the crude oil and  natural  gas  business  involves  certain
operating  hazards  such as crude  oil and  natural  gas  blowouts,  explosions,
encountering formations with abnormal pressures,  cratering and crude oil spills
and fires,  any of which could result in damage to or  destruction  of crude oil
and natural gas wells,  destruction of producing  facilities,  damage to life or
property, suspension of operations,  environmental damage and possible liability
to the Company.  In accordance with customary  industry  practices,  the Company
maintains  insurance  against some, but not all, of such risks and some, but not
all,  of such  losses.  The  occurrence  of such an event not fully  covered  by
insurance  could have a material  adverse effect on the financial  condition and
results of operations of the Company.



<PAGE>


Competition

      The Company  encounters  strong  competition  from major oil companies and
independent  operators in acquiring  properties  and leases for the  exploration
for, and production of, crude oil and natural gas.  Competition is  particularly
intense with respect to the acquisition of desirable  undeveloped  crude oil and
natural gas properties.  The principal competitive factors in the acquisition of
such undeveloped crude oil and natural gas properties include the staff and data
necessary  to  identify,  investigate  and  purchase  such  properties,  and the
financial  resources  necessary to acquire and develop such properties.  Many of
the  Company's  competitors  have  financial  resources,  staff  and  facilities
substantially  greater than those of the Company.  In addition,  the  producing,
processing and marketing of crude oil and natural gas is affected by a number of
factors which are beyond the control of the Company,  the effect of which cannot
be accurately predicted.

      The principal raw  materials and resources  necessary for the  exploration
and production of crude oil and natural gas are leasehold  prospects under which
crude oil and natural gas reserves may be discovered,  drilling rigs and related
equipment to explore for such  reserves and  knowledgeable  personnel to conduct
all phases of crude oil and natural gas operations. The Company must compete for
such raw  materials  and  resources  with both major  crude oil and  natural gas
companies and independent  operators.  Although the Company believes its current
operating  and  financial  resources  are adequate to preclude  any  significant
disruption of its operations in the immediate future, the continued availability
of such materials and resources to the Company cannot be assured.

      The Company will face  significant  competition  for obtaining  additional
natural gas supplies for  gathering  and  processing  operations,  for marketing
NGLs, residue gas, helium,  condensate and sulfur, and for transporting  natural
gas  and  liquids.  The  Company's  principal  competitors  will  include  major
integrated oil companies and their  marketing  affiliates and national and local
gas gatherers,  brokers,  marketers and distributors of varying sizes, financial
resources  and  experience.  Certain  competitors,  such as major  crude oil and
natural gas companies,  have capital  resources and control  supplies of natural
gas substantially greater than the Company. Smaller local distributors may enjoy
a marketing advantage in their immediate service areas.

      The  Company  will  compete  against  other  companies  in its natural gas
processing  business both for supplies of natural gas and for customers to which
it will  sell its  products.  Competition  for  natural  gas  supplies  is based
primarily  on  location  of natural  gas  gathering  facilities  and natural gas
gathering plants,  operating  efficiency and reliability and ability to obtain a
satisfactory  price for products  recovered.  Competition for customers is based
primarily on price and delivery capabilities.

Reliance on Estimates of Proved Reserves and Future Net Revenue

      There are numerous  uncertainties  inherent in  estimating  quantities  of
proved  reserves and in projecting  future rates of production and the timing of
development  expenditures,  including  many  factors  beyond the  control of the
Company.  The reserve data included in this Prospectus represent only estimates.
In addition,  the  estimates of future net revenue from proved  reserves and the
present value thereof are based upon certain assumptions about future production
levels,  prices,  and  costs  that may not prove to be  correct  over  time.  In
particular,  estimates of crude oil and natural gas reserves, future net revenue
from  proved  reserves  and the PV-10  thereof for the crude oil and natural gas
properties  described in this Prospectus are based on the assumption that future
crude oil and  natural  gas prices  remain the same as crude oil and natural gas
prices at June 30, 1996, with respect to Abraxas' existing  properties,  and for
the month of July 1996 with  respect to the  Canadian  Abraxas  Properties.  The
average sales prices as of such dates used for purposes of such  estimates  were
$19.86 per Bbl of crude oil, $14.09 per Bbl of NGLs and $1.27 per Mcf of natural
gas with respect to the  Canadian  Abraxas  Properties,  $21.70 per Bbl of crude
oil,  $9.25 per Bbl of NGLs and $1.07 per Mcf of natural gas with respect to the
Wyoming  Properties,  $19.98  per Bbl of crude  oil,  $14.50 per Bbl of NGLs and
$2.65 per Mcf of natural gas with  respect to Portilla  and Happy and $20.64 per
Bbl of crude oil,  $12.38 per Bbl of NGLs and $2.29 per Mcf of natural  gas with
respect to the Company's other properties in the aggregate.  Also assumed is the
Company's making future capital  expenditures of approximately  $19.7 million in
the aggregate, including $3.4 million on the Wyoming Properties, $1.7 million on
the  Canadian  Abraxas  Properties  and $2.2  million  on  Portilla  and  Happy,
necessary  to develop and realize  the value of proved  undeveloped  reserves on
these properties. Any significant variance in these assumptions could materially
affect the  estimated  quantity  and value of  reserves  set forth  herein.  See
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations  --  Liquidity  and  Capital  Resources"  and  "Business  -- Reserves
Information."

Certain Business Risks

      The Company intends to continue acquiring  producing crude oil and natural
gas  properties  or  companies  that own such  properties.  Although the Company
performs a review of the acquired properties that it believes is consistent with
industry practices,  such reviews are inherently incomplete. It generally is not
feasible  to  review  in  depth  every  individual  property  involved  in  each
acquisition.  Ordinarily,  the  Company  will  focus its  review  efforts on the
higher-valued  properties  and  will  sample  the  remainder.  However,  even an
in-depth  review  of all  properties  and  records  may not  necessarily  reveal
existing  or  potential  problems  nor will it  permit  the  Company  to  become
sufficiently familiar with the properties to assess fully their deficiencies and
capabilities.  Inspections  may not  always  be  performed  on every  well,  and
environmental problems, such as ground water contamination,  are not necessarily
observable even when an inspection is undertaken.  Furthermore, the Company must
rely on information,  including financial, operating and geological information,
provided by the seller of the properties  without being able to verify fully all
such information and without the benefit of knowing the history of operations of
all such properties.

      In addition,  a high degree of risk of loss of invested  capital exists in
almost all exploration and development  activities which the Company undertakes.
No assurance  can be given that crude oil or natural gas will be  discovered  to
replace reserves currently being developed,  produced and sold, or that if crude
oil or natural gas reserves are found, they will be of a sufficient  quantity to
enable the Company to recover the  substantial  sums of money  incurred in their
acquisition,  discovery  and  development.  Drilling  activities  are subject to
numerous risks, including the risk that no commercially  productive crude oil or
natural gas reservoirs will be encountered. The cost of drilling, completing and
operating wells is often uncertain.  The Company's  operations may be curtailed,
delayed or cancelled as a result of numerous  factors  including title problems,
weather conditions,  compliance with governmental  requirements and shortages or
delays in the delivery of equipment.  The availability of a ready market for the
Company's  natural gas  production  depends on a number of  factors,  including,
without  limitation,  the demand for and supply of natural gas, the proximity of
natural gas reserves to pipelines, the capacity of such pipelines and government
regulations.

Depletion of Reserves

      The rate of production from crude oil and natural gas properties  declines
as reserves are depleted.  Except to the extent the Company acquires  additional
properties  containing  proved  reserves,  conducts  successful  exploration and
development  activities or, through engineering studies,  identifies  additional
behind-pipe  zones or secondary  recovery  reserves,  the proved reserves of the
Company will decline as reserves are produced.  Future crude oil and natural gas
production is therefore  highly dependent upon the Company's level of success in
acquiring or finding additional reserves. See "-- Certain Business Risks."

      The  Company's  ability to continue  to acquire  producing  properties  or
companies that own such properties  assumes that major  integrated oil companies
and  independent  oil companies  will continue to divest many of their crude oil
and  natural  gas  properties.  There can be no  assurance,  however,  that such
divestitures  will  continue  or that the Company  will be able to acquire  such
properties at acceptable prices or develop additional reserves in the future. In
addition,  under the terms of the  Indenture  and the New Credit  Facility,  the
Company's ability to obtain additional  financing in the future for acquisitions
and capital expenditures may be limited.

Government Regulation

      The Company's  business is subject to certain federal,  state,  provincial
and local laws and regulations  relating to the exploration for and development,
production and marketing of crude oil and natural gas, as well as  environmental
and  safety  matters.  Such laws and  regulations  have  generally  become  more
stringent in recent years,  often imposing greater  liability on a larger number
of potentially  responsible  parties.  Because the requirements  imposed by such
laws and  regulations are frequently  changed,  the Company is unable to predict
the ultimate cost of compliance  with such  requirements.  There is no assurance
that laws and  regulations  enacted in the future will not adversely  affect the
Company's  financial  condition  and results of  operations.  See  "Business  --
Regulatory Matters."

Fraudulent Conveyance

      Various fraudulent conveyance laws enacted for the protection of creditors
may apply to the  Subsidiary  Guarantors'  issuance  of the  Guarantees.  To the
extent  that a  court  were to find  that  (x) a  Guarantee  was  incurred  by a
Subsidiary  Guarantor with actual intent to hinder, delay or defraud any present
or  future  creditor  or (y) such  Subsidiary  Guarantor  did not  receive  fair
consideration or reasonably  equivalent value for issuing its Guarantee and such
Subsidiary Guarantor (i) was insolvent, (ii) was rendered insolvent by reason of
the  issuance  of such  Guarantee,  (iii)  was  engaged  or about to engage in a
business  or  transaction  for which  the  remaining  assets of such  Subsidiary
Guarantor  constituted  unreasonably  small  capital to carry on its business or
(iv)  intended  to incur,  or believed  that it would  incur,  debts  beyond its
ability to pay such debts as they matured,  the court could avoid or subordinate
such Guarantee in favor of the  Subsidiary  Guarantor's  creditors.  Among other
things,  a legal challenge of a Guarantee on fraudulent  conveyance  grounds may
focus on the benefits,  if any, realized by the Subsidiary Guarantor as a result
of the issuance by the Company of the Notes.  To the extent any Guarantees  were
avoided as a fraudulent  conveyance or held  unenforceable for any other reason,
the claims of holders of the Notes in respect of such Subsidiary Guarantor would
be  adversely  affected  and such holders  would,  to such extent,  be creditors
solely of the Company  and any  Subsidiary  Guarantor  whose  Guarantee  was not
avoided or held  unenforceable.  To the extent the claims of the  holders of the
Notes against the issuer of an invalid Guarantee were  subordinated,  they would
be subject to the prior payment of all liabilities of such Subsidiary Guarantor.
There can be no assurance  that,  after  providing for all prior  claims,  there
would be  sufficient  assets to satisfy  the claims of the  holders of the Notes
relating to any voided portion of any of the Guarantees.

      The measure of  insolvency  for purposes of the  foregoing  considerations
will vary  depending  upon the law  applied  in any such  proceeding.  Under one
measure,  the Subsidiary  Guarantors  may be considered  insolvent if the sum of
their  debts,  including  contingent  liabilities,  were  greater  than the fair
marketable  value of all of their  assets at a fair  valuation or if the present
fair  marketable  value of their  assets were less than the amount that would be
required to pay their  probable  liability on their  existing  debts,  including
contingent liabilities, as they become absolute and mature.

      Based upon financial and other information,  the Company believes that the
Notes and the  Guarantees  are being  incurred  for proper  purposes and in good
faith and that the Company  and each  Subsidiary  Guarantor  is solvent and will
continue to be solvent after issuing the Notes or its Guarantee, as the case may
be,  will have  sufficient  capital  for  carrying  on its  business  after such
issuance  and will be able to pay its  debts  as they  mature.  There  can be no
assurance,  however, that a court passing on such standards would agree with the
Company.

Dependence on Key Personnel

      The Company depends to a large extent on Robert L. G. Watson, its Chairman
of the Board,  President and Chief  Executive  Officer,  for its  management and
business and financial  contacts.  See "Management."  The  unavailability of Mr.
Watson would have a materially  adverse  effect on the Company's  business.  The
Company's  success  is also  dependent  upon its  ability  to employ  and retain
skilled  technical  personnel.  While the  Company  has not to date  experienced
difficulties in employing or retaining such  personnel,  its failure to do so in
the future could adversely affect its business.

Limitations   on  the   Availability   of  the  Company's  Net  Operating   Loss
Carryforwards

      As a result of the acquisition of certain partnership  interests and crude
oil and natural gas  properties  in 1990 and 1991,  an  ownership  change  under
section 382  ("Section  382") of the Internal  Revenue Code of 1986,  as amended
(the "Code"),  occurred in December 1991.  Accordingly,  it is expected that the
use of net operating loss carryforwards  generated prior to December 31, 1991 of
$6.9 million will be limited to  approximately  $235,000 per year.  During 1992,
the Company  acquired  100% of the  outstanding  capital  stock of an  unrelated
corporation.  The use of net operating loss carryforwards of $3.6 million of the
unrelated  corporation  are limited to  approximately  $115,000  per year.  As a
result of the issuance of additional shares of Common Stock for acquisitions and
to raise  capital,  an  additional  ownership  change  occurred in October 1993.
Accordingly,  it is expected  that the use of the $13.4 million of net operating
loss   carryforwards   generated   through  October  1993  will  be  limited  to
approximately $1.0 million per year, subject to the limitations described above,
and $7.2 million in the aggregate. Future changes in ownership may further limit
the  use of  the  Company's  carryforwards.  In  addition  to  the  Section  382
limitations,   uncertainties   exist  as  to  the  future   utilization  of  the
carryforwards  under the criteria set forth in  Financial  Accounting  Standards
Board  ("FASB")  Statement No. 109,  "Accounting  for Income Taxes." The Company
established a valuation  allowance of $5.5 million and $5.7 million for deferred
tax assets at December 31, 1994 and 1995, respectively.

Lack of Public Market

      There is no existing  trading  market for the Notes.  Although the Initial
Purchasers have advised the Issuers that they currently  intend to make a market
in the Notes and, if issued, the Exchange Notes, they are not obligated to do so
and they may  discontinue  such  market-making  at any time without  notice.  In
addition,  such market-making  activity may be limited during the Exchange Offer
and the pendency of the Shelf  Registration  Statement (as defined  herein),  if
any. Although the Notes will be eligible for trading in the PORTAL Market, there
can be no assurance as to the  development of any market or the liquidity of any
market that may develop for the Notes or the Exchange Notes.  The Issuers do not
intend to apply for listing or quotation of the Notes on any securities exchange
or stock market.

                          PURPOSE OF THE EXCHANGE OFFER

      In  connection  with the initial  sale of the Series A Notes,  the Issuers
agreed, subject to certain conditions,  to use their best efforts to conduct the
Exchange Offer pursuant to the terms of the Registration Rights Agreement by and
among  the  Issuers  and  the  Initial  Purchasers  (the  "Registration   Rights
Agreement").  The Registration  Rights Agreement,  pursuant to which the Issuers
agreed,  with  respect  to the  Series  A  Notes  and  subject  to the  Issuers'
determination  that the Exchange  Offer is permitted  under  applicable  law and
Commission  policy, to (i) cause to be filed with the Commission,  no later than
45 days after the Issue Date, a registration  statement under the Securities Act
relating  to the  Exchange  Notes and the  Exchange  Offer,  (ii) use their best
efforts (a) to cause such registration statement to be declared effective by the
Commission  in no event later than 120 days after the Issue  Date,  (b) upon the
effectiveness of such  registration  statement,  to commence the Exchange Offer,
and (c) to cause the Exchange Offer to remain open for a period of not less than
30 days.  The Issuers'  purpose in making the  Exchange  Offer is to comply with
such  agreement and to avoid the increase in interest rate on the Series A Notes
which would occur if the  Exchange  Offer were not duly and timely  consummated.
The Exchange Offer should provide holders of the Series A Notes with the ability
to effect, for federal income tax purposes, a tax-free exchange of such Series A
Notes,  which are subject to trading  limitations,  for Exchange Notes that will
not be subject to such restrictions.

      The  Exchange  Offer  provides  holders  of the  Series  A Notes  with the
Exchange Notes that will  generally be freely  transferable  by holders  thereof
(other than any holder who is an "affiliate" or "promoter" of the Issuers within
the  meaning of Rule 405 under the  Securities  Act),  who may offer for resale,
resell or otherwise  transfer such Exchange  Notes  without  complying  with the
registration and prospectus  delivery provisions of the Securities Act, provided
that  such  Exchange  Notes are  acquired  in the  ordinary  course of each such
holder's business and such holders have no arrangement or understanding with any
person to participate in a distribution of the Exchange  Notes.  Each holder who
participates  in the  Exchange  Offer will be  required  to  represent  that any
Exchange  Notes  received by it will be acquired in the  ordinary  course of its
business,  that at the time of  consummation  of the Exchange  Offer such holder
will have no arrangement or understanding  with any person to participate in the
distribution  of the  Exchange  Notes  in  violation  of the  provisions  of the
Securities  Act, and that such holder is not an affiliate of the Issuers  within
the meaning of the Securities Act.



<PAGE>


                          RESALE OF THE EXCHANGE NOTES

      With respect to resales of the Exchange Notes, based on interpretations by
the staff of the  Commission  set  forth in  no-action  letters  issued to third
parties, the Issuers believe that a holder or other person who receives Exchange
Notes,  whether or not such person is the holder (other than a person that is an
"affiliate"  of the Issuers  within the meaning of Rule 405 under the Securities
Act) who receives  Exchange Notes in exchange for Series A Notes in the ordinary
course of business and who is not participating, does not intend to participate,
and has no arrangement or understanding  with any person to participate,  in the
distribution of the Exchange Notes, will be allowed to resell the Exchange Notes
to the public without further  registration under the Securities Act and without
delivering to the purchasers of the Exchange  Notes a prospectus  that satisfies
the  requirements  of Section 10 of the Securities Act.  However,  if any holder
acquires Exchange Notes in the Exchange Offer for the purpose of distributing or
participating  in a distribution of the Exchange Notes,  such holder cannot rely
on the  position of the staff of the  Commission  enunciated  in such  no-action
letters  or  any  similar  interpretive   letters,  and  must  comply  with  the
registration  and prospectus  delivery  requirements of the Securities Act (with
such prospectus  containing the selling  securityholder  information required by
Item 507 of Regulation  S-K under the  Securities  Act) in  connection  with any
resale   transaction,   unless  an  exemption  from  registration  is  otherwise
available.  Further,  each  Participating  Broker-Dealer  that receives Exchange
Notes for its own  account in exchange  for Series A Notes,  where such Series A
Notes  were  acquired  by  such  Participating  Broker-Dealer  as  a  result  of
market-making  activities  or  other  trading  activities,  may  be a  statutory
underwriter and must acknowledge  that it will deliver a prospectus  meeting the
requirements of the Securities Act (which may be this  Prospectus,  as it may be
amended or supplemented from time to time) in connection with any resale of such
Exchange Notes.

   
      As  contemplated by these no-action  letters and the  Registration  Rights
Agreement,  each holder accepting the Exchange Offer is required to represent to
the Issuers in the Letter of  Transmittal  that (i) the Exchange Notes are to be
acquired by the holder or the person  receiving such Exchange Notes,  whether or
not such person is the holder,  in the  ordinary  course of  business,  (ii) the
holder or any such other person (other than a  broker-dealer  referred to in the
next  sentence)  is  not  engaging  and  does  not  intend  to  engage,  in  the
distribution  of the Exchange  Notes,  (iii) the holder or any such other person
has no  arrangement  or  understanding  with any  person to  participate  in the
distribution of the Exchange  Notes,  (iv) neither the holder nor any such other
person is an "affiliate" of the Issuers within the meaning of Rule 405 under the
Securities Act, and (v) the holder or any such other person acknowledges that if
such holder or other person  participates  in the Exchange Offer for the purpose
of  distributing  the Exchange  Notes it must comply with the  registration  and
prospectus  delivery  requirements  of the Securities Act in connection with any
resale of the  Exchange  Notes and cannot  rely on such  no-action  letters.  As
indicated above, each Participating Broker-Dealer that receives an Exchange Note
for its own account in exchange for the Series A Notes must  acknowledge that it
will deliver a prospectus in connection  with any resale of such Exchange Notes.
For  a  description  of  the  procedures  for  such  resales  by   Participating
Broker-Dealers, see "Plan of Distribution."
    

                              PLAN OF DISTRIBUTION

      Each Participating  Broker-Dealer that receives Exchange Notes for its own
account  pursuant to the Exchange Offer must  acknowledge that it will deliver a
prospectus  in  connection  with  any  resale  of  such  Exchange  Notes.   This
Prospectus,  as it may be amended or supplemented from time to time, may be used
by a  Participating  Broker-Dealer  in connection with resales of Exchange Notes
received  in  exchange  for the Series A Notes  where  such  Series A Notes were
acquired as a result of  market-making  activities or other trading  activities.
The  Issuers  have  agreed  that they will make this  Prospectus,  as amended or
supplemented, available to any Participating Broker-Dealer for use in connection
with any such resale during the period required by the Securities Act.

      The Issuers will not receive any  proceeds  from any sales of the Exchange
Notes  by   Participating   Broker-Dealers.   The  Exchange  Notes  received  by
Participating  Broker-Dealers  for their own account  pursuant  to the  Exchange
Offer  may be  sold  from  time  to  time  in one or  more  transactions  in the
over-the-counter  market,  in  negotiated  transactions,  through the writing of
options on the Exchange  Notes or a  combination  of such methods of resale,  at
market  prices  prevailing  at the time of  resale,  at prices  related  to such
prevailing  market  prices or  negotiated  prices.  Any such  resale may be made
directly  to the  purchaser  or  through  brokers  or  dealers  who may  receive
compensation   in  the  form  of  commissions  or  concessions   from  any  such
Participating  Broker-Dealer  and/or the purchasers of any such Exchange  Notes.
Any  Participating  Broker-Dealer  that  resells  the  Exchange  Notes that were
received by it for its own account pursuant to the Exchange Offer and any broker
or dealer that  participates  in a  distribution  of such Exchange  Notes may be
deemed to be an  "underwriter"  within the meaning of the Securities Act and any
profit on any such resale of Exchange  Notes and any  commissions or concessions
received by any such persons may be deemed to be underwriting compensation under
the Securities Act. The Letter of Transmittal  states that by acknowledging that
it will deliver and by delivering a prospectus,  a  Participating  Broker-Dealer
will not be deemed to admit that it is an  "underwriter"  within the  meaning of
the Securities Act. The Issuers have agreed to pay all expenses  incident to the
Exchange  Offer other than  commissions or concessions of any brokers or dealers
and will  indemnify an Eligible  Holder  (including any  broker-dealer)  against
certain liabilities, including liabilities under the Securities Act.

      The Issuers will promptly send  additional  copies of this  Prospectus and
any   amendment  or  supplement   to  this   Prospectus  to  any   Participating
Broker-Dealer that requests such documents in the Letter of Transmittal.

                               THE EXCHANGE OFFER

Terms of the Offer

      The Issuers  hereby offer,  upon the terms and conditions set forth herein
and in the related Letter of  Transmittal,  to exchange the Exchange Notes for a
like principal amount of the outstanding  Series A Notes. An aggregate of $215.0
million  principal amount of Series A Notes are outstanding.  The Exchange Offer
is not conditioned upon any minimum amount of the Series A Notes being tendered.

   
      The  Exchange  Offer  will  expire at 5:00 p.m.,  New York City  time,  on
___________,  1997, unless extended. The term "Expiration Date" means 5:00 p.m.,
New York City time,  on  __________ , 1997,  unless the  Issuers,  in their sole
discretion,  notify the Exchange Agent that the period of the Exchange Offer has
been extended,  in which case the term  "Expiration  Date" means the latest time
and  date on which  the  Exchange  Offer as so  extended  will  expire.  See "--
Expiration and Extension."
    

      Holders of the Series A Notes who wish to exchange  the Series A Notes for
the  Exchange  Notes and who validly  tender the Series A Notes to the  Exchange
Agent or  validly  tender the Series A Notes by  complying  with the  book-entry
transfer procedures described below and, in each case, who furnish the Letter of
Transmittal and any other required  documents to the Exchange Agent, will either
have  the  Exchange  Notes  mailed  to them by the  Exchange  Agent  or have the
Exchange  Notes  credited to their  account in  accordance  with the  book-entry
transfer procedures  described below,  promptly after such tender is accepted by
the Issuers.  Subject to the terms and  conditions  of the Exchange  Offer,  the
Series A Notes which have been validly  tendered  prior to the  Expiration  Date
will be  accepted  on or  promptly  after the  Expiration  Date.  Subject to the
applicable  rules of the Commission,  the Issuers,  however,  reserve the right,
prior to the first acceptance of tendered Series A Notes, to delay acceptance of
tendered  Series A Notes,  or to terminate  the Exchange  Offer,  subject to the
provisions of Rule 14e-1(c) under the Exchange Act, which requires that a tender
offeror pay the consideration offered or return the tendered securities promptly
after the termination or withdrawal of a tender offer.

      In  addition,  the  Issuers  reserve the right to waive any  condition  or
otherwise amend the Exchange Offer in any respect  consistent with the Indenture
and the Registration Rights Agreement prior to the acceptance of tendered Series
A Notes.  If any amendment by the Issuers of the Exchange Offer or waiver by the
Issuers  of  any  condition  thereto   constitutes  a  material  change  in  the
information  previously  disclosed to the holders of Series A Notes, the Issuers
will, in accordance  with the applicable  rules of the  Commission,  disseminate
promptly  disclosure of such change in a manner reasonably  calculated to inform
such  holders  of  such  change.  If it  is  necessary  to  permit  an  adequate
dissemination of information  regarding such material  change,  the Issuers will
extend the Exchange Offer to permit an adequate time for holders of the Series A
Notes to consider the additional information.



<PAGE>


Certain Effects of the Exchange Offer

      Because the Exchange  Offer is for any and all Series A Notes,  the number
of Series A Notes  tendered and exchanged in the Exchange  Offer will reduce the
principal amount of Series A Notes  outstanding.  As a result,  the liquidity of
any remaining  Series A Notes may be substantially  reduced.  The Series A Notes
are currently  eligible for sale pursuant to Rule 144A through the PORTAL System
of the National  Association  of Securities  Dealers,  Inc.  Because the Issuers
anticipate  that most  holders  of Series A Notes will  elect to  exchange  such
Series A Notes for the Exchange Notes due to the absence of  restrictions on the
resale of the Exchange  Notes under the Securities  Act, the Issuers  anticipate
that the  liquidity  of the market for any  Series A Notes  remaining  after the
consummation of the Exchange Offer may be substantially limited.

Expiration and Extension

   
      The  Exchange  Offer  will  expire at 5:00 p.m.,  New York City  time,  on
__________ , 1997,  unless  extended by the Issuers.  The Exchange  Offer may be
extended by oral or written notice from the Issuers to the Exchange Agent at any
time or from time to time, on or prior to the date then fixed for the expiration
of the Exchange  Offer.  Public  announcement  of any  extension of the Exchange
Offer will be timely made by the Company,  but, unless otherwise required by law
or  regulation,  the Company will not have any  obligation to  communicate  such
public  announcement  other  than by  making a  release  to the Dow  Jones  News
Service.
    

      The Issuers  reserve  the right,  in their sole  discretion,  (i) to delay
accepting any Series A Notes,  (ii) to extend the Exchange Offer or (iii) if any
conditions set forth below under "-- Conditions"  shall not have been satisfied,
to terminate the Exchange  Offer by giving oral or written notice of such delay,
extension or  termination to the Exchange  Agent.  Any such delay in acceptance,
extension,  termination or amendment will be followed as promptly as practicable
by oral or written  notice thereof to the  registered  holders.  If the Exchange
Offer is amended in a manner  determined by the Issuers to constitute a material
change,  the  Issuers  will  promptly  disclose  such  amendment  by  means of a
prospectus  supplement that will be distributed to the registered holders of the
Private  Notes,  and the Issuers will extend the Exchange  Offer for a period of
five to ten business days,  depending upon the significance of the amendment and
the manner of disclosure to the registered  holders, if the Exchange Offer would
otherwise expire during such five to ten business day period.

Conditions

      The  Exchange  Offer  is  subject  to the  following  conditions:  (i) the
Exchange Offer does not violate applicable law or any applicable  interpretation
of the staff of the  Commission,  (ii) no action or  proceeding is instituted or
threatened  in any court or by any  governmental  agency which might  materially
impair the  ability of the  Issuers to proceed  with the  Exchange  Offer and no
material  adverse  development has occurred in any existing action or proceeding
with  respect to the  Issuers  and (iii) all  governmental  approvals  have been
obtained, which approvals the Issuers deem necessary for the consummation of the
Exchange Offer.

Registration Rights

      On November 14, 1996,  the Issuers  entered into the  Registration  Rights
Agreement  with the Initial  Purchasers  pursuant to which the Issuers have, for
the benefit of the holders of the Notes,  at the  Issuers'  cost,  agreed to (i)
file the  registration  statement  of which  this  Prospectus  forms a part (the
"Exchange Offer Registration Statement"),  under the Securities Act with respect
to the  Exchange  Offer which  constitutes  the  Issuers'  offer to exchange the
Series A Notes for the Exchange  Notes,  which will have terms  identical in all
material respects to the Series A Notes (except that the Exchange Notes will not
contain terms with respect to transfer restrictions and will not contain certain
provisions relating to an increase in the interest rate which were applicable to
the  Series A Notes in  certain  circumstances  relating  to the  timing  of the
Exchange Offer), and (ii) cause the Exchange Offer Registration  Statement to be
declared  effective  under the  Securities  Act  within 120 days after the Issue
Date.  The  Issuers  will  keep the  Exchange  Offer  open for not less  than 30
calendar days (or longer if required by applicable law) after the date notice of
the Exchange Offer is mailed to the holders of the Series A Notes.

   
      In the event that (i) any changes in law or the applicable interpretations
of the staff of the  Commission do not permit the Issuers to effect the Exchange
Offer,  (ii) the Exchange Offer is not consummated  within 150 days of the Issue
Date, (iii) in certain  circumstances,  certain holders of unregistered Exchange
Notes so request within 60 days after the  consummation of the Exchange Offer or
(iv) in the case of any holder that  participates  in the Exchange  Offer,  such
holder does not receive  Exchange  Notes on the date of the exchange that may be
sold without restriction under state and federal securities laws (other than due
solely to the status of such holder as an  affiliate  of the Issuers  within the
meaning of the Securities  Act) and so notifies the Issuers within 30 days after
such holder first  becomes  aware of such  restriction  and provides the Issuers
with a  reasonable  basis  for its  conclusion,  in the case of each of  clauses
(i)-(iv) of this sentence, then the Issuers will promptly deliver to the holders
and the Trustee written notice thereof and, at their cost,  (a)30 days after the
delivery of such notice, file a shelf registration statement covering resales of
the Notes (the "Shelf  Registration  Statement"),  (b) use their best efforts to
cause  the Shelf  Registration  Statement  to be  declared  effective  under the
Securities  Act and (c) use their best  efforts  to keep the Shelf  Registration
Statement  effective  until  three years after  their  effective  date,  or such
shorter  period  ending  when (i) all Notes  covered  by the Shelf  Registration
Statement have been sold in the manner set forth and as contemplated  therein or
(ii) a subsequent Shelf  Registration  Statement covering all unregistered Notes
has been declared  effective  under the Securities Act. The Issuers will, in the
event of the filing of a Shelf Registration Statement, provide to each holder of
the Notes  copies of the  prospectus  which is a part of the Shelf  Registration
Statement, notify each such holder when the Shelf Registration Statement for the
Notes has become  effective  and take certain  other  actions as are required to
permit  unrestricted  resales  of the  Notes.  A holder of Notes that sells such
Notes pursuant to the Shelf Registration Statement generally will be required to
be named as a selling  securityholder in the related prospectus and to deliver a
prospectus  to  purchasers,  will be subject  to certain of the civil  liability
provisions  under the Securities  Act in connection  with such sales and will be
bound  by  the  provisions  of  the  Registration  Rights  Agreement  which  are
applicable to such a holder (including certain indemnification  obligations). In
addition, each holder of the Notes will be required to deliver information to be
used in connection with the Shelf Registration Statement and to provide comments
on the Shelf  Registration  Statement  within the time  periods set forth in the
Registration  Rights  Agreement in order to have its Notes included in the Shelf
Registration  Statement and to benefit from the provisions  regarding liquidated
damages set forth therein.
    

      The  summary  herein of  certain  provisions  of the  Registration  Rights
Agreement does not purport to be complete and is subject to, and is qualified in
its entirety by reference  to, all the  provisions  of the  Registration  Rights
Agreement, a copy of which is available without charge by writing to the Company
at 500 North Loop 1604 East,  Suite 100,  San Antonio,  Texas 78232,  Attention:
Secretary.

How to Tender

      A  holder  of the  Series A Notes  may  tender  the  Series A Notes by (a)
properly completing and signing the Letter of Transmittal or a facsimile thereof
(all references in this Prospectus to the Letter of Transmittal  shall be deemed
to include a facsimile  thereof)  and  delivering  the same,  together  with the
Series A Notes being  tendered (or a confirmation  of an appropriate  book-entry
transfer)  to the  Exchange  Agent  on or prior  to the  Expiration  Date or (b)
requesting a broker,  dealer, bank, trust company or other nominee to effect the
transaction for such holder prior to the Expiration Date.

      If Exchange Notes are to be delivered to an address other than that of the
registered   holder  appearing  on  the  note  register  (the  "Note  Register")
maintained  by the  registrar  of the  Notes,  the  signature  on the  Letter of
Transmittal  must be guaranteed by a commercial  bank or trust company having an
office or correspondent in the United States,  or by a member firm of a national
securities exchange or the National Association of Securities Dealers, Inc. (any
of the  foregoing  is  hereinafter  referred to as an  "Eligible  Institution").
Exchange Notes will not be issued in the name of a person other than that of the
registered holder of the Series A Notes appearing on the Note Register.

      The Exchange  Agent will establish an account with respect to the Series A
Notes at DTC within two business days after the date of this Prospectus, and any
financial institution which is a participant in DTC may make book-entry delivery
of the Series A Notes by causing  DTC to  transfer  such Series A Notes into the
Exchange  Agent's  account in accordance with DTC's procedure for such transfer.
Although  delivery  of the  Series A Notes may be  effected  through  book-entry
transfer into the Exchange  Agent's  account at DTC, the Letter of  Transmittal,
with any required signature guarantees and any other required documents, must in
any case be transmitted to and received by the Exchange Agent on or prior to the
Expiration Date at one of its addresses set forth below under "Exchange  Agent",
or in  compliance  with  the  guaranteed  delivery  procedure  described  below.
DELIVERY OF DOCUMENTS TO DTC DOES NOT CONSTITUTE DELIVERY TO THE EXCHANGE AGENT.
All references in this Prospectus to deposit or delivery of Series A Notes shall
be deemed to include DTC's book-entry delivery method.

      Notwithstanding  the  foregoing,  any  financial  institution  that  is  a
participant in the  Depository's  Book-Entry  Transfer  Facility system may make
book-entry  delivery of the Existing Notes by causing the Depositary to transfer
such Existing  Notes into the Exchange  Agent's  account in accordance  with the
Depository's  Automated  Tender  Offer  Program  ("ATOP")  procedures  for  such
book-entry  transfers.  However, the exchange for the Existing Notes so tendered
will only be made after timely  confirmation  (a "Book-Entry  Confirmation")  of
such Book-Entry  Transfer of Existing Notes into the Exchange  Agent's  account,
and timely receipt by the Exchange Agent of an Agent's  Message (as such term is
defined in the next sentence) and any other documents  required by the Letter of
Transmittal.  The term "Agent's  Message"  means a message,  transmitted  by the
Book-Entry  Transfer  Facility and received by the Exchange  Agent and forming a
part of a Book-Entry  Confirmation,  which states that the  Book-Entry  Transfer
Facility has received an express acknowledgment from a participant tendering the
Series A Notes that is the  subject of such  Book-Entry  Confirmation  that such
participant  has  received  and agrees to be bound by the terms of the Letter of
Transmittal,  and that the Issuers  may  enforce  such  agreement  against  such
participant.

      THE  METHOD OF  DELIVERY  OF THE  SERIES A NOTES AND ALL OTHER  DOCUMENTS,
INCLUDING  DELIVERY  THROUGH DTC, IS AT THE ELECTION AND RISK OF THE HOLDER.  IF
SENT BY MAIL, IT IS RECOMMENDED THAT REGISTERED MAIL, RETURN RECEIPT  REQUESTED,
BE USED, AND PROPER INSURANCE BE OBTAINED.

      If a holder  desires to tender  Series A Notes  pursuant  to the  Exchange
Offer and such  holder's  Series A Notes are not  immediately  available or time
will not permit all of the above  documents to reach the Exchange Agent prior to
the Expiration  Date, or such holder cannot complete the procedure of book-entry
transfer  on a timely  basis,  such  tender  may be  effected  if the  following
conditions are satisfied:

      (a) such tenders are made by or through an Eligible Institution;

      (b) a properly completed and duly executed Notice of Guaranteed  Delivery,
in substantially  the form provided by the Issuers,  is received by the Exchange
Agent as provided below on or prior to the Expiration Date; and

      (c) the Series A Notes,  in proper form for transfer (or  confirmation  of
book-entry  transfer of such Series A Notes into the Exchange Agent's account at
DTC as described  above),  together with a properly  completed and duly executed
Letter  of  Transmittal  and all  other  documents  required  by the  Letter  of
Transmittal,  are  received by the  Exchange  Agent  within three New York Stock
Exchange,  Inc.  trading  days  after the date of  execution  of such  Notice of
Guaranteed Delivery.

      The Notice of Guaranteed  Delivery may be delivered by hand or transmitted
by facsimile  transmission  or mailed to the  Exchange  Agent and must include a
guarantee  by an  Eligible  Institution  in the form set forth in such Notice of
Guaranteed Delivery.

      A tender  will be  deemed to have  been  received  as of the date when the
tendering  holder's duly signed Letter of  Transmittal  accompanied  by Series A
Notes (or a timely  confirmation  received of a book-entry  transfer of Series A
Notes  into the  Exchange  Agent's  account  at DTC) or a Notice  of  Guaranteed
Delivery  from an  Eligible  Institution  is  received  by the  Exchange  Agent.
Issuances of Exchange Notes in exchange for Series A Notes tendered  pursuant to
a Notice of  Guaranteed  Delivery by an Eligible  Institution  will be made only
against delivery of the Letter of Transmittal (and any other required documents)
and the  tendered  Series  A  Notes  (or a  timely  confirmation  received  of a
book-entry  transfer of Series A Notes into the Exchange Agent's account at DTC)
with the Exchange Agent.

      Partial  tenders  of Series A Notes may be made only if (i) the  principal
amount tendered is equal to $1,000 or an integral multiple thereof; and (ii) the
remaining  untendered  portion of such Series A Note is in a principal amount of
$250,000,  or any integral multiple of $1,000 in excess of such amount.  Holders
tendering less than the entire  principal  amount of any Series A Note they hold
in accordance with the foregoing  restrictions must appropriately  indicate such
fact on the Letter of Transmittal accompanying the tendered Series A Note.

   
      With  respect to  tenders  of Series A Notes,  the  Issuers  reserve  full
discretion to determine  whether the  documentation is complete and generally to
determine  all  questions  as to  tenders,  including  the date of  receipt of a
tender,  the propriety of execution of any document,  and other  questions as to
the validity,  form,  eligibility or  acceptability  of any tender.  The Issuers
reserve the right to reject any tender not in proper form or otherwise not valid
or the  acceptance  for  exchange of which may,  in the opinion of the  Issuers'
counsel,  be  unlawful or to waive any  irregularities  or  conditions,  and the
Issuers'  interpretation  of the  terms and  conditions  of the  Exchange  Offer
(including  the  instructions  on the Letter of  Transmittal)  will be final and
binding.  The Issuers and the  Exchange  Agent  shall not be  obligated  to give
notice of any  defects  or  irregularities  in  tenders  and shall not incur any
liability for failure to give any such notice. The Exchange Agent may, but shall
not be obligated  to, give notice of any  irregularities  or defects in tenders,
and shall not incur any liability  for any failure to give any such notice.  The
Series A Notes shall not be deemed to have been duly or validly  tendered unless
and  until  all  defects  and  irregularities  have been  cured or  waived.  All
improperly  tendered  Series A Notes, as well as Series A Notes in excess of the
principal amount tendered for exchange,  will be returned (unless irregularities
and defects are timely cured or waived),  without cost to the  tendering  holder
(or, in the case of Series A Notes delivered by book-entry  transfer within DTC,
will be credited to the account  maintained within DTC by the participant in DTC
which delivered such shares), promptly after the Expiration Date.
    

Terms and Conditions of the Letter of Transmittal

      The Letter of Transmittal contains,  among other things, certain terms and
conditions which are summarized below and are part of the Exchange Offer.

   
      Each holder who  participates  in the  Exchange  Offer will be required to
represent  that  any  Exchange  Notes  received  by it will be  acquired  in the
ordinary course of its business, unless it is a Participating Broker-Dealer,  it
is not  engaging  and does not  intend  to  engage  in the  distribution  of the
Exchange  Notes,  that at the time of  consummation  of the Exchange  Offer such
holder will have no arrangement or understanding  with any person to participate
in the  distribution  of the Exchange Notes in violation of the provision of the
Securities Act, that such holder is not an "affiliate" of the Issuers within the
meaning of the Securities Act and that if it  participates in the Exchange Offer
for the  purpose of  distributing  the  Exchange  Notes it must  comply with the
registration  and  prospectus  delivery  requirements  of the  Securities Act in
connection with any resale of the Exchange Notes.

      The Series A Notes  tendered  in  exchange  for the  Exchange  Notes (or a
timely  confirmation  of a  book-entry  transfer of such Series A Notes into the
Exchange  Agent's account at DTC) must be received by the Exchange  Agent,  with
the Letter of Transmittal  and any other required  documents,  by 5:00 p.m., New
York City time, on or prior to ___________, 1997, unless extended, or within the
time  periods  set forth  above in "-- How to  Tender"  pursuant  to a Notice of
Guaranteed Delivery from an Eligible Institution. The party tendering the Series
A Notes for exchange (the "Holder") will sell,  assign and transfer the Series A
Notes to the Exchange Agent, as agent of the Issuers, and irrevocably constitute
and appoint the Exchange  Agent as the Holder's  agent and  attorney-in-fact  to
cause the  Series A Notes to be  transferred  and  exchanged.  The  Holder  will
warrant that it has full power and authority to tender,  exchange,  sell, assign
and transfer the Series A Notes and to acquire the Exchange  Notes issuable upon
the exchange of such tendered  Series A Notes,  the Exchange  Agent, as agent of
the Issuers,  will acquire good and unencumbered  title to the tendered Series A
Notes, free and clear of all liens, restrictions,  charges and encumbrances, and
that the Series A Notes  tendered  for  exchange  are not subject to any adverse
claims or  encumbrance  when  accepted by the  Exchange  Agent,  as agent of the
Issuers.  The Holder will also  covenant and agree that it will,  upon  request,
execute  and  deliver  any  additional  documents  deemed by the  Issuers or the
Exchange  Agent to be necessary or  desirable  to complete the  exchange,  sale,
assignment and transfer of the Series A Notes. All authority conferred or agreed
to be  conferred  in the Letter of  Transmittal  by the Holder will  survive the
death or  incapacity  of the Holder and any  obligation  of the Holder  shall be
binding upon the heirs, personal representatives, successors and assigns of such
Holder.
    

      Signature(s)  on  the  Letter  of  Transmittal  will  be  required  to  be
guaranteed  as set forth above in "-- How to Tender."  All  questions  as to the
validity, form, eligibility (including time of receipt) and acceptability of any
tender will be determined  by the Issuers,  in their sole  discretion,  and such
determination  will  be  final  and  binding.  Unless  waived  by  the  Issuers,
irregularities  and defects must be cured by the  Expiration  Date.  The Issuers
will pay all security  transfer  taxes,  if any,  applicable to the transfer and
exchange of the Series A Notes tendered.

Withdrawal Rights

      All  tenders of the Series A Notes may be  withdrawn  at any time prior to
acceptance  thereof  on the  Expiration  Date.  To be  effective,  a  notice  of
withdrawal  must be timely  received  by the  Exchange  Agent at the address set
forth below under "-- Exchange Agent." Any notice of withdrawal must specify the
person named in the Letter of Transmittal as having  tendered the Series A Notes
to be  withdrawn.  If the Series A Notes have been  physically  delivered to the
Exchange Agent, the tendering holder must also submit the serial number shown on
the particular  Series A Notes to be withdrawn.  If the Series A Notes have been
delivered pursuant to the book-entry  procedures set forth above under "--How to
Tender,"  any  notice of  withdrawal  must  specify  the name and  number of the
participant's  account at DTC to be credited with the withdrawn  Series A Notes.
The Exchange Agent will return the properly  withdrawn Series A Notes as soon as
practicable  following receipt of notice of withdrawal.  All questions as to the
validity,  including  time  of  receipt,  of  notices  of  withdrawals  will  be
determined by the Issuers,  and such determinations will be final and binding on
all parties.

Acceptance of Tenders

      Subject to the terms and conditions of the Exchange  Offer,  including the
reservation  of  certain  rights by the  Issuers,  the  Series A Notes  tendered
(either  physically  or through  book-entry  delivery as described in "-- How to
Tender") with a properly  executed  Letter of Transmittal and all other required
documentation, and not withdrawn, will be accepted promptly after the Expiration
Date.  Subject  to such  terms and  conditions,  Exchange  Notes to be issued in
exchange  for  properly  tendered  Series A Notes  will  either be mailed by the
Exchange  Agent or  credited  to the  holder's  account in  accordance  with the
appropriate  book-entry procedures promptly after the acceptance of the properly
tendered  Series A Notes.  Acceptance  of Series A Notes will be effected by the
delivery  of a notice  to that  effect by the  Issuers  to the  Exchange  Agent.
Subject to the applicable rules of the Commission, the Issuers, however, reserve
the  right,  prior to the  acceptance  of  tendered  Series  A  Notes,  to delay
acceptance  of  tendered  Series  A  Notes  upon  the  occurrence  of any of the
conditions  set forth  above  under the  caption  "--  Conditions."  The Issuers
confirms  that their  reservation  of the right to delay  acceptance of tendered
Series A Notes is subject to the  provisions of Rule 14e-1(c) under the 1934 Act
which requires that a tender offeror pay the consideration offered or return the
tendered  securities  promptly  after the  termination or withdrawal of a tender
offer.

      Although the Issuers do not currently  intend to do so, if they modify the
terms of the  Exchange  Offer,  such  modified  terms will be  available  to all
holders  of  Series A Notes,  whether  or not  their  Series A Notes  have  been
tendered prior to such modification. Any material modification will be disclosed
in accordance with the applicable rules of the Commission and, if required,  the
Exchange  Offer will be  extended to permit  holders of Series A Notes  adequate
time to consider such modification.

      The tender of Series A Notes  pursuant  to any one of the  procedures  set
forth in "-- How to Tender" will  constitute an agreement  between the tendering
holder  and the  Issuers  upon the terms and  subject to the  conditions  of the
Exchange Offer.



<PAGE>


                                 EXCHANGE AGENT

      IBJ Schroder Bank & Trust Company has been appointed as Exchange Agent for
the Exchange  Offer.  Letters of  Transmittal  must be addressed to the Exchange
Agent as follows:

   
      If Delivery By Mail:                   If Delivered By Courier or By Hand:

      IBJ Schroder Bank & Trust Company       IBJ Schroder Bank & Trust Company
      One State Street                        One State Street
      New York, New York, 10004               New York, New York 10004
      Attention: Reorganization Operations    Attention: Securities Processing
       Department                              Window, Subcellar One (SC-1)

      Delivery  to other  than the above  addresses  will not  constitute  valid
delivery.
    

Solicitation of Tenders; Expenses

      Except as  described  above under  "Exchange  Agent," the Issuers have not
retained any agent in connection  with the Exchange  Offer and will not make any
payments to brokers,  dealers or other persons for  soliciting  or  recommending
acceptances  of the Exchange  Offer.  The Issuers will,  however,  reimburse the
Exchange  Agent  for  its  reasonable   out-of-pocket   expenses  in  connection
therewith.  The Issuers  will also pay  brokerage  houses and other  custodians,
nominees and fiduciaries the reasonable  out-of-pocket expenses incurred by them
in forwarding  copies of this Prospectus and related documents to the beneficial
owners of the Series A Notes and in  handling  or  forwarding  tenders for their
customers.



<PAGE>


                                USE OF PROCEEDS

      The  Issuers  will not receive  any  proceeds as a result of the  Exchange
Offer.

      The net  proceeds  to the Issuers  from the  Offering  were  approximately
$206.8 million after deducting discounts and estimated offering expenses payable
by the  Issuers.  The  Issuers  utilized  the  net  proceeds,  primarily  to (i)
consummate  the Recent  Acquisitions,  (ii) repay all  indebtedness  outstanding
under the  Company's  credit  facility  with BTCo and ING  Capital and (iii) pay
certain  expenses  incurred in connection with the  Transactions.  The following
table illustrates the sources and uses of proceeds:

Sources of Funds                         Uses of Funds
- --------------------------------------   -------------------------------------
                           (dollars in thousands)
Notes                        $215,000    Purchase of CGGS (2)        $ 94,771
                                         Purchase of Portilla  and     
                                         Happy (3)                     2,,848  
                                         Purchase  of  East  White
                                         Point and                     
   
                                             Stedman Island (4)         8,771 
                                         Repay Bridge Facility         85,000
                                         Fees and Expenses              8,200
                                         Working Capital               (8,590)
    
                            ----------                             -----------
      Total Sources (1)      $215,000          Total Uses            $215,000
                            ----------                             -----------
- --------

(1)Does not include the  borrowing  base of $40.0  million  under the New Credit
   Facility,   $20.0  million  of  which  will   initially  be  available   upon
   consummation of the Offering.
(2)$126.4 million  converted at an  approximate  exchange rate of U.S.$0.7499 to
   one Canadian dollar.
(3)Includes   $20.6   million   paid  to   Christiania   Bank   og   Kreditkasse
   ("Christiania")  and $7.0  million  paid to Acco and the  holders  of certain
   notes (the  "Partnership  Notes") and options to purchase certain  overriding
   royalty interests issued by the Partnership,  net of estimate for the accrual
   of net crude oil and natural gas revenues to the closing date.
   
(4)Includes $9.3 million  purchase price before  estimate for the accrual of net
   crude oil and natural gas revenues to the closing date.
    



<PAGE>


                                 CAPITALIZATION

      The following table sets forth the total  consolidated  capitalization  of
the Issuers at September  30, 1996,  on an  historical  basis and on a pro forma
basis. This table should be read in conjunction with the Consolidated  Financial
Statements  of the  Issuers  and the  notes  thereto,  the  unaudited  Pro Forma
Financial  Information and the notes thereto and the other financial information
included elsewhere in this Prospectus.

                                             September 30, 1996
                                         --------------------------
                                                        Pro Forma
                                             Actual    As Adjusted
                                         ------------  ------------
                                            (dollars in thousands)
Cash and cash equivalents                 $      9,993  $     11,486
                                          ============  ============
Total debt, including current maturities:
   Bridge Facility (1)                          85,000            --
   Other long-term obligation                      124           124
   New Credit Facility                              --            --
   11 1/2% Senior Notes due 2004                    --       215,000
                                          ------------  ------------
      Total debt                                85,124       215,124
                                          ------------  ------------

Stockholders' equity:
   Preferred stock,   $.01   par   value;
1,000,000 shares  authorized;      45,741
   
shares of Series 1995-B Preferred                                
Stock     issued     and      outstanding
(liquidation preference       $4,574,100)            0             0
    
   Common   stock,    $.01   par   value;                    
50,000,000 shares       authorized;
5,804,812 shares issued                             58            58
   Treasury stock, 70,711 shares                  (374)         (374)
   Additional paid-in capital                   50,920        50,920

   Retained deficit                            (14,184)      (14,407)
                                          ------------- -------------
      Total stockholders' equity                36,420        36,197
                                          ------------  ------------
      Total capitalization                $    121,544  $    251,321
                                          ============  ============

- -------------
(1) All amounts outstanding under the Bridge Facility were repaid with a portion
of the proceeds of the initial offering of the Series A Notes.



<PAGE>


                         PRO FORMA FINANCIAL INFORMATION

      The  following  unaudited  pro forma  financial  data are derived from the
historical  financial  statements  of the  Company set forth  elsewhere  in this
Prospectus and are adjusted to reflect the consummation of the Transactions.

      The  Unaudited  Pro Forma  Condensed  Balance  Sheet of the  Company as of
September 30, 1996 has been prepared  assuming the Transactions were consummated
on September 30, 1996,  and the Unaudited Pro Forma  Statements of Operations of
the Company  for the year ended  December  31,  1995 and the nine  months  ended
September 30, 1996 have been prepared assuming the Transactions were consummated
on January 1, 1995 and January 1, 1996,  respectively.  The historical  revenues
and expenses of CGGS, the Wyoming Properties,  Portilla and Happy and East White
Point and Stedman Island  represent  amounts recorded by or with respect to such
businesses or properties for the periods indicated.

   
      The  historical  financial  statements  of CGGS were  prepared in Canadian
dollars in accordance with Canadian  generally accepted  accounting  principles.
This  information  has  been  adjusted  to  present  the  historical   financial
statements  in  accordance  with United  States  generally  accepted  accounting
principles.  The statements of operations have been translated into U.S. dollars
at the average  exchange rates of $0.7321 and $0.7273 to one Canadian dollar for
the nine months  ended  October  31, 1996 and the fiscal year ended  October 31,
1995,  respectively.  The monetary amounts on the unaudited  balance sheet as of
October 31, 1996 have been translated at the period-end exchange rate of $0.7458
to  one  Canadian  dollar.  Non-monetary  amounts  have  been  translated  at  a
historical  November 1, 1994 rate with  changes in the  amounts  since that date
translated at the average rate over the twenty-five month period. The historical
financial  statements  of CGGS  include  the  results  of the  Hoole  Area.  See
"Business - Recent  Acquisitions - CGGS" and "Business Primary Operating Areas -
Western Canada."
    

      The Company  previously owned a 50% working interest in Portilla and a 12%
working  interest in Happy.  In March 1996,  the Company  sold its  interests in
Portilla  and  Happy  to Acco  for net  consideration  of  $15.6  million.  Acco
separately  obtained  the  release of the 50%  overriding  royalty  interest  in
Portilla  previously owned by the Pension Fund and subsequently  contributed its
interests in Portilla and Happy to the  Partnership.  The pro forma  adjustments
assume that the Issuers  acquired the Pension Fund's interest in Portilla at the
beginning of the periods indicated and that the Issuers owned Portilla and Happy
during the period from March 21, 1996 to September 30, 1996.

   
      The Unaudited Pro Forma  Condensed  Balance Sheet reflects the preliminary
allocations of the purchase prices for the Recent Acquisitions to the assets and
liabilities of the Company. The final allocation of the purchase prices, and the
resulting  effect  on DD&A  expense  in the  accompanying  unaudited  Pro  Forma
Statements of Operations, will differ from the preliminary estimates because the
final  allocation  will be based on  purchase  prices  allocated  to assets  and
liabilities  on the  basis  of the  estimated  fair  values  of the  assets  and
liabilities  determined  at the  end of the  allocation  period  as  allowed  by
Accounting Principles Board Opinion No. 38.

      The unaudited pro forma financial data should be read in conjunction  with
the notes thereto, the Consolidated  Financial Statements of the Company and the
notes thereto and the  historical  financial  information  and the notes thereto
relating  to CGGS,  the  Wyoming  Properties  and the  Portilla  Field  included
elsewhere in this Prospectus.
    

      The unaudited pro forma financial data are not indicative of the financial
position or results of  operations  of the Company  which  would  actually  have
occurred if the Transactions had occurred at the dates presented or which may be
obtained in the future. In addition,  future results may vary significantly from
the results reflected in such statements due to normal crude oil and natural gas
production  declines,  reductions  in prices paid for crude oil and natural gas,
future acquisitions and other factors.



<PAGE>
<TABLE>
<CAPTION>


                   UNAUDITED PRO FORMA STATEMENT OF OPERATIONS
                      For the Year Ended December 31, 1995


                  Historical                  Acquisitions
                  ----------- -----------------------------------------------
                                                                   East White   Adjustment       
                  Abraxas                                          Point and     to Reflect   Acquisition
                  Petroleum               Wyoming                  Stedman       Sale of      and Offering
                  Corporation   CGGS     Properties   Portilla(1)  Island(2)     Nevis (a)     Adjustments    Pro Forma             
                 ----------- ---------- -----------  -----------  ----------   -----------   -------------   ----------
                                            (dollars in thousands)
<S>                 <C>        <C>      <C>           <C>          <C>          <C>            <C>             <C>     
Operating revenue:
   Oil and gas
    production      $ 13,660   $ 13,849 $  7,542      $  3,676     $  2,062     $     --       $    --         $ 40,789
   Processing            -       24,072      --           --           --         (20,012)          --            4,060
   Rig revenue           108        -        --           --           --             --            --              108
   Other                  49        690      --           --           --             --            --              739
                  ----------   --------- --------     --------       -------     --------       --------       --------
Total operating
  revenue             13,817     38,611    7,542         3,676        2,062       (20,012)          --           45,696

Operating costs
and expenses:
   LOE                 4,333      4,137    2,142           835          475           --            --           11,922
   Processing           --       10,737      --            --          --          (9,501)          --            1,236
   DD&A                5,434     10,003      --            --          --          (3,672)        9,327 (b)      21,092
   Rig operations        125       --        --            --          --             --            --              125
   G&A                 1,042      3,257      --            --          --          (1,173)         (534)(c)       2,592
                  ----------   --------- --------     --------       -------     --------       --------       --------
Total operating
  expenses            10,934     28,134    2,142           835          475       (14,346)        8,793          36,967
                  ----------   --------- --------     --------       -------     --------       --------       --------
Operating Income       2,883     10,477    5,400         2,841        1,587        (5,666)       (8,793)          8,729

Other(income)expense:
  Interest incom e       (34)       (82)     --            --          --           --              --             (116)
  Amortization of
  deferred financing
  fee                    214        106      --            --          --           --              705(d)        1,025
  Interest expense     3,911     11,822      --            --          --          (5,782)       14,325(e)       24,276
  Unrealized foreign
  exchange gain         --         (795)     --            --          --           --              795(f)         --
  Realized foreingn
  exchange loss         --           44      --            --          --           --               --              44
                  ----------   --------- --------     --------       -------     --------       --------       --------
Income(loss)
 before tax           (1,208)      (618)   5,400         2,841        1,587           116       (24,618)        (16,500)
Income tax(benefit):
   
   Current              --          224      --            --          --            (128)           --              96
   Deferred             --          --       --            --          --           --             (679)(g)        (679)
                  ----------   --------- --------     --------       -------     --------       --------       --------
    

Net income(loss)    $ (1,208)  $   (842) $ 5,400      $  2,841     $  1,587     $     244      $(23,939)       $(15,917)

Less dividend
requirement on
cumulative preferred
stock                   (366)      --       --             --         --             --             --             (366)
                  ----------   --------- --------     --------       -------     --------       --------       --------
Net income  (loss)
available to common
stockholders        $ (1,574)  $   (842) $ 5,400      $  2,841    $  1,587      $     244      $(23,939)       $(16,283)
                  ==========   ========= ========       ========    ========     ========       ========       ========

Earnings (loss)
per share:          $ (0.34)   $   --    $  --        $    --     $    --       $    --        $    --         $  3.51)
                  ==========  ========== ========       ========    ========     ========       ========       ========

Other data:
   EBITDA           $  8,351   $ 20,518  $ 5,400      $  2,841    $  1,587      $ (9,338)      $    534        $ 29,893
                  ==========  ========== ========       ========    ========     ========       ========       ========
</TABLE>
- -------------
(1) The data for Portilla reflects that portion of Portilla  previously owned by
the Pension Fund.
(2) The data for East White Point and Stedman  Island  reflects  that portion of
East White Point and Stedman Island previously owned by the Pension Fund.

See notes to unaudited pro forma financial statements.


<PAGE>


<TABLE>
<CAPTION>
                  UNAUDITED PRO FORMA STATEMENT OF OPERATIONS
                  For the Nine Months Ended September 30, 1996

                    Historical                  Acquisitions
                    ----------- -----------------------------------------------
                                                                       East White    Adjustment       
                    Abraxas                                          Point and     to Reflect   Acquisition
                    Petroleum               Wyoming     Portilla &    Stedman      Sale of      and Offering
                    Corporation   CGGS     Properties   Happy (h)      Island      Nevis (a)     Adjustments    Pro Forma           
                   ----------- ---------- -----------  -----------  ----------   -----------   -------------   ---------
                                              (dollars in thousands)
<S>                 <C>         <C>         <C>          <C>        <C>           <C>            <C>            <C>     
Operating revenue:
   Oil and gas  
    production      $ 11,786    $ 12,246    $  7,280     $  5,232   $   2,359     $     --       $     --       $ 38,903
   Processing           --        20,279        --           --            --        (17,214)          --          3,065
   Rig revenue           106        --          --           --            --           --             --            106
   Other                  17         160        --           --            --           --             --            177
                   ----------- ---------- -----------  -----------  ----------    -----------   -----------     --------
 Total operating
  revenue             11,909      32,685       7,280        5,232       2,359        (17,214)          --         42,251

 Operating costs
 and expenses:
    LOE                3,296       2,920       1,844        1,086         404           --             --         9,550
    Processing          --        11,289        --           --           --         (10,097)          --         1,192
    DD&A               4,145       7,722        --           --           --          (3,098)        8,895 (b)   17,664
    Rig operations       113        --          --           --           --            --             --           113
    G&A                1,250       2,156        --           --           --            (481)         (380)(c)    2,545
    Hedging loss         511        --          --            370         --            --             --           881
                   ----------- ---------- -----------  -----------  ----------    -----------   -----------     --------
Total operating
 expense               9,315      24,087      1,844         1,456         404        (13,676)        8,515       31,945
                   ----------- ---------- -----------  -----------  ----------   -----------   -----------      --------
Operating income       2,594       8,598      5,436         3,776       1,955         (3,538)       (8,515)      10,306

 Other (income)
 expense:
    Interest income     (156)       (226)      --            --           --            --             --         (382)
    Amortization
     of deferred 
     financing fee       192          80       --            --           --            --             497(d)      769
    Interest expense   2,142       8,870       --            --           --          (4,255)       11,394(e)   18,151
    Minority interest     58        --         --            --           --            --             --           58
    Unrealized foreign
     exchange gain       --       (2,070)      --            --           --            --           2,070(f)      --
    Realized foreign                       
     exchange gain       --          (51)      --            --           --            --             --          (51)             
    Loss on
     Securities          235        --         --            --           --            --             --          235
                  ----------- ---------- -----------  -----------  ----------    -----------   ------------    --------
 Income (loss) 
  before tax             123       1,995      5,436         3,776      1,955            717        (22,476)     (8,474)
 Income Tax (benefit):
     Current              --         190       --            --           --            (89)           --          101
     Deferred             --       --          --            --           --            --            (541)(g)    (541)
                  ----------- ---------- -----------  -----------  ----------    -----------   ------------    --------
 Net income (loss)
  excluding 
  extraordinary
  items                  123       1,805      5,436         3,776      1,955            806        (21,935)     (8,034)
 Less dividend
  requirement on        
  cumulative
  preferred stock       (274)       --         --             --          --            --             --         (274)
                  ----------- ---------- -----------  -----------  ----------    -----------   ------------    --------
 Net income  (loss)
  available to 
  common
  stockholders      $   (151)   $  1,805    $  5,436     $  3,776   $  1,955      $     806      $ (21,935)    $(8,308)
                  =========== ========== ===========  ===========  ==========    ===========   ===========     ========   
 Earnings (loss) 
  per share         $  (0.03)                                                                                  $ (1.54)
                  ===========                                                                                  ========             

 Other data:
    EBITDA          $  6,895    $ 16,597    $  5,436    $  3,776   $   1,955      $  (6,636)     $    380      $28,403
                  =========== ========== ===========  ===========  ==========    ===========   ===========     ========
</TABLE>
- -------------
See notes to unaudited pro forma financial statements.

                                       39
<PAGE>

<TABLE>
<CAPTION>

                   UNAUDITED PRO FORMA CONDENSED BALANCE SHEET
                            As of September 30, 1996

                                Historical        Acquisitions       
                                ------------  --------------------     Acquisition
                                                       Adjustments     Adjustments
                                  Abraxas              to Reflect     Portilla and      
                                 Petroleum              Sale of      East White Point     Offering
                                Corporation    CGGS     Nevis(a)    and Stedman Island   Adjustments   ProForma                     
                                ------------ --------  -----------  ------------------  ------------  ----------
                                            (dollars in thousands)
  <S>                              <C>          <C>       <C>             <C>              <C>            <C>     
  Assets:
  Cash                           $ 9,993      $ 7,495   $   87,000      $ (84,412) (b)   $ (8,590) (f)  $ 11,486
  Accounts receivable              3,965       10,099       (5,769)          --              --            8,295
  Other                              280         --           --             --              --              280
                                 --------     --------  -----------    -----------       ---------      ---------
  Total current assets            14,238       17,594       81,231        (84,412)         (8,590)        20,061

  Property and equipment:
    Oil and gas properties       111,104       12,769         --           49,336  (b)       --
                                                                           29,022  (d)       --
                                                                            8,771  (e)       --          211,002
    Processing facilities           --         78,860      (50,790)        18,190  (b)       --           46,260
    Other property and
      equipment                      872        --            --            3,600  (b)       --            4,472
  Investment and advances
      to partnership               2,397        --            --           (2,397) (d)       --              --
  Deferred financing fees            971          992         --              223  (d)      8,200 (f) 
                                                                             (992) (b)       (223)(b)      9,171
  Other assets                       858        --            --             --                              858
                                --------     --------  -----------    -----------        ---------      ---------
  Total assets                  $130,440     $110,215  $    30,441     $   21,341         $  (613)      $291,824
                                ========     ========  ===========    ===========        =========      =========

  Liabilities and
    stockholders' equity:

   
  Total current liabilities    $ 6,556       $  5,586  $   (2,050)     $   (2,135) (b)    $    --       $  7,957
    
  Long-term debt:
     Financing agreement        85,000            --          --              --             (85,000)(f)     --
     CGGS debentures              --           84,412         --          (84,412) (b)         --            --
  Acquisition debt:
     CGGS shareholders            --              --          --           94,771  (b)       (94,771)(f)     --
     Portilla                     --              --          --           26,848  (d)       (26,848)(f)     --
     East White
       Point/Stedman              --              --          --            8,771  (e)        (8,771)(f)     --
     Notes                        --              --          --              --             215,000 (f) 215,000
  Other liabilities                124          3,834      (1,664)            --               --          2,294
  Deferred  income taxes           187            --          --           28,036  (b)         --         28,223
  Minority interest              2,153            --          --              --               --          2,153
  Shareholders' equity:
     Preferred stock              --              --          --              --               --            --
     Common stock                   58         25,296         --          (25,296) (c)         --             58
     Additional paid in 
       capital                  50,920            --          --              --               --         50,920
     Retained earnings 
       (deficit)               (14,184)        (8,672)     34,155         (25,483) (c)          (223)(g) (14,407)
     Cumulative foreign
       exchange adjustment        --             (241)        --              241  (c)         --            --
        exchange
     Treasury stock               (374)           --          --              --               --           (374)
                              ---------      ---------   ---------     -----------         ---------    ---------
  Total stockholders' equity    36,420         16,383      34,155         (50,538)             (223)      36,197
                              ---------      ---------   ---------     -----------         ---------    ---------
  Total liabilities and
     Stockholders' equity     $130,440       $110,215     $30,441       $  21,341           $  (613)    $291,824
                              =========      =========   =========      ==========         =========    =========
</TABLE>
- -------------
See notes to unaudited pro forma financial statements.


<PAGE>


                                                    
                NOTES TO UNAUDITED PRO FORMA FINANCIAL STATEMENTS

Note 1. The pro forma  unaudited  Statements of Operations for the periods ended
December  31,  1995 and  September  30,  1996  reflect  the  Transactions  as if
consummated on January 1, 1995 and January 1, 1996, respectively:

a. To adjust for the sale of the Nevis Plant prior to the  Issuers'  acquisition
of CGGS.

   The  reduction  in G&A expense  represents  the  contractual  management  and
administrative  fee paid to the  operator  related  to the  results of the Nevis
Plant,  net of overhead  recoveries  charged to third parties for  processing of
natural gas.

   The  reduction in interest  expense  relates to the repayment of a portion of
the debentures  issued by CGGS in connection  with its  acquisition of the Nevis
Plant.

b. To adjust DD&A  expense for the year ended  December  31, 1995 to reflect the
acquisition of CGGS, the Wyoming Properties, the 50% overriding royalty interest
in Portilla  previously owned by the Pension Fund and the 50% overriding royalty
interest  in East White  Point and Stedman  Island for the twelve  months  ended
December 31, 1995 and to adjust DD&A expense for the nine months ended September
30, 1996 to reflect  the  acquisitions  of CGGS,  the  Wyoming  Properties,  the
reacquisition  of Portilla  and Happy for the period March 21, 1996 to September
30, 1996, the  acquisition of the 50%  overriding  royalty  interest in Portilla
previously  owned by the Pension  Fund for the nine months ended  September  30,
1996 and the 50%  overriding  royalty  interest  in East White Point and Stedman
Island for the nine months ended  September 30, 1996.  DD&A expense of crude oil
and natural gas  properties is computed  using the units of  production  method.
Depreciation of natural gas processing facilities is computed using the straight
line method over the estimated useful life of 18 years.

c.    To adjust G&A expense of CGGS to reflect the following:

                                                       Fiscal      Nine Months
                                                        1995          Ended
                                                                  September 30,
                                                                      1996
                                                      ---------  ---------------
                                                       (dollars in thousands)
Reversal of management and administrative
  fees paid to third party                            $(1,649)         $(1,340)
Additional expenses relating to salaries
  and benefits, office rent and other G&A               1,115              960
                                                       -------          ------
                                                       $ (534)           $(380)
                                                       -------          ------

d. To adjust the amortization of the deferred  financing fee for the First Union
Credit  Facility  and the  repayment  of the  CGGS  debentures  and the fees and
expenses related to the issuance of the Notes.

e. To adjust  interest  expense  using a rate of 11.5% for the  issuance  of the
Notes and to reflect the repayment of the Bridge  Facility and the retirement of
the CGGS debentures.

f. To adjust the foreign  exchange gain realized by CGGS with respect to certain
U.S. dollar-denominated debentures.

g.    To reflect the deferred tax benefit.

                                        Year Ended         Nine Months
                                     December 31, 1995        Ended
                                                          September 30,
                                                               1996
                                     ------------------  -----------------
                                          (dollars in thousands)
Deferred tax benefit                       $679                $541
                                           ====                ====



<PAGE>


h. The  following  reflects  the  results of  operations  of the 50%  overriding
royalty  interest in Portilla  previously owned by the Pension Fund for the nine
months  ended  September  30,  1996 and the  results  from  Portilla  and  Happy
previously  owned by the Issuers for the period March 21, 1996 to September  30,
1996:
<TABLE>
<CAPTION>

                                       Certain
                                      Overriding
                                       Royalty
                                     Interests in     
                                     the Portilla     
                                    Field Acquired    
                                      by Abraxas       Portilla and Happy
                                      Petroleum        previously owned
                                     Corporation        by the Company
                                     for the Nine       for the period         Portilla
                                     Months Ended      March 21, 1996 to         and
                                  September 30, 1996   September 30, 1996       Happy
                                  ------------------   ------------------    ----------
                                            (dollars in thousands)
<S>                                <C>                    <C>                  <C>    
Oil and gas production sales       $        2,822         $   2,410            $ 5,232
   
LOE                                          (622)             (464)            (1,086)
Hedging loss                                   --              (370)              (370)
    
                                  ==================   ==================    ==========
                                                $                 $   $
                                  $         2,200        $    1,576            $ 3,776
                                  ==================   ==================    ==========
</TABLE>

Note 2. The pro forma  unaudited  Condensed  Balance  Sheet as of September  30,
1996, reflects the Transactions as if they had occurred as of September 30, 1996
as follows (the  acquisition of the Wyoming  Properties  closed on September 30,
1996,  and is  reflected  in the  historical  balance  sheet of the  Company  at
September  30,  1996  the  acquisitions  of CGGS and  Portilla  and  Happy  were
consummated  on November  14, 1996 and the  acquisition  of East White Point and
Stedman Island was consummated on November 27, 1996):

a. Canadian Abraxas purchased all of the outstanding  shares of capital stock of
CGGS and  immediately  thereafter  merged CGGS with and into  Canadian  Abraxas.
Prior to the Canadian Abraxas' acquisition of CGGS, the Nevis Plant was sold and
Canadian Abraxas, as the surviving entity of the CGGS acquisition,  used the net
proceeds from the sale of the Nevis Plant to retire the  outstanding  debentures
of CGGS. The CGGS balance sheet included in the accompanying Unaudited Pro Forma
Condensed Balance Sheet dated as of September 30, 1996 represents the historical
unaudited  balance sheet of CGGS as of October 31, 1996,  converted  into United
States  generally  accepted  accounting  principles and into U.S.  dollars.  The
balances  included in the  "Adjustments  to Reflect Sale of Nevis" column on the
accompanying  Unaudited Pro Forma Condensed  Balance Sheet represent the sale of
the Nevis Plant and related accounts  receivable and payable at a sales price of
approximately  CDN$116.1  million,  net of estimated  selling  costs and related
closing adjustments,  or approximately U.S.$87.0 million, and the removal of the
historical  net book value of the Nevis Plant and the working  capital and other
liabilities  associated with the operations of the Nevis Plant as of October 31,
1996.  Retained  earnings  represent the  approximate  gain from the sale of the
Nevis Plant.

b. The  acquisition  of CGGS was accounted for as a purchase in accordance  with
Accounting Principles Board Opinion No. 16 "Business Combinations." The purchase
price was allocated to the crude oil and natural gas properties, the natural gas
processing  plants and other assets based upon estimated fair values. A deferred
income tax liability  has been  established  representing  the tax effect of the
difference  in the fair value of the assets  acquired and their  historical  tax
basis and has been  allocated as  additional  basis of the crude oil and natural
gas properties, the natural gas processing plants and other assets.

                                                                (dollars in
                                                                thousands)
   The total purchase price has been allocated as follows:
      Purchase  price for the  outstanding  capital stock of           
   
      CGGS including amounts  paid for working capital                 $94,771
    

      Book value of net assets acquired                                 49,546
                                                                     ==========
   Increase in basis                                                   $45,225
                                                                     ==========



<PAGE>



   Allocation of increase in basis:
      Increase in crude oil and natural gas properties                 $49,336
      Increase in natural gas processing facilities                     18,190
      Increase in other property and equipment                           3,600
               Deferred financing fee                                    (992)
      Change in accounts payable                                         3,127
      Change in deferred tax liabilities                              (28,036)
                                                                     ==========
                                                                       $45,225
                                                                     ==========

   Retirement of CGGS debentures:
      Cash                                                           $ (84,412)
      CGGS debentures                                                   84,412

c. To reflect the elimination of CGGS equity balance:

   Common stock                                                        $25,296
   Retained earnings                                                    25,483
   Cumulative foreign exchange adjustment                                 (241)

d.    To reflect the purchase of Portilla and Happy:

   Purchase price of Portilla and Happy                               $ 27,600
   Estimated  adjustments  to purchase  price for accrual of
    net crude oil and natural gas revenues to November 14, 1996           (752)
                                                                     ----------
   Net amount due to seller                                             26,848
   Elimination  of the  Issuers'  equity  investment  in and 
    advances to the partnership                                          2,397
   Deferred financing fee related to debt repaid                          (223)
                                                                     ==========
   Net purchase price allocated to oil and gas properties              $29,022
                                                                     ==========

      Acco  entered  into a  commodity  price hedge with  Christiania  which was
assumed  by the  Company  and  BTCo  and ING  Capital  in  connection  with  the
consummation of the Transactions. Under the terms of this commodity price hedge,
the Company is required to receive or make payment to BTCo and ING Capital based
on a  differential  between a fixed and variable price for crude oil and natural
gas through the last business day of November 2001 on volumes ranging from 8,160
barrels of crude oil to 20,000  barrels of crude oil per month and 14,850  MMBTU
of natural gas to 87,406 MMBTU of natural gas per month.  Under this  agreement,
the Company receives fixed prices ranging from $17.20 per barrel of crude oil to
$18.55 per barrel of crude oil and $1.793 per MMBTU of natural gas to $1.925 per
MMBTU of  natural  gas and makes  payments  based on the  price  for west  Texas
intermediate  light  sweet  crude oil on the NYMEX for crude oil and the  Inside
FERC, Tennessee Gas Pipeline Co: Texas (Zone 0) price for natural gas. Currently
there is a net unrealized loss of approximately $1.8 million under the commodity
price hedge.

e. To reflect  the  purchase of East White Point and Stedman
Island

   Purchase price of East White Point and Stedman Island                 $9,271
   Estimated  adjustment  to  purchase  price for accrual of
      net  crude oil and  natural  gas  revenues  due to the
      Company from August 1996 to November 1996                            (500)
                                                                     ===========
   Net purchase price allocated to oil and gas properties.               $8,771
                                                                     ===========



<PAGE>



f.    To reflect the  issuance of Notes and  application  of
the proceeds
       therefrom:

   Issuance of Notes                                                  $215,000
   Expense for issuance of Notes                                        (8,200)
   Repayment of the Bridge Facility                                    (85,000)
   Payment of amount due to CGGS                                       (94,771)
   Payment of amounts due to seller of Portilla and Happy              (26,848)
   Payment of amounts  due to seller of East White Point and
      Stedman Island                                                    (8,771)
                                                                     -----------
   Decrease in existing cash                                          $ (8,590)
                                                                     ===========

g. To reflect the write-off of deferred  financing fees upon
retirement of certain related debt                                       $(223)
                                                                     ===========


<PAGE>


================================================================================
                      SELECTED CONSOLIDATED FINANCIAL DATA
================================================================================

      The following historical selected consolidated  financial data are derived
from,  and  qualified  by reference  to, the  Company's  Consolidated  Financial
Statements and the notes thereto.  The statement of operations data for the nine
months ended September 30, 1996 is not  necessarily  indicative of results for a
full year.  The  consolidated  financial data for each of the nine month periods
ended  September  30, 1995 and 1996 are  derived  from the  unaudited  financial
statements and, in the opinion of management,  include all adjustments  that are
of a normal and  recurring  nature and necessary  for a fair  presentation.  The
historical  consolidated  financial data should be read in conjunction  with the
Consolidated  Financial Statements of the Company and the notes thereto included
elsewhere  in this  Prospectus  and  "Management's  Discussion  and  Analysis of
Financial Condition and Results of Operations."
<TABLE>
<CAPTION>

                                                                             Nine Months Ended
                                   Year Ended December 31,                    September 30,
                           ----------------------------------------------   -------------------
                            1991    1992   1993         1994       1995      1995    1996
                           ------- ------- ------      -------    -------   ------- -----------
Consolidated    Statements         (dollars in thousands except per share data)
    of Operations
<S>                        <C>       <C>      <C>          <C>        <C>       <C>     <C>    
Operating revenue:
Oil  and  gas   production
  sales                    $  933    $ 2,666  $ 7,275      $11,114    $13,660   $9,795  $11,786
Other revenue                 217         25      219          235        157      134      123
                           ------    -------   ------      -------    -------   -------  ------
Total operating revenue     1,150      2,691    7,494       11,349     13,817    9,929   11,909
                           ------    -------   ------      -------    -------   -------  ------
Operating costs and
    expenses:
Lease operating and 
    production taxes          322     1,075    2,896        3,693      4,333    3,183    3,296
Depreciation, depletion
    and amortization          361       957    2,373        3,790      5,434    3,541    4,145
General and administrative
    expenses                  338       770      510          810      1,042      768    1,250
Other                          73       (29)     103          133        125       95      624
                           ------    -------   ------      -------    -------   -------  ------
Total Operating expenses    1,094     2,773    5,882        8,426     10,934    7,587    9,315
                           ------    -------   ------      -------    -------   -------  ------                            
Operating income (loss)        56       (82)   1,612        2,923      2,883    2,342    2,594
Net interest expense          121       892    2,492        2,343      3,877    2,907    1,986
Amortization  of  deferred
    financing fees (1)        --         --      649          400        214      120      192
Other (income) expense        (50)       98     (136)          67         --       --      293
                           ------    -------   ------      -------    -------   -------  ------
Income (loss) from
    continuing operations
    before tax and 
    extraordinary items       (15)   (1,072)  (1,393)         113     (1,208)    (685)     123
Deferred income tax 
   expense                     --        --     (187)          --        --        --       --
Loss from discontinued
    operations (2)             - -   (2,883)    (280)      (1,335)       --        --       --
                           ------    -------   ------      -------    -------   -------  ------
Income (loss) before
    extraordinary items       (15)   (3,955)  (1,860)      (1,222)    (1,208)    (685)     123
Extraordinary items            --       --      (573)(3)   (1,172)(3)    --        --     (369) (3)
                           ------    -------   ------      -------    -------   -------  ------
Net income (loss)             (15)   (3,955)  (2,433)      (2,394)    (1,208)    (685)    (246)
Preferred dividends
    requirement              (249)     (249)    (186)        (183)      (366)    (274)    (274)
                           -------   -------   ------      -------    -------   -------  ------
Net income (loss)
    applicable to
    common stockholders'    $(264)  $(4,204) $(2,619)     $(2,577)   $(1,574)  $ (959)   $(520)
                           =======   =======  =======      =======    =======   =======  ======

Earnings per share:
Income (loss) from
    continuing operations   $(0.28) $(1.23) $  (0.91)     $ (0.02)   $ (0.34   $(0.21)   $(0.03)
                           =======   ======  ========      =======    =======   ======   ======= 
Discontinued operatios        --     (2.69)    (0.14)       (0.31)       --        --       --
Extraordinary items           --       --      (0.29)       (0.27)       --        --     (0.06)
                           -------   ------  --------      -------    -------   ------   -------
Net income (loss) per
    common share            $(0.28) $(3.92) $  (1.34)     $ (0.60)   $ (0.34)  $(0.21)   $(0.09)
                           =======   ======  ========      =======    =======   =======  =======
Weighted   average  shares
    outstanding                947   1,074     1,947        4,310      4,635    4,456     5,804
                           =======   ======  ========      =======    =======   =======  =======
Other Data:
EBITDA                      $  168    $760  $  4,049      $ 6,728    $ 8,351   $5,892    $ 6,894
Capital expenditures       $2,940  $7,866  $ 26,234      $40,906    $12,256   $9,223    $58,040

</TABLE>


<PAGE>
<TABLE>
<CAPTION>



                                       At December 31,                 At September 30,
                           -----------------------------------------  ------------------
                            1991     1992    1993    1994      1995     1995     1996
                           -------  ------- ------- --------  ------- --------- --------
                                             (dollars in thousands)

Consolidated  Balance
    Sheet Data:
<S>                       <C>      <C>      <C>      <C>       <C>     <C>      <C>     
Working capital (deficit) $(1,323) $(7,184) $(1,368) $(1,605)  $2,633  $(2,465) $  7,682
    (4)
   
Total assets               13,078   18,017   43,396   75,361   85,067   80,578   130,440
Long-term debt (5)          7,080    6,602   12,484   41,235   41,557   43,974    85,000
Stockholders' equity        3,869    2,233   25,143   28,502   37,063   27,546    36,421
    
</TABLE>
- -----------

(1) Consists of financing  fees incurred in connection  with the  acquisition of
    crude oil and natural gas producing properties.
(2) Discontinued  operations  consist  primarily of coal  operations  which were
    terminated  in January 1995.  The Company  anticipates  no additional  costs
    associated with coal operations in the future. See "Management's  Discussion
    and Analysis of Financial  Condition and Results of Operations -- Results of
    Operations."
(3) Consists of loss incurred in connection with extinguishment of debt.
(4) Includes current maturities of long-term debt and capital lease obligations.
(5) Excludes current maturities of long-term debt and capital lease obligations.


<PAGE>


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  FINANCIAL CONDITION AND RESULTS OF OPERATIONS

   
      The  following  is a  discussion  of the  Company's  financial  condition,
results of operations,  liquidity and capital resources.  This discussion should
be read in conjunction with the Consolidated Financial Statements of the Company
and the notes thereto included elsewhere in this Prospectus.
    

Results of Operations

      The  Company's  revenue,  profitability  and  future  rate of  growth  are
substantially dependent upon prevailing prices for crude oil and natural gas and
the volumes of crude oil,  natural  gas and NGLs  produced  by the  Company.  In
addition,  the  Company's  proved  reserves  will decline as crude oil, NGLs and
natural gas are produced unless the Company is successful in acquiring producing
properties or conducts successful exploration and development activities.

   
      Selected  Operating Data. The following table sets forth certain operating
data of the Company for the periods presented:
    

                                                              Nine Months
                                                                 Ended
                                   Years Ended December 31,  September 30,
                                   ------------------------------------------
                                     (dollars in thousands, except per unit
                                                     data)

                                    1993    1994       1995    1995       1996
                                    ----    ----       ----    ----       ----
Operating revenue:
     Crude oil sales             $ 4,210  $  5,501  $  6,889 $ 4,887  $   5,306
     NGLs sales                      500     1,193     1,553   1,165      1,350
     Natural gas sales             2,565     4,420     5,218   3,743      5,130
     Other                           219       235       157     134        123
                                  ------  --------  -------- -------   --------
Total operating revenue          $ 7,494  $ 11,349  $ 13,817 $ 9,929  $  11,909
                                 =======  ========  ======== =======   ========

Operating income                 $ 1,612  $  2,923   $ 2,883 $ 2,342   $  2,595
Crude oil production (MBbls)       270.9     355.7     401.4    283.5     266.0
NGLs production (MBbls)             33.9     113.2     143.4    106.5     106.1
Natural gas production (MMcf)      985.4   2,392.9   3,552.7  2,645.1   2,625.4

Average   crude  oil  sales 
  prices (per Bbl)               $ 15.54  $  15.47   $ 17.16 $ 17.24   $  19.94
Average NGLs sales price
 (per Bbl)                       $ 14.75  $  10.54    $10.83 $ 10.94   $  12.73
Average  natural  gas  sales
  prices (per Mcf)               $ 2.60   $   1.85    $ 1.47 $  1.41   $   1.95

Comparison  of Nine  Months  Ended  September  30,  1996 to  Nine  Months  Ended
September 30, 1995

      Operating Revenue.  Operating revenue from crude oil, NGLs and natural gas
sales  increased  by 20.3%,  from $9.8 million to $11.8  million,  from the nine
months ended  September  30, 1995 to the nine months ended  September  30, 1996,
primarily due to an increase in crude oil, NGLs and natural gas sales prices and
increased  production volumes from the Company's  properties other than Portilla
and  Happy  in 1996 as  compared  to 1995  which  somewhat  offset  the  loss in
production  volumes from the sale of Portilla and Happy.  Operating revenue from
Portilla  and Happy  decreased  from $3.3  million to $1.2 million from the nine
months ended September 30, 1995 to the nine months ended September 30, 1996. The
Company's  average  sales  prices for its crude oil,  NGLs and  natural gas were
$17.24 per Bbl,  $10.94 per Bbl and $1.41 per Mcf,  respectively,  for the first
nine months of 1995 as compared to $19.94 per Bbl,  $12.73 per Bbl and $1.95 per
Mcf,  respectively,  for the first nine months of 1996. Crude oil and NGLs sales
volumes decreased by 4.6%, from 390.0 MBbls to 372.1 MBbls, from the nine months
ended September 30, 1995 to the nine months ended September 30, 1996 and natural
gas sales volumes decreased by 0.7%, from 2,645.1 MMcf to 2,625.4 MMcf, from the
nine months ended September 30, 1995 to the nine months ended September 30, 1996
as a result of the sale of Portilla and Happy.  Portilla  and Happy  contributed
161.8  MBbls of crude oil and NGLs  (41.5% of  Company  total) and 376.0 MMcf of
natural  gas (14.2% of Company  total)  during the first nine  months of 1995 as
compared to 54.2 MBbls of crude oil and NGLs (14.6% of Company  total) and 117.5
MMcf of natural gas (4.5% of Company total) for the first nine months of 1996.

      Lease Operating Expenses. LOE increased by 3.6%, from $3.2 million to $3.3
million,  from the first nine  months of 1995 to the first nine  months of 1996,
primarily due to the  increased  percentage  of the  Company's  production  base
attributable  to west Texas crude oil production than that from Texas Gulf Coast
properties,  which generally have lower LOE than the west Texas  properties.  Of
the LOE incurred during the first nine months of 1995, $445,000, or 14.0% of the
Company's  total LOE, was  attributable  to Portilla  and Happy,  as compared to
$233,000,  or 7.1% of the Company's  total LOE,  during the first nine months of
1996. The Company's LOE on a per BOE basis for the first nine months of 1995 was
$3.83 per BOE as compared to $4.07 per BOE for the first nine months of 1996.

   
      G&A  Expenses.  G&A  expenses  increased by 62.7%,  from  $769,000 to $1.2
million,  from the first nine  months of 1995 to the first nine  months of 1996,
primarily as a result of hiring additional staff to manage the Company's assets,
including the establishment of a Canadian  administrative  office. The Company's
G&A expenses on a per BOE basis for the first nine months of 1995 were $0.93 per
BOE as compared to $1.54 per BOE for the first nine months of 1996.
    

      DD&A Expenses. DD&A increased by 17.1%, from $3.5 million to $4.2 million,
from the first nine  months of 1995 to the first nine  months of 1996  primarily
due to the increase in sales volumes of crude oil and natural gas. The Company's
DD&A  expenses  on a per BOE basis for the first nine  months of 1995 were $4.27
per BOE as compared to $5.27 per BOE for the first nine months of 1996.

      Interest Expense and Preferred  Dividends.  Interest expense and preferred
dividends  decreased  24.2%,  from $3.2 million to $2.4 million,  from the first
nine  months  of 1995 to the  first  nine  months  of  1996.  The  decrease  was
attributable  to the sale of Portilla  and Happy,  part of the proceeds of which
were used to reduce the  indebtedness  outstanding  under the First Union Credit
Facility by $12.0 million to $29.5 million.

Comparison of Year Ended December 31, 1994 to Year Ended December 31, 1995

      Operating Revenue.  Operating revenue from crude oil, NGLs and natural gas
sales  increased by 22.9%,  from $11.1 million to $13.7  million,  from the year
ended December 31, 1994 to the year ended  December 31, 1995.  This increase was
primarily  attributable  to an increase  in crude oil and NGLs sales  volumes of
16.2%,  from 468.9  MBbls to 544.8  MBbls,  and an increase in natural gas sales
volumes of 48.5%,  from  2,392.9  MMcf to 3,552.7  MMcf.  The  increase in sales
volumes were primarily  attributable to the acquisition of 80% of the overriding
royalty interest previously granted to a lender (the "ORRI") and the acquisition
of certain properties located in west Texas (the "West Texas Properties") by the
Company in June 1994 and July 1994,  respectively.  The Company's  average sales
prices for its crude oil,  NGLs and natural gas were $15.47 per Bbl,  $10.54 per
Bbl and $1.85 per Mcf,  respectively,  for the year ended  December  31, 1994 as
compared to $17.16 per Bbl, $10.83 per Bbl and $1.47 per Mcf, respectively,  for
the year ended  December 31, 1995. A general  weakening of natural gas prices at
the wellhead  during the first nine months of 1995  resulted in a lower  average
natural gas sales price  received by the Company  during the year ended December
31, 1995 as compared to the year ended  December  31,  1994.  This  decrease was
partially  offset by an  increase  in average  crude oil prices  received by the
Company  during the year ended  December  31, 1995 as compared to the year ended
December 31, 1994.

      Lease  Operating  Expenses.  LOE increased by 17.3%,  from $3.7 million to
$4.3 million,  from the year ended  December 31, 1994 to the year ended December
31, 1995, primarily due to the Company's owning a greater number of wells during
the year ended  December 31, 1995 than it did during the year ended December 31,
1994.  The Company's LOE on a per BOE basis for the year ended December 31, 1994
was $4.26 per BOE as compared to $3.81 per BOE for the year ended  December  31,
1995.

      G&A  Expenses.  G&A  expenses  increased by 28.6%,  from  $810,000 to $1.0
million,  from the year ended  December 31, 1994 to the year ended  December 31,
1995 as a result of hiring additional staff to manage and develop the West Texas
Properties.  The  Company's  G&A  expenses on a per BOE basis for the year ended
December  31,  1994 were $0.93 per BOE as compared to $0.92 per BOE for the year
ended December 31, 1995.

      DD&A Expenses. DD&A increased by 43.4%, from $3.8 million to $5.4 million,
from the year ended  December  31,  1994 to the year  ended  December  31,  1995
primarily as a result of the increase in sales  volumes of crude oil and natural
gas. The Company's  DD&A expenses on a per BOE basis for the year ended December
31,  1994 were  $4.37 per BOE as  compared  to $4.78 per BOE for the year  ended
December 31, 1995.

      Interest Expense and Preferred  Dividends.  Interest expense and preferred
dividends increased 68.3%, from $2.5 million to $4.3 million from the year ended
December 31, 1994 to the year ended December 31, 1995,  primarily as a result of
the Company's  borrowing  $28.0 million under the First Union Credit Facility to
acquire the West Texas Properties in July 1994.

Comparison of Year Ended December 31, 1993 to Year Ended December 31, 1994

      Operating Revenue.  Operating revenue from crude oil, NGLs and natural gas
sales  increased  by 52.8%,  from $7.3 million to $11.1  million,  from the year
ended December 31, 1993 to the year ended  December 31, 1994.  This increase was
primarily  attributable  to an increase  in crude oil and NGLs sales  volumes of
53.8%,  from 304.8  MBbls to 468.9  MBbls,  and an increase in natural gas sales
volumes of  142.8%,  from 985.4 MMcf to  2,392.9  MMcf.  The  increase  in sales
volumes was primarily  attributable  to the acquisition of the ORRI and the West
Texas  Properties by the Company in June 1994 and July 1994,  respectively,  the
further development of the Sinton Properties, which were acquired in April 1993,
and the Company's ongoing  development  drilling program.  The Company's average
sales prices for its crude oil, NGLs and natural gas were $15.54 per Bbl, $14.75
per Bbl and $2.60 per Mcf, respectively, for the year ended December 31, 1993 as
compared to $15.47 per Bbl, $10.54 per Bbl and $1.85 per Mcf, respectively,  for
the year ended  December 31, 1994. A general  weakening of natural gas prices at
the wellhead during the year ended December 31, 1994 resulted in a lower average
natural  gas sales  price  received  by the  Company as  compared to the average
natural gas sales price  received by the Issuers  during the year ended December
31, 1993.

      Lease  Operating  Expenses.  LOE increased by 27.5%,  from $2.9 million to
$3.7 million,  from the year ended  December 31, 1993 to the year ended December
31, 1994, primarily due to the Company's owning a greater number of wells during
the year ended  December 31, 1994 than it did during the year ended December 31,
1993.  The Company's LOE on a per BOE basis for the year ended December 31, 1993
was $6.17 per BOE as compared to $4.26 per BOE for the year ended  December  31,
1994.

      G&A Expenses.  G&A expenses increased by 59.0%, from $510,000 to $810,000,
from the year ended  December 31, 1993 to the year ended  December 31, 1994 as a
result of an increase in staff.  The  Company's  G&A expenses on a per BOE basis
for the year ended December 31, 1993 were $1.09 per BOE as compared to $0.93 per
BOE for the year ended December 31, 1994.

      DD&A Expenses. DD&A increased by 59.7%, from $2.4 million to $3.8 million,
from the year ended  December  31,  1993 to the year  ended  December  31,  1994
primarily as a result of the increase in sales  volumes of crude oil and natural
gas. The Company's  DD&A expenses on a per BOE basis for the year ended December
31,  1993 were  $5.06 per BOE as  compared  to $4.37 per BOE for the year  ended
December 31, 1994.

      Interest Expense and Preferred  Dividends.  Interest expense and preferred
dividends  decreased by 6.4%,  from $2.7 million to $2.5 million,  from the year
ended  December 31, 1993 to the year ended  December  31,  1994,  primarily as a
result of the Company's restructuring its long-term debt in June 1994.



<PAGE>


Liquidity and Capital Resources

      Capital  expenditures for the years ended December 31, 1993, 1994 and 1995
were $26.2 million, $40.9 million and $12.3 million,  respectively. For the nine
months ended September 30, 1995, capital expenditures were $9.2 million compared
to $58.0 million  during the same period in 1996. The table below sets forth the
components of these  capital  expenditures  on a historical  basis for the three
years ended December 31, 1993, 1994 and 1995 and the nine months ended September
30, 1995 and 1996.

                                                           Nine Months Ended
                               Year Ended December 31        September 30,
                             ---------------------------  --------------------
                                          (dollars in thousands)

                                1993      1994     1995     1995      1996
                                ----      ----     ----     ----      ----
Expenditure category:
  Property acquisitions (1)   $20,480   $33,597  $   719   $  199  $47,655 (1)
  Development                   5,167     7,151   11,398    8,935   10,016
  Coal property development        46       --       --       --       --
  Facilities and other            541       158      139       89      369
                               ------    ------   ------   ------   ------

    Total                     $26,234   $40,906  $12,256   $9,223  $58,040
                              =======   =======  =======   ======  =======
- ------------
(1) Acquisition costs include approximately 78,000 shares of Common Stock valued
at $533,000 for the year ended December 31, 1993, and 45,741 shares of Preferred
Stock valued at $4.6 million in 1994 and $1.1 million of oil and gas  properties
acquired from Cascade in the nine months ended September 30, 1996.

   
      Acquisitions of crude oil and natural gas producing  properties  beginning
in 1993 and continuing  through the nine months ended September 30, 1996 account
for the majority of the capital  expenditures  made by the Company since January
1, 1993. These expenditures were funded through internally  generated cash flow,
borrowings  from  the  Company's  lenders  and the  issuance  of  shares  of the
Company's Common and Preferred Stock.
    

      After  consummation  of the Offering and  application  of the net proceeds
therefrom,  the Company  increased its total  outstanding  debt to approximately
$215.1  million from $85.0  million at  September  30,  1996.  In  addition,  on
November 14, 1996, the Company entered into the New Credit Facility concurrently
with the  consummation of the Offering.  The New Credit Facility  provides for a
revolving line of credit with an initial availability of $20.0 million,  subject
to certain customary conditions including a borrowing base condition.

      Commitments  available  under  the New  Credit  Facility  are  subject  to
Borrowing Base redeterminations to be performed semi-annually and, at the option
of each of the  Company  and the  Lenders,  one  additional  time per year.  Any
outstanding  principal  balance in excess of the Borrowing  Base will be due and
payable in three equal monthly payments after a Borrowing Base  redetermination.
The Borrowing Base will be determined in the Agent's sole discretion, subject to
the approval of the Lenders, based on the value of the Company's reserves as set
forth in the reserve report of the Company's  independent  petroleum  engineers,
with consideration given to other assets and liabilities.

      The New Credit  Facility has an initial  revolving term of two years and a
reducing period of three years from the end of the initial two-year period.  The
commitment  under the New Credit  Facility will be reduced  during such reducing
period by eleven equal  quarterly  reductions.  Quarterly  reductions will equal
8.2% per quarter with the  remainder due at the end of the  three-year  reducing
period.

      The applicable interest rate charged on the outstanding balance of the New
Credit  Facility is based on a facility usage grid. If the borrowings  under the
New  Credit  Facility  represent  an  amount  less than or equal to 33.3% of the
available  Borrowing  Base,  then the  applicable  interest  rate charged on the
outstanding balance will be either (a) an adjusted rate of the London Inter-Bank
Offered Rate  ("LIBOR")  plus 1.25% or (b) the prime rate of the Agent (which is
based on the Agent's  published prime rate) plus 0.50%. If the borrowings  under
the New Credit  Facility  represent an amount greater than or equal to 33.3% but
less than 66.7% of the available  Borrowing Base,  then the applicable  interest
rate on the outstanding principal will be either (a) LIBOR plus 1.75% or (b) the
prime  rate of the Agent  plus  0.50%.  If the  borrowings  under the New Credit
Facility  represent an amount  greater  than or equal to 66.7% of the  available
Borrowing Base, then the applicable  interest rate on the outstanding  principal
will be either  (a) LIBOR  plus  2.00% or (b) the prime  rate of the Agent  plus
0.50%. LIBOR elections can be made for periods of one, three or six months.

      The New Credit Facility  contains a number of covenants that,  among other
things, restrict the ability of the Company to (i) incur certain indebtedness or
guarantee obligations, (ii) prepay other indebtedness including the Notes, (iii)
make investments, loans or advances, (iv) create certain liens, (v) make certain
payments, dividends and distributions, (vi) merge with or sell assets to another
person or  liquidate,  (vii)  sell or  discount  receivables,  (viii)  engage in
certain intercompany transactions and transactions with affiliates,  (ix) change
its business, (x) experience a change of control and (xi) make amendments to its
charter,  by-laws and other debt instruments.  In addition, under the New Credit
Facility,  the Company is required to comply with specified financial ratios and
tests,  including  minimum debt service coverage ratios,  maximum funded debt to
EBITDA tests, minimum net worth tests and minimum working capital tests.

   
      The New Credit Facility  contains  customary events of default,  including
nonpayment of principal, interest or fees, violation of covenants, inaccuracy of
representations  or warranties in any material respect,  cross default and cross
acceleration to certain other indebtedness,  bankruptcy,  material judgments and
liabilities and change of control.  The Notes also contain a number of covenants
and events of default. See "Description of the Notes."
    

      At September 30, 1996, the Company had current assets of $14.2 million and
current  liabilities  of $6.6  million,  resulting  in  working  capital of $7.6
million.  This compares to working  capital of $2.6 million at December 31, 1995
and a deficiency of $2.5 million at September 30, 1995. The material  components
of the  Company's  current  liabilities  at  September  30, 1996  include  trade
accounts payable of $4.7 million and revenue due third parties of $1.4 million.

   
      The  Company's  current  budget  for  capital  expenditures,   other  than
acquisition  expenditures,  for 1997 is $33.3 million. Such expenditures will be
made primarily for the development of existing  properties.  Additional  capital
expenditures  may be made  for  acquisitions  of  producing  properties  as such
opportunities  arise. The Company does not have an acquisition  budget since the
timing and size of  acquisitions  are difficult to forecast.  The Company has no
material  long-term  capital  commitments and is consequently able to adjust the
level of its expenditures as circumstances dictate.  Additionally,  the level of
capital  expenditures  will  vary  during  future  periods  depending  on market
conditions and other related economic factors.
    

      In August 1995, the Company  entered into a rate swap agreement with First
Union relating to $25.0 million of principal amount  outstanding under the First
Union Credit  Facility.  This  agreement  was assumed by BTCo and ING Capital in
connection  with the  consummation of the Bridge Facility and remains in effect.
Under the  agreement,  the Company  pays a fixed rate of 6.15% while the lenders
under  the  New  Credit   Facility  will  pay  a  floating  rate  equal  to  the
USD-LIBOR-BBA  rate for one month  maturities,  quoted on the  eighteenth day of
each  month,  to  the  Company.  Settlements  are  due  monthly.  The  agreement
terminates  in August 1997 and may be  extended  for an  additional  year by the
Lenders.

      Acco  entered  into a  commodity  price hedge with  Christiania  which was
assumed  by the  Company  and  BTCo  and ING  Capital  in  connection  with  the
consummation of the Transactions. Under the terms of this commodity price hedge,
the Company is required to receive or make payment to BTCo and ING Capital based
on a  differential  between a fixed and variable price for crude oil and natural
gas through the last business day of November 2001 on volumes ranging from 8,160
barrels of crude oil to 20,000  barrels of crude oil per month and 14,850  MMBTU
of natural gas to 87,406 MMBTU of natural gas per month.  Under this  agreement,
the Company receives fixed prices ranging from $17.20 per barrel of crude oil to
$18.55 per barrel of crude oil and $1.793 per MMBTU of natural gas to $1.925 per
MMBTU of natural  gas and will make  payments  based on the price for west Texas
intermediate  light  sweet  crude oil on the NYMEX for crude oil and the  Inside
FERC, Tennessee Gas Pipeline Co: Texas (Zone 0) price for natural gas.

      Operating  activities  during the nine  months  ended  September  30, 1996
provided  $4.8  million of cash to the Company  compared to $1.4  million in the
same period in 1995. Net income plus non-cash  expense items during 1996 and net
changes in operating  assets and liabilities  accounted for most of these funds.
Investing activities required $41.1 million during the first nine months of 1996
primarily from the acquisition of the Wyoming Properties.  This compares to cash
requirements  of $6.5 million  during the same period of 1995  primarily for the
development  of crude  oil and  natural  gas  properties.  Financing  activities
provided  $41.9  million for the first nine months of 1996 compared to providing
$5.3 million for the same period of 1995.

      For the year ended December 31, 1995,  operating  activities provided $4.4
million of cash.  Investing  activities required $10.0 million primarily for the
development  of  existing   properties.   Total  cash  provided  from  financing
activities  for 1995 was $9.8  million  as the  result of the sale of  1,330,000
shares of Common Stock and  contingent  value rights during  November 1995 which
resulted in net proceeds of $10.1 million.

      During 1994, operating activities provided $4.3 million of cash. Investing
activities  during  1994  utilized  $35.9  million  of  cash  primarily  for the
acquisition of the ORRI and the West Texas  Properties for $29.0 million and the
development of producing  properties of $7.2 million. The Company borrowed $40.9
million during 1994,  repaid $12.7 million of long-term  debt, sold Common Stock
for proceeds of $1.5 million and paid  financing fees and dividends on preferred
stock  resulting  in  a  net   contribution  of  $29.2  million  from  financing
activities.

      For the year  ended  December  31,  1993,  operating  activities  produced
$665,000 of cash.  Investment  activities  during 1993 utilized $25.2 million of
cash  primarily for the  acquisition  of the Sinton  Properties in the amount of
$19.9 million and the development of existing producing  properties at a cost of
$5.2 million  being offset by the sale of equipment  inventory and various crude
oil and natural gas properties for $768,000.  The Company borrowed $20.6 million
during 1993 and repaid $17.2 million of long-term debt and sold 2,250,000 shares
of  Common  Stock  for  net  proceeds  of  $23.1  million  resulting  in  a  net
contribution of $26.4 million from financing activities.

      As a result of the acquisition of certain partnership  interests and crude
oil and natural gas  properties  in 1990 and 1991,  an  ownership  change  under
Section 382 occurred in December 1991. Accordingly,  it is expected that the use
of net operating  loss carry  forwards  generated  prior to December 31, 1991 of
$6.9 million will be limited to  approximately  $235,000 per year.  During 1992,
the Company acquired 100% of the capital stock of an unrelated corporation.  The
use of net  operating  loss carry  forwards  of $3.6  million  of the  unrelated
corporation are limited to  approximately  $115,000 per year. As a result of the
issuance of  additional  shares of Common  Stock for  acquisitions  and to raise
capital, an additional  ownership change occurred in October 1993.  Accordingly,
it is expected  that the use of the $13.4  million of net  operating  loss carry
forwards  generated  through October 1993 will be limited to approximately  $1.0
million per year,  subject to the limitations  described above, and $7.2 million
in the  aggregate.  Future changes in ownership may further limit the use of the
Company's  net  operating  loss carry  forwards.  In  addition  to  Section  382
limitations,  uncertainties  exist as to the future utilization of the operating
loss carry  forwards  under the criteria set forth under FASB Statement No. 109.
Therefore, the Company has established a valuation allowance of $5.7 million and
$5.5   million  for   deferred  tax  assets  at  December  31,  1995  and  1994,
respectively.

   
      Based upon the current level of operations,  the Company believes that the
proceeds  from the  initial  offering  of the  Series A Notes,  cash  flow  from
operations and the New Credit  Facility will be adequate to meet its anticipated
requirements for working capital,  capital  expenditures and scheduled  interest
payments for the foreseeable  future. A depressed price for natural gas or crude
oil  would  have a  material  adverse  effect  on the  Company's  cash flow from
operations  and  anticipated  levels of  working  capital,  and could  force the
Company to revise its planned capital expenditures.
    



<PAGE>


New Accounting Standards

      In October 1995,  the FASB issued SFAS 123,  "Accounting  for  Stock-Based
Compensation." SFAS 123, effective for fiscal years beginning after December 31,
1995, defines a fair value-based method of accounting and establishes  financial
accounting and reporting standards for stock-based employee  compensation plans.
Under the fair value-based  method,  compensation  cost is measured at the grant
date  based  upon the  value of the  award and is  recognized  over the  service
period.  SFAS 123 allows for the  election to  continue  to measure  stock-based
compensation  cost using the  intrinsic  value method of  Accounting  Principles
Board Opinion No. 25 "Accounting for Stock Issued to Employees"  ("APB 25"). The
election  of this  option  requires  a pro forma  disclosure  of net  income and
earnings per share as if the fair value-based  method of accounting,  as defined
by SFAS 123, had been  applied.  Currently,  the Company  expects to continue to
follow APB 25 and will adopt the required  disclosures for financial  statements
beginning in 1996.



<PAGE>


                                    BUSINESS

General

      The Company is an  independent  energy  company  engaged  primarily in the
acquisition,  exploration,  development  and production of crude oil and natural
gas.  Since January 1, 1991,  the Company's  principal  means of growth has been
through the acquisition and subsequent development and exploitation of producing
properties and related assets.  The Company  utilizes a disciplined  acquisition
strategy,  focusing  its efforts on  producing  properties  and  related  assets
possessing  the  following  characteristics:   a  concentration  of  operations;
significant,  quantifiable  development  potential;  historically  low operating
expenses; and the potential to reduce G&A expenses per BOE. The Company seeks to
complement   its   acquisition   and   development   activities  by  selectively
participating in exploration projects with experienced industry partners.  After
giving  effect to the Recent  Acquisitions,  the  Company's  principal  areas of
operation are Texas,  western Canada and southwestern  Wyoming. The Company owns
interests in 225,290 gross acres  (126,845 net acres) and 507 gross wells (325.8
net wells),  352 of which are operated by the Company,  and varying interests in
13 natural  gas  processing  plants or  compression  facilities.  On a pro forma
basis,  at June 30, 1996,  the Company  would have had total proved  reserves of
45,647  MBOE  (64.9%  natural  gas),  of which  81.7%  would  have  been  proved
developed.  On a pro forma basis,  for the nine months ended September 30, 1996,
the Company's EBITDA would have been $28.4 million.

      The  Company's  acquisition,  development,  exploitation  and  exploration
activities  have  substantially  increased  the Company's  proved  reserve base,
average daily  production  and natural gas  processing  plant  throughput  while
decreasing its total  operating and G&A expenses per BOE. After  consummation of
the Recent Acquisitions,  the Company has completed 16 acquisitions of producing
properties totaling 46,009 MBOE of proved reserves at an average net acquisition
cost of $3.83 per BOE since  January  1,  1991.  From  January  1,  1991,  on an
historical  basis,  to June 30, 1996, on a pro forma basis,  the Company's total
proved  reserves would have increased from 889 MBOE to 45,647 MBOE and aggregate
PV-10 would have increased from $11.9 million to $218.3 million. From January 1,
1991, on an historical  basis, to the nine months ended September 30, 1996, on a
pro forma basis,  average net daily  production  would have increased from 0.141
MBOE per day to 14.1 MBOE per day. On a pro forma basis,  the Company would have
had net natural gas  processing  capacity of 128.1 MMcf per day as of  September
30, 1996. In addition, on a pro forma basis, for the nine months ended September
30, 1996,  average net daily natural gas processing  plant throughput would have
been 87.4 MMcf per day, of which 27.3 MMcf would have been  processed  for third
parties,  and net operating revenue from processing natural gas of third parties
at the Canadian Abraxas Plants would have been $1.9 million. From the year ended
December 31, 1991, on an historical  basis,  to the nine months ended  September
30, 1996, on a pro forma basis, the Company's direct operating  expenses per BOE
would have  decreased  from $6.30 per BOE to $2.81 per BOE and G&A  expenses per
BOE would have decreased from $5.39 per BOE to $0.66 per BOE. As a result of the
Company's successful acquisition strategy and its ability to decrease its direct
operating and G&A expenses per BOE, the  Company's  EBITDA  (excluding  interest
income) has increased  from $6.66 per BOE, for the year ended December 31, 1991,
to, on a pro forma basis, $7.24 per BOE, for the nine months ended September 30,
1996.

      The  Company  was founded in 1977 by Robert  L.G.  Watson,  the  Company's
Chairman of the Board,  President and Chief Executive Officer.  Canadian Abraxas
was formed by the  Company  in 1996 to acquire  CGGS.  The  Company's  principal
offices are located at 500 North Loop 1604 East,  Suite 100, San Antonio,  Texas
78232 and its telephone number is (210) 490-4788.  Canadian  Abraxas'  principal
offices are located at 630 - 6th Avenue,  S.W., Suite 303, Calgary,  Alberta and
its  telephone  number is (403)  262-1949.  At June 30, 1996,  pro forma for the
Recent Acquisitions,  the Company would have had total proved reserves of 45,647
MBOE (64.9%  natural gas) with an aggregate  PV-10 of $218.3  million,  71.7% of
which would have been  attributable to proved developed  reserves.  In addition,
the  Company  owns  varying  interests  in 13 natural gas  processing  plants or
compression facilities and 197 miles of natural gas gathering systems.



<PAGE>


Business Strategy

      The Company's primary business objectives are to: increase its recoverable
reserves,   production  and  cash  flow  from   operations   through   strategic
acquisitions;  exploit and develop its producing  properties;  maintain low cost
operations;  and pursue a focused  exploration  strategy.  The Company  seeks to
achieve its business objectives through the use of the following strategies:

o  Disciplined   Acquisition  Strategy.   The  Company  utilizes  a  disciplined
acquisition  strategy,  focusing its acquisition efforts on producing properties
and related assets possessing the following characteristics:  a concentration of
operations;  significant,  quantifiable development potential;  historically low
operating  expenses;  and the  potential  to reduce G&A  expenses  per BOE.  The
success of the Company's  acquisition  strategy is  illustrated by the following
table:
<TABLE>
<CAPTION>

                                                                 June 30,
Property            Purchase  Purchase  Cumulative  Cumulative     1996  
- --------              Date     Price(1) CapEx(2)    Cash Flow(3)   PV-10  IRR(4)
                    --------  --------- ----------  ------------ -------- ------                                  
                                      (dollars in millions)
<S>                   <C>      <C>       <C>      <C>        <C>         <C>  
Delaware              7/1/94   $  25.0   $   6.8  $  6.0     $ 37.6      19.3%
Properties (5)
Sinton Properties(6)  1/1/93      19.6      13.4    12.1(7)    43.0      21.4%
Sharon Ridge/
  Westbrook           9/1/92       4.4       0.4     2.0        5.2      13.1%
Spraberry             7/1/94       3.2       3.0     0.9        7.1      18.5%
Happy                8/12/92       2.2       0.1     2.6(7)     2.0      31.0%
</TABLE>
- ----------------

(1) Purchase  price is net of accrual of net revenue from the effective  date of
    acquisition to purchase date.
(2) Consists of capital expenditures on a cumulative basis from date of purchase
    through June 30, 1996 (undiscounted).
(3) Consists of operating  revenue  less LOE on a cumulative  basis from date of
    purchase through June 30, 1996 (undiscounted).
(4) IRR was  calculated  assuming that the purchase  price for each property was
    paid on the purchase date and that the cumulative  capital  expenditures and
    cumulative cash flow occurred in equal monthly amounts over the time periods
    presented.
(5) Consist of the  Company's  interests in Cherry  Canyon and the Delaware Area
    (each as defined herein).
(6) Consist of the Company's interests in Portilla, East White Point and Stedman
    Island (each as defined herein). Does not include the 50% overriding royalty
    interest in Portilla,  East White Point and Stedman Island  previously owned
    by the Pension Fund (as defined herein).
(7) Does not  include  results of  operations  of the  Partnership  (as  defined
    herein) from March 21, 1996 to June 30, 1996 or proceeds  from the Acco Sale
    (as defined herein).

      In connection with the acquisition of the Sinton  Properties,  the Company
also acquired  interests in two natural gas processing  plants, one of which was
subsequently sold in the Acco Sale. See "-- Recent  Acquisitions -- Portilla and
Happy." Since being  acquired by the Company,  the average net daily natural gas
processing  throughput  of these plants has  increased by an average of 7.3% per
year,  revenue  has  increased  by an  average  of 24.5% per year and  operating
expenses as a percentage  of revenue  have  decreased by an average of 13.7% per
year.

   
o  Exploitation  Of Existing  Properties.  The Company  allocates a  significant
amount  of  its  non-acquisition  capital  budget  to  the  exploitation  of its
producing properties.  As of June 30, 1996, on a pro forma basis,  approximately
18.3%  (8,373  MBOE) of the  Company's  total  proved  reserves  would have been
classified  as proved  undeveloped.  Management  believes  that the proximity of
these  undeveloped  reserves to existing  production makes  development of these
properties less risky and more cost-effective than other drilling  opportunities
available to the Company. The Company has identified 276 potential  exploitation
opportunities on the Company's existing  properties  including those acquired in
the Recent  Acquisitions.  The Company  drilled 38 wells during 1996  (including
seven in western Canada) at a total cost of $13.2 million with a success rate of
90% . In addition,  the Company  performed 42 workovers or recompletions  during
1996 at an  estimated  cost of $3.3  million  and  plans to drill  113 wells and
perform 48 workovers or recompletions  during 1997 at an estimated cost of $33.3
million.
    

o Low Cost  Operations.  The Company  seeks to maintain  low  operating  and G&A
expenses per BOE by operating a majority of its producing properties and related
assets  and by using  contract  personnel  to  assist  with the  development  or
evaluation  of  producing  properties  and related  assets.  As a result of this
strategy, the Company's EBITDA Margin has consistently improved since 1991, even
in years with depressed  commodity prices. From the year ended December 31, 1991
to,  on a pro forma  basis,  the nine  months  ended  September  30,  1996,  the
Company's  direct operating and G&A expenses per BOE have decreased by 55.4% and
87.8%, respectively, resulting in an improvement in EBITDA Margin as illustrated
below:
<TABLE>
<CAPTION>

                                                                            Nine Months Ended
                                 Year Ended December 31                      September 30,
                 -------------------------------------------------------  ------------------
                                                                Pro                 Pro
                                                                Forma              Forma
   
(per BOE) (1)       1991    1992      1993     1994    1995     1995 (5)    1996    1996 (5)
    
                 --------- -------  -------  -------  -------  ---------- -------- ----------
   
<S>              <C>       <C>      <C>      <C>      <C>      <C>        <C>      <C>     
Total  operating
 revenue (2)     $  18.35  $ 16.03  $ 15.98  $ 13.08  $ 12.15  $ 8.61 (5) $ 14.08  $ 10.71 (5)
Direct operating
 expenses (3)        6.30     6.23     6.39     4.41     3.92    2.50 (5)    4.21     2.81 (5)
G&A                  5.39     4.59     1.09     0.93     0.92    0.49        1.54     0.66
    
                 --------- -------  -------  -------  -------  ---------- -------- ----------
   
EBITDA (4)       $   6.6   $  5.2   $  8.5   $  7.7   $  7.31  $ 5.62 (5) $  8.33  $  7.24(5)
EBITDA Margin      36.3%    32.5%    53.2%    59.2%     60.2%   65.3%       59.2%    67.6%(5)
    
</TABLE>
- --------------------

(1) Amounts  are  calculated  on the  basis of  dollars  per BOE of  production.
    Production data does not include third-party natural gas processing volumes.

(2) Consists of crude oil and natural gas  production  sales,  revenue  from rig
    operations  and  processing of natural gas of third parties as well as other
    miscellaneous revenue. Both historical and pro forma total operating revenue
    for the nine months ended  September  30, 1996 are  presented  net of a loss
    from hedging activities incurred during such period.

(3) Consists of lease operating expenses,  production taxes, abandoned projects,
    rig operating expenses and processing expenses.

(4) Does not include interest income.

   
(5) Includes  results from the Hoole Area.  See " - Recent  Acquisitions - CGGS"
    and " - Primary Operating Areas - Western Canada."

    

o Focused Exploration  Activity.  The Company allocates a portion of its capital
budget to the drilling of exploratory  wells which have high reserve  potential.
The Company  believes  that by devoting a relatively  small amount of capital to
high impact,  high risk projects  while  reserving the majority of its available
capital for  development  projects,  it can reduce its risk profile  while still
benefiting from the potential for significant  reserve additions.  See "Business
- -- Primary Operating Areas -- Exploration Opportunities."

                               Recent Acquisitions

      The Company has recently acquired CGGS, the Wyoming  Properties,  Portilla
and Happy,  East White Point and Stedman Island for an aggregate  purchase price
of  approximately  $176.2  million  (the  "Recent  Acquisitions").  The  Company
believes that each of the Recent  Acquisitions  is consistent with the Company's
acquisition strategy.

CGGS

      In  November  1996,  Canadian  Abraxas  acquired  100% of the  outstanding
capital stock of CGGS,  after the  consummation  of the sale of the Nevis Plant,
for  CDN$126.4   million,   or  approximately   U.S.$94.8   million,   including
approximately $8.3 million for CGGS' working capital.

   
      Canadian  Abraxas owns producing  properties in western Canada  consisting
primarily of natural gas reserves and interests  ranging from 10% to 100% in 197
miles of natural gas gathering  systems and 11 natural gas processing  plants or
compression  facilities,  four of which are  operated by Canadian  Abraxas.  The
Canadian  Abraxas  Properties  consist of 154,968 gross acres (86,327 net acres)
and 120 gross  wells  (68.8 net  wells),  48 of which are  operated  by Canadian
Abraxas.  As of September 1, 1996,  the Canadian  Abraxas  Properties  had total
proved  reserves of 10,821 MBOE (91.8%  natural gas) with an aggregate  PV-10 of
$46.4 million, 86.3% of which was attributable to proved developed reserves. The
Canadian  Abraxas  Plants had aggregate net natural gas  processing  capacity of
98.3 MMcf per day at September 1, 1996. For the nine months ended  September 30,
1996, the Canadian Abraxas Plants processed an average of 182.8 gross MMcf (65.7
net  MMcf)  of  natural  gas per day,  of which  19.6%  (39.7%  net) was  custom
processed for third parties.  For the nine months ended  September 30, 1996, the
Canadian  Abraxas   Properties  and  the  Canadian  Abraxas  Plants  would  have
contributed $10.3 million of EBITDA to the Company on a pro forma basis.

      In January 1997,  Canadian Abraxas entered into a letter of intent to sell
its interest in the Hoole Area for  approximately  $9.3 million.  The Hoole Area
consists  of 9,728  gross  acres  (3,311 net acres) and 6.4 gross wells (3.2 net
wells), none of which are operated by Canadian Abraxas. As of September 1, 1996,
the Hoole Area natural gas properties had total proved  reserves of 1,477.0 MBOE
with an aggregate  PV-10 of $6.3  million,  89.3% of which was  attributable  to
proved  developed  reserves.  The Hoole Area  natural gas  processing  plant had
aggregate net natural gas processing  capacity of 32.0 MMcf per day at September
1, 1996.  For the nine months ended  September 30, 1996,  the Hoole Area natural
gas processing  plant  processed an average of 18.9 gross MMcf (9.5 net MMcf) of
natural  gas per day,  of which 4.4% (2.2% net) was custom  processed  for third
parties. For the nine months ended September 30, 1996, the Hoole Area properties
and natural gas processing plants contributed $2.4 million of revenue to CGGS.

      The  Company   believes  that  the  Canadian   Abraxas   Properties   have
significant,  quantifiable  development  potential which can be realized through
exploitation  and development.  The Company believes that processing  volumes at
the Canadian Abraxas Plants can be increased due to unutilized gross natural gas
processing  throughput  capacity at the plants of approximately  62.7 MMcf (32.4
net MMcf) of natural  gas per day.  The Company  intends to utilize  this excess
capacity by seeking to process additional natural gas volumes from third parties
and from increased production from the Canadian Abraxas Properties. In addition,
the Company  believes that increases in the demand for natural gas from Alberta,
Canada will help to reduce the existence of basis  differentials  in the pricing
of natural gas produced in this area. The Company believes that its ownership of
the Canadian Abraxas Properties and the Canadian Abraxas Plants will afford it a
competitive  advantage  relative to other area  operators  due to the  Company's
preferential access to the natural gas processing capacity at these facilities.
    

      Immediately  after the acquisition of CGGS, the Company  amalgamated  CGGS
with Canadian  Abraxas,  and Canadian  Abraxas,  being the name of the surviving
entity,  used the net  proceeds  from the sale of the Nevis  Plant to retire the
outstanding debentures of CGGS. In addition,  Canadian Abraxas intends to sell a
10% working interest in the Canadian Abraxas Properties and the Canadian Abraxas
Plants to Cascade,  in  connection  with the  Company's  plan to  integrate  the
operations of the Canadian  Abraxas  Properties and the Canadian  Abraxas Plants
into the existing  operations of Cascade.  The Company has identified  potential
cost savings through  anticipated  decreases in the G&A expenses of CGGS,  which
would  have  amounted  to  approximately  $380,000  for the  nine  months  ended
September 30, 1996, on a pro forma basis.  See the unaudited Pro Forma Financial
Information and the notes thereto included elsewhere in this Prospectus.

The Wyoming Properties

   
      On September 30, 1996, the Company  acquired the Wyoming  Properties which
had total proved reserves of 9,935 MBOE (68.5% natural gas) as of June 30, 1996,
for $47.5  million in cash,  before  adjustment  for  accrual of net revenue and
interest  from April 1, 1996 to  September  30,  1996.  The  Wyoming  Properties
consist of 19,587  gross  acres  (14,091 net acres) and 25 gross wells (20.4 net
wells),  22 of which are  operated  by the  Company.  In  addition,  the Company
acquired  various  overriding  royalty  interests in four wells.  As of June 30,
1996, the aggregate PV-10 of the Wyoming Properties was $30.3 million (based, in
part,  on an  assumed  natural  gas price of $1.07 per Mcf),  97.3% of which was
attributable to proved developed  reserves.  For the nine months ended September
30, 1996, the Wyoming  Properties  would have contributed $5.4 million of EBITDA
to the Company on a pro forma basis.  As of September 30, 1996,  the Company had
recorded the  preliminary  net purchase  price of $45.9 million to its crude oil
and natural gas properties.
    

      Management   believes  that  the  Wyoming   Properties  have   significant
development  potential  which will enable the Company to increase  its cash flow
from operations and reserve base without significant capital  expenditures.  The
Company intends to exploit this development potential through the more efficient
use of compression and gathering  facilities,  low cost recompletions of various
behind-pipe  zones and drilling of infill  development  wells on closer spacing.
The Company has drilled two wells on the Wyoming  Properties since September 30,
1996.  Additionally,  the  Company has  identified  potential  exploitation  and
development  opportunities  which  it  believes  may have up to  15,400  MBOE of
additional  reserves.  The Wyoming Properties are  geographically  concentrated,
thereby  enabling  the  Company  to operate  the  properties  without  incurring
additional  G&A  expenses.  In  addition,  the Company  believes  that  expected
improvements in the transportation  infrastructure and an increase in the demand
for natural gas from  southwestern  Wyoming will help to reduce the existence of
basis differentials in the pricing of natural gas produced in the area.

Portilla and Happy

   
      In November 1996, the Company acquired Acco's partnership  interest in the
Partnership for $27.6 million,  including the repayment of certain  indebtedness
and before  adjustment  for the accrual of net revenue to the closing date.  The
Company  previously  owned the  remaining 25% interest in the  Partnership.  The
Partnership owned a 100% working interest in the Portilla Field, a 100% interest
in the Portilla  Plant and a 12% working  interest in Happy Field.  Portilla and
Happy  consist of 1,405 gross acres (1,115 net acres) and 78 gross wells (52 net
wells), 61 of which are operated by the Company.  As of June 30, 1996,  Portilla
and Happy had total  proved  reserves of 4,314 MBOE (18.4%  natural gas) with an
aggregate  PV-10 of $30.2  million,  99.8% of which was  attributable  to proved
developed  reserves.  The Portilla Plant had natural gas processing  capacity of
approximately  20.0 MMcf per day at September  30, 1996.  During the nine months
ended  September 30, 1996, the Portilla Plant  processed an average of 17.2 MMcf
of natural gas per day. For the nine months ended  September 30, 1996,  Portilla
and Happy would have  contributed  an  additional  $3.8 million of EBITDA to the
Company on a pro forma basis.
    

      The Company  previously owned a 50% interest in Portilla and a 12% working
interest in Happy. In March 1996, the Company sold its interests in Portilla and
Happy to Acco for net consideration of $15.6 million. Acco subsequently obtained
the release of a 50% overriding royalty interest in Portilla previously owned by
the Pension Fund and Acco then  contributed  its interests in Portilla and Happy
to the Partnership in return for the Partnership Interest. The Company continued
to operate  Portilla  subsequent to the Acco Sale. See "Recent  Acquisitions  --
Portilla and Happy."

East White Point and Stedman Island

      In November 1996,  the Company  obtained the release of the 50% overriding
royalty  interests in East White Point and Stedman  Island from the Pension Fund
for $9.3 million  before  adjustment for accrual of net revenue from August 1996
to  November  27,  1996.  The  Pension  Fund's  interest in East White Point and
Stedman  Island  consisted  of 3,723 gross acres  (1,256 net acres) and 25 gross
wells (6.5 net wells),  15 of which are operated by the Company.  As of June 30,
1996,  East White Point and Stedman  Island had total  proved  reserves of 5,304
MBOE (62.3%  natural gas) with an  aggregate  PV-10 of $29.4  million,  71.7% of
which was  attributable  to proved  developed  reserves.  The East  White  Point
natural  gas  processing  plant,  a modern  cyrogenic  plant  with  capacity  of
approximately 25.0 MMcf of natural gas per day, extracted approximately 679 Bbls
of NGLs per day for the nine months ended September 30, 1996.

Primary Operating Areas

Texas

      Abraxas Cherry Canyon Field,  Ward County,  Texas.  In connection with the
acquisition of the West Texas  Properties in July 1994, the Company  acquired an
interest in approximately  7,360 gross acres (4,500 net acres) in this field and
currently operates 20 of the wells in its acreage. The Company drilled its first
shallow pool exploratory test well in this field in March 1995. Since that time,
this field has become the principal focus of the Company's development activity.
To date,  24  wells  have  been  drilled  and  completed  in one or more  sands,
including the Bell Canyon,  Cherry  Canyon and Brushy  Canyon Sands.  Four other
sands have been production tested with additional sands remaining behind pipe to
be tested in the future.  The Company is currently  attempting to delineate this
field by  drilling  wells in several  different  areas.  The Company has not yet
drilled any dry holes in this field. Two wells have been drilled by Chevron USA,
Inc. and Southwest  Royalties,  Inc.  offsetting the Company's acreage.  Both of
these  wells are  currently  being  completed  and, if  successful,  could prove
additional  locations on the Company's acreage. At June 30, 1996, this field had
estimated net proved  reserves of 3,647 MBOE (50.4% natural gas) with a PV-10 of
$20.3 million, 73.0% of which was attributable to proved developed reserves. For
the nine months  ended  September  30, 1996,  this field  produced an average of
approximately 256 net Bbls of crude oil and NGLs and approximately 1,417 net Mcf
of natural gas per day from 11.1 net wells.

      Delaware  Area  (Howe,  ROC,  Block 16,  Taurus,  Gomez and Nine Mile Draw
Fields),  Ward,  Reeves,  and Pecos  Counties,  Texas.  In  connection  with the
acquisition  of the West Texas  Properties  in July 1994,  the Company  acquired
working interests ranging from 18% to 100% in 35 wells, 29 of which are operated
by the Company.  These fields produce from Devonian,  Wolfcamp,  Ellenburger and
Cherry Canyon  formations  at depths  ranging from 6,500 feet to 17,600 feet. At
June 30, 1996,  these fields had  estimated  total net proved  reserves of 3,644
MBOE  (83.4%  natural  gas)  with a PV-10 of $17.3  million,  100% of which  was
attributable to proved developed  reserves.  For the nine months ended September
30, 1996,  these  fields  produced an average of  approximately  127 net Bbls of
crude oil and NGLs and 4,253 net Mcf of natural gas per day from 21.1 net wells.

   
      Portilla  Field,  San  Patricio  County,  Texas.  The  Company  originally
acquired a 50% working  interest in Portilla in April 1993.  In March 1996,  the
Company sold its interest in Portilla to Acco, which subsequently contributed it
to the Partnership.  In September 1996, the Company entered into an agreement to
reacquire  Portilla,  including the 50% interest previously owned by the Pension
Fund.  See "--  Recent  Acquisitions  --  Portilla  and  Happy."  This field was
discovered  in the 1950's by Superior  Oil Company and  produces  from  numerous
Miocene, Frio and Vicksburg age sands at depths ranging from 4,000 feet to 9,000
feet. At June 30, 1996,  this field had  estimated net proved  reserves of 4,134
MBOE  (19.2%  natural  gas)  with a PV-10 of $28.2  million,  99.8% of which was
attributable to proved developed  reserves.  For the nine months ended September
30, 1996, the field produced an average of  approximately  872 net Bbls of crude
oil and NGLs and  approximately  1,957 net Mcf of natural  gas per day from 51.0
net wells.  The Company  owns a 100%  interest in the  Portilla  Plant which had
aggregate  capacity  of  approximately  20.0  MMcf  of  natural  gas  per day at
September  30,  1996.  During the nine months  ended  September  30,  1996,  the
Portilla Plant  processed an average of  approximately  17.2 MMcf of natural gas
per day and extracted an average of approximately  271 Bbls of NGLs per day. The
Company is currently the operator of the Portilla  Plant and all of the wells in
the Portilla Field.
    

      East White Point Field, San Patricio County, Texas. The Company originally
acquired an  approximate  30% working  interest in this field in April 1993. The
field  produces  crude oil and natural gas from numerous sands in the Lower Frio
formation at depths  ranging  from 9,000 feet to 13,000 feet.  At June 30, 1996,
this field had estimated net proved  reserves of 8,191 MBOE (61.0%  natural gas)
with a PV-10  of  $45.9  million,  74.2% of which  was  attributable  to  proved
developed  reserves.  The Company  operates 11 wells in this field, and Marathon
Oil Company  ("Marathon")  operates 10 additional wells in which the Company has
an interest.  For the nine months ended  September 30, 1996, this field produced
an average of approximately 461 Net Bbls of crude oil and NGLs and 3,544 net Mcf
of natural gas per day from 5.7 net wells.  The Company also owns an approximate
38.4% interest in and operates a natural gas processing plant in this field. The
East White Point natural gas  processing  plant, a modern  cyrogenic  plant with
capacity of approximately  25 MMcf of natural gas per day,  processed an average
of  approximately  11.6 MMcf of natural gas per day and extracted  approximately
679 Bbls of NGLs per day for the nine months ended September 30, 1996.

      Stedman  Island  Field,  Nueces  County,  Texas.  The  Company  originally
acquired a 25% working  interest  in this field in April 1993 and an  additional
25% in October  1995.  This field  produces  crude oil and natural gas from Frio
sands at depths  ranging from 8,500 feet to 10,000 feet. At June 30, 1996,  this
field had estimated net proved reserves of 2,305 MBOE (67.6% natural gas) with a
PV-10 of $12.3  million,  62.6% of which was  attributable  to proved  developed
reserves.  For the nine months ended  September 30, 1996, this field produced an
average  of  approximately  42 net Bbls of crude oil and NGLs and 913 net Mcf of
natural  gas per day from 2.5 net wells.  In July  1996,  the  Company  placed a
successful  recompletion  well  on  production  which  produced  an  average  of
approximately  20 net Bbls of crude oil and 800 net Mcf of  natural  gas per day
during the  balance  of the month of July and  during  August and 13 net Bbls of
crude oil and 665 net Mcf of natural  gas per day  during  September  1996.  The
Company  believes  that  additional  productive  zones remain  behind pipe.  Two
additional  workovers  have been  identified  and are  expected to be  completed
during the first quarter of 1997. The Company has also  identified a potentially
significant  exploratory  location  using  recently  acquired  and  re-processed
seismic data in a horizon  below current  production  in the field.  The seismic
data  indicates the presence of an untested fault block in the deeper Frio sands
and the Company plans to drill a test well during the fourth quarter 1996.

      Spraberry Trend Field, Midland,  Martin and Reagan Counties,  Texas. Since
January 1, 1991,  the Company has  acquired  interests  in or drilled  eight new
wells in this field.  This field  produces at depths  ranging from 8,000 feet to
9,100 feet in multiple  sands.  The Company  owns  interests in 30 wells in this
field,  15 of which  are  operated  by the  Company.  Following  the  successful
completion  of two wells  during the second  quarter of 1996,  eight  additional
proved  undeveloped  locations  were  identified  by the  Company's  independent
petroleum  engineers.  At June 30,  1996,  this field had  estimated  net proved
reserves of 1,335 MBOE (27.0%  natural gas) with a PV-10 of $7.1 million,  78.5%
of which was  attributable  to proved  developed  reserves.  For the nine months
ended September 30, 1996, the field produced an average of approximately 150 net
Bbls of crude oil and NGLs and  approximately  351 net Mcf  natural  gas per day
from 17.4 net wells.

      Sharon Ridge and Westbrook Fields,  Scurry and Mitchell  Counties,  Texas.
The Company  drilled its first wells in the Westbrook Field in 1978 and operated
approximately  40 wells prior to 1992.  These two fields  produce crude oil from
Permian age carbonates at depths ranging from 1,700 feet to 3,500 feet. In 1992,
the Company acquired working interests ranging from 57.5% to 100% and became the
operator  of 124 wells in the  Sharon  Ridge  Field,  which is  adjacent  to the
Westbrook  Field. At June 30, 1996,  these fields had estimated total net proved
reserves of 991 MBOE (5.1% natural gas) with a PV-10 of $5.2  million,  75.1% of
which was attributable to proved developed  reserves.  For the nine months ended
September 30, 1996,  these fields produced an average of  approximately  200 net
Bbls of crude oil and NGLs per day from 89.0 net wells. The Company is currently
investigating  production enhancement efforts in this field, which could include
waterflooding and development drilling.

Southwestern Wyoming

   
      The Company  acquired the Wyoming  Properties in September  1996. See " --
Recent  Acquisitions."  The Wyoming Properties produce natural gas from numerous
sands at depths  ranging from 8,500 feet to 12,000 feet.  At June 30, 1996,  the
Wyoming  Properties had estimated total net proved reserves of 9,935 MBOE (68.5%
natural  gas)  with a PV-10 of $30.3  million  (based,  in part,  on an  assumed
natural gas price of $1.07 per Mcf),  97.3% of which was  attributable to proved
developed  reserves.  For the nine months ended  September 30, 1996, the Wyoming
Properties  produced an average of  approximately  997 net Bbls of crude oil and
NGLs and 12,477 net Mcf of natural gas per day from 22.0 net wells.
    

Western Canada

   
      Producing  Properties.  In January 1996, the Company invested $3.0 million
in  Grey  Wolf  Exploration  Ltd.  ("Grey  Wolf"),  a  privately  held  Canadian
corporation,  which, in turn,  invested these proceeds in newly-issued shares of
Cascade,  an  Alberta-based  corporation  whose common  shares are traded on The
Alberta  Stock  Exchange  under the symbol  "COL." The  Company  owns 78% of the
outstanding  capital stock of Grey Wolf and, through Grey Wolf, the Company owns
approximately 52% of the outstanding capital stock of Cascade. Cascade owns 30.0
gross (4.3 net to Cascade)  producing crude oil and natural gas wells and 12,000
net  acres of  undeveloped  leases in  southwestern  Saskatchewan.  These  wells
produce crude oil from multiple sands at depths ranging from 4,200 feet to 4,600
feet. A report  prepared by Cascade's  independent  petroleum  engineers  showed
estimated net proved  reserves of 141 MBbls of crude oil with a PV-10 of CDN$1.4
million,  or approximately  U.S.$0.9 million,  at January 1, 1996. None of these
reserves  or values  are  included  in the report of the  Company's  independent
petroleum engineers. See " -- Reserves Information." Cascade has drilled one dry
exploratory  well and Grey Wolf has drilled  six  successful  development  wells
during 1996.  As of January 20, 1997,  the market value of the shares of Cascade
held by Grey Wolf was  approximately  U.S.$13.9  million,  based on the  closing
price per share of Cascade stock on The Alberta Stock Exchange on such date.
    

      In November 1996, Canadian Abraxas acquired CGGS. As of September 1, 1996,
the Canadian  Abraxas  Properties  had  estimated  total net proved  reserves of
10,821 MBOE (91.7%  natural gas) with a PV-10 of $46.4  million,  82.4% of which
was  attributable  to  proved  developed  reserves.  For the nine  months  ended
September  30, 1996,  the  Canadian  Abraxas  Properties  produced an average of
approximately 600 net Bbls of crude oil and NGLs and 35.5 net Mcf of natural gas
per day from 68.8 net wells. See "-- Recent Acquisitions."



<PAGE>


      The following table sets forth a summary of certain information, by field,
of the Canadian Abraxas Properties:

                                                   Average Daily
                                                Production for Nine
                                                    Months Ended
                                                 September 30, 1996
                                                ---------------------
                                    Reserves    Crude Oil
                                       at        & NGLs     Natural
Name   of     Working   Net Wells   September    (MBbls)      Gas
Field         Interest               1, 1996                 (MMcf)
                                      (MBOE)
   
Quirk Creek      (1)        5.0       1,785.3      0.2        3.6
Sundre           (2)        9.4       1,794.5      0.3        5.7
Hoole (3)        50%        3.2       1,477.0     --          7.7
Bellis          100%       10.1         961.7     --          2.7
Chinchaga        60%        2.4         859.7     --          3.3
Pouce Coupe     100%        3.0         758.7     --          3.4
Valhalla        100%        6.0         147.7      0.1        3.1
Other (4)        (5)       29.7       3,036.3     --          6.0
    
                        ---------------------------------------------
   
Total                      68.8      10,820.9      0.6(6)    35.5 (6)
    
- ------------
   
(1) CGGS owns a 21% working  interest in 12 wells and a 48% working  interest in
four wells. (2) CGGS owns working interests ranging from 11% to 70% in 16 wells.
(3) In January  1997,  the Company  entered  into a letter of intent to sell its
interest in the Hoole Area for approximately  $9.3 million.  (4) Consists of the
Big Bend, Knopcik,  Eaglesham,  Giroux Lake and Minor Properties.  (5) CGGS owns
working  interests  ranging  from 8% to 100% in 58 wells.  (6) Does not  reflect
burden from royalties payable to the Crown.

      Natural Gas Processing.  Canadian Abraxas' natural gas processing business
includes natural gas gathering and processing operations.  Natural gas gathering
operations  involve  locating and contracting for natural gas supplies  produced
from crude oil and natural gas fields and the  operation  and  maintenance  of a
gathering  system of pipelines  that connect such natural gas supply  sources to
natural gas  processing  plants.  Natural  gas  processing  involves  subjecting
natural  gas to high  pressure  and low  temperature  treatments  that cause the
natural  gas to  separate  into  various  products,  including a mixture of NGLs
(commonly referred to as raw product), residual natural gas and by-products such
as helium,  condensate and sulfur.  The combined  value of the residual  natural
gas, raw product and  by-products  is generally  higher than that of unprocessed
natural  gas.  Certain of Canadian  Abraxas'  processing  plants are equipped to
fractionate  the raw product  into its  component  products of ethane,  propane,
butanes and natural gasoline for sale to local markets.
    

      The  Company  believes  that the  Canadian  Abraxas  Plants  will  provide
substantial  revenue-enhancing  opportunities  to the  Company.  Several  of the
plants are located in areas with little or no competition from other natural gas
processing plants. The Company intends to utilize the plants' excess capacity by
seeking to process  additional  natural gas volumes from third  parties and from
increased production from the Canadian Abraxas Properties.  The Company believes
that its ownership of the Canadian  Abraxas  Properties and the Canadian Abraxas
Plants will afford it a competitive  advantage  relative to other area operators
due to the Company's  preferential access to the natural gas processing capacity
at these facilities.



<PAGE>


      For the nine months ended September 30, 1996, the Canadian  Abraxas Plants
processed an average of 182.8 MMcf of natural gas per day (65.7 MMcf per day net
to CGGS), of which 19.2% (39.2% net) was custom processed for third parties. The
following  table sets forth  certain  information  with  respect to the Canadian
Abraxas Plants for the nine months ended September 30, 1996.

                                   Maximum               Gross      CGGS
                                   Plant                 Average    Third
                         Working   Capacity              Throughput Party
Plant Location           Interest  (MMcfpd)   Utilization(MMcfpd)   Processing
                                                                    (MMcfpd)
   
Quirk Creek                  21%         80        67%      53.6       10.4
Knopcik (1)                  10%         56       100%      56.0        0.4
Hoole (2)                    50%         32        59%      18.9        0.5
Valhalla                    100%         30        67%      20.0       18.3
Sundre                       23%         20        68%      13.5         --
Bellis                      100%         10        76%       7.6        4.8
Big Bend                     77%          8        49%       3.9        1.1
Pouce Coupe                 100%          8        54%       4.3        0.4
Eaglesham                    25%          5       100%       5.0         --
    
                                   ---------  ---------  --------   --------
   Total                                249        73%     182.8       35.9
                                        ===        ===     =====       ====
- ------------
(1)   Consists of three plants.
   
(2) In January  1997,  the Company  entered  into a letter of intent to sell its
interest in the Hoole Area for approximately $9.3 million.
    

Exploration Opportunities

      The Company  allocates a portion of its capital  budget to the drilling of
exploratory wells which have high reserve  potential.  The Company believes that
by  devoting a  relatively  small  amount of capital to high  impact,  high risk
projects while  reserving the majority of its available  capital for development
projects,  it can  reduce  its risk  profile  while  still  benefiting  from the
potential for  significant  reserve  additions.  Some of the  Company's  current
exploration opportunities include the following:

   
      Yoakum Prospect, DeWitt County, Texas. The Company owns a 100% interest in
approximately  952 acres and intends to drill a 15,000 foot step-out well to the
Yoakum (Edwards)  Field. The test will attempt to extend existing  production in
the Edwards Field onto the Company's acreage.  Offsetting wells have produced as
much as 5,000 Mcf of natural  gas per day.  This well was  drilled in the fourth
quarter of 1996 and currently is in the final stages of completion.

      Roche Ranch,  Refugio County,  Texas.  The Company owns a 100% interest in
approximately  416 acres and intends to drill a 7,500 foot Frio test well during
the first  quarter of 1997.  This prospect is located  approximately  five miles
north of Portilla.

      Shanghai Field,  Wharton County,  Texas.  The Company owns a 20.0% working
interest in the Shanghai  Prospect.  Following two inconclusive wells drilled in
1994, the Company  participated  in an expansive 3-D seismic shoot.  The seismic
data was recently processed and interpreted.  During the fourth quarter of 1996,
the  Company  drilled a third well in the field on a  directional  basis to test
four potential Yegua Sands which is currently being completed.

      Jean  Prospect,  Young  County,  Texas.  The Company owns a 25.0%  working
interest and 18.8% net revenue interest in approximately 1,800 acres on the Jean
3D seismic project targeting the Mississippi and Caddo formations at 4,500 feet.
The  Company  drilled two wells in the fourth  quarter of 1996 and is  currently
re-evaluating the seismic data.
    

Developmental and Exploratory Acreage

      The following  table  indicates  the  Company's  interest in developed and
undeveloped acreage as of September 30, 1996, on a pro forma basis:


                                     Developed and Undeveloped Acreage
                                     Pro Forma As of September 30, 1996

                         Developed Acreage       Undeveloped Acreage
                       ----------------------- ------------------------
                       Gross       Net         Gross        Net Acres
                         Acres       Acres       Acres
                       ----------  ----------  ----------  ------------
   
 Canada                   65,150(1)   39,489(1)   89,818      46,838
 Texas                    40,032`     21,458       7,159       3,795
 N. Dakota                 1,864       1,021          --          --
 Montana                     320          10          --          --
 Kansas                      640         120          --          --
 Wyoming                   4,560       3,654      15,027      10,437
 Alabama                     720          23          --          --
    
                       ----------  ----------  ----------  ------------
       Total             113,286      65,775     112,004      61,070
   
- -------------
(1)  Includes  9,728 gross acres and 3,311 net acres in the Hoole Area.  See " -
Recent Acquisitions - CGGS" and " - Primary Operating Areas - Western Canada."
    

Productive Wells

      The following table sets forth the total gross and net productive wells of
the Company, expressed separately for crude oil and natural gas, as of September
30, 1996, on a pro forma basis:

                                              Productive Wells
                                     Pro Forma as of September 30, 1996

                              Crude Oil               Natural Gas
                        ----------------------  ------------------------
                          Gross        Net        Gross        Net
                        ----------- ----------- ----------- ------------
   
 Canada                       16.0        13.5       104.0(1)  55.3 (1)
 Texas                       248.0       171.3       100.0      62.3
 N. Dakota                     4.0         1.7          --        --
 Montana                       1.0         0.1          --        --
 New Mexico                     --          --         1.0       0.1
 Wyoming                       1.0         0.1        24.0      20.3
 Alabama                       2.0         0.1         1.0       0.1
 Utah                          1.0         0.1          --        --
 Kansas                        4.0         0.8          --        --
    
                        =========== =========== =========== ============
       Total                 277.0       187.7       230.0     138.1
                        =========== =========== =========== ============
   
- -----------
(1) Includes 6.4 gross wells and 3.2 net wells in the Hoole Area. See " - Recent
Acquisitions - CGGS" and " - Primary Operating Areas - Western Canada."
    

      Substantially  all of  the  Company's  U.S.  crude  oil  and  natural  gas
properties  on a pro  forma  basis  will be  pledged  to  secure  the  Company's
indebtedness  under the New Credit  Facility.  See  "Management's  Discussion of
Financial   Condition  and  Results  of  Operations  --  Liquidity  and  Capital
Resources."



<PAGE>


Reserves Information

   
      The crude oil and natural gas reserves of Abraxas  have been  estimated as
of January 1, 1995,  and January 1, 1996,  and June 30, 1996,  and the crude oil
and natural gas reserves of the Wyoming  Properties  and Portilla and Happy have
been  estimated as of June 30, 1996, by DeGolyer & MacNaughton,  Dallas,  Texas.
The crude oil and  natural  gas  reserves  of CGGS  have  been  estimated  as of
September 1, 1996, by Sproule  Associates  Limited,  Calgary,  Alberta,  Canada.
Crude oil and natural gas  reserves,  and the  estimates of the present value of
future net revenue  therefrom,  were determined based on then current prices and
costs.  Reserve  calculations  involved the  estimate of future net  recoverable
reserves  of crude oil and  natural  gas and the timing and amount of future net
revenue to be received  therefrom.  Such estimates are not precise and are based
on  assumptions  regarding a variety of factors,  many of which are variable and
uncertain.
    

      The following table sets forth certain information  regarding estimates of
the  Company's  crude oil,  NGLs and natural gas reserves as of January 1, 1995,
January  1, 1996 and June 30,  1996,  on a  historical  basis and on a pro forma
basis:

                                          Estimated Proved Reserves
                               ------------------------------------------------
                                 Proved            Proved             Total
                                Developed        Undeveloped         Proved
                               ------------      ------------      ------------

As of January 1, 1995
    Crude oil (MBbls)                3,617             3,033             6,649
    NGLs (MBbls)                     2,089               418             2,507
    Natural gas (MMcf)              48,973            18,606            67,579

As of January 1, 1996 (1)
    Crude oil (MBbls)                3,992             1,516             5,508
    NGLs (MBbls)                     2,007               752             2,759
    Natural gas (MMcf)              44,026            10,543            54,569

As of June 30, 1996 (1)
    Crude oil (MBbls)                2,906             1,083             3,989
    NGLs (MBbls)                     1,859               665             2,524
    Natural gas (MMcf)              41,903            10,663            52,566

Pro  Forma  (as  of  June  30,
1996) (1)(2)
   
    Crude oil (MBbls)                6,895             1,380             8,275
    NGLs (MBbls)                     6,242             1,522             7,764
    Natural gas (MMcf) (3)         144,803            32,848           177,651
    
- ------------
(1)   Does not include reserves of Cascade and Grey Wolf.
(2)   Includes reserves of CGGS at September 1, 1996.
   
(3) Includes 7,651 MMcf of proved  developed,  1,211 MMcf of proved  undeveloped
and 8,862 MMcf of total proved  natural gas reserves  attributable  to the Hoole
Area.  See " - Recent  Acquisitions  - CGGS"  and " Primary  Operating  Areas --
Western Canada."

      There are numerous  uncertainties  inherent in  estimating  quantities  of
proved  reserves and in projecting  future rates of production and the timing of
development  expenditures,  including  many  factors  beyond the  control of the
Company.  The reserve data included in this Prospectus represent only estimates.
In addition,  the  estimates  of future net revenue from proved  reserves of the
Company and the present value thereof are based upon certain  assumptions  about
future  production  levels,  prices,  and costs that may not prove to be correct
over time.  In  particular,  estimates  of crude oil and natural  gas  reserves,
future net revenue from proved  reserves and the PV-10 thereof for the Company's
crude oil and natural gas  properties  included in this  Prospectus are based on
the  assumption  that future oil and gas prices remain the same as crude oil and
natural gas prices at June 30, 1996, with respect to the Company's then existing
properties  and for  Portilla  and  Happy,  and for the  month of July 1996 with
respect to the Canadian Abraxas Properties.  The average sales prices as of such
dates used for  purposes  of such  estimates  were  $19.86 per Bbl of crude oil,
$14.09  per Bbl of NGLs and $1.27 per Mcf of  natural  gas with  respect  to the
Canadian Abraxas Properties,  $21.70 per Bbl of crude oil, $9.25 per Bbl of NGLs
and $1.07 per Mcf of natural gas with respect to the Wyoming Properties,  $19.98
per Bbl of crude oil,  $14.50  per Bbl of NGLs and $2.65 per Mcf of natural  gas
with respect to Portilla  and Happy and $20.64 per Bbl of crude oil,  $12.38 per
Bbl of NGLs and $2.29 per Mcf of natural gas with respect to the Company's other
properties in the aggregate. Also assumed is the Company's making future capital
expenditures  of  approximately  $19.7 million in the aggregate,  including $3.4
million  on  the  Wyoming  Properties,  $1.7  million  on the  Canadian  Abraxas
Properties  and $2.2  million on Portilla  and Happy,  necessary  to develop and
realize the value of its undeveloped reserves. Any significant variance in these
assumptions could materially affect the estimated quantity and value of reserves
set forth herein.  See "Risk Factors" and "Management's  Discussion and Analysis
of Financial Condition and Results of Operations."
    

      In  general,  the  volume of  production  from crude oil and  natural  gas
properties  declines as reserves are depleted.  Except to the extent the Company
acquires   properties   containing   proved  reserves  or  conducts   successful
exploration  and  development  activities,  or both, the proved  reserves of the
Company will decline as reserves are produced.  The  Company's  future crude oil
and natural gas  production  is  therefore  highly  dependent  upon its level of
success in acquiring or finding additional reserves.

      The  Company  files  reports of its  estimated  crude oil and  natural gas
reserves  with the  Department  of  Energy  and the  Bureau of the  Census.  The
reserves  reported  to these  agencies  are  required  to be reported on a gross
operated  basis and  therefore  are not  comparable to the reserve data reported
herein.

Crude Oil, NGLs and Natural Gas Production and Sales Prices

      The following  table  presents the net crude oil, net NGLs and net natural
gas production for the Company, the average sales price per Bbl of crude oil and
NGLs  and  per Mcf of  natural  gas  produced  and  the  average  LOE per BOE of
production  sold,  for each of the three years ended December 31, 1995, the nine
months ended  September 30, 1996,  and on a pro forma basis,  for the year ended
December 31, 1995, and the nine months ended September 30, 1996:

                                              Pro     September   Pro Forma
                                               Forma     30,
   
                      1993    1994     1995   1995      1996      September
                                                (1)             30, 1996 (1)
    
                     ---------------- ----------------------------------------

Production
    Crude oil (MBbls)  270.9   355.7    401.4   666.7   266.0     544.6
    NGLs (MBbls)        33.9   113.2    143.4   672.0   106.1     561.0
    Natural       gas  985.4 2,392.9  3,552.7 23,825.52,625.4   16,533.2
(MMcf)

Average sales price
    Crude   oil  (per  $15.54  $15.47   $17.16  $17.18  $19.94    $20.04
Bbl)
    NGLs (per  Bbl)    $14.75  $10.54   $10.83  $ 7.82  $12.73    $10.89
    Natural  gas (per  $ 2.60  $ 1.85   $ 1.47  $ 1.01  $ 1.95    $ 1.30
Mcf)

   
LOE (per BOE) (2)      $ 6.17  $ 4.26   $ 3.81  $ 2.25  $ 4.05    $ 2.36
    
- ----------
   
(1) Includes  results from the Hoole Area.  See " - Recent  Acquisitions - CGGS"
    and " - Primary Operating Areas -- Western Canada."

(2) Crude oil and natural gas were combined by converting  natural gas to BOE on
    the basis of 6 Mcf natural gas -- 1 Bbl of crude oil.
    



<PAGE>


Drilling Activities

      The  following  table  sets  forth the  Company's  gross  and net  working
interests in exploratory, development, and service wells drilled during the year
ended December 31, 1995, and the nine months ended September 30, 1996:

                                         1995         1996 (thru
                                                    September 30)
                                    --------------------------------
                                     Gross   Net   Gross     Net
                                    --------------------------------
Exploratory                              --     --     --        --
  Productive
     Crude oil                          2.0    1.0    1.0       0.3
     Natural gas                         --     --    1.0       0.3
  Dry holes                             1.0    1.0    1.0       1.0
                                    --------       -----------------
                                            =======
      Total                             3.0    2.0    3.0       1.6
                                    ================================
Development
  Productive
     Crude oil                         12.0    9.1   19.0      11.8
     Natural gas                        1.0    0.3    5.0       0.5
  Service                                --     --    2.0        --
  Dry holes                             1.0    0.6     --       0.8
                                    --------------------------------
      Total                            14.0   10.0   26.0      13.1
                                    ================================

Markets and Customers

      The revenue  generated by the Company's  operations  are highly  dependent
upon the prices of, and demand for crude oil and natural gas. Historically,  the
markets  for crude oil and  natural  gas have been  volatile  and are  likely to
continue to be volatile  in the future.  The prices  received by the Company for
its crude oil and natural gas  production  and the level of such  production are
subject to wide fluctuations and depend on numerous factors beyond the Company's
control  including  seasonality,  the  condition  of the United  States  economy
(particularly the manufacturing sector),  foreign imports,  political conditions
in other oil-producing and natural gas-producing  countries,  the actions of the
Organization  of  Petroleum   Exporting   Countries  and  domestic   regulation,
legislation  and policies.  Decreases in the prices of crude oil and natural gas
have had, and could have in the future,  an adverse effect on the carrying value
of the Company's proved reserves and the Company's  revenue,  profitability  and
cash flow from operations.

      In order to manage its  exposure  to price risks in the  marketing  of its
crude oil and natural  gas, the Company from time to time has entered into fixed
price delivery contracts,  financial swaps and crude oil and natural gas futures
contracts as hedging devices. To ensure a fixed price for future production, the
Company may sell a futures  contract  and  thereafter  either (i) make  physical
delivery of crude oil or natural gas to comply with such  contract or (ii) buy a
matching futures contract to unwind its futures position and sell its production
to a customer.  Such  contracts  may expose the Company to the risk of financial
loss in certain circumstances, including instances where production is less than
expected,  the Company's  customers  fail to purchase or deliver the  contracted
quantities of crude oil or natural gas, or a sudden, unexpected event materially
impacts  crude oil or natural gas prices.  Such  contracts may also restrict the
ability of the Company to benefit  from  unexpected  increases  in crude oil and
natural gas prices.

      In  connection  with the Acco Sale,  Acco entered  into a commodity  price
hedge with Christiania which was assumed by the Company and BTCo and ING Capital
in connection with the consummation of the Transactions. Under the terms of this
commodity  price  hedge,  the Company is required to receive or make  payment to
BTCo and ING Capital based on a differential  between a fixed and variable price
for crude oil and natural gas through the last  business day of November 2001 on
volumes  ranging from 8,160 barrels of crude oil to 20,000  barrels of crude oil
per month and 14,850  MMBTU of natural  gas to 87,406  MMBTU of natural  gas per
month.  Under this  agreement,  the Company  receives  fixed prices ranging from
$17.20  per barrel of crude oil to $18.55 per barrel of crude oil and $1.793 per
MMBTU of natural gas to $1.925 per MMBTU of natural gas and makes payments based
on the price for west Texas  intermediate light sweet crude oil on the NYMEX for
crude oil and the Inside FERC,  Tennessee  Gas Pipeline Co: Texas (Zone 0) price
for natural gas.

   
      Substantially  all of the  Company's  crude oil and natural gas is sold at
current  market  prices  under  short term  contracts,  as is  customary  in the
industry.  During the year ended December 31, 1996, six purchasers accounted for
approximately  61% of the Company's crude oil and natural gas sales. The Company
believes  that there are  numerous  other  companies  available  to purchase the
Company's  crude  oil and  natural  gas and that the loss of any or all of these
purchasers would not materially  affect the Company's  ability to sell crude oil
and natural gas.
    

      In Fiscal  1995,  CGGS sold its NGLs and natural gas to a  combination  of
aggregators,  short-term and longer-term  Canadian and United States  customers.
Pricing  terms in these  contracts  included  a mixture  of fixed  and  floating
prices. CGGS received an average of $0.94 per Mcf for its natural gas production
in Fiscal 1995.  For the nine months ended  October 31, 1996,  CGGS  received an
average of $1.24 per Mcf of natural gas as a result of utilizing certain hedging
arrangements.  During  Fiscal 1995,  14  purchasers  accounted for 100% of CGGS'
crude oil, NGLs and natural gas sales,  and during the nine months ended October
31,  1996,  eight  purchasers  accounted  for 100% of CGGS' crude oil,  NGLs and
natural gas sales.

      The Company  believes that  expected  improvements  in the  transportation
infrastructure in, and increased demand for natural gas from,  southwest Wyoming
and Alberta,  Canada will help to reduce the existence of basis differentials in
the pricing of natural gas produced in these areas. With basis  differentials at
relatively  high  historical  levels,  the Company  believes  that the  Canadian
Abraxas  Properties and the Wyoming Properties have the potential for increasing
revenue and asset value as these differentials  decrease without any increase in
LOE and G&A expenses.

Competition

      The Company  encounters  strong  competition  from major oil companies and
independent  operators in acquiring  properties  and leases for the  exploration
for, and production of, crude oil and natural gas.  Competition is  particularly
intense with respect to the acquisition of desirable  undeveloped  crude oil and
natural gas leases. The principal competitive factors in the acquisition of such
undeveloped  crude  oil and  natural  gas  leases  include  the  staff  and data
necessary to identify,  investigate and purchase such leases,  and the financial
resources  necessary to acquire and develop such leases.  Many of the  Company's
competitors have financial resources, staff and facilities substantially greater
than those of the Company. In addition, the producing,  processing and marketing
of crude oil and natural gas is affected by a number of factors which are beyond
the control of the Company, the effect of which cannot be accurately predicted.

      The principal raw  materials and resources  necessary for the  exploration
and production of crude oil and natural gas are leasehold  prospects under which
crude oil and natural gas reserves may be discovered,  drilling rigs and related
equipment to explore for such  reserves and  knowledgeable  personnel to conduct
all phases of crude oil and natural gas operations. The Company must compete for
such raw  materials  and  resources  with both  major  crude oil  companies  and
independent  operators.  Although the Company believes its current operating and
financial  resources are adequate to preclude any significant  disruption of its
operations in the immediate future, the continued availability of such materials
and resources to the Company cannot be assured.

      The Company will face  significant  competition  for obtaining  additional
natural gas supplies for  gathering  and  processing  operations,  for marketing
NGLs, residue gas, helium,  condensate and sulfur, and for transporting  natural
gas  and  liquids.  The  Company's  principal  competitors  will  include  major
integrated oil companies and their  marketing  affiliates and national and local
gas gatherers,  brokers,  marketers and distributors of varying sizes, financial
resources  and  experience.  Certain  competitors,  such as major  crude oil and
natural gas companies,  have capital  resources and control  supplies of natural
gas substantially greater than the Company. Smaller local distributors may enjoy
a marketing advantage in their immediate service areas. The Company will compete
against other companies in its natural gas processing business both for supplies
of natural gas and for customers to which it will sell its products. Competition
for natural gas supplies is based primarily on location of natural gas gathering
facilities  and  natural  gas  gathering   plants,   operating   efficiency  and
reliability and ability to obtain a satisfactory  price for products  recovered.
Competition for customers is based primarily on price and delivery capabilities.

Regulatory Matters

      The Company's operations are affected from time to time in varying degrees
by political  developments  and federal,  state,  provincial  and local laws and
regulations. In particular, oil and gas production operations and economics are,
or in the past have  been,  affected  by price  controls,  taxes,  conservation,
safety,  environmental,  and other laws relating to the petroleum  industry,  by
changes in such laws and by constantly changing administrative regulations.

      Price Regulations

      In the recent past, maximum selling prices for certain categories of crude
oil,  natural gas,  condensate and NGLs were subject to federal  regulation.  In
1981,  all federal price  controls over sales of crude oil,  condensate and NGLs
were lifted.  Effective January 1, 1993, the Natural Gas Wellhead  Decontrol Act
(the "Decontrol  Act")  deregulated  natural gas prices for all "first sales" of
natural gas, which includes all sales by the Company of its own production. As a
result, all sales of the Company's domestically produced crude oil, natural gas,
condensate and NGLs may be sold at market prices,  unless otherwise committed by
contract.

      Natural gas exported  from Canada is subject to regulation by the National
Energy  Board  ("NEB")  and the  government  of  Canada.  Exporters  are free to
negotiate prices and other terms with purchasers, provided that export contracts
in excess of two years must continue to meet certain criteria  prescribed by the
NEB and the  government  of Canada.  As is the case with crude oil,  natural gas
exports for a term of less than two years must be made pursuant to an NEB order,
or, in the case of exports for a longer duration, pursuant to an NEB license and
Governor in Council approval.

      The  government  of Alberta also  regulates the volume of natural gas that
may be removed from Alberta for  consumption  elsewhere based on such factors as
reserve availability, transportation arrangements and marketing considerations.

      The North American Free Trade Agreement

      On January 1, 1994,  the North  American  Free Trade  Agreement  ("NAFTA")
among the governments of the United States,  Canada and Mexico became effective.
In the context of energy  resources,  Canada  remains free to determine  whether
exports  to the  U.S.  or  Mexico  will be  allowed  provided  that  any  export
restrictions  do not: (i) reduce the  proportion  of energy  resources  exported
relative to the total supply of the energy  resource  (based upon the proportion
prevailing  in the most recent 36 month  period);  (ii)  impose an export  price
higher than the domestic price; or (iii) disrupt normal channels of supply.  All
three  countries are  prohibited  from imposing  minimum  export or import price
requirements.

      NAFTA contemplates the reduction of Mexican restrictive trade practices in
the energy sector and prohibits  discriminatory  border  restrictions and export
taxes.  The agreement  also  contemplates  clearer  disciplines on regulators to
ensure fair  implementation of any regulatory changes and to minimize disruption
of  contractual  arrangements,  which is  important  for  Canadian  natural  gas
exports.

      Natural Gas Regulation

      Historically,  interstate  pipeline companies generally acted as wholesale
merchants by  purchasing  natural gas from  producers  and  reselling the gas to
local distribution  companies and large end users.  Commencing in late 1985, the
Federal Energy Regulatory Commission (the "FERC") issued a series of orders that
have had a major impact on interstate natural gas pipeline operations, services,
and  rates,  and thus have  significantly  altered  the  marketing  and price of
natural gas.  The FERC's key rule making  action,  order No. 636 ("Order  636"),
issued in April 1992,  required each interstate pipeline to, among other things,
"unbundle" its traditional  bundled sales services and create and make available
on an open and  nondiscriminatory  basis numerous  constituent services (such as
gathering  services,  storage services,  firm and  interruptible  transportation
services,  and standby  sales and gas  balancing  services),  and to adopt a new
ratemaking methodology to determine appropriate rates for those services. To the
extent the pipeline  company or its sales affiliate makes natural gas sales as a
merchant,  it does so pursuant to private  contracts in direct  competition with
all of the sellers, such as the Company;  however,  pipeline companies and their
affiliates  were not required to remain  "merchants" of natural gas, and most of
the interstate pipeline companies have become "transporters only." In subsequent
orders,  the FERC largely  affirmed the major features of Order 636 and denied a
stay of the  implementation of the new rules pending judicial review. By the end
of 1994, the FERC had concluded the Order 636 restructuring proceedings, and, in
general,  accepted rate filings implementing Order 636 on every major interstate
pipeline.  However,  even through the  implementation of Order 636 on individual
interstate  pipelines is essentially  complete,  many of the individual pipeline
restructuring  proceedings,  as well as Order  636  itself  and the  regulations
promulgated  thereunder,  are  subject  to  pending  appellate  review and could
possibly  be changed as a result of future  court  orders.  The  Company  cannot
predict whether the FERC's orders will be affirmed on appeal or what the effects
will be on its business.

      In  recent  years the FERC  also has  pursued a number of other  important
policy  initiatives  which could  significantly  affect the marketing of natural
gas.  Some of the more  notable of these  regulatory  initiatives  include (i) a
series of orders in individual  pipeline  proceedings  articulating  a policy of
generally  approving the voluntary  divestiture  of  interstate  pipeline  owned
gathering  facilities by interstate pipelines to their affiliates (the so-called
"spin down" of  previously  regulated  gathering  facilities  to the  pipeline's
nonregulated  affiliates),  (ii) the  completion  of  rule-making  involving the
regulation of pipelines with marketing affiliates under Order No. 497, (iii) the
FERC's ongoing efforts to promulgate  standards for pipeline electronic bulletin
boards and electronic data exchange,  (iv) a generic inquiry into the pricing of
interstate  pipeline  capacity,  (v)  efforts to refine  the FERC's  regulations
controlling  operation of the secondary market for released  pipeline  capacity,
and  (vi)  a  policy   statement   regarding   market   based  rates  and  other
non-cost-based rates for interstate pipeline  transmission and storage capacity.
Several of these initiatives are intended to enhance  competition in natural gas
markets,  although  some,  such as "spin downs," may have the adverse  effect of
increasing the cost of doing business on some in the industry as a result of the
monopolization of those facilities by their new,  unregulated  owners.  The FERC
has attempted to address some of these concerns in its orders  authorizing  such
"spin downs," but it remains to be seen what effect these  activities  will have
on access to markets and the cost to do business. As to all of these recent FERC
initiatives, the ongoing, or, in some instances,  preliminary evolving nature of
these regulatory  initiatives  makes it impossible at this time to predict their
ultimate impact on the Company's business.

      Recent  orders of the FERC have been more liberal in their  reliance  upon
traditional  tests for determining what facilities are "gathering" and therefore
exempt  from  federal  regulatory  control.  In many  instances,  what  was once
classified as  "transmission"  may now be classified as "gathering." The Company
transports  certain of its  natural gas through  gathering  facilities  owned by
others,  including  interstate  pipelines,  under existing long term contractual
arrangements.  With respect to item (i) in the preceding  paragraph,  on May 27,
1994,  the FERC issued orders in the context of the "spin off" or "spin down" of
interstate pipeline owned gathering facilities.  A "spin off" is a FERC-approved
sale of such facilities to a non-affiliate. A "spin down" is the transfer by the
interstate  pipeline of its gathering  facilities  to an affiliate.  A number of
spin offs and spindowns have been approved by the FERC and implemented. The FERC
held  that  it  retains  jurisdiction  over  gathering  provided  by  interstate
pipelines,  but  that it  generally  does not have  jurisdiction  over  pipeline
gathering affiliates, except in the event of affiliate abuse (such as actions by
the affiliate  undermining open and  nondiscriminatory  access to the interstate
pipeline).  These  orders  require  nondiscriminatory  access for all sources of
supply and prohibit the tying of pipeline  transportation service to any service
provided by the pipeline's gathering  affiliate.  On November 30, 1994, the FERC
issued a series of rehearing  orders largely  affirming the May 27, 1994 orders.
The FERC now  requires  interstate  pipelines to not only seek  authority  under
Section 7(b) of the Natural Gas Act of 1938 (the "NGA") to abandon  certificated
facilities,  but also to seek authority  under Section 4 of the NGA to terminate
service from both certificated and  uncertificated  facilities.  On December 31,
1994, an appeal was filed with the U.S. Court of Appeals for the D.C. Circuit to
overturn  three of the FERC's  November 30,  1994,  orders.  The Company  cannot
predict what the ultimate  effect of the FERC's  orders  pertaining to gathering
will have on its production and marketing,  or whether the Appellate  Court will
affirm the FERC's orders on these matters.

      State and Other Regulation

      All of the jurisdictions in which the Company owns producing crude oil and
natural gas properties have statutory provisions  regulating the exploration for
and  production  of crude oil and natural gas,  including  provisions  requiring
permits for the drilling of wells and maintaining bonding  requirements in order
to drill or operate wells and provisions  relating to the location of wells, the
method of  drilling  and  casing  wells,  the  surface  use and  restoration  of
properties  upon which wells are  drilled and the  plugging  and  abandoning  of
wells. The Company's  operations are also subject to various  conservation  laws
and  regulations.  These  include the  regulation  of the size of  drilling  and
spacing  units or proration  units and the density of wells which may be drilled
and the unitization or pooling of crude oil and natural gas properties.  In this
regard,  some  states  allow the  forced  pooling  or  integration  of tracts to
facilitate exploration while other states rely on voluntary pooling of lands and
leases.  In  addition,  state  conservation  laws  establish  maximum  rates  of
production from crude oil and natural gas wells,  generally prohibit the venting
or  flaring  of  natural  gas and  impose  certain  requirements  regarding  the
ratability of  production.  Some states,  such as Texas and  Oklahoma,  have, in
recent years, reviewed and substantially revised methods previously used to make
monthly  determinations  of  allowable  rates  of  production  from  fields  and
individual  wells.  The effect of these  regulations  is to limit the amounts of
crude oil and natural gas the Company can produce  from its wells,  and to limit
the number of wells or the location at which the Company can drill.

      State  regulation  of  gathering  facilities  generally  includes  various
safety,  environmental,  and  in  some  circumstances,  non-discriminatory  take
requirements,  but  does not  generally  entail  rate  regulation.  Natural  gas
gathering has received greater regulatory scrutiny at both the state and federal
levels in the wake of the interstate pipeline restructuring under Order 636. For
example,   Oklahoma  recently  enacted  a  prohibition  against   discriminatory
gathering rates and certain Texas regulatory  officials have expressed  interest
in evaluating similar rules.

      Royalty Matters

      United States

      By a letter dated May 3, 1993,  directed to thousands of producers holding
interests in federal leases,  the United States  Department of the Interior (the
"DOI")  announced its  interpretation  of existing federal leases to require the
payment of royalties on past natural gas contract settlements which were entered
into in the 1980s and 1990s to resolve,  among  other  things,  take-or-pay  and
minimum take claims by producers against  pipelines and other buyers.  The DOI's
letter  sets forth  various  theories  of  liability,  all  founded on the DOI's
interpretation  of the term  "gross  proceeds"  as used in  federal  leases  and
pertinent  federal  regulations.  In an effort to  ascertain  the amount of such
potential  royalties,  the DOI  sent a letter  to  producers  on June 18,  1993,
requiring producers to provide all data on all natural gas contract settlements,
regardless of whether  natural gas produced from federal leases were involved in
the settlement.  The Company received a copy of this information  demand letter.
In response to the DOI's action, in July 1993, various industry associations and
others filed suit in the United States District Court for the Northern  District
of West Virginia seeking an injunction to prevent the collection of royalties on
natural gas contract  settlement amounts under the DOI's theories.  The lawsuit,
styled  "Independent  Petroleum  Association v. Babbitt," was transferred to the
United States  District  Court in  Washington,  D.C. On June 4, 1995,  the Court
issued a ruling in this case  holding that  royalties  are payable to the United
States on natural  gas  contract  settlement  proceeds  in  accordance  with the
Minerals Management Service's May 3, 1993, letter to producers.  This ruling was
appealed  and is now pending in the D.C.  Circuit  Court of  Appeals.  The DOI's
claim in a bankruptcy  proceeding  against a producer  based upon an  interstate
pipeline's  earlier  buy-out of the  producer's  natural gas sale  contract  was
rejected by the Federal Bankruptcy Court in Lexington, Kentucky, in a proceeding
styled  "Century  Offshore  Management  Corp."  While the  facts of the  Court's
decision do not involve all of the DOI's  theories,  the Court found on those at
issue  that the  DOI's  theories  were  without  legal  merit,  and the  Court's
reasoning  suggests  that the DOI's other claims are similarly  deficient.  This
decision  was  upheld  in the  District  Court and is now on appeal in the Sixth
Circuit Court of Appeals. Because both the "Independent Petroleum Association v.
Babbitt" and "Century  Offshore  Management Corp." decisions have been appealed,
and because of the complex  nature of the  calculations  necessary  to determine
potential  additional  royalty  liability  under  the  DOI's  theories,   it  is
impossible to predict what, if any,  additional or different royalty  obligation
the DOI may assert or  ultimately  be entitled to recover with respect to any of
the Company's prior natural gas contract settlements.

      Canada

      In addition to Canadian federal regulation,  each province has legislation
and  regulations  that  govern  land  tenure,   royalties,   production   rates,
environmental  protection and other matters. The royalty regime is a significant
factor in the  profitability of crude oil and natural gas production.  Royalties
payable on  production  from lands  other than  Crown  lands are  determined  by
negotiations  between the  mineral  owner and the lessee.  Crown  royalties  are
determined  by  governmental  regulation  and  are  generally  calculated  as  a
percentage  of the  value of the  gross  production,  and the rate of  royalties
payable  generally  depends  in  part  on  prescribed  preference  prices,  well
productivity,  geographical  location,  field  discovery  date  and the type and
quality of the petroleum product produced.

      From time to time the governments of Canada, Alberta and Saskatchewan have
established  incentive  programs  which have included  royalty rate  reductions,
royalty  holidays and tax credits for the purpose of  encouraging  crude oil and
natural gas exploration or enhanced planning projects.

      Regulations made pursuant to the Mines and Minerals Act (Alberta)  provide
various  incentives for exploring and developing  crude oil reserves in Alberta.
Crude oil produced  from  qualifying  development  wells that were spudded on or
after  November  1, 1991,  and prior to August 1, 1993 (or spudded in August but
licensed  prior thereto) are eligible for a 12-month  royalty  exemption up to a
maximum of CDN$400,000.  Exploration  wells spudded on or after November 1, 1991
and prior to April 1, 1992,  or if drilled in northern  Alberta or the Foothills
area of Alberta prior to April 1, 1993, are entitled to a 24-month  exemption to
a maximum of CDN$1.0 million.  A 24-month royalty  reduction (up to December 31,
1996) is available for crude oil produced from qualifying  horizontal extensions
commenced  prior  to  January  1,  1995.  Crude  oil  produced  from  horizontal
extensions  commenced at least five years after the well was originally  spudded
may also qualify for a royalty  reduction.  Wells  drilled prior to September 1,
1990, and reactivated  between November 1, 1991 and October 1, 1992,  having had
no production  between September 1, 1990 and November 1, 1991, are entitled to a
five year royalty  exemption to a maximum of 4,000 cubic metres.  An 8,000 cubic
metres  exemption is available to  production  from a well that has not produced
for a 12-month period, if resuming  production in October,  November or December
of 1992 or January  of 1993,  or for a 24-month  period if  resuming  production
after  January 31, 1993.  In addition,  crude oil  production  from eligible new
field and new pool wildcat  wells and deeper pool test wells spudded or deepened
after  September  30, 1992,  is entitled to a 12-month  royalty  exemption (to a
maximum of $1 million). Crude oil produced from low productivity wells, enhanced
recovery  schemes (such as injection  wells) and  experimental  projects is also
subject to royalty reductions.

      The Alberta  government also introduced the Third Tier Royalty with a base
rate of 10% and a rate cap of 25% from oil pools  discovered after September 30,
1992.  The new oil  royalty  reserved  to the Crown has a base rate of 10% and a
rate cap of 30% and for old oil a base rate of 10% and a rate cap of 35%.

      Effective  January 1, 1994,  the  calculation  and  payment of natural gas
royalties  became subject to a simplified  process.  The royalty reserved to the
Crown, subject to various incentives,  is between 15% or 30%, in the case of new
natural gas, and between 15% and 35%, in the case of old natural gas,  depending
upon a prescribed or corporate  average  reference  price.  Natural gas produced
from qualifying exploratory gas wells spudded or deepened after July 1, 1985 and
before June 1, 1988  continues  to be  eligible  for a royalty  exemption  for a
period of 12 months,  or such later time that the value of the exempted  royalty
quantity  equals  a  prescribed  maximum  amount.   Natural  gas  produced  from
qualifying  intervals  in eligible  natural  gas wells  spudded or deepened to a
depth below 2,500 meters is also subject to a royalty  exemption,  the amount of
which depends on the depth of the well.

      In  Alberta,  a producer of crude oil or natural gas is entitled to credit
against the royalties  payable to the Crown by virtue of the Alberta Royalty Tax
Credit ("ARTC") program. The ARTC program is based on a price-sensitive formula,
and the ARTC rate  currently  varies  between 75% for prices for crude oil at or
below  CDN $100 per  cubic  metre  and 35% for  prices  above CDN $210 per cubic
metre.  The ARTC rate is  currently  applied to a maximum of CDN $2.0 million of
Alberta  Crown  royalties  payable  for each  producer  or  associated  group of
producers. Crown royalties on production from producing properties acquired from
corporations claiming maximum entitlement to ARTC will generally not be eligible
for ARTC. The rate is  established  quarterly  based on average "par price",  as
determined  by the  Alberta  Department  of Energy  for the  previous  quarterly
period.

      Crude oil and natural gas royalty  holidays  and  reductions  for specific
wells reduce the amount of Crown  royalties paid to the provincial  governments.
The ARTC  program  provides  a rebate  on Crown  royalties  paid in  respect  of
eligible producing properties.

      The Government of  Saskatchewan  revised its fiscal regime for the oil and
gas industry  effective  January 1, 1994. Some royalties on wells existing as of
that date will remain  unchanged  and  therefore  subject to various  periods of
royalty/tax  reduction.  While a number of incentives were eliminated or reduced
(such as incentives for vertical infill wells and lower cost horizontal  wells),
new  incentive  programs were  initiated to encourage  greater  exploration  and
development  activity  in the  province.  The  new  fiscal  regime  provides  an
incentive to encourage  the drilling of new vertical oil wells through a revised
royalty/tax structure for new vertical oil wells and incremental production from
new or expanded  water flood  projects.  This "third tier" Crown royalty rate is
price  sensitive  and varies  between heavy and non-heavy oil (from a minimum of
10% for heavy oil at a base  price to a maximum  of 35% for  non-heavy  oil at a
price above the base price). Previous time-based royalty/tax holidays applicable
to vertically drilled oil wells have been replaced with volume-based royalty/tax
reduction  incentives  in which a maximum  royalty  of 5% will  apply to various
volumes depending on the depth and nature of the well (up to 25,000 cubic metres
of oil in the case of deep exploratory wells). The maximum royalty applicable to
the  first  12,000  cubic  metres of oil has been  increased  from 5% to 10% for
production from certain horizontal wells. In addition,  royalty/tax holidays for
deep  horizontal  oil wells have been replaced with a 25,000 cubic metres volume
incentive (5% maximum royalty).  Oil production from qualifying  reactivated oil
wells are subject to a maximum  new royalty  rate of 5% for the first five years
following  re-activation in the case of wells reactivated after 1993 and shut-in
or suspended  prior to January 1, 1993.  With respect to qualifying  exploratory
natural gas wells,  the first 25 million  cubic  metres of natural gas  produced
will be subject to an incentive maximum royalty rate of 5%.

      Environmental Matters

      The Company's operations are subject to numerous federal, state, and local
laws and regulations controlling the discharge of materials into the environment
or  otherwise  relating to the  protection  of the  environment,  including  the
Comprehensive Environment Response,  Compensation, and Liability Act ("CERCLA"),
also known as the  "Federal  Superfund  Law." Such laws and  regulations,  among
other things,  impose  absolute  liability upon the lessee under a lease for the
cost of clean up of pollution resulting from a lessee's operations,  subject the
lessee to liability for pollution  damages,  may require suspension or cessation
of operations in affected  areas,  and impose  restrictions  on the injection of
liquids into subsurface aquifers that may contaminate  groundwater.  The Company
maintains  insurance  against costs of clean-up  operations,  but it's not fully
insured  against all such risks. A serious  incident of pollution may, as it has
in the past,  also result in the DOI requiring  lessees under federal  leases to
suspend or cease  operation in the affected area. In addition,  the recent trend
toward  stricter  standards in  environmental  legislation  and  regulation  may
continue.  For instance,  legislation has been proposed in Congress from time to
time that would reclassify  certain crude oil and natural gas production  wastes
as  "hazardous  wastes"  which  would  make  the  reclassified  exploration  and
production wastes subject to much more stringent handling,  disposal,  and clean
up  requirements.  If such  legislation  were to be  enacted,  it  could  have a
significant  impact on the Company's  operating  costs, as well as the crude oil
and natural gas industry in general.  State  initiatives to further regulate the
disposal of crude oil and natural gas wastes are also pending in certain states,
and these various matters could have a similar impact on the Company.

      The  Company's  Canadian  operations  are also  subject  to  environmental
regulation  pursuant  to local,  provincial  and federal  legislation.  Canadian
environmental legislation provides for restrictions and prohibitions on releases
or emissions of various  substances  produced in association  with certain crude
oil and natural gas industry operations and can affect the location of wells and
facilities and the extent to which exploration and development is permitted.  In
addition,  legislation  requires that well and facilities sites be abandoned and
reclaimed  to the  satisfaction  of  provincial  authorities.  A breach  of such
legislation  may  result in the  imposition  of fines or  issuance  of  clean-up
orders.  Environmental legislation in Alberta has undergone a major revision and
has been  consolidated in the  Environmental and Enhancement Act . Under the new
Act, environmental standards and compliance for releases, clean-up and reporting
are stricter.  Also, the range of enforcement actions available and the severity
of  penalties  have  been  significantly  increased.  These  changes  will  have
incremental effect on the cost of conducting operations in Alberta.

      The Company is not currently  involved in any  administrative  or judicial
proceedings  arising  under  domestic  or  foreign  federal,   state,  or  local
environmental  protection  laws and  regulations  which  would  have a  material
adverse effect on the Company's financial position or results of operations.



<PAGE>


Title to Properties

      As is  customary  in the crude oil and natural gas  industry,  the Company
makes only a cursory  review of title to  undeveloped  crude oil and natural gas
leases at the time they are acquired by the Company.  However,  before  drilling
commences, the Company requires a thorough title search to be conducted, and any
material  defects in title are remedied  prior to the time actual  drilling of a
well on the lease begins.  To the extent title opinions or other  investigations
reflect title defects,  the Company,  rather than the seller of the  undeveloped
property, is typically obligated to cure any title defect at its expense. If the
Company  were unable to remedy or cure any title defect of a nature such that it
would not be  prudent to  commence  drilling  operations  on the  property,  the
Company  could  suffer a loss of its  entire  investment  in the  property.  The
Company  believes  that it has  good  title to its  crude  oil and  natural  gas
properties, some of which are subject to immaterial encumbrances,  easements and
restrictions.  The crude oil and natural gas properties owned by the Company are
also typically  subject to royalty and other similar non-cost bearing  interests
customary  in the  industry.  The  Company  does not  believe  that any of these
encumbrances or burdens will materially affect the Company's ownership or use of
its properties.

Employees

      As of December 20, 1996, Abraxas had 43 full-time employees, including two
executive officers, two non-executive  officers,  five petroleum engineers,  one
landman,  one geologist,  eleven secretarial and clerical personnel and 21 field
personnel.  Additionally,  Abraxas retains  contract pumpers on a month-to-month
basis. The Company retains independent geologic and engineering consultants from
time to time on a limited basis and expects to continue to do so in the future.

Office Facilities

      The  Company's  executive  and  administrative  offices are located at 500
North Loop 1604 East,  Suite 100, San Antonio,  Texas 78232.  The Company owns a
16%  limited  partnership  interest  in the  partnership  which owns this office
building.  The Company  also has an office in  Midland,  Texas.  These  offices,
consisting  of  approximately  12,650  square feet in San Antonio and 960 square
feet in Midland, are leased until March 2005 at an aggregate rate of $14,194 per
month.

Other Properties

      The Company owns 10 acres of land, an office building, workshop, warehouse
and house in Sinton,  Texas,  160 acres of land in Coke County,  Texas and a 50%
interest in  approximately  2.0 acres of land in Bexar County,  Texas. All three
properties are used for the storage of tubulars and production equipment.
The Company also owns 19 vehicles which are used in the field by employees.

Litigation

      From time to time,  the  Company is  involved  in  litigation  relating to
claims  arising out of its  operations  in the normal  course of  business.  The
Company is not  currently  engaged in any legal  proceedings  that are expected,
individually  or in the  aggregate,  to have a  material  adverse  effect on the
Company.



<PAGE>


                                   MANAGEMENT

Directors and Executive Officers

      Set forth below are the names, ages, years of service and positions of the
executive  officers  and  directors  of Abraxas , as well as  certain  executive
officers of Cascade and Canadian  Abraxas.  The term of the Class I directors of
Abraxas  expires in 1999,  the Class II directors  expires in 1997 and the Class
III directors in 1998.

Name                 Age                      Office                      Class

Robert    L.    G.   46    Chairman  of the Board,  President  and Chief
Watson                     Executive  Officer of  Abraxas;  Chairman  of
                           the Board and  director of Cascade;  Chairman
                           of  the  Board,  President  and  director  of     III
                           Canadian Abraxas
Chris E. Williford   45    Executive  Vice  President,  Chief  Financial
                           Officer,  Treasurer  and director of Abraxas;
                           Vice  President  and  Assistant  Secretary of     III
                           Canadian Abraxas
   
Robert Patterson     39    Vice President/Operations of Abraxas               --
Stephen T. Wendel    48    Vice President/Land and Marketing of Abraxas       --
Franklin A. Burke    62    Director of Abraxas                                 I
Harold D. Carter     57    Director of Abraxas                                 I
Robert D. Gershen    43    Director of Abraxas                                 I
Richard M.   
Kleberg, III         54    Director of Abraxas                                II
James C. Phelps      74    Director of Abraxas                               III
Paul  A.   Powell,   
Jr.                  51    Director of Abraxas                                II
Richard M. Riggs     76    Director of Abraxas                                II
Roger L. Bruton      64    Executive  Vice  President  and  director  of
    
                           Cascade;   Executive   Vice   President   and      --
                           director of Canadian Abraxas
Donald A. Engle      53    President and director of Cascade;  Secretary      --
                           and director of Canadian Abraxas

      Robert L. G. Watson has served as Chairman of the Board, President,  Chief
Executive  Officer and a director of Abraxas  since  1977.  Since May 1996,  Mr.
Watson has also  served as Chairman of the Board,  Chief  Executive  Officer and
director of Grey Wolf and  Chairman  of the Board and a director of Cascade.  In
November 1996, Mr. Watson was elected Chairman of the Board,  President and as a
director of Canadian Abraxas.  Prior to joining Abraxas, Mr. Watson was employed
in various petroleum engineering positions with Tesoro Petroleum Corporation,  a
crude oil and natural gas exploration and production company,  from 1972 through
1977, and DeGolyer & McNaughton, an independent petroleum engineering firm, from
1970 to 1972.  Mr.  Watson  received a Bachelor of Science  degree in Mechanical
Engineering from Southern Methodist  University in 1972 and a Master of Business
Administration degree from the University of Texas at San Antonio in 1974.

      Chris E.  Williford  was  elected  Vice  President,  Treasurer  and  Chief
Financial  Officer of Abraxas in January 1993,  and as Executive  Vice President
and a director  of Abraxas in May 1993.  In November  1996,  Mr.  Williford  was
elected  Vice  President,  Assistant  Secretary  and as a director  of  Canadian
Abraxas.  Prior to joining Abraxas, Mr. Williford was Chief Financial Officer of
American Natural Energy Corporation, a crude oil and natural gas exploration and
production  company,  from July 1989 to  December  1992 and  President  of Clark
Resources Corp., a crude oil and natural gas exploration and production company,
from  January  1987 to May 1989.  Mr.  Williford  received a Bachelor of Science
degree in Business Administration from Pittsburgh State University in 1973.

      Robert Patterson has served as Vice  President/Operations of Abraxas since
December  1995.  From 1986 to 1995,  Mr.  Patterson  was  employed by Parker and
Parsley Petroleum USA most recently as a Gulf Coast Division  Manager.  Prior to
that, Mr.  Patterson was District  Manager for HCW Exploration from 1983 to 1986
and Drilling  Engineer  with  Hilliard  Oil and Gas from 1980 to 1983.  Prior to
that,  he was a Drilling  Engineer  with Texas  Pacific Oil Company from 1979 to
1980. Mr. Patterson is a registered  Professional Engineer in the state of Texas
and graduated  with a Bachelor of Science degree in petroleum  engineering  from
the University of Texas in 1979.

      Stephen T.  Wendel  has served as Vice  President/Land  and  Marketing  of
Abraxas since 1990 and Corporate  Secretary of Abraxas since 1994.  From 1982 to
1990,  Mr. Wendel served  Abraxas as Manager of Joint  Interests and Natural Gas
Contracts.  Prior to joining  Abraxas,  Mr.  Wendel was employed in  accounting,
auditing and marketing  positions with Tenneco Oil Company and Tesoro  Petroleum
Corporation,   both  crude  oil  and  natural  gas  exploration  and  production
companies.  Mr. Wendel received a Bachelor of Business  Administration degree in
Accounting from Texas Lutheran University in 1971.

      Franklin A. Burke,  a director of Abraxas  since June 1992,  has served as
President and Treasurer of Venture  Securities  Corporation since 1971, where he
is in charge of research and  portfolio  management.  He has also been a general
partner and director of Burke,  Lawton,  Brewer & Burke, a securities  brokerage
firm, since 1964, where he is responsible for research and portfolio management.
Mr.  Burke also  serves as a director of NB  Instruments,  Inc.,  an  instrument
products company,  Omega Institute,  a job training entity, and Starkey Chemical
Process Co., a chemical  processing  company.  Mr. Burke  received a Bachelor of
Science  degree in Finance  from Kansas  State  University  in 1955,  a Master's
degree in  Finance  from  University  of  Colorado  in 1960 and  studied  at the
graduate level at the London School of Economics from 1962 to 1963.

      Harold D. Carter,  a director of Abraxas  since May 1996,  has served as a
member  of  the   management   committee   of  Brigham  Oil  &  Gas,   L.P.,   a
three-dimensional  seismic exploration  company,  since May 1992. Mr. Carter has
also served as a consultant to Associated  Energy Managers,  Inc., an investment
manager  specializing  in structuring  and managing  private  investments in the
energy  industry,  since  October  1994.  From 1991 to 1992,  Mr.  Carter  was a
consultant  to various  companies  and  investors  involved in the crude oil and
natural  gas  industry.  Prior to 1991,  Mr.  Carter  was  employed  by  Pacific
Enterprises  Oil  Company,  where  he  was an  Executive  Vice  President  until
September 1990 and a consultant  from  September 1990 until December 1990.  From
1986 to 1989,  Mr.  Carter served as President  and Chief  Operating  Officer of
Sabine Corporation.

      Robert D.  Gershen,  a director of Abraxas  since May 1995,  has served as
President  of  Associated   Energy   Managers,   Inc.,  an  investment   manager
specializing  in  structuring  and managing  private  investments  in the energy
industry,  since July 1989. Mr.  Gershen has served as an investment  advisor to
Endowment  Energy  Partners,  L.P. and  Endowment  Energy  Partners II,  Limited
Partnership, limited partnerships formed to make loans to companies in the crude
oil and natural gas business, since October 1989 and January 1993, respectively.

      Richard M. Kleberg,  III, a director of Abraxas since  December  1983, has
held the  position  of  managing  partner of SFD  Enterprises,  Ltd.,  a private
investment  partnership,  since  1980.  Mr.  Kleberg has served on the boards of
directors of Cullen Frost  Bankers,  Inc., a bank holding  company,  since 1992;
1776  Restaurants,  Inc., a restaurant  concern,  since 1983; The Frost National
Bank of San Antonio, a national banking  association,  since 1984; and Kleberg &
Co.  Bankers,  Inc., a bank holding  company,  since 1980.  Mr.  Kleberg holds a
Bachelor of Science degree in Political Science from Trinity University.

      James C. Phelps,  a director of Abraxas since  December  1983,  has been a
consultant to crude oil and natural gas  exploration  and  production  companies
such as Panhandle Producing Company and Tesoro Petroleum Corporation since April
1981.  Mr.  Phelps has served as a director of Grey Wolf since April 1995 and of
Cascade since January  1996.  From April 1995 to May 1996,  Mr. Phelps served as
Chairman of the Board and Chief Executive Officer of Grey Wolf, and from January
1996 to May  1996,  he  served as  President  of  Cascade.  From  March  1983 to
September  1984,  he served as President of Osborn  Heirs  Company,  a privately
owned crude oil  exploration  and production  company based in San Antonio.  Mr.
Phelps was President and Chief Operating Officer of Tesoro Petroleum Corporation
from 1971 to 1981 and prior to that was Senior Vice  President  and Assistant to
the  President of  Continental  Oil  Company.  He received a Bachelor of Science
degree in Industrial  Engineering  and a Master of Science  degree in Industrial
Engineering from Oklahoma State University.

      Paul A.  Powell,  Jr., a director  of Abraxas  since  1987,  is  currently
Trustee  of the Paul A.  Powell  Trust  and has  served  as Vice  President  and
Director of  Mechanical  Development  Co.,  Inc., a tool and die and  production
machine  company,  since 1984.  He also serves as trustee of sixteen  investment
trusts.  Mr.  Powell is a director and officer of Frameco,  Inc., a tool and die
and  production  machine  company,  Somerset  Investments,  Ltd.,  an investment
company,  and Powell Lake  Properties,  a real estate  investment and management
company.  He  attended  Emory and Henry  College  and  graduated  from  National
Business College with a degree in Accounting.

      Richard M. Riggs,  a director of Abraxas  since 1985,  is a  self-employed
geological  consultant.  He served as Vice President of Petro Consultants Energy
Corporation,  a crude oil and natural gas  exploration  and production  company,
from June 1978 to December  1984.  Mr. Riggs has served as a director of Cascade
since May 1996. He has previously been employed by Tesoro Petroleum Corporation,
a crude oil and natural gas exploration and production  company,  as Exploration
Vice President for North America, and prior to that time was Manager of Domestic
Exploration  for Ashland Oil, Inc., a crude oil and natural gas  exploration and
production company.  Mr. Riggs graduated with a Bachelors degree in Geology from
Dartmouth College and a Masters degree in Geology from Columbia University.

      Roger L. Bruton is currently  Executive  Vice  President and a director of
Cascade.  From January 1996 to October  1996, he served as President of Cascade.
In November 1996, Mr. Bruton was elected Vice President of Canadian  Abraxas and
in December 1996 was elected as a director of Canadian Abraxas. Prior to joining
Cascade,  Mr.  Bruton  served as a geologist  with  Panhandle  Eastern  Pipeline
Company from 1958 to 1963.  From 1976 to 1977 he served as Regional  Exploration
Manager for Anadarko  Production  Company. He also served as Exploration Manager
for the western United States and Canada for General Crude Oil Company from 1977
to 1979.  From 1984 to 1990,  Mr.  Bruton  served as  President  of Western  Oil
Corporation and Plains Petroleum Corporation,  both of which are subsidiaries of
KN Energy.  Mr.  Bruton was Regional  General  Manager of Anadarko  Petroleum of
Canada Ltd. from 1972 to 1976. Mr. Bruton received a Bachelors of Science degree
in  Geology  and a Masters  of  Science  degree in  Geology  from  Kansas  State
University.

      Donald A. Engle,  is currently  President and a director of Cascade.  From
January  1996 to  October  1996,  he served as Vice  President  of  Cascade.  In
November  1996,  Mr. Engle was elected  Secretary  and as a director of Canadian
Abraxas.  From 1985 to 1995, he was President of Sapphire Resources,  Ltd. Prior
to that, Mr. Engle served as President of Neomar Resources  Limited from 1980 to
1985 and as General Manager of Anadarko Petroleum of Canada Limited from 1976 to
1979.  Mr. Engle  received a Bachelor of Commerce  degree from the University of
Saskatchewan.



<PAGE>


                             EXECUTIVE COMPENSATION

Compensation Summary

      The following  table sets forth a summary of  compensation  for the fiscal
years ended December 31, 1993,  1994 and 1995 paid by the Company to Robert L.G.
Watson, the Chairman of the Board,  President and Chief Executive Officer of the
Company and Chris E. Williford,  the Executive Vice  President,  Chief Financial
Officer and  Treasurer  of the Company.  The Company did not have any  executive
officers other than Messrs.  Watson and Williford  whose total annual salary and
bonus exceeded $100,000 for the years ended December 31, 1993, 1994 and 1995.

                                                             Long-Term
                                                           Compensation
                                                           Awards-Number
                                                             of Shares
                                             Annual         Underlying
                                          Compensation
     Name and Principal         Year       Salary ($)      Options/SARs
           Position
                                         ----------------  --------------

  Robert L. G. Watson           1993     123,977(1)(2)     800,000 (3)
  Chairman of the Board,        1994     157,450(1)(4)        --
  President     and    Chief    1995     108,281(1)(4)      60,000 (6)
  Executive Officer (2)                  

  Chris E. Williford            1993      78,374            20,000 (6)
  Executive Vice  President,    1994     101,028              --
  Chief  Financial   Officer    1995     115,795(7)         20,000 (6)
  and Treasurer
- -----------

(1) Mr. Watson  received  repayments of loans to Abraxas of $54,826 during 1993,
    $287,940  during 1994 and $354,677  during 1995. See "Certain  Relationships
    and Related Transactions."
(2) Includes $50,000 of stock awards and $73,977 of salary.
(3) On May 4, 1993,  Mr.  Watson,  who at the time was  Chairman of the Board of
    Castle  Minerals,  Inc.  ("CMI"),  approximately  86% of the common stock of
    which was owned  indirectly by the Company at that time, was awarded options
    to purchase 800,000 shares of CMI Common Stock for $0.13 per share. On April
    19,  1994,  the  Company  sold its  interests  in CMI and all of the options
    previously granted to Mr. Watson were terminated.
(4) Includes $53,750 of stock awards and $103,700 of salary.
(5) Includes $1,093 of stock awards and $107,188 of salary.
(6) Represents  the  number of  options  to  purchase  Common  Stock  which were
    exercisable as of the end of the respective years.
(7) Includes $8,607 of stock awards and $107,188 of salary.

Stock Option Plans

      Pursuant to the Abraxas Petroleum  Corporation 1984 Incentive Stock Option
Plan (the "ISO Plan"),  the Abraxas  Petroleum  Corporation 1993 Key Contributor
Stock Option Plan (the "1993 Plan") and the Abraxas  Petroleum  Corporation 1994
Long Term  Incentive  Plan (the  "LTIP"),  the Company  grants to employees  and
officers  of the  Company  (including  directors  of the  Company  who are  also
employees)  incentive  stock options and  non-qualified  stock options.  The ISO
Plan, the 1993 Plan and the LTIP are administered by the Compensation  Committee
of the Board of  Directors  which,  based upon the  recommendation  of the Chief
Executive  Officer,  determines the number of shares subject to each option.  In
addition  to  the  ability  to  grant  either   incentive   stock   options  and
non-qualified stock options under the LTIP, the Compensation Committee may grant
or award (a) stock  appreciation  rights in  conjunction  with stock  options or
independently, (b) restricted stock or (c) other stock-based awards to executive
and other key employees of the Company.



<PAGE>


Employment Agreements

      The  Company has  entered  into  employment  agreements  (the  "Employment
Agreements") with each of Mr. Watson and Mr.  Williford,  pursuant to which each
of Messrs.  Watson and Williford will receive  compensation  as determined  from
time to time by the  Board in its sole  discretion.  The  Employment  Agreements
terminate on December 31, 1996 except that the term of the Employment Agreements
may be  automatically  extended for an  additional  year if by December 1 of the
prior year neither the Company nor Mr. Watson or Mr. Williford,  as the case may
be, has given  notice  that it does not wish to extend  the term.  Except in the
event of a change in  control,  at all times  during the term of the  Employment
Agreements,  each of Mr. Watson's and Mr. Williford's  employment is at will and
may be terminated by the Company for any reason  without  notice or cause.  If a
change in control  occurs  during the term of the  Employment  Agreement  or any
extension thereof,  the expiration date of Mr. Watson's Employment  Agreement is
automatically  extended  to a date no  earlier  than four  years  following  the
effective  date  of such  change  in  control  and  the  expiration  date of Mr.
Williford's  Employment Agreement is automatically extended to a date no earlier
than three years  following  the effective  date of such change in control.  If,
following a change in control,  Mr.  Watson's or Mr.  Williford's  employment is
terminated  other  than  for  Cause  (as  defined  in  each  of  the  Employment
Agreements) or Disability (as defined in each of the Employment Agreements),  by
reason of Mr. Watson's or Mr.  Williford's  death or retirement or by either Mr.
Watson or Mr.  Williford,  as the case may be,  other  than for Good  Reason (as
defined in each of the Employment Agreements),  then Mr. Watson will be entitled
to receive a lump sum payment equal to four times his annual base salary and Mr.
Williford  will be entitled  to receive a lump sum payment  equal to three times
his annual base  salary.  If any such lump sum  payment  would  individually  or
together with any other amounts paid or payable  constitute an "excess parachute
payment"  within the meaning of Section 280G  ("Section  280G") of the Code, and
applicable regulations  thereunder,  the amounts to be paid will be increased so
that Mr.  Watson  or Mr.  Williford,  as the case may be,  will be  entitled  to
receive the amount of compensation provided in his contract after payment of the
tax imposed by Section 280G.

Compensation of Directors

Non-Qualified Stock Option Plan

      Messrs.  Burke,  Kleberg,  Phelps,  Powell and Riggs have  previously been
granted  options to purchase  8,900 shares of Common  Stock under the  Company's
1984  Non-Qualified  Stock  Option Plan (the  "Non-Qualified  Plan").  There are
currently outstanding options to purchase 8,900 shares of Common Stock under the
Non-Qualified Plan at an exercise price of $6.75 per share.

Restricted Share Plan for Directors

      Pursuant to the Abraxas  Petroleum  Corporation  Restricted Share Plan for
Directors  (the  "Director  Plan"),  each  director of the  Company,  other than
Messrs. Watson and Williford, is entitled to receive a grant of shares of Common
Stock for attendance at regular and special  meetings of the Board of Directors.
Each  eligible  director of the  Company  was issued 400 shares of Common  Stock
during 1994 as an initial grant under the Director Plan and thereafter  receives
a number of  shares of Common  Stock  equal to the  product  of 1,000  times the
Capitalization  Factor (as defined in the Director  Plan) divided by the Average
Stock Price (as defined in the Director Plan) as of the date of a meeting of the
Board. For 1995, each of the directors,  received the number of shares of Common
Stock set forth opposite his name under the Director Plan:

                                                              Number of
Name                                                           Shares
                                                             ------------
Franklin M. Burke                                                365
Robert D. Gershen                                                365
Richard M. Kleberg                                               659
James C. Phelps                                                  659
Paul A. Powell                                                   365
Richard M. Riggs                                                 659

Director Stock Option Plan

      Pursuant to the Abraxas Petroleum  Corporation Director Stock Option Plan,
each  non-employee  member of the Board of  Directors  of the Company on June 1,
1996 was granted an option to purchase  8,000  shares of Common Stock at a price
of $6.75 per share. Each person who becomes a director after that date will also
be  granted  an  option to  purchase  8,000  shares of Common  Stock at the then
prevailing price of the Common Stock as quoted on the Nasdaq National Market.

Other Compensation

      The directors of the Company  received no other  compensation for services
as  directors,  except for  reimbursement  of travel  expenses  to attend  Board
meetings.



<PAGE>


                 SECURITIES HOLDINGS OF PRINCIPAL STOCKHOLDERS,
                             DIRECTORS AND OFFICERS

   
      Based upon information  received from the persons  concerned,  each person
known to the Company to be the beneficial owner of more than five percent of the
outstanding shares of Common Stock and Preferred Stock of Abraxas, each director
and  officer  and all  directors  and  officers  of  Abraxas  as a group,  owned
beneficially  as of January 20, 1997 the number and  percentage  of  outstanding
shares of Common Stock and Preferred Stock of Abraxas indicated in the following
table:
    

                                      Beneficial Ownership
                   ------------------------------------------------------------
                    Number of Shares (1)                Percentage
                   -----------------------   ----------------------------------
Name and Address of
Beneficial Owner       Common    Preferred     Common    Preferred    Voting
                      Stock (2)    Stock      Stock (2)    Stock    Stock (2)(3)

Robert L. G. Watson    262,564 (4)               4.51                    4.15
Endowment        
 Advisors, Inc.        864,790 (5)  45,741(5)    6.14        100        13.70
 450 Post Road E.
 Westport, CT 06881
Wellington Management
  Company              572,300 (6)               9.86                    9.07
  75 State Street
  19th Floor
  Boston, MA 02109
Ralph Wanger           516,000 (7)               8.89                    8.17
  227 West
  Monroe Street
  Suite 3000
  Chicago, IL 60606
First Union            424,000 (8)               6.81                    6.29
National Bank of 
  North Carolina
  230 South Tryon
  Charlotte, NC 28202
Kayne, Anderson
  Management, Inc.     375,000 (9)               6.46                    5.94
  1800 Avenue of
   the Stars
  Suite 1425
  Los Angeles,CA 90067
Metropolitan Life
  Insurance Company    375,000 (10)              6.46                    5.94
  One Madison Avenue
  New York, NY 10010
Franklin A. Burke       90,362 (11)              1.1                     *
Paul A. Powell, Jr.     36,484 (12)               *                      *
James C. Phelps         32,109 (13)               *                      *
Richard M. 
 Kleberg, III           30,756 (14)               *                      *
Robert D. Gershen       22,994 (15)               *                      *
Chris E. Williford      15,997 (16)               *                      *
Richard M. Riggs        12,315 (17)               *                      *
Harold D. Carter         5,000                    *                      *
All   Officers and      507,611(4)(11)           8.75                    8.04
Directors as a                 (12)(13)
 Group(9 persons)              (14)(15)
                               (16)(17)


<PAGE>


- ---------
   *  Less than 1%

(1) Unless  otherwise  indicated,  all shares are held directly with sole voting
and investment power.

(2) Does not include an aggregate of 1,995,000  shares of Common Stock which may
be issued in exchange for the Company's  Contingent  Value Rights.  (3) Includes
Common Stock and Preferred  Stock.  The holder of each share of Preferred  Stock
has 11.11 votes on all matters voted on by the holders of Common Stock.

(4)  Includes  20,316  shares  owned  by Wind  River  Resources  Corporation,  a
corporation  owned by Mr.  Watson,  as to which Mr.  Watson has sole  voting and
investment  power and 15,000 shares  issuable  upon exercise of options  granted
pursuant to the Abraxas  Petroleum  Corporation  1994 Long Term Incentive  Plan.
Does not include a total of 75,880 shares owned by the Robert L. G. Watson,  Jr.
Trust and the Carey B. Watson  Trust,  the  trustees  of which are Mr.  Watson's
brothers and the  beneficiaries of which are Mr. Watson's  children.  Mr. Watson
disclaims beneficial ownership of the shares owned by these trusts.

(5) Includes  34,288 shares of Series 1995-B  Preferred Stock  convertible  into
380,940  shares of Common  Stock and  262,645  shares of Common  Stock  owned by
Endowment  Energy  Partners,  L.P.  ("EEP") and 11,453  shares of Series  1995-B
Preferred  Stock  convertible  into  127,243  shares of Common  Stock and 93,962
shares  of  Common  Stock  owned  by  Endowment   Energy  Partners  II,  Limited
Partnership ("EEP II"). EEP and EEP II are limited  partnerships whose investors
are educational institutions and which were formed to make loans to companies in
the crude oil and natural gas business.  The general partner of both EEP and EEP
II is Fairfield  Partners,  Inc.  (Del.)  ("Fairfield")  which is a wholly-owned
subsidiary of Endowment Advisers,  Inc. ("EAI"), a Delaware nonstock corporation
controlled by its trustees and management.  Voting and investment power over the
shares held by EEP and EEP II is  exercised by the Board of Trustees of EAI, and
by Susan J. Carter,  the Senior Vice  President and Chief  Operating  Officer of
both EAI and Fairfield.  The trustees of EAI are principally individuals who are
financial officers of educational  institutions that have invested in investment
partnerships sponsored by EAI, including EEP and EEP II.

(6) Wellington  Management  Company is an investment manager which has the power
to make investment decisions for unrelated clients.

(7) Includes 156,000 shares owned by Wanger Asset  Management,  L.P. ("WAM") and
360,000 shares owned by the Acorn Investment Trust, Series Designated Acorn Fund
(the "Trust"). Wanger Asset Management, Ltd. ("WAM Ltd.") is the general partner
of WAM and  Ralph  Wanger  is the  general  partner  of WAM Ltd.  WAM  serves as
investment  advisor to the Trust.  Certain limited partners and employees of WAM
are officers and  trustees of the Trust.  The Trust has  delegated to WAM shared
voting and investment power over the shares owned by the Trust. Does not include
shares  owned by clients of WAM over which WAM does not have or share  voting or
investment power.

(8) Includes  warrants to purchase 424,000 shares of Common Stock at an exercise
price of $9.79 per share.

(9) Kayne,  Anderson  Management,  Inc. is an  investment  manager which has the
power to make investment decisions for unrelated clients.

(10) State Street Research & Management,  Inc. ("State Street") is an investment
manager  which  has the  power  to make  investment  decisions  for the  account
specified  above.  State  Street  disclaims  beneficial  ownership of all of the
shares of Common Stock listed above.

(11) Includes 8,900 shares issuable upon exercise of options granted pursuant to
the Abraxas Petroleum Corporation 1984 Non-Qualified Stock Option Plan.

(12) Includes 4,228 shares owned by Mechanical Development Co., Inc., all of the
outstanding  capital stock of which is owned by members of Mr. Powell's  family,
13,998 shares owned by the Paul A. Powell Trust of which Mr. Powell is a trustee
and his family  members are the primary  beneficiaries,  51 shares  owned by the
Paul A. Powell  Individual Trust of which Mr. Powell is a trustee,  4,989 shares
owned by West Point  Associates of which Mr. Powell is a general  partner and 63
shares owned by NAD  Properties  of which Mr. Powell is a general  partner.  Mr.
Powell shares voting and investment power as to all of such shares.

(13) Includes 8,000 shares owned by Marie Phelps, Mr. Phelps' wife.

(14) Includes 16,688 shares owned by SFD Enterprises, Ltd., a private investment
partnership.  Mr. Kleberg  shares voting and  investment  power as to the shares
owned by SFD Enterprises.

(15) Includes  warrants to purchase  13,500 shares of Common Stock at a price of
$7.00 per  share  owned by  Associated  Energy  Managers,  Inc.,  the  principal
shareholder and Chief Executive Officer of which is Mr.
Gershen.

(16) Includes 3,126 shares issuable upon exercise of options granted pursuant to
the Abraxas Petroleum Corporation 1984 Incentive Stock Option Plan, 6,874 shares
issuable  upon  exercise of options  granted  pursuant to the Abraxas  Petroleum
Corporation  1993 Key  Contributor  Stock Option Plan and 5,000 shares  issuable
upon exercise of options granted pursuant to the Abraxas  Petroleum  Corporation
1994 Long Term Incentive Plan.

(17)  Includes  700 shares owned by the Riggs Family Trust of which Mr. Riggs is
one of the trustees and 1,000 shares owned jointly by Mr. Riggs and his wife.


<PAGE>


                            DESCRIPTION OF THE NOTES

      The Series A Notes  were and the  Exchange  Notes will be issued  under an
indenture  (the  "Indenture")  dated as of  November  14,  1996 by and among the
Issuers,  the Subsidiary  Guarantors  and IBJ Schroder Bank & Trust Company,  as
Trustee (the  "Trustee").  The  following  summary of certain  provisions of the
Indenture does not purport to be complete and is subject to, and is qualified in
its entirety by reference  to, the Trust  Indenture Act of 1939, as amended (the
"TIA"), and to all of the provisions of the Indenture, including the definitions
of  certain  terms  therein  and those  terms  made a part of the  Indenture  by
reference  to the TIA as in effect on the date of the  Indenture.  A copy of the
form of Indenture  may be obtained  from the Issuers or the Initial  Purchasers.
The definitions of certain  capitalized  terms used in the following summary are
set forth below under "-- Certain Definitions."

      The Series A Notes were and the Exchange  Notes will be general  unsecured
obligations  of the  Issuers and will rank pari passu in right of payment to all
existing and future  unsubordinated  obligations  of the  Issuers.  The Series A
Notes rank and the  Exchange  Notes will rank  senior in right of payment to all
future subordinated indebtedness of the Issuers. The Series A Notes are, and the
Exchange Notes will be, however, effectively subordinated in right of payment to
all existing and future secured indebtedness of the Issuers to the extent of the
value of the assets securing such  indebtedness.  The Guarantees will be general
unsecured  obligations of the Subsidiary Guarantors and rank pari passu in right
of  payment  to all  existing  and  future  unsubordinated  indebtedness  of the
Subsidiary  Guarantors and senior in right of payment to all existing and future
subordinated  indebtedness of the Subsidiary Guarantors.  The Guarantees will be
effectively subordinated to secured indebtedness of the Subsidiary Guarantors to
the extent of the value of the assets securing such indebtedness.

      The  Series A Notes  were and the  Exchange  Notes will be issued in fully
registered form only,  without coupons,  in denominations of $1,000 and integral
multiples thereof.  The Trustee currently acts as paying agent and registrar for
the Notes.  The Notes may be presented for registration of transfer and exchange
at the offices of the registrar, which initially will be the Trustee's corporate
trust  office.  The Issuers may change any paying  agent and  registrar  without
notice to holders of the Notes (the  "Holders").  The Issuers will pay principal
(and  premium,  if any) on the Notes at the  Trustee's  corporate  office in New
York,  New York. At the Issuers'  option,  interest may be paid at the Trustee's
corporate  trust  office or by check mailed to the  registered  addresses of the
Holders.  Any Series A Notes that remain outstanding after the completion of the
Exchange  Offer,  together with the Exchange Notes issued in connection with the
Exchange  Offer,  will be  treated  as a single  class of  securities  under the
Indenture. See "Exchange Offer and Registration Rights."

Principal, Maturity and Interest

      The Notes are limited in aggregate  principal  amount to $215,000,000  and
will mature on  November 1, 2004.  Interest on the Notes will accrue at the rate
of 11.5% per annum and will be payable  semi-annually  in cash on each May 1 and
November 1, commencing on May 1, 1997, to the Persons who are registered Holders
at  the  close  of  business  on the  April  15 and  October  15,  respectively,
immediately  preceding the  applicable  interest  payment date.  Interest on the
Notes will accrue from and including the most recent date to which  interest has
been paid or, if no  interest  has been  paid,  from and  including  the date of
issuance.

      The Notes will not be  entitled to the  benefit of any  mandatory  sinking
fund.

Redemption

Optional Redemption

      The Notes will be redeemable, at the Issuers' option, in whole at any time
or in part from time to time, on and after November 1, 2000,  upon not less than
30 nor more than 60 days' notice, at the following  redemption prices (expressed
as  percentages  of  the  principal  amount  thereof)  if  redeemed  during  the
twelve-month period commencing on November 1 of the years set forth below, plus,
in each  case,  accrued  and  unpaid  interest,  if any,  thereon to the date of
redemption:

Year                                             Percentage
2000                                             105.750%
2001                                             102.875%
2002 and thereafter                              100.000%

Optional Redemption upon Equity Offerings

      At any time,  or from time to time,  on or prior to November 1, 1999,  the
Issuers may, at their  option,  use all or a portion of the net cash proceeds of
one or more  Equity  Offerings  (as  defined  below)  to redeem up to 35% of the
aggregate  principal amount of the Notes originally issued at a redemption price
equal to 111.5% of the aggregate  principal  amount of the Notes to be redeemed,
plus accrued and unpaid  interest,  if any,  thereon to the date of  redemption;
provided,  however,  that at least $139.75 million aggregate principal amount of
Notes remains outstanding immediately after giving effect to any such redemption
(it being  expressly  agreed  that for  purposes  of  determining  whether  this
condition is satisfied,  Notes owned by either Issuer or any of their Affiliates
shall  be  deemed  not to be  outstanding).  In order to  effect  the  foregoing
redemption with the proceeds of any Equity Offering, the Issuers shall make such
redemption  not more than 60 days  after  the  consummation  of any such  Equity
Offering.

Selection and Notice of Redemption

      In the event  that less  than all of the Notes are to be  redeemed  at any
time,  selection of such Notes, or portions thereof, for redemption will be made
by the Trustee in compliance  with the  requirements  of the principal  national
securities exchange,  if any, on which the Notes are listed or, if the Notes are
not then listed on a national securities  exchange,  on a pro rata basis, by lot
or by such  other  method  as the  Trustee  shall  deem  fair  and  appropriate;
provided,  however,  that no Notes of a principal amount of $1,000 or less shall
be redeemed in part; and provided, further, that if a partial redemption is made
with the  proceeds  of an Equity  Offering,  selection  of the Notes or portions
thereof for redemption  shall be made by the Trustee only on a pro rata basis or
on as nearly a pro rata basis as is  practicable  (subject to the  procedures of
DTC), unless such method is otherwise prohibited.  Notice of redemption shall be
mailed  by  first-class  mail at least 30 but not more than 60 days  before  the
redemption  date to each  Holder  of  Notes  to be  redeemed  at its  registered
address.  If any Note is to be redeemed in part only,  the notice of  redemption
that  relates  to such Note shall  state the  portion  of the  principal  amount
thereof to be redeemed. A new Note in a principal amount equal to the unredeemed
portion  thereof  will  be  issued  in the  name  of  the  Holder  thereof  upon
cancellation of the original Note. On and after the applicable  redemption date,
interest will cease to accrue on Notes or portions thereof called for redemption
as long as the Issuers have  deposited with the paying agent for the Notes funds
in satisfaction of the applicable redemption price pursuant to the Indenture.

Guarantees

      Each  Subsidiary  Guarantor will  unconditionally  guarantee,  on a senior
basis,  jointly  and  severally,  to each Holder and the  Trustee,  the full and
prompt  performance  of the Issuers'  obligations  under the  Indenture  and the
Notes,  including  the payment of principal  of and  interest on the Notes.  The
obligations of each  Subsidiary  Guarantor will be limited to the maximum amount
which, after giving effect to all other contingent and fixed liabilities of such
Subsidiary Guarantor and after giving effect to any collections from or payments
made by or on  behalf  of any  other  Subsidiary  Guarantor  in  respect  of the
obligations of such other  Subsidiary  Guarantor under its Guarantee or pursuant
to  its  contribution  obligations  under  the  Indenture,  will  result  in the
obligations of such Subsidiary  Guarantor under its Guarantee not constituting a
fraudulent  conveyance or fraudulent  transfer  under Federal or state law. Each
Subsidiary  Guarantor that makes a payment or  distribution  under its Guarantee
shall be entitled to a contribution  from each other Subsidiary  Guarantor in an
amount  pro  rata,  based  on the  net  assets  of  each  Subsidiary  Guarantor,
determined in accordance with GAAP.

      Each Subsidiary  Guarantor may consolidate  with or merge into or sell its
assets to the Company or another  Subsidiary  Guarantor  that is a Wholly  Owned
Restricted  Subsidiary without limitation,  or with or to other Persons upon the
terms and conditions set forth in the  Indenture.  See "-- Certain  Covenants --
Merger, Consolidation and Sale of Assets." In the event all of the Capital Stock
of a  Subsidiary  Guarantor  is sold by the  Company  and/or  one or more of its
Restricted  Subsidiaries  and the sale complies with the provisions set forth in
"-- Certain Covenants -- Limitation on Asset Sales," such Subsidiary Guarantor's
Guarantee will be released.

Change of Control

      The Indenture  provides  that upon the  occurrence of a Change of Control,
each Holder will have the right to require  that the Issuers  purchase  all or a
portion  of such  Holder's  Notes  pursuant  to the offer  described  below (the
"Change of Control  Offer"),  at a purchase price equal to 101% of the principal
amount thereof, plus accrued and unpaid interest, if any, thereon to the date of
purchase.

      Within 30 days  following  the date  upon  which  the  Change  of  Control
occurred,  the Issuers must send,  by first class mail, a notice to each Holder,
with a copy to the Trustee, which notice shall govern the terms of the Change of
Control Offer. Such notice shall state,  among other things,  the purchase date,
which must be no earlier  than 30 days nor later than 45 days from the date such
notice is mailed,  other than as may be required by law (the  "Change of Control
Payment  Date").  A Change of Control Offer shall remain open for a period of 20
Business Days or such longer period as may be required by law.  Holders electing
to have a Note purchased  pursuant to a Change of Control Offer will be required
to  surrender  the  Note,  with the form  entitled  "Option  of  Holder to Elect
Purchase"  on the  reverse of the Note  completed,  to the paying  agent for the
Notes at the address  specified  in the notice prior to the close of business on
the third Business Day prior to the Change of Control Payment Date.

      The Issuers shall not be required to make a Change of Control Offer upon a
Change of Control  if a third  party  makes the  Change of Control  Offer at the
Change of Control  Purchase Price, at the same times and otherwise in compliance
with the  requirements  applicable  to a Change  of  Control  Offer  made by the
Issuers and purchases all Notes  validly  tendered and not withdrawn  under such
Change of Control Offer.

      If a Change of Control Offer is made,  there can be no assurance  that the
Issuers  will have  available  funds  sufficient  to pay the  Change of  Control
purchase  price for all the Notes that might be delivered by Holders  seeking to
accept the Change of Control  Offer.  In the event the Issuers  are  required to
purchase  outstanding  Notes pursuant to a Change of Control Offer,  the Issuers
expect that they would seek third party financing to the extent they do not have
available  funds to meet their purchase  obligations.  However,  there can be no
assurance that the Issuers would be able to obtain such financing.

   
      Neither  the Board of  Directors  of either of the Issuers nor the Trustee
may waive the covenant  relating to the Issuers'  obligation to make a Change of
Control Offer.  Restrictions in the Indenture described herein on the ability of
the Company and its Restricted Subsidiaries to incur additional Indebtedness, to
grant liens on their  property,  to make  Restricted  Payments and to make Asset
Sales may also make more  difficult  or  discourage  a takeover of the  Company,
whether  favored or opposed  by the  management  of the  Company.  See  "Certain
Antitakeover  Provisions."  Consummation  of any  such  transaction  in  certain
circumstances may require repurchase of the Notes, and there can be no assurance
that the Company or the acquiring party will have sufficient financial resources
to  effect  such   repurchase.   Such   restrictions  and  the  restrictions  on
transactions with Affiliates may, in certain circumstances,  make more difficult
or  discourage  any  leveraged  buyout of the Company by the  management  of the
Company. While such restrictions cover a wide variety of arrangements which have
traditionally been used to effect highly leveraged  transactions,  the Indenture
may not afford the Holders of Notes  protection  in all  circumstances  from the
adverse   aspects   of   a   highly   leveraged   transaction,   reorganization,
restructuring, merger or similar transaction.

      The  Issuers  will comply  with the  requirements  of Rule 14e-1 under the
Exchange Act and any other  securities  laws and  regulations  thereunder to the
extent  such  laws  and  regulations  are  applicable  in  connection  with  the
repurchase of Notes  pursuant to a Change of Control  Offer.  To the extent that
the provisions of any securities  laws or regulations  conflict with the "Change
of Control"  provisions  of the  Indenture,  the Issuers  shall  comply with the
applicable  securities  laws and  regulations  and  shall  not be deemed to have
breached  their  obligations  under the  "Change of Control"  provisions  of the
Indenture by virtue thereof.
    



<PAGE>


Certain Covenants

      The Indenture contains, among others, the following covenants:

      Limitation on Incurrence of Additional Indebtedness.  Other than Permitted
Indebtedness,  the  Company  will not,  and will not cause or permit  any of its
Restricted  Subsidiaries  to,  directly or indirectly,  create,  incur,  assume,
guarantee,  acquire, become liable,  contingently or otherwise, with respect to,
or  otherwise  become  responsible  for payment of  (collectively,  "incur") any
Indebtedness;  provided,  however,  that if no Default or Event of Default shall
have  occurred  and be  continuing  at the  time of or as a  consequence  of the
incurrence of any such Indebtedness, the Company and the Restricted Subsidiaries
or any of them may incur Indebtedness (including,  without limitation,  Acquired
Indebtedness),  in  each  case,  if on  the  date  of  the  incurrence  of  such
Indebtedness,  after giving pro forma effect to the  incurrence  thereof and the
receipt and  application of the proceeds  therefrom,  (i) both (a) the Company's
Consolidated  EBITDA  Coverage Ratio would have been greater than 2.25 to 1.0 if
such  proposed  incurrence is on or prior to November 1, 1997 and at least equal
to 2.5 to 1.0 if such proposed  incurrence  is thereafter  and (b) the Company's
Adjusted  Consolidated  Net Tangible Assets are equal to or greater than 150% of
the  aggregate  consolidated  Indebtedness  of the  Company  and its  Restricted
Subsidiaries or (ii) the Company's Adjusted Consolidated Net Tangible Assets are
equal to or greater than 200% of the aggregate consolidated  Indebtedness of the
Company and its Restricted Subsidiaries.

      For purposes of determining any particular  amount of  Indebtedness  under
this   covenant,   guarantees  of   Indebtedness   otherwise   included  in  the
determination of such amount shall not also be included.

      Indebtedness  of a Person  existing  at the time  such  Person  becomes  a
Restricted Subsidiary (whether by merger, consolidation,  acquisition of Capital
Stock or  otherwise)  or is merged  with or into the  Company or any  Restricted
Subsidiary or which is secured by a Lien on an asset  acquired by the Company or
a  Restricted  Subsidiary  (whether or not such  Indebtedness  is assumed by the
acquiring  Person)  shall be deemed  incurred  at the time the Person  becomes a
Restricted  Subsidiary or at the time of the asset acquisition,  as the case may
be.

      The Company  will not,  and will not permit any  Subsidiary  Guarantor  to
incur any  Indebtedness  which by its  terms  (or by the terms of any  agreement
governing such  Indebtedness)  is  subordinated in right of payment to any other
Indebtedness   of  the  Company  or  such  Subsidiary   Guarantor   unless  such
Indebtedness  is also by its terms (or by the terms of any  agreement  governing
such Indebtedness)  made expressly  subordinate in right of payment to the Notes
or the Guarantee of such Subsidiary  Guarantor,  as the case may be, pursuant to
subordination  provisions that are substantively  identical to the subordination
provisions of such  Indebtedness  (or such agreement) that are most favorable to
the  holders  of any  other  Indebtedness  of the  Company  or  such  Subsidiary
Guarantor, as the case may be.

      Limitation  on  Restricted  Payments.  The Company  will not, and will not
cause or permit any of its Restricted  Subsidiaries  to, directly or indirectly,
(a) declare or pay any dividend or make any  distribution  (other than dividends
or distributions payable solely in Qualified Capital Stock of the Company) on or
in respect of shares of the  Company's  Capital Stock to holders of such Capital
Stock, (b) purchase, redeem or otherwise acquire or retire for value any Capital
Stock of the Company or any  warrants,  rights or options to purchase or acquire
shares of any class of such  Capital  Stock  other  than  through  the  exchange
therefor solely of Qualified Capital Stock of the Company or warrants, rights or
options to purchase or acquire shares of Qualified Capital Stock of the Company,
(c) make any principal payment on, purchase,  defease,  redeem, prepay, decrease
or otherwise acquire or retire for value, prior to any scheduled final maturity,
scheduled  repayment or scheduled sinking fund payment,  any Indebtedness of the
Company or a  Subsidiary  Guarantor  that is  subordinate  or junior in right of
payment to the Notes or such Subsidiary Guarantor's  Guarantee,  as the case may
be, or (d) make any Investment (other than a Permitted  Investment) (each of the
foregoing  actions set forth in clauses (a), (b), (c) and (d) being  referred to
as a  "Restricted  Payment"),  if at the  time of  such  Restricted  Payment  or
immediately  after giving effect  thereto,  (i) a Default or an Event of Default
shall have  occurred and be  continuing or (ii) the Company is not able to incur
at least $1.00 of additional Indebtedness (other than Permitted Indebtedness) in
compliance with "-- Limitation on Incurrence of Additional  Indebtedness" above;
provided,  however,  that notwithstanding the provisions of clause (i)(a) of "--
Limitation  on Incurrence of  Additional  Indebtedness"  above,  for purposes of
determining  whether  the  Company  could  incur  such  additional  Indebtedness
pursuant to this clause (ii), the Consolidated EBITDA Coverage Ratio which shall
be  required  shall be at least  2.5 to 1.0,  or (iii) the  aggregate  amount of
Restricted Payments (including such proposed Restricted Payment) made subsequent
to the Issue Date (the amount expended for such purposes, if other than in cash,
being the fair market value of such  property as  determined  reasonably  and in
good faith by the Board of Directors  of the  Company)  shall exceed the sum of:
(A) 50% of the cumulative Consolidated Net Income (or if cumulative Consolidated
Net  Income  shall be a loss,  minus 100% of such  loss) of the  Company  earned
subsequent  to the Issue Date and on or prior to the last date of the  Company's
fiscal quarter  immediately  preceding such  Restricted  Payment (the "Reference
Date") (treating such period as a single  accounting  period);  plus (B) 100% of
the aggregate  net cash proceeds  received by the Company from any Person (other
than a  Restricted  Subsidiary  of the  Company)  from  the  issuance  and  sale
subsequent to the Issue Date and on or prior to the Reference  Date of Qualified
Capital  Stock of the  Company;  plus (C)  without  duplication  of any  amounts
included in clause  (iii)(B)  above,  100% of the aggregate net cash proceeds of
any equity  contribution  received by the Company from a holder of the Company's
Capital Stock (excluding,  in the case of clauses (iii)(B) and (C), any net cash
proceeds from an Equity  Offering to the extent used to redeem the Notes);  plus
(D) an  amount  equal  to the  net  reduction  in  Investments  in  Unrestricted
Subsidiaries resulting from dividends, interest payments, repayments of loans or
advances,  or other  transfers  of cash,  in each case to the  Company or to any
Restricted Subsidiary of the Company from Unrestricted Subsidiaries (but without
duplication of any such amount included in calculating  cumulative  Consolidated
Net Income of the Company), or from redesignations of Unrestricted  Subsidiaries
as Restricted Subsidiaries (in each case valued as provided in "-- Limitation on
Designation of Unrestricted  Subsidiaries" below), not to exceed, in the case of
any Unrestricted  Subsidiary,  the amount of Investments  previously made by the
Company or any Restricted  Subsidiary in such Unrestricted  Subsidiary and which
was  treated as a  Restricted  Payment  under the  Indenture;  plus (E)  without
duplication of the immediately  preceding  subclause (D), an amount equal to the
lesser  of the  cost or net  cash  proceeds  received  upon  the  sale or  other
disposition of any  Investment  made after the Issue Date which had been treated
as a Restricted Payment (but without  duplication of any such amount included in
calculating  cumulative  Consolidated  Net  Income  of the  Company);  plus  (F)
$5,000,000.

      Notwithstanding the foregoing, the provisions set forth in the immediately
preceding  paragraph  shall not  prohibit:  (1) the  payment of any  dividend or
redemption payment within 60 days after the date of declaration of such dividend
or the applicable  redemption if the dividend or redemption payment, as the case
may be, would have been permitted on the date of declaration;  (2) if no Default
or Event of Default shall have occurred and be  continuing,  the  acquisition of
any shares of Capital  Stock of the  Company,  either (A) solely in exchange for
shares of Qualified  Capital Stock of the Company or (B) through the application
of net  proceeds of a  substantially  concurrent  sale for cash (other than to a
Restricted  Subsidiary  of the Company) of shares of Qualified  Capital Stock of
the Company;  (3) if no Default or Event of Default  shall have  occurred and be
continuing,  the  acquisition of any  Indebtedness  of the Company or Subsidiary
Guarantor that is subordinate or junior in right of payment to the Notes or such
Subsidiary  Guarantor's  Guarantee,  as the case may be,  either  (A)  solely in
exchange for shares of Qualified  Capital  Stock of the Company,  or (B) through
the  application  of net proceeds of a  substantially  concurrent  sale for cash
(other  than  to a  Restricted  Subsidiary  of the  Company)  of (I)  shares  of
Qualified Capital Stock of the Company or (II) Refinancing Indebtedness;  (4) if
no Default  or Event of  Default  shall have  occurred  and be  continuing,  the
payment of dividends in respect of the Company's  Series 1995-B  Preferred Stock
in an amount not to exceed $400,000 in any one year, (5) the initial designation
of Grey Wolf,  Cascade and Western Associated Energy Corporation as Unrestricted
Subsidiaries under the Indenture and (6) the payment of such portion of the CGGS
purchase  price,  if any, as shall have been placed in an escrow  account to the
former  shareholders of CGGS. In determining the aggregate  amount of Restricted
Payments made  subsequent  to the Issue Date in accordance  with clause (iii) of
the immediately  preceding paragraph,  amounts expended pursuant to clauses (1),
(2)(B) and (5) shall be included in such calculation.

      Limitation  on Asset  Sales.  The Company  will not, and will not cause or
permit any of its Restricted  Subsidiaries  to,  consummate an Asset Sale unless
(a) the Company or the  applicable  Restricted  Subsidiary,  as the case may be,
receives consideration at the time of such Asset Sale at least equal to the fair
market value of the assets sold or otherwise  disposed of (as determined in good
faith by the Company's Board of Directors or senior  management of the Company);
(b) (i) at  least  70% of the  consideration  received  by the  Company  or such
Restricted Subsidiary,  as the case may be, from such Asset Sale shall be in the
form of cash or Cash Equivalents and is received at the time of such disposition
and (ii) at least 15% of such  consideration  received  if in a form  other than
cash  or Cash  Equivalents  is  converted  into or  exchanged  for  cash or Cash
Equivalents  within 120 days of such disposition;  and (c) upon the consummation
of an Asset Sale, the Company shall apply, or cause such  Restricted  Subsidiary
to apply,  the Net Cash Proceeds  relating to such Asset Sale within 365 days of
receipt thereof either (i) to repay or prepay Indebtedness outstanding under the
New Credit Facility, including, without limitation, a permanent reduction in the
related commitment, (ii) to repay or prepay any Indebtedness of the Company that
is secured by a Lien  permitted  to be incurred  pursuant to "--  Limitation  on
Liens"  below,  (iii) to make an investment in properties or assets that replace
the  properties  or  assets  that  were the  subject  of such  Asset  Sale or in
properties  or assets  that will be used in the  business of the Company and its
Restricted  Subsidiaries  as  existing  on  the  Issue  Date  or  in  businesses
reasonably  related  thereto  ("Replacement  Assets"),  (iv) to an investment in
Crude Oil and Natural Gas Related  Assets or (v) a combination of prepayment and
investment  permitted by the foregoing  clauses (c)(i) through  (c)(iv).  On the
366th day after an Asset  Sale or such  earlier  date,  if any,  as the Board of
Directors of the Company  determines not to apply the Net Cash Proceeds relating
to such Asset Sale as set forth in clauses  (c)(i)  through  (c)(iv) of the next
preceding  sentence (each a "Net Proceeds Offer Trigger  Date"),  such aggregate
amount of Net Cash  Proceeds  which have been  received  by the  Company or such
Restricted  Subsidiary  but which have not been  applied  on or before  such Net
Proceeds Offer Trigger Date as permitted in clauses  (c)(i)  through  (c)(iv) of
the next  preceding  sentence  (each a "Net  Proceeds  Offer  Amount")  shall be
applied by the  Company or such  Restricted  Subsidiary,  as the case may be, to
make an offer to purchase (a "Net Proceeds  Offer") on a date (the "Net Proceeds
Offer  Payment  Date")  not less  than 30 nor more  than 45 days  following  the
applicable  Net  Proceeds  Offer  Trigger  Date,  from all Holders on a pro rata
basis,  that principal  amount of Notes  purchasable with the Net Proceeds Offer
Amount  at a price  equal to 100% of the  principal  amount  of the  Notes to be
purchased,  plus  accrued and unpaid  interest,  if any,  thereon to the date of
purchase;  provided,  however,  that if at any time any  non-cash  consideration
received by the  Company or any  Restricted  Subsidiary,  as the case may be, in
connection  with any Asset Sale is converted into or sold or otherwise  disposed
of for cash (other than  interest  received  with  respect to any such  non-cash
consideration),   then  such  conversion  or  disposition  shall  be  deemed  to
constitute an Asset Sale  hereunder  and the Net Cash Proceeds  thereof shall be
applied in accordance with this covenant. The Company may defer the Net Proceeds
Offer until there is an aggregate  unutilized Net Proceeds Offer Amount equal to
or in excess of  $5,000,000  resulting  from one or more  Asset  Sales (at which
time, the entire  unutilized Net Proceeds Offer Amount,  and not just the amount
in  excess  of  $5,000,000,  shall  be  applied  as  required  pursuant  to this
paragraph).

      In the event of the  transfer  of  substantially  all (but not all) of the
property  and  assets  of the  Company  and its  Restricted  Subsidiaries  as an
entirety to a Person in a transaction permitted under "-- Merger,  Consolidation
and Sale of Assets," the successor  corporation shall be deemed to have sold the
properties  and assets of the Company  and its  Restricted  Subsidiaries  not so
transferred for purposes of this covenant,  and shall comply with the provisions
of this  covenant  with respect to such deemed sale as if it were an Asset Sale.
In addition,  the fair market value of such properties and assets of the Company
or its Restricted  Subsidiaries deemed to be sold shall be deemed to be Net Cash
Proceeds for purposes of this covenant.

      Notwithstanding the two immediately preceding paragraphs,  the Company and
its  Restricted  Subsidiaries  will be  permitted  to  consummate  an Asset Sale
without  complying with such paragraphs to the extent (a) the  consideration for
such Asset Sale constitutes  Replacement Assets and/or Crude Oil and Natural Gas
Related  Assets  and (b) such  Asset Sale is for fair  market  value;  provided,
however,  that any consideration not constituting  Replacement  Assets and Crude
Oil and  Natural  Gas  Related  Assets  received  by the  Company  or any of its
Restricted  Subsidiaries  in  connection  with any Asset  Sale  permitted  to be
consummated  under this paragraph shall  constitute Net Cash Proceeds subject to
the provisions of the two immediately preceding paragraphs.

      Notice of each Net Proceeds  Offer will be mailed to the record Holders as
shown on the register of Holders within 30 days following the Net Proceeds Offer
Trigger Date,  with a copy to the Trustee,  and shall comply with the procedures
set forth in the  Indenture.  Upon receiving  notice of the Net Proceeds  Offer,
Holders  may  elect to  tender  their  Notes  in  whole  or in part in  integral
multiples of $1,000 in exchange for cash. To the extent Holders  properly tender
Notes with an  aggregate  principal  amount  exceeding  the Net  Proceeds  Offer
Amount,  Notes of tendering Holders will be purchased on a pro rata basis (based
on principal  amounts  tendered).  A Net Proceeds  Offer shall remain open for a
period of 20 Business Days or such longer period as may be required by law.

      The  Company's  ability to  repurchase  Notes in a Net  Proceeds  Offer is
restricted  by the terms of the New Credit  Facility  and may be  prohibited  or
otherwise limited by the terms of any then existing  borrowing  arrangements and
by the Company's financial resources.

      The  Company  will comply  with the  requirements  of Rule 14e-1 under the
Exchange Act and any other  securities  laws and  regulations  thereunder to the
extent  such  laws  and  regulations  are  applicable  in  connection  with  the
repurchase  of Notes  pursuant to a Net Proceeds  Offer.  To the extent that the
provisions of any securities laws or regulations  conflict with the "Asset Sale"
provisions  of the  Indenture,  the Company  shall  comply  with the  applicable
securities  laws and  regulations  and shall not be deemed to have  breached its
obligations  under  the  "Asset  Sale"  provisions  of the  Indenture  by virtue
thereof.

      Limitation on Dividend and Other Payment Restrictions Affecting Restricted
Subsidiaries.  The  Company  will not,  and will not cause or permit  any of its
Restricted Subsidiaries to, directly or indirectly, create or otherwise cause or
permit  to exist or become  effective  any  encumbrance  or  restriction  on the
ability of any  Restricted  Subsidiary  to (a) pay  dividends  or make any other
distributions on or in respect of its Capital Stock; (b) make loans or advances,
or to pay any Indebtedness or other obligation owed, to the Company or any other
Restricted Subsidiary; (c) guarantee any Indebtedness or any other obligation of
the Company or any Restricted Subsidiary; or (d) transfer any of its property or
assets to the Company or any other Restricted  Subsidiary (each such encumbrance
or  restriction,  a  "Payment  Restriction"),  except for such  encumbrances  or
restrictions  existing  under or by reason  of:  (i)  applicable  law;  (ii) the
Indenture;   (iii)  the  New  Credit  Facility;  (iv)  customary  non-assignment
provisions  of any contract or any lease  governing a leasehold  interest of any
Restricted Subsidiary; (v) any instrument governing Acquired Indebtedness, which
encumbrance or restriction is not applicable to such Restricted  Subsidiary,  or
the properties or assets of such Restricted Subsidiary, other than the Person or
the properties or assets of the Person so acquired;  (vi) agreements existing on
the Issue Date to the extent and in the manner such  agreements are in effect on
the Issue  Date;  (vii)  customary  restrictions  with  respect to a  Restricted
Subsidiary  of the Company  pursuant to an agreement  that has been entered into
for the sale or  disposition  of  Capital  Stock or  assets  of such  Restricted
Subsidiary  to be  consummated  in  accordance  with the terms of the  Indenture
solely in  respect of the assets or  Capital  Stock to be sold or  disposed  of;
(viii) any instrument  governing a Permitted Lien, to the extent and only to the
extent such  instrument  restricts the transfer or other  disposition  of assets
subject to such  Permitted  Lien;  or (ix) an  agreement  governing  Refinancing
Indebtedness incurred to Refinance the Indebtedness issued,  assumed or incurred
pursuant to an agreement  referred to in clause (ii),  (iii), (v) or (vi) above;
provided,   however,  that  the  provisions  relating  to  such  encumbrance  or
restriction contained in any such Refinancing Indebtedness are no less favorable
to the Holders in any material  respect as  determined by the Board of Directors
of the Company in their  reasonable  and good faith judgment than the provisions
relating  to  such  encumbrance  or  restriction  contained  in  the  applicable
agreement referred to in such clause (ii), (iii), (v) or (vi).

      Limitation on Preferred Stock of Restricted Subsidiaries. The Company will
not cause or permit any of its  Restricted  Subsidiaries  to issue any Preferred
Stock (other than to the Company or to a Wholly Owned Restricted  Subsidiary) or
permit  any  Person  (other  than  the  Company  or a  Wholly  Owned  Restricted
Subsidiary) to own any Preferred Stock of any Restricted Subsidiary.

      Limitation on Liens. Other than Permitted Liens, the Company will not, and
will not cause or permit any of its  Restricted  Subsidiaries  to,  directly  or
indirectly,  create, incur, assume or permit or suffer to exist any Liens of any
kind  against  or upon any  property  or  assets  of the  Company  or any of its
Restricted  Subsidiaries  (whether owned on the Issue Date or acquired after the
Issue Date) or any proceeds  therefrom,  or assign or otherwise convey any right
to receive income or profits  therefrom unless (a) in the case of Liens securing
Indebtedness that is expressly  subordinate or junior in right of payment to the
Notes or any  Guarantee,  the Notes or such  Guarantee,  as the case may be, are
secured  by a Lien on such  property,  assets  or  proceeds  that is  senior  in
priority  to such  Liens at least to the same  extent as the Notes are senior in
priority  to such  Indebtedness  and (b) in all other  cases,  the Notes and the
Guarantees are equally and ratably secured.

      Merger,  Consolidation  and Sale of Assets.  The  Company  will not,  in a
single transaction or series of related transactions,  consolidate or merge with
or into any  Person,  or sell,  assign,  transfer,  lease,  convey or  otherwise
dispose  of (or cause or  permit  any  Restricted  Subsidiary  to sell,  assign,
transfer, lease, convey or otherwise dispose of) all or substantially all of the
Company's  assets  (determined on a  consolidated  basis for the Company and its
Restricted Subsidiaries), whether as an entirety or substantially as an entirety
to any Person unless: (a) either (i) the Company or such Restricted  Subsidiary,
as the case may be, shall be the surviving or continuing corporation or (ii) the
Person (if other than the Company)  formed by such  consolidation  or into which
the  Company  is  merged  or the  Person  which  acquires  by sale,  assignment,
transfer,  lease,  conveyance or other  disposition the properties and assets of
the Company and its Restricted  Subsidiaries  substantially  as an entirety (the
"Surviving  Entity") (x) shall be a corporation  organized and validly  existing
under the laws of the  United  States or any state  thereof or the  District  of
Columbia and (y) shall expressly assume, by supplemental  indenture (in form and
substance  satisfactory to the Trustee),  executed and delivered to the Trustee,
the due and punctual payment of the principal of, premium,  if any, and interest
on all of the Notes and the  performance  of every  covenant  of the Notes,  the
Indenture and the Registration Rights Agreement on the part of the Company to be
performed or observed;  (b) immediately  after giving effect to such transaction
and the assumption  contemplated by clause  (a)(ii)(y) above  (including  giving
effect to any Indebtedness  incurred or anticipated to be incurred in connection
with or in respect of such  transaction),  the Company or such Surviving Entity,
as the case may be, (i) shall have a Consolidated  Net Worth equal to or greater
than  the  Consolidated  Net  Worth  of the  Company  immediately  prior to such
transaction  and  (ii)  shall be able to  incur  at  least  $1.00 of  additional
Indebtedness (other than Permitted  Indebtedness)  pursuant to "-- Limitation on
Incurrence  of  Additional  Indebtedness"  above;  (c)  immediately  before  and
immediately   after  giving  effect  to  such  transaction  and  the  assumption
contemplated by clause (a)(ii)(y) above (including,  without limitation,  giving
effect to any  Indebtedness  incurred or anticipated to be incurred and any Lien
granted in  connection  with or in respect  of the  transaction),  no Default or
Event of Default  shall have occurred or be  continuing;  and (d) the Company or
the Surviving Entity, as the case may be, shall have delivered to the Trustee an
officers'  certificate  and an  opinion  of  counsel,  each  stating  that  such
consolidation,  merger, sale, assignment,  transfer,  lease, conveyance or other
disposition and, if a supplemental indenture is required in connection with such
transaction,  such supplemental  indenture comply with the applicable provisions
of the Indenture and that all conditions  precedent in the Indenture relating to
such transaction have been satisfied;  provided,  however, that such counsel may
rely, as to matters of fact, on a certificate or certificates of officers of the
Company.

      For purposes of the foregoing, the transfer (by lease, assignment, sale or
otherwise,  in a  single  transaction  or  series  of  transactions)  of  all or
substantially  all of the  properties  or  assets  of  one  or  more  Restricted
Subsidiaries the Capital Stock of which  constitutes all or substantially all of
the properties and assets of the Company,  shall be deemed to be the transfer of
all or substantially all of the properties and assets of the Company.

      Upon any  consolidation,  combination  or merger or any transfer of all or
substantially all of the assets of the Company in accordance with the foregoing,
in which the Company is not the  continuing  corporation,  the successor  Person
formed by such  consolidation  or into  which the  Company is merged or to which
such conveyance,  lease or transfer is made shall succeed to, and be substituted
for, and may exercise  every right and power of, the Company under the Indenture
and the Notes with the same effect as if such surviving entity had been named as
such.

      Each  Subsidiary  Guarantor  (other than any  Subsidiary  Guarantor  whose
Guarantee is to be released in  accordance  with the terms of the  Guarantee and
the Indenture in connection with any  transaction  complying with the provisions
of the Indenture  described  under "Merger,  Consolidation  and Sale of Assets")
will not, and the Company will not cause or permit any Subsidiary  Guarantor to,
consolidate  with or merge  with or into any Person  other  than the  Company or
another  Subsidiary  Guarantor  that is a  Wholly  Owned  Restricted  Subsidiary
unless:  (a) the entity formed by or surviving any such  consolidation or merger
(if  other  than  the  Subsidiary  Guarantor)  or to  which  such  sale,  lease,
conveyance or other disposition shall have been made is a corporation  organized
and  existing  under the laws of the United  States or any state  thereof or the
District of Columbia;  (b) such entity  assumes by  execution of a  supplemental
indenture  all  of  the  obligations  of  the  Subsidiary  Guarantor  under  its
Guarantee;  (c) immediately after giving effect to such transaction,  no Default
or Event of Default shall have occurred and be continuing;  and (d)  immediately
after  giving  effect  to such  transaction  and  the  use of any  net  proceeds
therefrom on a pro forma basis,  the Company  could  satisfy the  provisions  of
clause (b) of the first paragraph of this covenant.  Any merger or consolidation
of a Subsidiary  Guarantor with and into the Company (with the Company being the
surviving  entity)  or  another  Subsidiary  Guarantor  that is a  Wholly  Owned
Restricted Subsidiary need only comply with clause (d) of the first paragraph of
this covenant.

      Limitations on Transactions with Affiliates. (a) The Company will not, and
will not cause or permit any of its  Restricted  Subsidiaries  to,  directly  or
indirectly,  enter into,  amend or permit or suffer to exist any  transaction or
series of related  transactions  (including,  without limitation,  the purchase,
sale, lease or exchange of any property, the guaranteeing of any Indebtedness or
the  rendering  of any  service)  with,  or for the  benefit  of,  any of  their
respective  Affiliates  (each  an  "Affiliate  Transaction"),   other  than  (i)
Affiliate  Transactions  permitted under paragraph (b) of this covenant and (ii)
Affiliate  Transactions  that are on terms that are fair and  reasonable  to the
Company or the applicable Restricted Subsidiary and are no less favorable to the
Company or the applicable Restricted Subsidiary than those that might reasonably
have been obtained in a comparable  transaction at such time on an  arm's-length
basis from a Person that is not an Affiliate  of the Company or such  Restricted
Subsidiary.  All Affiliate  Transactions  (and each series of related  Affiliate
Transactions  which are similar or part of a common  plan)  involving  aggregate
payments  or other  property  with a fair market  value in excess of  $1,000,000
shall be approved by the Board of Directors of the Company,  such approval to be
evidenced  by a Board  Resolution  stating  that  such  Board of  Directors  has
determined that such transaction complies with the foregoing provisions.  If the
Company or any Restricted  Subsidiary enters into an Affiliate Transaction (or a
series of related Affiliate Transactions related to a common plan) that involves
an aggregate  fair market  value of more than  $10,000,000,  the Company  shall,
prior to the consummation thereof, obtain a favorable opinion as to the fairness
of such  transaction  or series of related  transactions  to the  Company or the
relevant  Restricted  Subsidiary,  as the case may be, from a financial point of
view, from an Independent Advisor and file the same with the Trustee.

      (b) The  restrictions  set  forth in  clause  (a)  shall  not apply to (i)
reasonable fees and  compensation  paid to and indemnity  provided on behalf of,
officers,  directors,  employees or consultants of the Company or any Restricted
Subsidiary  as  determined  in good  faith by the Board of  Directors  or senior
management  of the Company or such  Restricted  Subsidiary,  as the case may be;
(ii)  transactions  exclusively  between  or among  the  Company  and any of its
Restricted   Subsidiaries  or  exclusively  between  or  among  such  Restricted
Subsidiaries;  provided,  however,  that  such  transactions  are not  otherwise
prohibited  by  the  Indenture;  (iii)  Restricted  Payments  permitted  by  the
Indenture;  and (iv) the payment of such portion of the CGGS purchase  price, if
any, as shall have been held in escrow to the former shareholders of CGGS.

      Limitation  on Restricted  and  Unrestricted  Subsidiaries.  The Indenture
provides  that the Board of  Directors  may,  if no  Default or Event of Default
shall have  occurred and be continuing  or would arise  therefrom,  designate an
Unrestricted Subsidiary to be a Restricted Subsidiary;  provided,  however, that
(i) any such redesignation shall be deemed to be an incurrence as of the date of
such  redesignation  by the  Company  and  its  Restricted  Subsidiaries  of the
Indebtedness  (if  any) of such  redesignated  Subsidiary  for  purposes  of "--
Limitation on Incurrence of  Additional  Indebtedness"  above,  (ii) unless such
redesignated Subsidiary shall not have any Indebtedness outstanding,  other than
Indebtedness which would be Permitted Indebtedness, no such designation shall be
permitted if  immediately  after  giving  effect to such  redesignation  and the
incurrence of any such additional Indebtedness the Company could not incur $1.00
of additional  Indebtedness (other than Permitted  Indebtedness) pursuant to "--
Limitation  on  Incurrence  of  Additional  Indebtedness"  above and (iii)  such
Subsidiary  assumes  by  execution  of  a  supplemental  indenture  all  of  the
obligations of a Subsidiary Guarantor under a Guarantee.

      The Board of  Directors of the Company also may, if no Default or Event of
Default  shall  have  occurred  and be  continuing  or  would  arise  therefrom,
designate any Restricted Subsidiary to be an Unrestricted Subsidiary if (i) such
designation  is at that  time  permitted  under  "--  Limitation  on  Restricted
Payments" above and (ii)  immediately  after giving effect to such  designation,
the Company could incur $1.00 of additional  Indebtedness  (other than Permitted
Indebtedness)   pursuant  to  "--   Limitation   on   Incurrence  of  Additional
Indebtedness"  above.  Any such  designation by the Board of Directors  shall be
evidenced  to the Trustee by the filing with the Trustee of a certified  copy of
the  resolution of the Board of Directors  giving effect to such  designation or
redesignation and an Officers'  Certificate  certifying that such designation or
redesignation  complied  with the  foregoing  conditions  and  setting  forth in
reasonable detail the underlying calculations.  In the event that any Restricted
Subsidiary  is  designated an  Unrestricted  Subsidiary in accordance  with this
covenant, such Restricted Subsidiary's Guarantee will be released.

      The Indenture  provides that for purposes of the covenant  described under
"--  Limitation on Restricted  Payments"  above,  (i) an  "Investment"  shall be
deemed to have been made at the time any Restricted  Subsidiary is designated as
an Unrestricted  Subsidiary in an amount  (proportionate to the Company's equity
interest  in  such  Subsidiary)  equal  to the  net  worth  of  such  Restricted
Subsidiary  at the time that such  Restricted  Subsidiary  is  designated  as an
Unrestricted Subsidiary; (ii) at any date the aggregate amount of all Restricted
Payments made as  Investments  since the Issue Date shall exclude and be reduced
by an amount (proportionate to the Company's equity interest in such Subsidiary)
equal to the net  worth of any  Unrestricted  Subsidiary  at the time  that such
Unrestricted Subsidiary is designated a Restricted Subsidiary, not to exceed, in
the case of any such redesignation of an Unrestricted Subsidiary as a Restricted
Subsidiary,  the amount of  Investments  previously  made by the Company and its
Restricted  Subsidiaries in such  Unrestricted  Subsidiary (in each case (i) and
(ii) "net worth" to be calculated based upon the fair market value of the assets
of such Subsidiary as of any such date of  designation);  and (iii) any property
transferred to or from an  Unrestricted  Subsidiary  shall be valued at its fair
market value at the time of such transfer.

      The Indenture provides that  notwithstanding  the foregoing,  the Board of
Directors may not designate any Subsidiary of the Company to be an  Unrestricted
Subsidiary  if,  after  such  designation,  (a) the  Company  or any  Restricted
Subsidiary (i) provides credit support for, or a guarantee of, any  Indebtedness
of  such  Subsidiary   (including  any  undertaking,   agreement  or  instrument
evidencing such  Indebtedness) or (ii) is directly or indirectly  liable for any
Indebtedness  of such  Subsidiary or (b) such  Subsidiary owns any Capital Stock
of, or owns or holds any Lien on any  property  of,  any  Restricted  Subsidiary
which is not a Subsidiary of the Subsidiary to be so designated.

      The  Indenture  provides  that  Subsidiaries  of the Company  that are not
designated by the Board of Directors as Restricted or Unrestricted  Subsidiaries
will be deemed to be Restricted Subsidiaries.  Notwithstanding any provisions of
this  covenant,   all  Subsidiaries  of  an  Unrestricted   Subsidiary  will  be
Unrestricted Subsidiaries.

      Additional Subsidiary Guarantees.  If the Company or any of its Restricted
Subsidiaries  transfers or causes to be  transferred,  in one  transaction  or a
series of related  transactions,  any property to any Restricted Subsidiary that
is not a  Subsidiary  Guarantor,  or if  the  Company  or any of its  Restricted
Subsidiaries  shall  organize,  acquire  or  otherwise  invest  in  or  hold  an
Investment in another  Restricted  Subsidiary having total  consolidated  assets
with a book value in excess of $500,000 that is not a Subsidiary Guarantor, then
such transferee or acquired or other Restricted Subsidiary shall (a) execute and
deliver to the Trustee a supplemental indenture in form reasonably  satisfactory
to  the   Trustee   pursuant   to  which  such   Restricted   Subsidiary   shall
unconditionally  guarantee all of the Company's  obligations under the Notes and
the  Indenture  on the terms set forth in the  Indenture  and (b) deliver to the
Trustee an opinion of counsel  that such  supplemental  indenture  has been duly
authorized, executed and delivered by such Restricted Subsidiary and constitutes
a  legal,  valid,   binding  and  enforceable   obligation  of  such  Restricted
Subsidiary.  Thereafter,  such  Restricted  Subsidiary  shall  be  a  Subsidiary
Guarantor for all purposes of the Indenture.

      Limitation  on Conduct of  Business.  The Company  will not,  and will not
permit  any of its  Restricted  Subsidiaries  to,  engage in the  conduct of any
business other than the Crude Oil and Natural Gas Business.

   
      Reports to Holders. The Company will deliver to the Trustee within 15 days
after the filing of the same with the  Commission,  copies of the  quarterly and
annual  reports and of the  information,  documents and other  reports,  if any,
which the Company is required to file with the Commission pursuant to Section 13
or 15(d) of the  Exchange  Act.  Notwithstanding  that  the  Company  may not be
subject to the  reporting  requirements  of Section 13 or 15(d) of the  Exchange
Act, the Company will file with the  Commission,  to the extent  permitted,  and
provide the Trustee and Holders with such annual  reports and such  information,
documents and other  reports  specified in Sections 13 and 15(d) of the Exchange
Act. The Company will also comply with the other provisions of Section 314(a) of
the TIA.
    



<PAGE>


Events of Default

      The following events are defined in the Indenture as "Events of Default":

      (a) the failure to pay interest (including any Additional Interest) on any
Notes when the same  becomes due and payable  and the  default  continues  for a
period of 30 days;

      (b) the failure to pay the  principal  on any Notes,  when such  principal
becomes due and payable,  at maturity,  upon redemption or otherwise  (including
the failure to make a payment to purchase Notes tendered pursuant to a Change of
Control Offer or a Net Proceeds Offer);

      (c) a default in the  observance or  performance  of any other covenant or
agreement  contained in the Indenture which default continues for a period of 30
days after either Issuer  receives  written  notice  specifying the default (and
demanding  that such default be remedied)  from the Trustee or the Holders of at
least 25% of the outstanding  principal  amount of the Notes (except in the case
of a default with respect to  observance or  performance  of any of the terms or
provisions  of  "--  Change  of  Control"  or  "Certain   Covenants  --  Merger,
Consolidation  and Sale of Assets" or "--  Limitation on Asset Sales" which will
constitute  an Event of Default  with such notice  requirement  but without such
passage of time requirement);

      (d) a default  under any  mortgage,  indenture or  instrument  under which
there  may  be  issued  or by  which  there  may be  secured  or  evidenced  any
Indebtedness  of the Company or of any Restricted  Subsidiary (or the payment of
which is guaranteed by the Issuers or any Restricted  Subsidiary),  whether such
Indebtedness now exists or is created after the Issue Date, which default (i) is
caused by a failure to pay principal of or premium,  if any, or interest on such
Indebtedness  after any applicable grace period provided in such Indebtedness (a
"payment  default") or (ii)  results in the  acceleration  of such  Indebtedness
prior to its express  maturity and, in each case,  the  principal  amount of any
such  Indebtedness,  together  with  the  principal  amount  of any  other  such
Indebtedness  under  which there has been a payment  default or the  maturity of
which has been so accelerated, aggregates at least $5,000,000;

      (e) one or more  judgments in an aggregate  amount in excess of $5,000,000
(unless covered by insurance by a reputable  insurer as to which the insurer has
acknowledged  coverage)  shall have been rendered  against the Company or any of
its Restricted  Subsidiaries and such judgments remain undischarged,  unvacated,
unpaid or  unstayed  for a period of 60 days after such  judgment  or  judgments
become final and non-appealable;

      (f)  certain  events of  bankruptcy  affecting  the  Company or any of its
Subsidiaries; or

      (g) any of the  Guarantees  cease to be in full force and effect or any of
the Guarantees are declared to be null and void or invalid and  unenforceable or
any of the Subsidiary  Guarantors  denies or disaffirms its liability  under its
Guarantees  (other  than by reason  of  release  of a  Subsidiary  Guarantor  in
accordance with the terms of the Indenture).

      The Indenture  provides  that, if an Event of Default (other than an Event
of Default  specified  in clause (f) above) shall occur and be  continuing,  the
Trustee or the Holders of at least 25% in principal amount of outstanding  Notes
may declare the principal of,  premium,  if any, and accrued and unpaid interest
on all the Notes to be due and  payable by notice in writing to the  Issuers and
the  Trustee  specifying  the  Event  of  Default  and that it is a  "notice  of
acceleration",  and the same shall become  immediately  due and  payable.  If an
Event of Default  specified in clause (f) above occurs and is  continuing,  then
all unpaid principal of, and premium, if any, and accrued and unpaid interest on
all of the outstanding  Notes shall ipso facto become and be immediately due and
payable  without any  declaration or other act on the part of the Trustee or any
Holder.

      The  Indenture   provides  that,  at  any  time  after  a  declaration  of
acceleration with respect to the Notes as described in the preceding  paragraph,
the  Holders of a majority  in  principal  amount of the Notes may  rescind  and
cancel such  declaration and its  consequences  (a) if the rescission  would not
conflict with any judgment or decree, (b) if all existing Events of Default have
been cured or waived except  nonpayment of principal or interest that has become
due solely because of such  acceleration,  (c) to the extent the payment of such
interest is lawful,  interest on overdue  installments  of interest  and overdue
principal,   which  has  become  due  otherwise  than  by  such  declaration  of
acceleration,  has been  paid,  (d) if the  Issuers  have paid the  Trustee  its
reasonable   compensation   and   reimbursed   the  Trustee  for  its  expenses,
disbursements  and  advances  and (e) in the  event of the cure or  waiver of an
Event of  Default of the type  described  in clause  (f) of the  description  of
Events  of  Default  above,   the  Trustee  shall  have  received  an  officers'
certificate  and an opinion of counsel that such Event of Default has been cured
or waived; provided, however, that such counsel may rely, as to matters of fact,
on a certificate or certificates of officers of the Company.  No such rescission
shall affect any subsequent Default or impair any right consequent thereto.

      The  Indenture  provides  that,  at any time prior to the  declaration  of
acceleration of the Notes,  the Holders of a majority in principal amount of the
Notes may waive any existing  Default or Event of Default  under the  Indenture,
and its  consequences,  except a default in the payment of the  principal  of or
interest on any Notes.

      The  Indenture  provides  that,  Holders of the Notes may not  enforce the
Indenture  or the Notes except as provided in the  Indenture  and under the TIA.
During the existence of an Event of Default, the Trustee is required to exercise
such rights and powers  vested in it under the Indenture and use the same degree
of care and skill in its exercise thereof as a prudent man would exercise or use
under the  circumstances  in the  conduct  of his own  affairs.  Subject  to the
provisions  of the Indenture  relating to the duties of the Trustee,  whether or
not an Event of Default shall occur and be  continuing,  the Trustee is under no
obligation  to exercise any of its rights or powers  under the  Indenture at the
request,  order or  direction  of any of the  Holders,  unless such Holders have
offered to the Trustee  reasonable  indemnity.  Subject to all provisions of the
Indenture and applicable  law, the Holders of a majority in aggregate  principal
amount of the then outstanding  Notes have the right to direct the time,  method
and place of conducting any  proceeding for any remedy  available to the Trustee
or exercising any trust or power conferred on the Trustee.

      Under the  Indenture,  the  Issuers are  required to provide an  officers'
certificate to the Trustee promptly upon any such officer obtaining knowledge of
any Default or Event of Default  (provided that such officers shall provide such
certification at least annually whether or not they know of any Default or Event
of Default) that has occurred and, if applicable, describe such Default or Event
of Default and the status thereof.

Legal Defeasance and Covenant Defeasance

      The  Issuers  may,  at their  option and at any time,  elect to have their
obligations  and the  corresponding  obligations  of the  Subsidiary  Guarantors
discharged  with respect to the  outstanding  Notes ("Legal  Defeasance").  Such
Legal  Defeasance  means  that the  Issuers  shall be  deemed  to have  paid and
discharged the entire  indebtedness  represented by the outstanding  Notes,  and
satisfied all of their obligations with respect to the Notes, except for (a) the
rights of Holders to receive  payments in respect of the principal of,  premium,
if any, and  interest on the Notes when such  payments are due, (b) the Issuers'
obligations  with  respect  to the Notes  concerning  issuing  temporary  Notes,
registration  of  Notes,  mutilated,  destroyed,  lost or  stolen  Notes and the
maintenance of an office or agency for payments,  (c) the rights, powers, trust,
duties and immunities of the Trustee and the Issuers'  obligations in connection
therewith and (d) the Legal Defeasance provisions of the Indenture. In addition,
the Issuers may, at their option and at any time,  elect to have the obligations
of the Issuers released with respect to certain  covenants that are described in
the Indenture ("Covenant Defeasance") and thereafter any omission to comply with
such obligations shall not constitute a Default or Event of Default with respect
to the Notes.  In the event Covenant  Defeasance  occurs,  certain events (other
than  non-payment,  bankruptcy,  receivership,   reorganization  and  insolvency
events)  described  under "-- Events of Default"  will no longer  constitute  an
Event of Default with respect to the Notes.

      In order to exercise either Legal Defeasance or Covenant  Defeasance,  (a)
the Issuers must irrevocably deposit with the Trustee, in trust, for the benefit
of the  Holders  cash in  United  States  dollars,  non-callable  United  States
government  obligations,  or a combination  thereof,  in such amounts as will be
sufficient, in the opinion of a nationally recognized firm of independent public
accountants, to pay the principal of, premium, if any, and interest on the Notes
on the stated date for payment thereof or on the applicable  redemption date, as
the case may be; (b) in the case of Legal  Defeasance,  the  Issuers  shall have
delivered to the Trustee an opinion of counsel in the United  States  reasonably
acceptable to the Trustee confirming that (i) the Issuers have received from, or
there has been published by, the Internal Revenue Service a ruling or (ii) since
the date of the  Indenture,  there has been a change in the  applicable  federal
income  tax law,  in either  case to the effect  that,  and based  thereon  such
opinion of counsel shall confirm  that,  the Holders will not recognize  income,
gain or  loss  for  federal  income  tax  purposes  as a  result  of such  Legal
Defeasance and will be subject to federal income tax on the same amounts, in the
same  manner  and at the same  times as would  have been the case if such  Legal
Defeasance had not occurred, (c) in the case of Covenant Defeasance, the Issuers
shall have  delivered to the Trustee an opinion of counsel in the United  States
reasonably  acceptable  to the  Trustee  confirming  that the  Holders  will not
recognize  income,  gain or loss for federal  income tax purposes as a result of
such Covenant  Defeasance  and will be subject to federal income tax on the same
amounts, in the same manner and at the same times as would have been the case if
such Covenant  Defeasance  had not occurred;  (d) no Default or Event of Default
shall have  occurred and be continuing on the date of such deposit or insofar as
Events of Default from  bankruptcy or insolvency  events are  concerned,  at any
time in the period  ending on the 91st day after the date of  deposit;  (e) such
Legal  Defeasance  or  Covenant  Defeasance  shall  not  result  in a breach  or
violation of, or constitute a default under the Indenture or any other agreement
or instrument to which the Company or any of its  Restricted  Subsidiaries  is a
party or by which the Company or any of its  Restricted  Subsidiaries  is bound;
(f) the Issuers  shall have  delivered to the Trustee an  officers'  certificate
stating  that  the  deposit  was not made by the  Issuers  with  the  intent  of
preferring  the Holders over any other  creditors  of either  Issuer or with the
intent of defeating,  hindering,  delaying or defrauding any other  creditors of
the Issuers or others;  (g) the Issuers  shall have  delivered to the Trustee an
officers'  certificate  and  an  opinion  of  counsel,  each  stating  that  all
conditions  precedent  provided for or relating to the Legal  Defeasance  or the
Covenant  Defeasance,  as the case may be, have been  complied  with;  provided,
however,  that such counsel may rely, as to matters of fact, on a certificate or
certificates of officers of the Company; (h) the Issuers shall have delivered to
the  Trustee  an  opinion  of  counsel  to the  effect  that  after the 91st day
following the deposit,  the trust funds will not be subject to the effect of any
applicable  bankruptcy,  insolvency,  reorganization  or similar laws  affecting
creditors' rights generally;  provided,  however, that such counsel may rely, as
to matters of fact, on a certificate or certificates of officers of the Issuers;
and (i) certain other customary conditions precedent are satisfied.

Satisfaction and Discharge

      The Indenture  will be discharged  and will cease to be of further  effect
(except as to surviving  rights of  registration  of transfer or exchange of the
Notes, as expressly  provided for in the Indenture) as to all outstanding  Notes
when (a) either  (i) all the  Notes,  theretofore  authenticated  and  delivered
(except  lost,  stolen or destroyed  Notes which have been  replaced or paid and
Notes for  whose  payment  money  has  theretofore  been  deposited  in trust or
segregated and held in trust by the Issuers and thereafter repaid to the Issuers
or  discharged  from  such  trust)  have  been  delivered  to  the  Trustee  for
cancellation  or (ii) all Notes not  theretofore  delivered  to the  Trustee for
cancellation  have  become due and  payable  and the  Issuers  have  irrevocably
deposited  or  caused  to be  deposited  with the  Trustee  funds  in an  amount
sufficient  to pay and  discharge  the  entire  Indebtedness  on the  Notes  not
theretofore  delivered  to the  Trustee  for  cancellation,  for  principal  of,
premium,  if any, and interest on the Notes to the date of deposit together with
irrevocable  instructions  from the Issuers  directing the Trustee to apply such
funds to the payment thereof at maturity or redemption,  as the case may be; (b)
the Issuers have paid all other sums payable under the Indenture by the Issuers;
and (c) the Issuers have delivered to the Trustee an officers'  certificate  and
an opinion of counsel stating that all conditions  precedent under the Indenture
relating to the  satisfaction  and discharge of the Indenture have been complied
with; provided, however, that such counsel may rely, as to matters of fact, on a
certificate or certificates of officers of the Issuers.

Modification of the Indenture

      From time to time, the Issuers, the Subsidiary Guarantors and the Trustee,
without  the  consent  of the  Holders,  may amend  the  Indenture  for  certain
specified purposes, including curing ambiguities, defects or inconsistencies, to
comply with any  requirements  of the  Commission in order to effect or maintain
the  qualification  of the  Indenture  under the TIA or to make any change  that
would provide any  additional  benefit or rights to the Holders or that does not
adversely  affect the rights of any Holder.  In formulating  its opinion on such
matters,  the  Trustee  will be  entitled  to rely on such  evidence as it deems
appropriate,  including,  without  limitation,  solely on an opinion of counsel;
provided,  however, that in delivering such opinion of counsel, such counsel may
rely, as to matters of fact, on a certificate or certificates of officers of the
Company.  Other  modifications  and amendments of the Indenture may be made with
the  consent  of the  Holders  of a  majority  in  principal  amount of the then
outstanding Notes issued under the Indenture,  except that,  without the consent
of each Holder  affected  thereby,  no  amendment  may: (a) reduce the amount of
Notes whose  Holders  must  consent to an  amendment;  (b) reduce the rate of or
change  or have  the  effect  of  changing  the time for  payment  of  interest,
including  defaulted  interest,  on any Notes;  (c) reduce the  principal  of or
change or have the effect of changing the fixed maturity of any Notes, or change
the date on which any Notes may be  subject  to  redemption  or  repurchase,  or
reduce the redemption or repurchase  price therefor;  (d) make any Notes payable
in money other than that stated in the Notes;  (e) make any change in provisions
of the  Indenture  protecting  the right of each  Holder to  receive  payment of
principal  of and  interest on such Note on or after the due date  thereof or to
bring suit to enforce  such  payment,  or  permitting  Holders of a majority  in
principal  amount of Notes to waive  Defaults or Events of  Default;  (f) amend,
change or modify in any material  respect the  obligation of the Issuers to make
and  consummate a Change of Control Offer in the event of a Change of Control or
make and consummate a Net Proceeds Offer with respect to any Asset Sale that has
been  consummated or modify any of the  provisions or  definitions  with respect
thereto;  (g) modify or change any  provision  of the  Indenture  or the related
definitions  affecting  ranking of the Notes or any  Guarantee in a manner which
adversely affects the Holders; or (h) release any Subsidiary  Guarantor from any
of its  obligations  under its  Guarantee  or the  Indenture  otherwise  than in
accordance with the terms of the Indenture.

Governing Law

      The Indenture  provides that the  Indenture,  the Notes and the Guarantees
will be governed by, and construed in accordance  with, the laws of the State of
New York but without giving effect to applicable  principles of conflicts of law
to the extent that the application of the law of another  jurisdiction  would be
required thereby.

The Trustee

      The Indenture  provides that, except during the continuance of an Event of
Default, the Trustee will perform only such duties as are specifically set forth
in the Indenture.  During the existence of an Event of Default, the Trustee will
exercise such rights and powers vested in it by the Indenture,  and use the same
degree of care and skill in its exercise as a prudent man would  exercise or use
under the circumstances in the conduct of his own affairs.

      The Indenture and the provisions of the TIA contain certain limitations on
the  rights of the  Trustee,  should it become a  creditor  of the  Issuers or a
Subsidiary  Guarantor,  to obtain  payments  of claims  in  certain  cases or to
realize on certain property received in respect of any such claim as security or
otherwise.  Subject to the TIA, the Trustee will be permitted to engage in other
transactions;  provided,  however,  that if the Trustee acquires any conflicting
interest as described in the TIA, it must eliminate such conflict or resign.

Certain Definitions

      Set forth below is a summary of certain of the  defined  terms used in the
Indenture.  Reference is made to the  Indenture  for the full  definition of all
such terms,  as well as any other terms used herein for which no  definition  is
provided.

      "Acquired  Indebtedness"  means  Indebtedness  of a  Person  or any of its
Subsidiaries  (i)  existing  at  the  time  such  Person  becomes  a  Restricted
Subsidiary or at the time it merges or  consolidates  with the Company or any of
its Restricted Subsidiaries or (ii) which becomes Indebtedness of the Company or
a Restricted  Subsidiary in connection  with the acquisition of assets from such
Person,  in each case not incurred in  connection  with, or in  anticipation  or
contemplation  of,  such  Person  becoming  a  Restricted   Subsidiary  or  such
acquisition, merger or consolidation.

      "Adjusted  Consolidated Net Tangible Assets" means (without  duplication),
as of the  date  of  determination,  (a) the sum of (i)  discounted  future  net
revenues  from proved oil and gas  reserves of the Company and its  consolidated
Subsidiaries,  calculated in accordance with Commission  guidelines  (before any
state or federal  income tax), as estimated by a nationally  recognized  firm of
independent  petroleum  engineers  as of a date no earlier  than the date of the
Company's latest annual consolidated  financial statements,  as increased by, as
of the date of determination,  the estimated discounted future net revenues from
(A)  estimated  proved  oil and gas  reserves  acquired  since  the date of such
year-end reserve report, and (B) estimated oil and gas reserves  attributable to
upward  revisions of estimates of proved oil and gas reserves  since the date of
such year-end  reserve report due to  exploration,  development or  exploitation
activities,  in each case calculated in accordance  with  Commission  guidelines
(utilizing the prices utilized in such year-end reserve  report),  and decreased
by,  as of the  date of  determination,  the  estimated  discounted  future  net
revenues from (C) estimated proved oil and gas reserves  produced or disposed of
since the date of such  year-end  reserve  report and (D)  estimated oil and gas
reserves  attributable to downward  revisions of estimates of proved oil and gas
reserves  since the date of such  year-end  reserve  report  due to  changes  in
geological  conditions or other factors which would, in accordance with standard
industry practice,  cause such revisions,  in each case calculated in accordance
with  Commission  guidelines  (utilizing  the prices  utilized in such  year-end
reserve  report);  provided,   however,  that,  in  the  case  of  each  of  the
determinations  made  pursuant to clauses (A) through (D),  such  increases  and
decreases shall be as estimated by the Company's petroleum engineers,  unless in
the event  that  there is a  Material  Change as a result of such  acquisitions,
dispositions or revisions,  then the discounted future net revenues utilized for
purposes of this clause  (a)(i) shall be  confirmed in writing,  by a nationally
recognized firm of independent  petroleum  engineers (which may be the Company's
independent petroleum engineers who prepare the Company's annual reserve report)
plus (ii) the capitalized  costs that are attributable to oil and gas properties
of the Company and its  Subsidiaries to which no proved oil and gas reserves are
attributable,  based on the Company's  books and records as of a date no earlier
than the date of the Company's latest annual or quarterly financial  statements,
plus (iii) the Net  Working  Capital  on a date no earlier  than the date of the
Company's latest consolidated annual or quarterly financial statements plus (iv)
with  respect to each other  tangible  asset of the Company or its  consolidated
Restricted Subsidiaries  specifically including, but not to the exclusion of any
other qualifying  tangible assets, the Company's or its consolidated  Restricted
Subsidiaries' gas producing facilities and unproved oil and gas properties (less
any  remaining  deferred  income  taxes  which have been  allocated  to such gas
processing  facilities  in  connection  with  the  acquisition  thereof),  land,
equipment,  leasehold  improvements,  investments  carried on the equity method,
restricted cash and the carrying value of marketable securities,  the greater of
(A) the net book value of such other  tangible  asset on a date no earlier  than
the date of the  Company's  latest  consolidated  annual or quarterly  financial
statements or (B) the appraised  value, as estimated by a qualified  Independent
Advisor,  of such  other  tangible  assets  of the  Company  and its  Restricted
Subsidiaries,  as of a date no  earlier  than the date of the  Company's  latest
audited financial statements minus (b) minority interests and, to the extent not
otherwise taken into account in determining  Adjusted  Consolidated Net Tangible
Assets,  any gas  balancing  liabilities  of the  Company  and its  consolidated
Restricted  Subsidiaries  reflected in the Company's  latest  audited  financial
statements.  In addition  to, but without  duplication  of, the  foregoing,  for
purposes of this definition,  "Adjusted  Consolidated Net Tangible Assets" shall
be calculated  after giving effect,  on a pro forma basis, to (1) any Investment
not  prohibited by the Indenture,  to and including the date of the  transaction
giving rise to the need to calculate  Adjusted  Consolidated Net Tangible Assets
(the "Assets  Transaction  Date"), in any other Person that, as a result of such
Investment, becomes a Restricted Subsidiary of the Company, (2) the acquisition,
to and  including  the Assets  Transaction  Date (by  merger,  consolidation  or
purchase of stock or assets),  of any  business  or assets,  including,  without
limitation,   Permitted  Industry  Investments,  and  (3)  any  sales  or  other
dispositions  of  assets  permitted  by  the  Indenture  (other  than  sales  of
Hydrocarbons  or other  mineral  products in the  ordinary  course of  business)
occurring on or prior to the Assets Transaction Date.

      "Affiliate"  means,  with respect to any specified  Person,  (a) any other
Person who directly or indirectly through one or more  intermediaries  controls,
or is controlled by, or under common control with, such specified Person and (b)
any Related  Person of such Person.  The term  "control"  means the  possession,
directly or  indirectly,  of the power to direct or cause the  direction  of the
management  and policies of a Person,  whether  through the  ownership of voting
securities,   by  contract  or  otherwise;   and  the  terms  "controlling"  and
"controlled" have meanings correlative of the foregoing.

      "Affiliate Transaction" has the meaning set forth under "Certain Covenants
- -- Limitation on Transactions with Affiliates."

      "Asset  Acquisition"  means  (a)  an  Investment  by  the  Company  or any
Restricted  Subsidiary  in any other Person  pursuant to which such Person shall
become a Restricted  Subsidiary,  or shall be merged with or into the Company or
any  Restricted  Subsidiary,  or  (b)  the  acquisition  by the  Company  or any
Restricted  Subsidiary  of the assets of any  Person  (other  than a  Restricted
Subsidiary)  which  constitute  all or  substantially  all of the assets of such
Person or comprises any division or line of business of such Person or any other
properties  or  assets  of such  Person  other  than in the  ordinary  course of
business.

      "Asset  Sale" means any direct or  indirect  sale,  issuance,  conveyance,
transfer,  exchange,  lease  (other than  operating  leases  entered into in the
ordinary  course of  business),  assignment  or other  transfer for value by the
Company or any of its Restricted  Subsidiaries (including any Sale and Leaseback
Transaction) to any Person other than the Company or a Restricted  Subsidiary of
(a) any Capital Stock of any Restricted Subsidiary; or (b) any other property or
assets  (including  any  interests  therein)  of the  Company or any  Restricted
Subsidiary,  including any  disposition by means of a merger,  consolidation  or
similar transaction;  provided,  however, that Asset Sales shall not include (i)
the  sale,  lease,   conveyance,   disposition  or  other  transfer  of  all  or
substantially all of the assets of the Company in a transaction which is made in
compliance with the provisions of "-- Certain Covenants -- Merger, Consolidation
and Sale of Assets", (ii) any Investment in an Unrestricted  Subsidiary which is
made in compliance with the provisions of "-- Certain Covenants -- Limitation on
Restricted   Payments"  above,  (iii)  disposals  or  replacements  of  obsolete
equipment in the ordinary course of business, (iv) the sale, lease,  conveyance,
disposition  or other  transfer  (each,  a  "Transfer")  by the  Company  or any
Restricted  Subsidiary  of  assets or  property  to the  Company  or one or more
Restricted  Subsidiaries,  (v) any  disposition of Hydrocarbons or other mineral
products for value in the  ordinary  course of business and (vi) the Transfer by
the Company or any  Restricted  Subsidiary of assets or property in the ordinary
course of business;  provided, however, that the aggregate amount (valued at the
fair market  value of such assets or property at the time of such  Transfer)  of
all such assets and property  Transferred  since the Issue Date pursuant to this
clause (vi) shall not exceed $1,000,000 in any one year.

      "Board of Directors"  means,  as to any Person,  the board of directors of
such Person or any duly authorized committee thereof.

      "Board  Resolution"  means,  with  respect  to any  Person,  a  copy  of a
resolution  certified by the Secretary or an Assistant  Secretary of such Person
to have been duly  adopted by the Board of Directors of such Person and to be in
full force and effect on the date of such  certification,  and  delivered to the
Trustee.

      "Business  Day" means any day other than a  Saturday,  Sunday or any other
day on which  banking  institutions  in the City of New  York  are  required  or
authorized by law or other governmental action to be closed.

      "Capitalized  Lease  Obligation"  means, as to any Person,  the discounted
present  value of the rental  obligations  of such  Person  under a lease of (or
other agreement conveying the right to use) any property (whether real, personal
or mixed) that is required to be classified and accounted for as a capital lease
obligation at such date, determined in accordance with GAAP.

      "Capital   Stock"  means  (a)  with  respect  to  any  Person  that  is  a
corporation, any and all shares, interests,  participations or other equivalents
(however  designated  and whether or not voting) of corporate  stock,  including
each class of Common Stock and Preferred  Stock of such Person and including any
warrants,  options or rights to acquire  any of the  foregoing  and  instruments
convertible into any of the foregoing and (b) with respect to any Person that is
not a corporation,  any and all  partnership  or other equity  interests of such
Person.

      "Cash  Equivalents"  means (a) marketable direct obligations issued by, or
unconditionally  guaranteed  by, the United  States  Government or issued by any
agency thereof and backed by the full faith and credit of the United States,  in
each case maturing  within one year from the date of  acquisition  thereof;  (b)
marketable  direct  obligations  issued  by any  state of the  United  States of
America  or  any  political   subdivision  of  any  such  state  or  any  public
instrumentality  thereof  maturing  within one year from the date of acquisition
thereof and, at the time of  acquisition,  having one of the two highest ratings
obtainable  from  either  Standard  &  Poor's  Corporation  ("S&P")  or  Moody's
Investors Service, Inc. ("Moody's");  (c) commercial paper maturing no more than
one year from the date of  creation  thereof  and,  at the time of  acquisition,
having a rating  of at least  A-1  from S&P or at least  P-1 from  Moody's;  (d)
certificates  of deposit or bankers'  acceptances  maturing within one year from
the date of acquisition  thereof issued by any bank organized  under the laws of
the United States of America or any state thereof or the District of Columbia or
any United  States  branch of a foreign  bank having at the date of  acquisition
thereof  combined  capital  and  surplus  of not  less  than  $250,000,000;  (e)
repurchase  obligations  with a term of not more than seven days for  underlying
securities of the types described in clause (a) above entered into with any bank
meeting the  qualifications  specified  in clause (d) above and (f) money market
mutual or similar funds having assets in excess of $100,000,000.

      "Change of Control"  means the  occurrence of one or more of the following
events: (a) any sale, lease, exchange or other transfer (in one transaction or a
series of related transactions) of all or substantially all of the assets of the
Company to any Person or group of related  Persons for purposes of Section 13(d)
of the Exchange Act (a "Group") (whether or not otherwise in compliance with the
provisions of the  Indenture);  (b) the approval by the holders of Capital Stock
of the Company of any plan or proposal for the liquidation or dissolution of the
Company  (whether or not  otherwise in  compliance  with the  provisions  of the
Indenture);  (c) any  Person  or Group  shall  become  the  owner,  directly  or
indirectly,  beneficially or of record, of shares  representing more than 35% of
the aggregate  ordinary  voting power  represented by the issued and outstanding
Capital Stock of the Company;  or (d) the replacement of a majority of the Board
of  Directors  of the  Company  over a two-year  period from the  directors  who
constituted  the Board of  Directors  of the  Company at the  beginning  of such
period  with  directors  whose  replacement  shall  not have been  approved  (by
recommendation,  nomination  or  election,  as the  case may be) by a vote of at
least a majority of the Board of  Directors  of the Company then still in office
who either were  members of such Board of  Directors  at the  beginning  of such
period or whose  election as a member of such Board of Directors was  previously
so approved.

      "Change of Control  Offer" has the  meaning  set forth under "-- Change of
Control."

      "Change of  Control  Payment  Date" has the  meaning  set forth  under "--
Change of Control."

      "Common Stock" of any Person means any and all shares,  interests or other
participations in, and other equivalents  (however designated and whether voting
or non-voting) of such Person's common stock,  whether  outstanding on the Issue
Date or issued  after the Issue Date,  and  includes,  without  limitation,  all
series and classes of such common stock.

      "Commission" means the Securities and Exchange Commission.

      "Company" means Abraxas Petroleum Corporation, a Nevada corporation.

      "Company  Properties"  means all  Properties,  and equity,  partnership or
other ownership interests therein, that are related or incidental to, or used or
useful in connection  with, the conduct or operation of any business  activities
of the Company or the Subsidiaries, which business activities are not prohibited
by the terms of the Indenture.

      "Consolidated EBITDA" means, for any period, the sum (without duplication)
of (a) Consolidated Net Income and (b) to the extent Consolidated Net Income has
been reduced  thereby,  (i) all income  taxes of the Company and its  Restricted
Subsidiaries paid or accrued in accordance with GAAP for such period (other than
income taxes  attributable to  extraordinary,  unusual or nonrecurring  gains or
losses or taxes  attributable  to sales or  dispositions  outside  the  ordinary
course of business), (ii) Consolidated Interest Expense, (iii) the amount of any
Preferred  Stock  dividends paid by the Company and its Restricted  Subsidiaries
and (iv)  Consolidated  Non-cash  Charges,  less any non-cash  items  increasing
Consolidated  Net Income for such period,  all as determined  on a  consolidated
basis for the Company and its Restricted Subsidiaries in accordance with GAAP.

      "Consolidated  EBITDA Coverage Ratio" means,  with respect to the Company,
the ratio of (a) Consolidated  EBITDA of the Company during the four full fiscal
quarters for which  financial  information in respect  thereof is available (the
"Four Quarter Period") ending on or prior to the date of the transaction  giving
rise to the need to  calculate  the  Consolidated  EBITDA  Coverage  Ratio  (the
"Transaction  Date") to (b)  Consolidated  Fixed  Charges of the Company for the
Four Quarter Period. In addition to and without limitation of the foregoing, for
purposes  of this  definition,  "Consolidated  EBITDA" and  "Consolidated  Fixed
Charges" shall be calculated after giving effect (without  duplication) on a pro
forma  basis  for the  period  of such  calculation  to (a)  the  incurrence  or
repayment  of  any  Indebtedness  of  the  Company  or  any  of  its  Restricted
Subsidiaries  (and the  application of the proceeds  thereof) giving rise to the
need to  make  such  calculation  and  any  incurrence  or  repayment  of  other
Indebtedness  (and the  application  of the  proceeds  thereof),  other than the
incurrence or repayment of  indebtedness  in the ordinary course of business for
working  capital  purposes  pursuant to working  capital  facilities,  occurring
during the Four Quarter Period or at any time  subsequent to the last day of the
Four  Quarter  Period  and on or  prior  to the  Transaction  Date,  as if  such
incurrence or repayment, as the case may be (and the application of the proceeds
thereof), occurred on the first day of the Four Quarter Period and (b) any Asset
Sales  or  Asset  Acquisitions   (including,   without  limitation,   any  Asset
Acquisition  giving rise to the need to make such calculation as a result of the
Company or one of its Restricted  Subsidiaries (including any Person who becomes
a  Restricted  Subsidiary  as a  result  of the  Asset  Acquisition)  incurring,
assuming  or  otherwise  being  liable  for  Acquired  Indebtedness,   and  also
including,  without  limitation,  any  Consolidated  EBITDA  attributable to the
assets which are the subject of the Asset  Acquisition  or Asset Sale during the
Four Quarter  Period)  occurring  during the Four Quarter  Period or at any time
subsequent  to the last day of the Four  Quarter  Period  and on or prior to the
Transaction  Date,  as if such Asset Sale or Asset  Acquisition  (including  the
incurrence, assumption or liability for any such Acquired Indebtedness) occurred
on the  first  day of the Four  Quarter  Period.  If the  Company  or any of its
Restricted  Subsidiaries  directly or indirectly  guarantees  Indebtedness  of a
third Person, the preceding sentence shall give effect to the incurrence of such
guaranteed  Indebtedness as if the Company or the Restricted Subsidiary,  as the
case  may be,  had  directly  incurred  or  otherwise  assumed  such  guaranteed
Indebtedness.  Furthermore,  in  calculating  "Consolidated  Fixed  Charges" for
purposes  of  determining  the  denominator  (but  not  the  numerator)  of this
"Consolidated  EBITDA Coverage Ratio," (i) interest on outstanding  Indebtedness
determined  on a  fluctuating  basis as of the  Transaction  Date and which will
continue to be so  determined  thereafter  shall be deemed to have  accrued at a
fixed  rate per annum  equal to the rate of  interest  on such  Indebtedness  in
effect on the Transaction  Date; (ii) if interest on any  Indebtedness  actually
incurred on the  Transaction  Date may  optionally  be determined at an interest
rate based upon a factor of a prime or similar  rate, a  eurocurrency  interbank
offered  rate,  or  other  rates,  then  the  interest  rate  in  effect  on the
Transaction  Date will be deemed to have been in effect  during the Four Quarter
Period;  (iii)   notwithstanding   clauses  (i)  and  (ii)  above,  interest  on
Indebtedness  determined on a fluctuating  basis, to the extent such interest is
covered by agreements relating to Interest Swap Obligations,  shall be deemed to
accrue at the rate per annum  resulting  after giving effect to the operation of
such agreements.

      "Consolidated  Fixed Charges"  means,  with respect to the Company for any
period,  the sum,  without  duplication,  of (a)  Consolidated  Interest Expense
(including any premium or penalty paid in connection  with redeeming or retiring
Indebtedness of the Company and its Restricted  Subsidiaries prior to the stated
maturity thereof pursuant to the agreements  governing such Indebtedness),  plus
(b) the  product of (i) the  amount of all  dividend  payments  on any series of
Preferred  Stock of the Company (other than dividends paid in Qualified  Capital
Stock) paid, accrued or scheduled to be paid or accrued during such period times
(ii) a fraction,  the numerator of which is one and the  denominator of which is
one minus  the then  current  effective  consolidated  federal,  state and local
income tax rate of such Person, expressed as a decimal.

      "Consolidated Interest Expense" means, with respect to the Company for any
period,  the sum of,  without  duplication:  (a) the  aggregate  of the interest
expense  of  the  Company  and  its  Restricted  Subsidiaries  for  such  period
determined on a consolidated  basis in accordance with GAAP,  including  without
limitation,  (i) any amortization of original issue discount, (ii) the net costs
under Interest Swap  Obligations,  (iii) all  capitalized  interest and (iv) the
interest  portion  of any  deferred  payment  obligation;  and (b) the  interest
component of Capitalized Lease Obligations paid,  accrued and/or scheduled to be
paid or accrued by the  Company  and its  Restricted  Subsidiaries  during  such
period, as determined on a consolidated basis in accordance with GAAP.

      "Consolidated  Net  Income"  means,  with  respect to the  Company for any
period,  the  aggregate  net income (or loss) of the Company and its  Restricted
Subsidiaries for such period on a consolidated  basis,  determined in accordance
with  GAAP;  provided,  however,  that there  shall be  excluded  therefrom  (a)
after-tax gains from Asset Sales or abandonments or reserves  relating  thereto,
(b) after-tax items classified as  extraordinary or nonrecurring  gains, (c) the
net  income of any  Person  acquired  in a "pooling  of  interests"  transaction
accrued  prior to the date it becomes a  Restricted  Subsidiary  or is merged or
consolidated with the Company or any Restricted  Subsidiary,  (d) the net income
(but not loss) of any Restricted  Subsidiary to the extent that the  declaration
of dividends or similar  distributions  by that  Restricted  Subsidiary  of that
income is restricted by charter,  contract,  operation of law or otherwise,  (e)
the net income of any Person in which the Company has an interest,  other than a
Restricted  Subsidiary,  except to the extent of cash dividends or distributions
actually paid to the Company or to a Restricted  Subsidiary by such Person,  (f)
income or loss  attributable  to  discontinued  operations  (including,  without
limitation,  operations  disposed  of during  such  period  whether  or not such
operations were classified as  discontinued)  and (g) in the case of a successor
to the Company by  consolidation  or merger or as a transferee  of the Company's
assets,  any net income  (or loss) of the  successor  corporation  prior to such
consolidation, merger or transfer of assets.

      "Consolidated  Net  Worth"  of  any  Person  as  of  any  date  means  the
consolidated  stockholders' equity of such Person,  determined on a consolidated
basis in accordance with GAAP, less (without  duplication)  amounts attributable
to Disqualified Capital Stock of such Person.

      "Consolidated  Non-cash Charges" means,  with respect to the Company,  for
any  period,  the  aggregate  depreciation,  depletion,  amortization  and other
non-cash  expenses  of the  Company  and its  Restricted  Subsidiaries  reducing
Consolidated  Net  Income  of the  Company  for  such  period,  determined  on a
consolidated   basis  in  accordance  with  GAAP  (excluding  any  such  charges
constituting an extraordinary  item or loss or any such charge which requires an
accrual of or a reserve for cash charges for any future period).

      "consolidation"  means,  with respect to any Person,  the consolidation of
the accounts of the  Restricted  Subsidiaries  of such Person with those of such
Person, all in accordance with GAAP;  provided,  however,  that  "consolidation"
will not include consolidation of the accounts of any Unrestricted Subsidiary of
such Person with the  accounts of such  Person.  The term  "consolidated"  has a
correlative meaning to the foregoing.

      "Covenant Defeasance" has the meaning set forth under "-- Legal Defeasance
and Covenant Defeasance."

      "Crude  Oil  and  Natural  Gas  Business"   means  (i)  the   acquisition,
exploration, development, operation and disposition of interests in oil, gas and
other hydrocarbon  properties located in North America,  and (ii) the gathering,
marketing,  treating,  processing,  storage,  selling  and  transporting  of any
production from such interests or properties of the Company or of others.

      "Crude Oil and Natural Gas Hedge  Agreements"  means,  with respect to any
Person,  any oil and gas agreements and other  agreements or arrangements or any
combination  thereof  entered  into by such  Person  in the  ordinary  course of
business and that is designed to provide  protection against oil and natural gas
price fluctuations.

      "Crude Oil and Natural Gas  Properties"  means all  Properties,  including
equity or other ownership interests therein, owned by any Person which have been
assigned "proved oil and gas reserves" as defined in Rule 4-10 of Regulation S-X
of the Securities Act as in effect on the Issue Date.

      "Crude Oil and Natural Gas Related Assets" means any Investment or capital
expenditure (but not including additions to working capital or repayments of any
revolving credit or working capital borrowings) by the Company or any Subsidiary
of the  Company  which  is  related  to the  business  of the  Company  and  its
Subsidiaries as it is conducted on the date of the Asset Sale giving rise to the
Net Cash Proceeds to be reinvested.

      "Currency  Agreement" means any foreign exchange  contract,  currency swap
agreement  or other  similar  agreement or  arrangement  designed to protect the
Company or any  Restricted  Subsidiary of the Company  against  fluctuations  in
currency values.

      "Default"  means an event or condition the occurrence of which is, or with
the lapse of time or the giving of notice or both would be, an Event of Default.

      "Disqualified  Capital  Stock"  means that  portion of any  Capital  Stock
which,  by  its  terms  (or by  the  terms  of any  security  into  which  it is
convertible  or for  which it is  exchangeable),  or upon the  happening  of any
event,  matures  or  is  mandatorily  redeemable,  pursuant  to a  sinking  fund
obligation or otherwise,  or is mandatorily redeemable at the sole option of the
holder  thereof,  in whole or in part,  in either case, on or prior to the final
maturity of the Notes.

      "Equity  Offering"  means an offering of  Qualified  Capital  Stock of the
Company.

      "Exchange Act" means the Securities  Exchange Act of 1934, as amended,  or
any successor statute or statutes thereto.

      "fair market  value"  means,  with  respect to any asset or property,  the
price which could be negotiated in an arm's-length, free market transaction, for
cash,  between an informed and willing seller and an informed and willing buyer,
neither  of  whom  is  under  undue  pressure  or  compulsion  to  complete  the
transaction.  Fair market value shall be determined by the Board of Directors of
the Company  acting  reasonably  and in good faith and shall be  evidenced  by a
Board  Resolution of the Company  delivered to the Trustee;  provided,  however,
that (A) if the aggregate  non-cash  consideration to be received by the Company
or any Restricted Subsidiary from any Asset Sale shall reasonably be expected to
exceed  $5,000,000  or (B) if the net worth of any  Restricted  Subsidiary to be
designated as an Unrestricted  Subsidiary shall reasonably be expected to exceed
$10,000,000,  then fair  market  value  shall be  determined  by an  Independent
Advisor.

      "GAAP" means  generally  accepted  accounting  principles set forth in the
opinions and  pronouncements of the Accounting  Principles Board of the American
Institute of Certified Public  Accountants and statements and  pronouncements of
the Financial Accounting Standards Board as of any date of determination.

      "Holder" means any Person holding a Note.

      "Hydrocarbons"  means oil, gas,  casinghead  gas, drip  gasoline,  natural
gasoline, condensate,  distillate, liquid hydrocarbons, gaseous hydrocarbons and
all  constituents,   elements  or  compounds  thereof  and  products   processed
therefrom.

      "incur"  has  the  meaning  set  forth  under  "--  Certain  Covenants  --
Limitation on Incurrence of Additional Indebtedness."

      "Indebtedness" means with respect to any Person, without duplication,  (a)
all Obligations of such Person for borrowed  money,  (b) all Obligations of such
Person evidenced by bonds, debentures,  notes or other similar instruments,  (c)
all Capitalized  Lease  Obligations of such Person,  (d) all Obligations of such
Person  issued or  assumed  as the  deferred  purchase  price of  property,  all
conditional  sale  obligations  and all  Obligations  under any title  retention
agreement (but excluding  trade accounts  payable),  (e) all Obligations for the
reimbursement  of any  obligor on a letter of  credit,  banker's  acceptance  or
similar credit transaction,  (f) guarantees and other contingent  obligations in
respect of Indebtedness  referred to in clauses (a) through (e) above and clause
(h) below,  (g) all  Obligations  of any other Person of the type referred to in
clauses (a)  through (f) above which are secured by any Lien on any  property or
asset of such  Person,  the  amount of such  Obligation  being  deemed to be the
lesser of the fair market  value of such  property or asset or the amount of the
Obligation  so  secured,  (h) all  Obligations  under  Currency  Agreements  and
Interest Swap Obligations and (i) all Disqualified  Capital Stock issued by such
Person with the amount of Indebtedness  represented by such Disqualified Capital
Stock being equal to the greater of its  voluntary  or  involuntary  liquidation
preference  and its maximum  fixed  redemption  price or repurchase  price.  For
purposes  hereof,  the  "maximum  fixed  repurchase  price" of any  Disqualified
Capital Stock which does not have a fixed  repurchase  price shall be calculated
in  accordance  with the  terms of such  Disqualified  Capital  Stock as if such
Disqualified  Capital  Stock were  purchased  on any date on which  Indebtedness
shall be required to be determined pursuant to the Indenture,  and if such price
is based  upon,  or  measured  by, the fair  market  value of such  Disqualified
Capital Stock, such fair market value shall be determined reasonably and in good
faith by the Board of  Directors  of the  Company.  The  "amount" or  "principal
amount" of Indebtedness at any time of determination as used herein  represented
by (a) any Indebtedness issued at a price that is less than the principal amount
at  maturity  thereof  shall be the face  amount  of the  liability  in  respect
thereof,  (b) any Capitalized Lease Obligation shall be the amount determined in
accordance  with the  definition  thereof,  (c) any  Interest  Swap  Obligations
included in the  definition  of Permitted  Indebtedness  shall be zero,  (d) all
other  unconditional  obligations  shall be the amount of the liability  thereof
determined  in  accordance  with GAAP and (e) all other  contingent  obligations
shall be the maximum liability at such date of such Person.

      "Independent   Advisor"  means  a  reputable   accounting,   appraisal  or
nationally  recognized  investment  banking,  engineering or consulting firm (a)
which does not, and whose  directors,  officers and  employees or  Affiliates do
not, have a direct or indirect  material  financial  interest in the Company and
(b)  which,  in the  judgment  of the  Board of  Directors  of the  Company,  is
otherwise disinterested, independent and qualified to perform the task for which
it is to be engaged.

      "Initial  Purchasers"  means,  collectively,  BT  Securities  Corporation,
Bankers Trust International plc, Jefferies & Company, Inc. and ING Baring (U.S.)
Securities Corporation.

      "Interest Swap  Obligations"  means the obligations of any Person pursuant
to any arrangement with any other Person, whereby, directly or indirectly,  such
Person is entitled to receive from time to time periodic payments  calculated by
applying  either a floating  or a fixed rate of  interest  on a stated  notional
amount in exchange for periodic payments made by such other Person calculated by
applying a fixed or a floating rate of interest on the same notional  amount and
shall include,  without limitation,  interest rate swaps, caps, floors,  collars
and similar agreements.

      "Investment" means, with respect to any Person, any direct or indirect (i)
loan, advance or other extension of credit  (including,  without  limitation,  a
guarantee) or capital contribution to (by means of any transfer of cash or other
property  (valued at the fair market  value  thereof as of the date of transfer)
others or any  payment  for  property  or  services  for the  account  or use of
others),  (ii)  purchase or  acquisition  by such  Person of any Capital  Stock,
bonds, notes, debentures or other securities or evidences of Indebtedness issued
by, any Person (whether by merger, consolidation,  amalgamation or otherwise and
whether  or not  purchased  directly  from  the  issuer  of such  securities  or
evidences of Indebtedness), (iii) guarantee or assumption of the Indebtedness of
any other Person (other than the guarantee or assumption of Indebtedness of such
Person or a Restricted  Subsidiary of such Person which  guarantee or assumption
is made in compliance with the provisions of "-- Certain Covenants -- Limitation
on  Incurrence  of Additional  Indebtedness"  above),  and (iv) other items that
would be classified as investments on a balance sheet of such Person prepared in
accordance with GAAP. Notwithstanding the foregoing,  "Investment" shall exclude
extensions  of trade credit by the Company and its  Restricted  Subsidiaries  on
commercially  reasonable  terms in accordance with normal trade practices of the
Company  or such  Restricted  Subsidiary,  as the case may be. The amount of any
Investment  shall not be  adjusted  for  increases  or  decreases  in value,  or
write-ups,  write-downs or write-offs  with respect to such  Investment.  If the
Company or any Restricted  Subsidiary sells or otherwise disposes of any Capital
Stock of any Restricted  Subsidiary  such that,  after giving effect to any such
sale or  disposition,  it ceases to be a Subsidiary of the Company,  the Company
shall be  deemed  to have  made an  Investment  on the date of any such  sale or
disposition  equal  to the  fair  market  value  of the  Capital  Stock  of such
Restricted Subsidiary not sold or disposed of.

      "Issue Date" means the date of original issuance of the Notes.

      "Legal  Defeasance"  has the meaning set forth under "-- Legal  Defeasance
and Covenant Defeasance."

      "Lien" means any lien, mortgage, deed of trust, pledge, security interest,
charge or encumbrance of any kind (including any conditional sale or other title
retention  agreement,  any lease in the nature thereof and any agreement to give
any security interest).

      "Material  Change" means an increase or decrease of more than 10% during a
fiscal quarter in the discounted  future net cash flows (excluding  changes that
result  solely from  changes in prices)  from proved oil and gas reserves of the
Company and consolidated  Subsidiaries (before any state or federal income tax);
provided,  however, that the following will be excluded from the Material Change
calculation:  (i) any  acquisitions  during the quarter of oil and gas  reserves
that have been  estimated  by  independent  petroleum  engineers  and on which a
report or reports  exist,  (ii) any  disposition  of properties  existing at the
beginning of such quarter that have been disposed of as provided in  "Limitation
on Asset Sales" and (iii) any reserves added during the quarter  attributable to
the  drilling  or  recompletion  of  wells  not  included  in  previous  reserve
estimates, but which will be included in future quarters.

      "Net Cash Proceeds" means, with respect to any Asset Sale, the proceeds in
the form of cash or Cash Equivalents  including  payments in respect of deferred
payment  obligations  when  received  in the  form of  cash or Cash  Equivalents
received by the Company or any of its  Restricted  Subsidiaries  from such Asset
Sale net of (a)  reasonable  out-of-pocket  expenses  and fees  relating to such
Asset Sale  (including,  without  limitation,  legal,  accounting and investment
banking fees and sales commissions), (b) taxes paid or payable after taking into
account any reduction in consolidated tax liability due to available tax credits
or deductions and any tax sharing  arrangements,  (c) repayment of  Indebtedness
that is  required  to be  repaid in  connection  with  such  Asset  Sale and (d)
appropriate  amounts  (determined by the Chief Financial Officer of the Company)
to be provided by the Company or any Restricted Subsidiary,  as the case may be,
as a reserve,  in accordance with GAAP, against any post closing  adjustments or
liabilities  associated  with such Asset Sale and retained by the Company or any
Restricted  Subsidiary,  as the case may be,  after such Asset Sale,  including,
without  limitation,  pension  and other  post-employment  benefit  liabilities,
liabilities   related  to  environmental   matters  and  liabilities  under  any
indemnification  obligations  associated with such Asset Sale (but excluding any
payments  which,  by the terms of the  indemnities  will not, be made during the
term of the Notes).

      "Net Proceeds Offer" has the meaning set forth under "-- Certain Covenants
- -- Limitation on Asset Sales."

      "Net  Proceeds  Offer  Amount" has the meaning set forth under "-- Certain
Covenants -- Limitation on Asset Sales."

      "Net  Proceeds  Offer  Payment  Date" has the  meaning set forth under "--
Certain Covenants -- Limitation on Asset Sales."

      "Net  Proceeds  Offer  Trigger  Date" has the  meaning set forth under "--
Certain Covenants -- Limitation on Asset Sales."

      "Net Working  Capital" means (i) all current assets of the Company and its
consolidated Subsidiaries, minus (ii) all current liabilities of the Company and
its  consolidated   Subsidiaries,   except  current   liabilities   included  in
Indebtedness,  in each case as set forth in financial  statements of the Company
prepared in accordance with GAAP.

      "New Credit  Facility"  means the Amended and  Restated  Credit  Agreement
dated as of November 14, 1996,  by and among the Company,  BTCo and ING Capital,
as  Co-Agents,  and each of the  Lenders  named  therein,  or any  successor  or
replacement  agreement  and  whether by the same or any other  agent,  lender or
group of  lenders,  together  with the  related  documents  thereto  (including,
without limitation,  any guarantee agreements and security  documents),  in each
case as such agreements may be amended  (including any amendment and restatement
thereof),  supplemented or otherwise  modified from time to time,  including any
agreements  extending  the maturity of,  refinancing,  replacing,  increasing or
otherwise  restructuring  all or any  portion  of the  Indebtedness  under  such
agreements.

      "Non-Recourse  Indebtedness" with respect to any Person means Indebtedness
of such Person for which (i) the sole legal recourse for collection of principal
and interest on such Indebtedness is against the specific property identified in
the instruments  evidencing or securing such  Indebtedness and such property was
acquired  with  the  proceeds  of such  Indebtedness  or such  Indebtedness  was
incurred within 90 days after the acquisition of such property and (ii) no other
assets of such  Person  may be  realized  upon in  collection  of  principal  or
interest on such  Indebtedness;  provided,  however,  that any such Indebtedness
shall  not  cease to be  "Non-Recourse  Indebtedness"  solely as a result of the
instrument  governing such Indebtedness  containing terms pursuant to which such
Indebtedness  becomes recourse upon (a) fraud or misrepresentation by the Person
in connection  with such  Indebtedness,  (b) such Person failing to pay taxes or
other  charges  that  result  in the  creation  of liens on any  portion  of the
specific  property  securing  such  Indebtedness  or  failing  to  maintain  any
insurance  on  such  property  required  under  the  instruments  securing  such
Indebtedness, (c) the conversion of any of the collateral for such Indebtedness,
(d) such Person failing to maintain any of the collateral for such  Indebtedness
in the condition required under the instruments  securing the Indebtedness,  (e)
any income generated by the specific property  securing such Indebtedness  being
applied  in a manner not  otherwise  allowed in the  instruments  securing  such
Indebtedness,  (f) the violation of any  applicable  law or ordinance  governing
hazardous  materials or  substances  or otherwise  affecting  the  environmental
condition of the specific  property  securing the Indebtedness or (g) the rights
of the holder of such Indebtedness to the specific  property becoming  impaired,
suspended or reduced by any act, omission or  misrepresentation  of such Person;
provided,  further,  however,  that upon the  occurrence of any of the foregoing
clauses (a) through (g) above, any such Indebtedness  which shall have ceased to
be  "Non-Recourse  Indebtedness"  shall  be  deemed  to have  been  Indebtedness
incurred by such Person at such time.

      "Obligations"  means all  obligations  for principal,  premium,  interest,
penalties, fees, indemnifications, reimbursements, damages and other liabilities
payable under the documentation governing any Indebtedness.

      "Payment  Restriction"  has  the  meaning  set  forth  under  "--  Certain
Covenants --  Limitation on Dividend and Other  Payment  Restrictions  Affecting
Restricted Subsidiaries."

      "Permitted   Indebtedness"  means,   without  duplication,   each  of  the
following:

      (a) Indebtedness under the Notes, the Exchange Notes, the Private Exchange
Notes, if any, the Indenture and the Guarantees;

      (b)  Indebtedness  incurred  pursuant  to the New  Credit  Facility  in an
aggregate  principal amount at any time  outstanding not to exceed  $50,000,000,
reduced  by any  required  permanent  repayments  (which  are  accompanied  by a
corresponding permanent commitment reduction) thereunder;

      (c) Interest Swap  Obligations  of the Company or a Restricted  Subsidiary
covering  Indebtedness  of the  Company or any of its  Restricted  Subsidiaries;
provided,  however,  that such  Interest  Swap  Obligations  are entered into to
protect  the  Company  and its  Restricted  Subsidiaries  from  fluctuations  in
interest rates on Indebtedness  incurred in accordance with the Indenture to the
extent the notional  principal amount of such Interest Swap Obligations does not
exceed the  principal  amount of the  Indebtedness  to which such  Interest Swap
Obligation relates;

      (d) Indebtedness of a Restricted  Subsidiary to the Company or to a Wholly
Owned  Restricted  Subsidiary  for so long as such  Indebtedness  is held by the
Company or a Wholly Owned Restricted Subsidiary, in each case subject to no Lien
held by a Person other than the Company or a Wholly Owned Restricted Subsidiary;
provided, however, that if as of any date any Person other than the Company or a
Wholly Owned Restricted  Subsidiary owns or holds any such Indebtedness or holds
a Lien in respect of

such Indebtedness,  such date shall be deemed the incurrence of Indebtedness not
constituting Permitted Indebtedness by the issuer of such Indebtedness;

      (e)  Indebtedness of the Company to a Wholly Owned  Restricted  Subsidiary
for  so  long  as  such  Indebtedness  is  held  by a  Wholly  Owned  Restricted
Subsidiary,  in each case subject to no Lien;  provided,  however,  that (i) any
Indebtedness  of the Company to any Wholly Owned  Restricted  Subsidiary that is
not a Subsidiary Guarantor is unsecured and subordinated,  pursuant to a written
agreement,  to the Company's  obligations  under the Indenture and the Notes and
(ii)  if as of any  date  any  Person  other  than  a  Wholly  Owned  Restricted
Subsidiary  owns or holds any such  Indebtedness  or holds a Lien in  respect of
such Indebtedness,  such date shall be deemed the incurrence of Indebtedness not
constituting Permitted Indebtedness by the Company;

      (f)  Indebtedness  arising from the honoring by a bank or other  financial
institution of a check, draft or similar instrument inadvertently (except in the
case of daylight  overdrafts) drawn against  insufficient  funds in the ordinary
course of business;  provided,  however,  that such Indebtedness is extinguished
within two Business Days of incurrence;

      (g)  Indebtedness  of the  Company or any of its  Restricted  Subsidiaries
represented  by  letters  of  credit  for the  account  of the  Company  or such
Restricted  Subsidiary,  as the case may be, in order to  provide  security  for
workers'   compensation   claims,   payment   obligations  in  connection   with
self-insurance or similar requirements in the ordinary course of business;

      (h) Refinancing Indebtedness;

      (i) Capitalized Lease Obligations of the Company  outstanding on the Issue
Date;

      (j) Capitalized Lease  Obligations and Purchase Money  Indebtedness of the
Company or any of its Restricted  Subsidiaries  not to exceed  $5,000,000 at any
one time outstanding;

      (k) Permitted Operating Obligations;

      (l) Obligations arising in connection with Crude Oil and Natural Gas Hedge
Agreements of the Company or a Restricted Subsidiary;

      (m) Non-Recourse Indebtedness;

      (n) Indebtedness under Currency Agreements; provided, however, that in the
case  of  Currency  Agreements  which  relate  to  Indebtedness,  such  Currency
Agreements do not increase the  Indebtedness  of the Company and its  Restricted
Subsidiaries  outstanding  other  than as a result of  fluctuations  in  foreign
currency  exchange  rates or by reason  of fees,  indemnities  and  compensation
payable thereunder;

      (o)  additional  Indebtedness  of the  Company  or  any of its  Restricted
Subsidiaries  in an aggregate  principal  amount at any time  outstanding not to
exceed the greater of (i) $10.0  million or (ii) 5.0% of  Adjusted  Consolidated
Net Tangible Assets of the Company; and

      (p) Indebtedness outstanding on the Issue Date.

      "Permitted   Industry   Investments"   means  (i)  capital   expenditures,
including, without limitation,  acquisitions of Company Properties and interests
therein;  (ii) (a) entry into  operating  agreements,  joint  ventures,  working
interests,  royalty interests,  mineral leases, unitization agreements,  pooling
arrangements or other similar or customary agreements, transactions, properties,
interests or  arrangements,  and  Investments  and  expenditures  in  connection
therewith or pursuant thereto, in each case made or entered into in the ordinary
course of the oil and gas business,  and (b) exchanges of Company Properties for
other  Company  Properties  of at least  equivalent  value as determined in good
faith by the Board of Directors of the Company;  (iii)  Investments of operating
funds on behalf of  co-owners  of Crude Oil and  Natural Gas  Properties  of the
Company or the Subsidiaries pursuant to joint operating agreements.

      "Permitted  Investments"  means  (a)  Investments  by the  Company  or any
Restricted  Subsidiary  in any Person that is or will become  immediately  after
such Investment a Restricted  Subsidiary or that will merge or consolidate  into
the  Company or a  Restricted  Subsidiary  that is not  subject  to any  Payment
Restriction,  (b)  Investments  in the  Company  by any  Restricted  Subsidiary;
provided,  however, that any Indebtedness evidencing any such Investment held by
a  Restricted  Subsidiary  that is not a Subsidiary  Guarantor is unsecured  and
subordinated,  pursuant to a written  agreement,  to the  Company's  obligations
under the Notes and the Indenture; (c) investments in cash and Cash Equivalents;
(d) Investments  made by the Company or its Restricted  Subsidiaries as a result
of  consideration  received in connection  with an Asset Sale made in compliance
with "--  Certain  Covenants  --  Limitation  on  Asset  Sales"  above;  and (e)
Permitted Industry Investments.

      "Permitted Liens" means each of the following types of Liens:

      (a) Liens  existing  as of the Issue  Date to the extent and in the manner
such Liens are in effect on the Issue Date (and any extensions,  replacements or
renewals thereof covering  property or assets secured by such Liens on the Issue
Date);

      (b) Liens securing Indebtedness  outstanding under the New Credit Facility
and Liens arising under the
Indenture;

      (c) Liens securing the Notes and the Guarantees;

      (d)  Liens of the  Company  or a  Restricted  Subsidiary  on assets of any
Restricted Subsidiary;

      (e) Liens securing Refinancing Indebtedness which is incurred to Refinance
any Indebtedness  which has been secured by a Lien permitted under the Indenture
and which has been incurred in accordance  with the provisions of the Indenture;
provided,  however, that such Liens (x) are no less favorable to the Holders and
are not more  favorable to the  lienholders  with respect to such Liens than the
Liens in respect of the  Indebtedness  being Refinanced and (y) do not extend to
or  cover  any  property  or  assets  of the  Company  or any of its  Restricted
Subsidiaries not securing the Indebtedness so Refinanced;

      (f) Liens for taxes,  assessments or governmental charges or claims either
(i) not delinquent or (ii)  contested in good faith by  appropriate  proceedings
and as to which the  Company  or a  Restricted  Subsidiary,  as the case may be,
shall have set aside on its books such  reserves as may be required  pursuant to
GAAP;

      (g) statutory and contractual Liens of landlords to secure rent arising in
the  ordinary  course of business  to the extent  such Liens  relate only to the
tangible  property of the lessee which is located on such  property and Liens of
carriers, warehousemen,  mechanics, suppliers, materialmen,  repairmen and other
Liens  imposed by law incurred in the  ordinary  course of business for sums not
yet  delinquent  or being  contested  in good  faith,  if such  reserve or other
appropriate provision, if any, as shall be required by GAAP shall have been made
in respect thereof;

      (h) Liens incurred or deposits made in the ordinary course of business (i)
in connection with workers' compensation, unemployment insurance and other types
of social security,  including any Lien securing letters of credit issued in the
ordinary  course  of  business  consistent  with  past  practice  in  connection
therewith, or (ii) to secure the performance of tenders,  statutory obligations,
surety and appeal bonds, bids,  leases,  government  contracts,  performance and
return-of-money  bonds and other similar  obligations  (exclusive of obligations
for the payment of borrowed money);

      (i) judgment and attachment Liens not giving rise to an Event of Default;

      (j) easements, rights-of-way, zoning restrictions,  restrictive covenants,
minor  imperfections  in title and other  similar  charges  or  encumbrances  in
respect of real  property  not  interfering  in any  material  respect  with the
ordinary  conduct  of the  business  of  the  Company  or any of its  Restricted
Subsidiaries;

      (k) any  interest  or  title  of a  lessor  under  any  Capitalized  Lease
Obligation;  provided  that such Liens do not extend to any  property  or assets
which is not leased property subject to such Capitalized Lease Obligation;

      (l) Liens  securing  Purchase  Money  Indebtedness  of the  Company or any
Restricted   Subsidiary;   provided,   however,  that  (i)  the  Purchase  Money
Indebtedness  shall not be secured by any  property  or assets of the Company or
any  Restricted  Subsidiary  other than the  property  and assets so acquired or
constructed and (ii) the Lien securing such Indebtedness shall be created within
90 days of such acquisition or construction;

      (m) Liens securing  reimbursement  obligations  with respect to commercial
letters of credit which encumber  documents and other property  relating to such
letters of credit and products and proceeds thereof;

      (n) Liens  encumbering  deposits made to secure  obligations  arising from
statutory,  regulatory,  contractual, or warranty requirements of the Company or
any of its Restricted Subsidiaries, including rights of offset and set-off;

      (o)  Liens  securing   Interest  Swap  Obligations   which  Interest  Swap
Obligations  relate  to  Indebtedness  that is  otherwise  permitted  under  the
Indenture and Liens securing Crude Oil and Natural Gas Hedge Agreements;

      (p) Liens securing Acquired  Indebtedness  incurred in accordance with "--
Certain Covenants -- Limitation on Incurrence of Additional Indebtedness" above;
provided, however, that (i) such Liens secured such Acquired Indebtedness at the
time of and prior to the incurrence of such Acquired Indebtedness by the Company
or a  Restricted  Subsidiary  and were not  granted in  connection  with,  or in
anticipation of, the incurrence of such Acquired  Indebtedness by the Company or
a  Restricted  Subsidiary  and (ii)  such  Liens do not  extend  to or cover any
property or assets of the Company or of any of its Restricted Subsidiaries other
than the property or assets that secured the Acquired  Indebtedness prior to the
time  such  Indebtedness  became  Acquired  Indebtedness  of  the  Company  or a
Restricted  Subsidiary and are no more favorable to the  lienholders  than those
securing the Acquired  Indebtedness  prior to the  incurrence  of such  Acquired
Indebtedness by the Company or a Restricted Subsidiary;

      (q) Liens on, or related to,  properties and assets of the Company and its
Subsidiaries  to secure  all or a part of the  costs  incurred  in the  ordinary
course  of  business  of   exploration,   drilling,   development,   production,
processing, transportation, marketing or storage, or operation thereof;

      (r) Liens on pipeline or pipeline  facilities,  Hydrocarbons or properties
and assets of the Company and its  Subsidiaries  which arise out of operation of
law;

      (s)  royalties,  overriding  royalties,  revenue  interests,  net  revenue
interests,  net profit interests,  revisionary  interests,  production payments,
production sales contracts,  operating  agreements and other similar  interests,
properties, arrangements and agreements, all as ordinarily exist with respect to
Properties  and assets of the Company and its  Subsidiaries  or otherwise as are
customary in the oil and gas business;

      (t) with  respect  to any  Properties  and assets of the  Company  and its
Subsidiaries,  Liens  arising  under,  or in  connection  with,  or related  to,
farm-out,  farm-in,  joint operation,  area of mutual interest agreements and/or
other  similar or  customary  arrangements,  agreements  or  interests  that the
Company  or any  Subsidiary  determines  in good faith to be  necessary  for the
economic development of such Property;

      (u) any (a)  interest or title of a lessor or  sublessor  under any lease,
(b)  restriction  or  encumbrance  that the  interest or title of such lessor or
sublessor may be subject to  (including,  without  limitation,  ground leases or
other prior leases of the demised  premises,  mortgages,  mechanics'  liens, tax
liens,  and easements),  or (c)  subordination  of the interest of the lessee or
sublessee under such lease to any restrictions or encumbrance referred to in the
preceding clause (b);

      (v) Liens in favor of  collecting or payor banks having a right of setoff,
revocation,  refund or chargeback  with respect to money or  instruments  of the
Company or any  Restricted  Subsidiary  on deposit with or in possession of such
bank; and

      (w) Liens securing Non-recourse Indebtedness.

      "Permitted Operating Obligations" means Indebtedness of the Company or any
Restricted  Subsidiary in respect of one or more standby letters of credit, bid,
performance or surety bonds, or other reimbursement obligations,  issued for the
account of, or entered into by, the Company or any Restricted  Subsidiary in the
ordinary course of business  (excluding  obligations  related to the purchase by
the Company or any Restricted  Subsidiary of Hydrocarbons  for which the Company
or such Restricted  Subsidiary has contracts to sell), or in lieu of any thereof
or in addition to any thereto,  guarantees and letters of credit  supporting any
such  obligations and  Indebtedness  (in each case, other than for an obligation
for borrowed money,  other than borrowed money represented by any such letter of
credit, bid, performance or surety bond, or reimbursement  obligation itself, or
any guarantee and letter of credit related thereto).

      "Person" means an  individual,  partnership,  corporation,  unincorporated
organization,  limited liability company,  trust, estate, or joint venture, or a
governmental agency or political subdivision thereof.

      "Preferred  Stock" of any Person  means any  Capital  Stock of such Person
that has  preferential  rights to any other  Capital  Stock of such  Person with
respect to dividends or redemptions or upon liquidation.

      "Property" means, with respect to any Person, any interests of such Person
in any kind of property or asset,  whether real,  personal or mixed, or tangible
or  intangible,   including,  without  limitation,  Capital  Stock,  partnership
interests and other equity or ownership interests in any other Person.

      "Purchase Money Indebtedness" means Indebtedness the net proceeds of which
are used to finance the cost (including the cost of construction) of property or
assets  acquired in the normal course of business by the Person  incurring  such
Indebtedness.

      "Qualified Capital Stock" means any Capital Stock that is not Disqualified
Capital Stock.

      "Reference Date" has the meaning set forth under "-- Certain  Covenants --
Limitation on Restricted Payments."

      "Refinance"  means,  in  respect  of  any  security  or  Indebtedness,  to
refinance,  extend, renew, refund, repay, prepay,  redeem, defease or retire, or
to issue a security  or  Indebtedness  in  exchange  or  replacement  for,  such
security or Indebtedness  in whole or in part.  "Refinanced"  and  "Refinancing"
shall have correlative meanings.

      "Refinancing  Indebtedness"  means any  Refinancing  by the Company or any
Restricted Subsidiary of the Company of Indebtedness incurred in accordance with
"-- Certain  Covenants -- Limitation  on Incurrence of Additional  Indebtedness"
above (other than  pursuant to clause (b),  (c),  (d),  (e), (f), (g), (j), (k),
(l), (n) or (o) of the definition of Permitted Indebtedness),  in each case that
does  not (i)  result  in an  increase  in the  aggregate  principal  amount  of
Indebtedness  of such Person as of the date of such proposed  Refinancing  (plus
the amount of any premium  required to be paid under the terms of the instrument
governing such Indebtedness and plus the amount of reasonable  expenses incurred
by  the  Company  and  its  Restricted  Subsidiaries  in  connection  with  such
Refinancing)  or (ii) create  Indebtedness  with (x) a Weighted  Average Life to
Maturity  that is less  than  the  Weighted  Average  Life  to  Maturity  of the
Indebtedness  being  Refinanced or (y) a final  maturity  earlier than the final
maturity of the Indebtedness being Refinanced;  provided,  however,  that (1) if
such  Indebtedness  being  Refinanced  is  Indebtedness  of  the  Company  or  a
Subsidiary Guarantor,  then such Refinancing  Indebtedness shall be Indebtedness
solely  of the  Company  and/or  such  Subsidiary  Guarantor  and  (2)  if  such
Indebtedness  being  Refinanced  is  subordinate  or  junior  to the  Notes or a
Guarantee,  then such Refinancing Indebtedness shall be subordinate to the Notes
or such  Guarantee,  as the case may be, at least to the same  extent and in the
same manner as the Indebtedness being Refinanced.

      "Registration  Rights  Agreement" means the Registration  Rights Agreement
dated as of the Issue Date among the Company, the Subsidiary  Guarantors and the
Initial Purchasers.

      "Related  Person"  of any  Person  means  any  other  Person  directly  or
indirectly  owning 10% or more of the  outstanding  voting  Common Stock of such
Person (or, in the case of a Person  that is not a  corporation,  10% or more of
the equity interest in such Person).

      "Replacement Assets" has the meaning set forth under "-- Certain Covenants
- -- Limitation on Asset Sales."

      "Restricted Payment" has the meaning set forth under "-- Certain Covenants
- -- Limitation on Restricted Payments."

      "Restricted  Subsidiary"  means any Subsidiary of the Company  (including,
without limitation,  Canadian Abraxas) that has not been designated by the Board
of Directors of the Company, by a Board Resolution  delivered to the Trustee, as
an  Unrestricted  Subsidiary  pursuant  to and in  compliance  with "--  Certain
Covenants -- Limitation on Restricted and Unrestricted  Subsidiaries" above. Any
such designation may be revoked by a Board  Resolution of the Company  delivered
to the Trustee, subject to the provisions of such covenant.

      "Sale and Leaseback  Transaction" means any direct or indirect arrangement
with any  Person  or to which  any such  Person  is a party,  providing  for the
leasing to the Company or a Restricted Subsidiary of any property, whether owned
by the Company or any Restricted  Subsidiary at the Issue Date or later acquired
which has been or is to be sold or transferred by the Company or such Restricted
Subsidiary  to such  Person or to any other  Person from whom funds have been or
are to be advanced by such Person on the security of such property.

      "Subsidiary",  with respect to any Person,  means (a) any  corporation  of
which the  outstanding  Capital  Stock  having at least a majority  of the votes
entitled to be cast in the election of directors  under  ordinary  circumstances
shall at the time be owned,  directly or  indirectly,  by such Person or (b) any
other Person of which at least a majority of the voting interests under ordinary
circumstances is at the time, directly or indirectly, owned by such Person.

      "Subsidiary Guarantor" means each of the Company's Restricted Subsidiaries
that in the future  executes a supplemental  indenture in which such  Restricted
Subsidiary  agrees to be bound by the  terms of the  Indenture  as a  Subsidiary
Guarantor;   provided,  however,  that  any  Person  constituting  a  Subsidiary
Guarantor as described  above shall cease to  constitute a Subsidiary  Guarantor
when its Guarantee is released in accordance with the terms of the Indenture.

      "Surviving  Entity" has the meaning set forth under "-- Certain  Covenants
- -- Merger, Consolidation and Sale of Assets."

      "Unrestricted  Subsidiary" means any Subsidiary of the Company  designated
as such pursuant to and in compliance  with "-- Certain  Covenants -- Limitation
on Restricted and Unrestricted  Subsidiaries"  above;  provided,  however,  that
Unrestricted  Subsidiaries  shall  initially  include Cascade Oil & Gas Ltd., an
Alberta,   Canada   corporation,   Grey  Wolf  Exploration,   Ltd.,  an  Alberta
corporation, and Western Associated Energy Corporation, a Texas corporation. Any
such designation may be revoked by a Board  Resolution of the Company  delivered
to the Trustee, subject to the provisions of such covenant.

      "Weighted   Average  Life  to  Maturity"   means,   when  applied  to  any
Indebtedness  at any date, the number of years obtained by dividing (a) the then
outstanding  aggregate principal amount of such Indebtedness into (b) the sum of
the total of the products  obtained by  multiplying  (i) the amount of each then
remaining  installment,  sinking fund, serial maturity or other required payment
of principal,  including payment at final maturity,  in respect thereof, by (ii)
the number of years  (calculated to the nearest  one-twelfth)  which will elapse
between such date and the making of such payment.

      "Wholly Owned Restricted  Subsidiary"  means any Restricted  Subsidiary of
which all the outstanding  voting  securities  normally  entitled to vote in the
election  of  directors  are  owned  by the  Company  or  another  Wholly  Owned
Restricted Subsidiary.



<PAGE>


                          DESCRIPTION OF CAPITAL STOCK

Common Stock

Abraxas

   
      Abraxas is authorized  to issue  50,000,000  shares of Common  Stock,  par
value $.01 per share. At January 20, 1997, there were 5,804,812 shares of Common
Stock issued and  outstanding.  Holders of the Common Stock are entitled to cast
one vote for each share  held of record on all  matters  submitted  to a vote of
stockholders  and are not  entitled  to  cumulate  votes  for  the  election  of
directors.  Holders of Common Stock do not have  preemptive  rights to subscribe
for additional shares of Common Stock issued by Abraxas.
    

      Holders of the Common  Stock are  entitled to receive  dividends as may be
declared by the Board of  Directors  out of funds  legally  available  therefor,
subject to the rights of the holders of Abraxas'  Series 1995-B  Preferred Stock
and any  subsequently  issued classes or series of Abraxas'  Preferred Stock. No
dividend  may be declared or paid on the Common Stock and no Common Stock may be
purchased by Abraxas, unless all accrued and unpaid dividends on the outstanding
Series 1995-B Preferred Stock for all past or current dividend periods,  if any,
have been paid,  except for a purchase of shares of the Common  Stock by Abraxas
pursuant to Rule  13e-4(h)(5) of the Exchange Act. In addition,  under the terms
of the New  Credit  Facility , Abraxas  may not pay  dividends  on shares of the
Common  Stock.  In the event of  liquidation,  holders of the  Common  Stock are
entitled  to share pro rata in any  distribution  of Abraxas'  assets  remaining
after  payment  of  liabilities,  subject to the  preferences  and rights of the
holders of the Series 1995-B Preferred  Stock. All of the outstanding  shares of
the Common Stock are fully paid and nonassessable.

      References  herein to  Abraxas'  Common  Stock  include  the common  share
purchase rights  distributed by Abraxas to its stockholders on November 17, 1994
as long as they trade with the Common Stock. See "-- Stockholder Rights Plan".

Canadian Abraxas

      Canadian  Abraxas is  authorized  to issue an unlimited  number  shares of
Common Stock,  without par value. At December 20, 1996,  there was one (1) share
of Common Stock issued and outstanding which was held by Abraxas. Holders of the
Common  Stock are entitled to cast one vote for each share held of record on all
matters  submitted  to a vote of  stockholders  and are not entitled to cumulate
votes  for the  election  of  directors.  Holders  of  Common  Stock do not have
preemptive  rights to subscribe for additional  shares of Common Stock issued by
Canadian Abraxas.

      Holders of the Common  Stock are  entitled to receive  dividends as may be
declared by the Board of  Directors  out of funds  legally  available  therefor,
subject to the rights of the holders of the class or series of Canadian Abraxas'
preferred  stock.  Under the terms of the New Credit Facility , Canadian Abraxas
may  not  pay  dividends  on  shares  of  the  Common  Stock.  In the  event  of
liquidation,  holders of the Common  Stock are entitled to share pro rata in any
distribution of Canadian Abraxas' assets remaining after payment of liabilities,
subject to the  preferences and rights of the holders of any shares of preferred
stock.  All of the  outstanding  shares of the  Common  Stock are fully paid and
nonassessable.

Preferred Stock

Abraxas

      General.  Abraxas' Articles of Incorporation  authorize the issuance of up
to 1,000,000 shares of Preferred Stock, par value $.01 per share, in one or more
series. The Board of Directors is authorized,  without any further action by the
stockholders,  to  determine  the dividend  rights,  dividend  rate,  conversion
rights, voting rights, rights and terms of redemption,  liquidation preferences,
sinking fund terms and other rights, preferences, privileges and restrictions of
any  series of  Preferred  Stock,  the  number of shares  constituting  any such
series, and the designation  thereof.  The rights of the holders of Common Stock
will be subject to, and may be  adversely  affected by, the rights of holders of
any Preferred Stock that may be issued in the future.

      Description  of Series 1995-B  Preferred  Stock.  Abraxas is authorized to
issue  1,000,000  shares of Preferred  Stock,  of which 45,741  shares have been
designated  as the Series  1995-B  Preferred  Stock.  The  holders of the Series
1995-B Preferred Stock have the full right and power to vote with the holders of
the Common  Stock on all matters on which the  stockholders  of the Common Stock
are entitled to vote.  Holders of the Series 1995-B Preferred Stock are entitled
to 11.11 votes for each share of the Series 1995-B  Preferred  Stock and are not
entitled to cumulate  votes in the election of directors.  Holders of the Series
1995-B  Preferred  Stock do not have  preemptive  rights to subscribe  for or to
purchase any additional  shares of the Series 1995-B Preferred Stock. All or any
shares of the Series  1995-B  Preferred  Stock may be  redeemed at the option of
Abraxas at any time  after  January 1, 1997 at $100 per share plus the amount of
accrued and unpaid  dividends.  If Abraxas redeems,  repurchases,  exchanges any
security or property for, or otherwise  acquires for consideration any shares of
Common Stock (other than an acquisition pursuant to Rule 13e-4(h)(5) promulgated
under the Exchange  Act) at a price equal to or greater than $100 divided by the
number of  shares of Common  Stock  into  which one share of the  Series  1995-B
Preferred  Stock is then  convertible,  any  holder of  shares of Series  1995-B
Preferred  Stock  may  require  Abraxas  to  redeem a number  of  shares of such
holder's  Series  1995-B  Preferred  Stock  equal  to the  product  of  (i)  the
percentage  of the shares of the Common Stock so redeemed or otherwise  acquired
times (ii) the total number of shares of the Series 1995-B  Preferred Stock held
by such  holder at a price per share  equal to the  product of (x) the number of
shares of Common  Stock that such  holder's  shares of Series  1995-B  Preferred
Stock is then  convertible  times  (y) the per share  price  paid for a share of
Common  Stock by Abraxas  plus all accrued and unpaid  dividends.  Each share of
Series 1995-B  Preferred  Stock may be converted,  subject to  adjustment,  into
11.11 shares of the Common Stock.

      Shares of the Series 1995-B  Preferred  Stock are entitled to a cumulative
dividend of $8.00 per share per annum payable on a quarterly basis,  when and if
declared by the Board of Directors. In the event of the dissolution, liquidation
or winding up of Abraxas, the holders of the Series 1995-B Preferred Stock shall
be  entitled  to receive an amount of money  equal to the  redemption  price per
share plus all accrued and unpaid dividends  thereon in cash or in any assets of
Abraxas  remaining  after the debts of Abraxas have been paid in full and before
any payment is made or assets set aside for payment to the holders of the Common
Stock.  All  outstanding  shares of the Series 1995-B  Preferred Stock are fully
paid and nonassessable.

Canadian Abraxas

      Canadian Abraxas'  Articles of Incorporation  authorize the issuance of an
unlimited  number of First  Preferred  Shares,  without par value.  The Board of
Directors is  authorized,  without any further  action by the  stockholders,  to
determine the dividend rights,  dividend rate, conversion rights, voting rights,
rights and terms of redemption,  liquidation preferences, sinking fund terms and
other rights,  preferences,  privileges and  restrictions of the First Preferred
Shares.  The rights of the holders of  Canadian  Abraxas'  Common  Stock will be
subject to, and may be adversely affected by, the rights of holders of the First
Preferred Shares that may be issued in the future.

Contingent Value Rights

   
      General.   The  CVRs  were  issued  under  the  CVR  Agreement  (the  "CVR
Agreement")  between  Abraxas  and  First  Union.  The  definitions  of  certain
capitalized  terms used in the  following  summary are set forth below under "--
Certain Definitions."
    

      Issuance of Shares at Extended  Maturity Date. The CVR Agreement  provides
that,  subject to adjustment as described under  "Antidilution"  below,  Abraxas
shall issue to each holder of the CVRs (each such person, a "CVR Holder") on the
Extended Maturity Date (as defined below), for each CVR held by such CVR Holder,
Abraxas shall issue a number of shares of Common Stock, if any, equal to (a) the
Target Price (as defined  below) minus the Current  Market Value  divided by (b)
the Current  Market Value;  provided,  however,  in no event shall more than 1.5
shares  of  Common  Stock be issued  in  exchange  for each CVR at the  Extended
Maturity Date.  Such  determination  by Abraxas  absent  manifest error shall be
final and binding on Abraxas and the CVR Holder.

      Determination that No Shares are Issuable With Respect to the CVRs. If the
Current  Market Value of a share of the Common Stock equals or exceeds $12.50 on
the Extended  Maturity Date, no shares of the Common Stock will be issuable with
respect  to the CVRs.  In  addition,  the CVRs will  terminate  if the Per Share
Market  Value (as  defined  below)  equals or exceeds  the Target  Price for any
period of 30 consecutive  Trading Days during the period from and after November
17, 1996 to and including November 17, 1997.

      In the event that  Abraxas  determines  that no shares of the Common Stock
are issuable with respect to the CVRs to the CVR Holders,  Abraxas shall give to
the CVR Holders notice of such determination. Upon making such determination and
absent manifest error, the CVRs shall terminate and become null and void and the
CVR Holders shall have no further  rights with respect  thereto.  The failure to
give such  notice or any defect  therein  shall not affect the  validity of such
determination.

      Antidilution. In the event Abraxas shall in any manner subdivide (by stock
split,  stock  dividend or  otherwise)  or combine  (by  reverse  stock split or
otherwise) the number of outstanding  shares of the Common Stock,  Abraxas shall
similarly  subdivide  or  combine  the CVRs and shall  approximately  adjust the
Target Price.  Whenever  such an adjustment is made,  Abraxas shall (i) promptly
prepare a certificate setting forth such adjustment and a brief statement of the
facts accounting for such adjustment, (ii) promptly file with First Union a copy
of such  certificate  and (iii) mail a brief summary thereof to each CVR Holder.
First Union shall be fully  protected in relying on any such  certificate and on
any adjustment therein contained. Such adjustment absent manifest error shall be
final  and  binding  on  Abraxas  and  the CVR  Holders.  Each  outstanding  CVR
Certificate shall  thenceforth  represent that number of adjusted CVRs necessary
to reflect such  subdivision  or  combination  and reflect the  adjusted  Target
Price.

      Consolidation,  Merger and Sale of Assets. The CVR Agreement provides that
Abraxas may, without the consent of the holders of any of the outstanding  CVRs,
consolidate with or merge into any other entity or convey, transfer or lease its
properties and assets substantially as an entirety to any entity,  provided that
(i) the Surviving Person (as defined below) assumes Abraxas'  obligations  under
the CVRs and the CVR  Agreement  and (ii)  Abraxas  delivers  to First  Union an
officer's certificate regarding compliance with the foregoing.  For the purposes
hereof, "convey, transfer or lease its properties and assets substantially as an
entirety" shall mean  properties and assets  contributing in the aggregate of at
least 80% of Abraxas'  total  revenues as  reported in Abraxas'  last  available
periodic  financial report  (quarterly or annual, as the case may be) filed with
the Commission.

      In the event that  Abraxas  were merged out of  existence,  liquidated  or
subject to some other event  resulting  in the lack of any market for the Common
Stock  (each,  a  "Transaction"),  the  holders of the CVRs would be entitled to
receive  securities of the  Surviving  Person or such other  consideration  that
holders of shares of the Common  Stock  received  in such a  Transaction  on the
basis described herein. In the event of a Transaction in which the consideration
received by the  stockholders  of Abraxas were shares of capital  stock or other
securities  of the  Surviving  Person,  the CVRs  would  mature on the  Extended
Maturity  Date,  the Target Price would be adjusted by dividing the Target Price
by the  Conversion  Ratio (as  defined  below) and the holders of the CVRs would
receive on the Extended Maturity Date a number of shares of the capital stock or
other  securities of the Surviving Person equal to (a) the Adjusted Target Price
(as defined  below) minus the Adjusted  Current  Market Value (as defined below)
divided by (b) the Adjusted Current Market Value; provided, however, in no event
shall the  Surviving  Person (a) be  required to issue a number of shares of its
capital stock or other securities greater than 1.5 times the Conversion Ratio at
the Extended  Maturity  Date and (b) issue shares of its capital  stock or other
securities which are not publicly traded to the holders of the CVRs for any CVRs
held by them. In the event that the shares of capital stock or other  securities
of the Surviving  Person to be issued in a Transaction are not publicly  traded,
the consideration to be received by the holders of the CVRs for any CVRs held by
them shall be cash calculated in the manner described in the following sentence.
In the event of a  Transaction  in which the  holders of Abraxas'  Common  Stock
received  cash, the holders of the CVRs would receive cash in an amount equal to
the Adjusted Target Price minus the cash received by the stockholders of Abraxas
for one share of the Common Stock on the effective  date of such a  Transaction;
provided,  however  that the holders of the CVRs would not receive  greater than
$7.50 per CVR in cash from and after  November  17,  1996 to and  including  the
Extended Maturity Date.

      Certain Definitions.

      "Adjusted  Current  Market  Value" per share  means,  with  respect to the
Extended  Maturity Date, the median of the averages of the closing bid prices of
the shares of capital stock or other securities of the Surviving Person received
by the holders of Common Stock in a Transaction on the principal  stock exchange
on which such shares of capital stock or other securities are traded during each
20  consecutive  Trading Day period  that both begins and ends in the  Valuation
Period.

      "Adjusted  Target Price" means the Target Price divided by the  Conversion
Ratio.

      "Authorized  Newspaper"  means  The Wall  Street  Journal,  or if The Wall
Street  Journal shall cease to be published,  or, if the  publication or general
circulation of The Wall Street  Journal shall be suspended for whatever  reason,
such other  English  language  newspaper  as is selected by Abraxas with general
circulation in The City of New York, New York.

      "Conversion  Ratio"  means the number of shares of capital  stock or other
securities  of the Surviving  Person  received by the holder of one (1) share of
the Common Stock.

      "Current  Market Value" means with respect to the Extended  Maturity Date,
the median of the  averages of the closing bid prices on the NASDAQ Stock Market
(or, if the Common Stock is listed on a securities  exchange,  on such exchange)
of shares of the Common Stock during each 20 consecutive trading day period that
both begins and ends in the Valuation Period.

      "Extended Maturity Date" means November 17, 1997.

      "Person" means any individual,  corporation,  partnership,  joint venture,
association,   joint-stock  company,  trust,   unincorporated   organization  or
government or any agency or political subdivision thereof.

      "Per Share Market Value" means on any particular  date (a) the closing bid
price per share of the Common Stock on such date on the principal stock exchange
on which the Common  Stock has been listed or, if there is no such price on such
date,  then the  average of such  prices on such  exchange  on the date  nearest
preceding  such  date,  or (b) if the  Common  Stock is not  listed on any stock
exchange,  the  average  of the high and low sales  prices for a share of Common
Stock in the over-the-counter market, as reported by the NASDAQ Stock Market for
such date,  or, if there are no such  prices on such date,  then the  average of
such prices on the date nearest  preceding such date, or (c) if the Common Stock
is not quoted on the NASDAQ Stock Market, the average of the final bid and final
asked  prices  for a share of  Common  Stock in the  over-the-counter  market as
reported  by  the  National  Quotation  Bureau   Incorporated  (or  any  similar
organization or agency succeeding to its functions of reporting prices),  or (d)
if the Common Stock is no longer publicly traded,  as determined by a nationally
recognized  or major  regional  investment  banking firm or firm of  independent
certified public accountants of recognized  standing (which may be the firm that
regularly  examines the financial  statements of Abraxas) selected in good faith
by the Board of Directors of Abraxas.

      "Surviving  Person"  means any  other  Person  into  which  Abraxas  shall
consolidate  with or merge into or the Person which  acquires by  conveyance  or
transfer or which leases, the properties and assets of Abraxas  substantially as
an entirety.

      "Target Price" means $12.50.  Upon each  occurrence of an event  specified
under  "Antidilution"  above,  such  amount,  as it  may  have  been  previously
adjusted, shall be adjusted as described under "Antidilution" above.

      "Trading  Day" means (a) a day on which the Common  Stock is traded on the
principal  stock  exchange on which the Common Stock has been listed,  or (b) if
the Common Stock is not listed on any stock exchange,  a day on which the Common
Stock is traded in the over-the-counter  market, as reported by the NASDAQ Stock
Market,  or (c) if the Common Stock is not traded on the NASDAQ Stock Market,  a
day on which  the  Common  Stock is  traded  in the  over-the-counter  market as
reported  by  the  National  Quotation  Bureau   Incorporated  (or  any  similar
organization or agency succeeding to its functions of reporting prices).

      "Valuation Period" means the 60 Trading Day period  immediately  preceding
(and including) the Maturity Date or the Extended Maturity Date.

Warrants

      Abraxas has warrants ("Warrants")  outstanding to purchase an aggregate of
437,500 shares of Common Stock.  Associated Energy Managers,  Inc. ("AEM"),  has
Warrants to  purchase  13,500  shares at an  exercise  price of $7.00 per share.
First  Union has  Warrants  to  purchase  424,000  shares of Common  Stock at an
exercise price of $9.79 per share.  These Warrants were issued to First Union in
connection  with  Abraxas'  credit  agreement.  First Union and AEM have certain
registration  rights with respect to shares of the Common Stock issued  pursuant
to the exercise of such Warrants. See " -- Registration Rights."

      All  outstanding  Warrants  contain  provisions that protect AEM and First
Union  against  dilution  by  adjusting  the  price at which  the  Warrants  are
exercisable  and the number of shares of the Common Stock issuable upon exercise
thereof  upon the  occurrence  of  certain  events,  including  payment of stock
dividends and distributions, stock splits, recapitalizations, reclassifications,
mergers,  consolidations  or the  issuance  or sale of Common  Stock or options,
rights or securities convertible into shares of the Common Stock, in the case of
AEM, at less than the current market price or, in the case of First Union,  at a
price less than the greater of the current market price or the exercise price. A
holder of Warrants has no rights as a stockholder  of Abraxas until the Warrants
are exercised.  All Warrants are currently exercisable,  although none have been
exercised as of the date hereof.

Registration Rights

      The shares of the Common  Stock to be received by AEM and First Union upon
exercise  of  Warrants  and any shares of the Common  Stock  owned by  Endowment
Energy  Partners,  L.P.  ("EEP")  and  Endowment  Energy  Partners  II,  Limited
Partnership  ("EEP II") are  entitled  to  certain  rights  with  respect to the
registration of such shares under the Securities Act.

      Under the terms of the Registration  Rights Agreement with EEP and EEP II,
in the event that Abraxas proposes to register any shares of the Common Stock or
securities  convertible  into Common Stock under the  Securities Act for its own
account,  except  in  certain  circumstances,  EEP  and EEP II are  entitled  to
unlimited Piggyback  Registrations,  subject to the right of the underwriters of
any such offering to limit the number of shares  included in such  registration.
Abraxas  has  agreed  to  pay  all  expenses  in  connection  with  a  Piggyback
Registration  except for underwriting  discounts and selling  commissions  which
shall be borne by EEP and/or EEP II with  respect to shares of the Common  Stock
owned by EEP and EEP II other than the 211,500  shares of Common Stock  acquired
by EEP and EEP II through the exercise of the Warrants formerly owned by EEP and
EEP II ("Warrant  Shares").  EEP and EEP II have the additional right to require
Abraxas  to effect  one Demand  Registration  of all shares of the Common  Stock
(other than Warrant Shares) in the aggregate at any time and Abraxas is required
to effect such  registration,  subject to certain  conditions  and  limitations.
Abraxas is required to bear the  expenses  of a Demand  Registration  except for
underwriting  discounts  and  selling  commissions  which  shall be borne by EEP
and/or  EEP II with  respect to shares of Common  Stock  owned by EEP and EEP II
other than Warrant Shares. Abraxas has agreed to customary indemnities including
an agreement to indemnify, subject to certain limited exceptions, EEP and EEP II
in connection with a Demand Registration and a Piggyback Registration.

      Under the terms of its Warrants,  AEM has the right to unlimited Piggyback
Registrations.  EEP and EEP II have the right to one Demand  Registration in the
aggregate  at  any  time  after  December  20,  1995  and  unlimited   Piggyback
Registrations  with  respect to Warrant  Shares.  Abraxas  has agreed to pay all
expenses in connection with Piggyback Registrations by AEM and by EEP and EEP II
with respect to Warrant Shares and to share expenses equally with EEP and EEP II
with respect to Warrant Shares  registered in a Demand  Registration;  provided,
however,  all underwriting  discounts and selling  commissions shall be borne by
EEP, EEP II or AEM, as the case may be.

      Under the terms of its  Warrants,  First Union has the right to two Demand
Registrations  and, subject to the rights to Piggyback  Registration of EEP, EEP
II and AEM,  unlimited  Piggyback  Registrations.  Abraxas will pay all expenses
incurred  in  connection  with any such  registration  other  than  underwriting
discounts and selling  commissions which shall be borne by First Union.  Abraxas
has also agreed to customary  indemnities,  including an agreement to indemnify,
subject  to  certain  limitations,  First  Union  in  connection  with a  Demand
Registration and a Piggyback Registration.

      Anti-takeover   Effects  of  Certain   Provisions   of  the   Articles  of
Incorporation and Bylaws

      Abraxas'  Articles of  Incorporation  and Bylaws  provide for the Board of
Directors  to be divided  into  three  classes of  directors  serving  staggered
three-year terms. As a result, approximately one-third of the Board of Directors
will be elected each year. The Articles of Incorporation and Bylaws provide that
the Board of Directors  will consist of not less than three nor more than twelve
members,  with  the  exact  number  to be  determined  from  time to time by the
affirmative  vote of a  majority  of  directors  then in  office.  The  Board of
Directors,  and not the stockholders,  has the authority to determine the number
of  directors,  and  could  prevent  any  stockholder  from  obtaining  majority
representation  on  Abraxas'  Board  of  Directors  by  enlarging  the  Board of
Directors  and by  filling  the new  directorships  with the  stockholder's  own
nominees.
In addition, directors may be removed by the stockholders only for cause.

      The Articles of Incorporation  and Bylaws provide that special meetings of
stockholders  of Abraxas  may be called only by the  Chairman of the Board,  the
President or a majority of the members of the Board of Directors. This provision
may make it more difficult for stockholders to take actions opposed by the Board
of Directors.

      The Articles of Incorporation  and Bylaws provide that any action required
to be taken or which may be taken by holders of Common Stock must be effected at
a duly called annual or special meeting of such holders, and may not be taken by
any written consent of such  stockholders.  These provisions may have the effect
of  delaying  consideration  of a  stockholder  proposal  until the next  annual
meeting unless a special  meeting is called by the persons set forth above.  The
provisions of the Articles of Incorporation and Bylaws  prohibiting  stockholder
action by written  consent could prevent the holders of a majority of the voting
power of Abraxas from using the written  consent  procedure to take  stockholder
action  and taking  action by consent  without  giving all the  stockholders  of
Abraxas  entitled to vote on a proposed action the opportunity to participate in
determining such proposed action.

Stockholder Rights Plan

      On  November  17,  1994,  the  Board of  Directors  of  Abraxas  adopted a
stockholder rights plan (the "Rights Plan"). Under the terms of the Rights Plan,
the Board of  Directors  of  Abraxas  declared a  dividend  of one common  share
purchase  right  ("Right")  on each share of the  Common  Stock  outstanding  on
November 17, 1994. Each Right entitles the holder thereof to buy one-half of one
share of  Common  Stock at an  exercise  price  of $40 per  share  ($20 per half
share), subject to adjustment.

      The Rights are not exercisable  until the occurrence of specified  events.
Upon the  occurrence of such an event (which  events are  generally  those which
would signify the commencement of a hostile bid to acquire Abraxas),  the Rights
then become exercisable (unless redeemed by the Board of Directors) for a number
of shares of Common Stock having a market value of four times the exercise price
of the Right. If the acquiror were to conclude the  acquisition of Abraxas,  the
Rights  would then become  exercisable  for shares of the  controlling/surviving
corporation  having a value of four times the exercise  price of the Rights.  If
the Rights were exercised at any time,  significant  dilution would result, thus
making the  acquisition  prohibitively  expensive for the acquiror.  In order to
encourage a bidder to  negotiate  with the Board of  Directors,  the Rights Plan
provides that the Rights may be redeemed under  prescribed  circumstances by the
Board of Directors.

      The Rights are not  intended to prevent a takeover of Abraxas and will not
interfere with any tender offer or business combination approved by the Board of
Directors.  The Rights Plan is intended to protect the stockholders in the event
of (a) an unsolicited  offer to acquire  Abraxas,  including  offers that do not
treat all stockholders equally, (b) the acquisition in the open market of shares
constituting  control of Abraxas without offering fair value to all stockholders
and (c) other coercive  takeover  tactics which could impair the Board's ability
to fully represent the interests of the stockholders.

Anti-takeover Statutes

      The Nevada GCL contains two  provisions,  described  below as "Combination
Provisions"  and the  "Control  Share  Act,"  that may make more  difficult  the
accomplishment  of  unsolicited  or hostile  attempts  to  acquire  control of a
corporation through certain types of transactions.

Restrictions on Certain  Combinations  Between Nevada Resident  Corporations and
Interested Stockholders

      The Nevada GCL includes certain provisions (the "Combination  Provisions")
prohibiting  certain  "combinations"   (generally  defined  to  include  certain
mergers,  disposition  of assets  transactions,  and share  issuance or transfer
transactions)  between  a  resident  domestic  corporation  and  an  "interested
stockholder" (generally defined to be the beneficial owner of 10% or more of the
voting  power  of the  outstanding  shares  of the  corporation),  except  those
combinations  which are approved by the board of directors before the interested
stockholder first obtained a 10% interest in the corporation's  stock. There are
additional  exceptions to the  prohibition,  which apply to combinations if they
occur more than three years after the interested stockholder's date of acquiring
shares.  The Combination  Provisions apply unless the corporation elects against
their  application  in its original  articles of  incorporation  or an amendment
thereto, or in its bylaws.  Abraxas' Articles of Incorporation and Bylaws do not
currently contain a provision rendering the Combination Provisions inapplicable.

Nevada Control Share Act

      Nevada's  Control Share  Acquisition Act (the "Control Share Act") imposes
procedural hurdles on and curtails greenmail practices of corporate raiders. The
Control  Share Act  temporarily  disenfranchises  the voting  power of  "control
shares" of a person or group  ("Acquiring  Person")  purchasing  a  "controlling
interest" in an "issuing  corporation" (as defined in the Nevada GCL) not opting
out of the Control  Share Act. In this regard,  the Control Share Act will apply
to an "issuing  corporation" unless, before an acquisition is made, the articles
of  incorporation or bylaws in effect on the tenth day following the acquisition
of a controlling interest provide that it is inapplicable.  Abraxas' Articles of
Incorporation  and Bylaws do not  currently  contain a provision  rendering  the
Control Share Act inapplicable.

      Under the Control  Share Act, an "issuing  corporation"  is a  corporation
organized in Nevada which has 200 or more stockholders, at least 100 of whom are
stockholders  of  record  (which  for  this  purpose  includes   registered  and
beneficial  owners) and  residents of Nevada,  and which does business in Nevada
directly or through an affiliated company.  The status of Abraxas at the time of
the occurrence of a transaction governed by the Control Share Act (assuming that
Abraxas'  Articles of  Incorporation or Bylaws have not theretofore been amended
to include an opting out provision)  would  determine  whether the Control Share
Act is applicable.

      The  Control  Share Act  requires  an  Acquiring  Person  to take  certain
procedural steps before he or it can obtain the full voting power of the control
shares. "Control shares" are the shares of a corporation (1) acquired or offered
to be acquired  which will  enable the  Acquiring  Person to own a  "controlling
interest," and (2) acquired  within 90 days  immediately  preceding that date. A
"controlling  interest" is defined as the ownership of shares which would enable
the Acquiring  Person to exercise  certain  graduated  amounts  (beginning  with
one-fifth) of all voting power of the corporation.  The Acquiring Person may not
vote any control shares without first obtaining  approval from the  stockholders
not characterized as "interested stockholders" (as defined below).

      To obtain voting rights in control shares,  the Acquiring Person must file
a  statement  at the  principal  office of the  issuer  ("Offeror's  Statement")
setting forth certain information about the acquisition or intended  acquisition
of  stock.  The  Offeror's  Statement  may also  request a  special  meeting  of
stockholders  to  determine  the voting  rights to be accorded to the  Acquiring
Person.  A special  stockholders'  meeting  must  then be held at the  Acquiring
Person's expense within 30 to 50 days after the Offeror's Statement is filed. If
a special meeting is not requested by the Acquiring  Person,  the matter will be
addressed at the next regular or special meeting of stockholders.

      At the  special or annual  meeting at which the issue of voting  rights of
control shares will be addressed,  "interested stockholders" may not vote on the
question of granting  voting  rights to control  the  corporation  or its parent
unless  the  articles  of  incorporation  of  the  issuing  corporation  provide
otherwise.  Abraxas'  Articles  of  Incorporation  do not  currently  contain  a
provision allowing for such voting power.

      If  full  voting  power  is  granted  to  the  Acquiring   Person  by  the
disinterested stockholders, and the Acquiring Person has acquired control shares
with a majority or more of the voting power, then (unless otherwise  provided in
the articles of incorporation or bylaws in effect on the tenth day following the
acquisition of a controlling  interest) all  stockholders of record,  other than
the Acquiring Person,  who have not voted in favor of authorizing  voting rights
for the control  shares,  must be sent a notice advising them of the fact and of
their  right to receive  "fair  value" for their  shares.  Abraxas'  Articles of
Incorporation and Bylaws do not provide otherwise. Within 20 days of the mailing
of the notice,  any such  stockholder may demand to receive from the corporation
the "fair  value" for all or part of his shares.  "Fair value" is defined in the
Control  Share  Act as "not less than the  highest  price per share  paid by the
Acquiring Person in an acquisition."

      The Control Share Act permits a corporation  to redeem the control  shares
in the following two instances,  if so provided in the articles of incorporation
or  bylaws  of  the  corporation  in  effect  on the  tenth  day  following  the
acquisition  of a controlling  interest:  (1) if the  Acquiring  Person fails to
deliver the  Offeror's  Statement  to the  corporation  within 10 days after the
Acquiring  Person's  acquisition  of the  control  shares;  or (2) an  Offeror's
Statement is  delivered,  but the control  shares are not  accorded  full voting
rights by the stockholders. Abraxas' Articles of Incorporation and Bylaws do not
address this matter.

          CERTAIN UNITED STATES AND CANADIAN INCOME TAX CONSIDERATIONS

   
      The  discussion  below is  intended  to be a  general  description  of the
material  United States and Canadian tax  consequences  of the Exchange Offer to
holders of the Notes. In addition,  the discussion  describes,  in general,  the
material  United  States  and  Canadian  tax  consequences  associated  with the
acquisition,  ownership  and  disposition  of the  Notes.  It does not take into
account the individual  circumstances  of any  particular  investor and does not
purport to discuss all of the possible tax consequences of the Exchange Offer or
the ownership or disposition of the Notes and is not intended as tax advice. The
summary  below is general in nature and does not  discuss  all aspects of United
States  and  Canadian  income  taxation  that may be  relevant  to a  particular
investor in the light of the investor's particular circumstances.
    

Certain U.S. Federal Income Tax Considerations

   
      The  following is a summary of certain  United States  federal  income tax
consequences  related  to  the  Exchange  Offer  and  the  associated  with  the
acquisition, ownership, and disposition of the Notes. The following summary does
not discuss all of the aspects of federal  income  taxation that may be relevant
to a  prospective  holder  of the  Notes  in  light  of  his  or her  particular
circumstances,  or to  certain  types of  holders  which are  subject to special
treatment  under the  federal  income tax laws  (including  persons who hold the
Notes  as part of a  conversion,  straddle  or  hedge,  dealers  in  securities,
insurance   companies,   tax-exempt   organizations,   financial   institutions,
broker-dealers  and S  corporations).  Further,  this summary  pertains  only to
holders  that are  citizens or  residents  of the United  States,  corporations,
partnerships or other entities created in or under the laws of the United States
or any political  subdivision  thereof, or estates or trusts the income of which
is subject to United States federal income taxation regardless of its source. In
addition,  this  summary does not  describe  any tax  consequences  under state,
local, or foreign tax laws.

      This summary is based upon the Internal  Revenue Code of 1986,  as amended
(the   "Code"),   Treasury   Regulations   (the   "Regulations"),   rulings  and
pronouncements  issued by the  Internal  Revenue  Service  ("IRS") and  judicial
decisions  now in  effect,  all of which  are  subject  to change at any time by
legislative,  judicial or administrative action. Any such changes may be applied
retroactively  in a manner that could adversely affect the holders of the Notes.
The  Issuers  have not  sought  and will  not seek any  rulings  from the IRS or
opinions from counsel with respect to the matters discussed below except for the
opinion of both U.S. and Canadian counsel with respect to the federal income tax
consequences  of the Exchange  Offer  delivered to the Issuers.  There can be no
assurance that the IRS will not take positions  concerning the tax  consequences
of the Exchange  Offer or the valuation,  purchase,  ownership or disposition of
the Notes which are different from those discussed herein.
    

Tax Consequences of the Exchange Offer

   
      An exchange of the Series A Notes for the Exchange  Notes  pursuant to the
Exchange Offer should not be treated as a significant modification of the Series
A Notes;  accordingly,  an Exchange Note should be treated as a continuation  of
the  corresponding  Series A Note and an exchanging  holder should not recognize
any  gain or  loss as a  result  of  participating  in the  Exchange  Offer.  In
addition,  an exchanging  Holder's  basis in an Exchange Note should be equal to
the  basis of the  corresponding  Series A Note and the  holding  period  for an
Exchange Note would include such holder's  holding period for the  corresponding
Series A Note.

      The Exchange Offer will not have any federal income tax  consequences to a
non-exchanging holder.

      Each  exchanging  holder  should  consult with his or her  individual  tax
advisor concerning any foreign,  state or local tax consequences of the Exchange
Offer as well as to the effect of his or her particular facts and  circumstances
on the matters discussed herein.
    

Taxation of Accrued Stated Interest on Notes

      Accrued  stated  interest  paid on a Note will  generally  be taxable to a
holder as ordinary  interest  income at the time it accrues or is  received,  in
accordance with the holder's regular method of accounting for federal income tax
purposes.

      The Company will annually  furnish to certain  record holders of the Notes
and the IRS information with respect to any stated interest  accruing during the
calendar year as may be required under applicable Regulations.

Market Discount

   
      If a holder  purchases a Note,  other than in connection with the Offering
or the Exchange Offering,  for less than the stated redemption price of the Note
at  maturity,  the  difference  is  considered  "market  discount,"  unless such
difference is "de  minimis,"  i.e.,  less than  one-fourth of one percent of the
stated  redemption  price of the Note at  maturity  multiplied  by the number of
complete years to maturity  (after the holder  acquires the Note).  Under market
discount  rules,  any gain realized by the holder on a taxable  disposition of a
Note having  "market  discount," as well as any partial  principal  payment made
with respect to such a Note, will be treated as ordinary income to the extent of
the then  "accrued  market  discount"  of the  Note.  The rules  concerning  the
calculation  of  "accrued  market  discount"  are  set  forth  in the  paragraph
immediately below. In addition, a holder of such a Note may be required to defer
the  deduction of all or a portion of the interest  expense on any  indebtedness
incurred to purchase or carry a Note having "market discount."
    

      Any market  discount will accrue  ratably from the date of  acquisition to
the maturity date of the Note, unless the holder elects,  irrevocably, to accrue
market discount on a constant  interest rate method.  The constant interest rate
method  generally  accrues  interest at times and in amounts  equivalent  to the
result which would have occurred had the market  discount  been  original  issue
discount computed from the date of the holder's  acquisition of the Note through
the maturity date. The election to accrue market discount on a constant interest
rate method is  irrevocable  but may be made  separately as to each Note held by
the holder.

      Accrual  of  market  discount  will not cause the  accrued  amounts  to be
included currently in a holder's taxable income, in the absence of a disposition
of, or  principal  payment  on,  the Note.  Nevertheless,  a holder may elect to
currently include market discount in income as it accrues on either a ratable or
constant interest rate method.  In such event,  interest expense relating to the
acquisition  of a Note which  would  otherwise  be deferred  would be  currently
deductible  to the extent  otherwise  permitted  by the Code.  The  election  to
include market discount in income  currently,  once made,  applies to all market
discount  obligations  acquired  by such holder on or after the first day of the
first taxable year to which the election applies and all subsequent years unless
revoked with the consent of the IRS.  Accrued market  discount which is included
in a holder's  gross income will  increase the adjusted tax basis of the Note in
the hands of the holder.

Acquisition Premium

      If a subsequent holder acquires a Note for an amount which is greater than
the  stated  redemption  price  of the Note at  maturity,  such  holder  will be
considered to have purchased such Note with  "amortizable bond premium" equal to
the amount of such excess.  The holder may elect to amortize the premium using a
constant yield method  employing six month  compounding over the period from the
acquisition  date to the  maturity  date of the Note.  Amortized  amounts may be
offset only against  interest  paid with respect to the Note and will reduce the
holder's  adjusted  tax basis in the Note to the extent so used.  Once made,  an
election to amortize  and offset  interest on the Note may be revoked  only with
the  consent  of the IRS and will  apply to all Notes  held by the holder on the
first day of the taxable  year to which the election  relates and to  subsequent
taxable years and to all Notes subsequently acquired by the holder.

Sale, Exchange or Other Taxable Disposition of the Notes

      The sale, redemption or other taxable disposition of a Note will result in
the  recognition  of gain  or  loss to the  holder  in an  amount  equal  to the
difference  between  (i) the amount of cash and fair  market  value of  property
received  (except to the extent  attributable  to the payment of accrued  stated
interest) in exchange therefore and (ii) the holder's adjusted tax basis in such
Note.  A holder's  initial tax basis in a Note  purchased by such holder will be
equal to the issue price of the Note.

      Any gain or loss on the sale, redemption or other taxable disposition of a
Note will be capital gain or loss,  except to the extent of any "accrued  market
discount,"  assuming a purchaser  of the Note holds such  security as a "capital
asset"  (generally  property held for investment)  within the meaning of Section
1221 of the Code.  Any capital  gain or loss will be  long-term  capital gain or
loss if the Note is held for more than one year and otherwise will be short-term
capital gain or loss.  Payments on such  disposition for accrued stated interest
not previously included in income will be treated as ordinary interest income.

Purchase or Redemption of Notes

      Effect of Change of Control and Asset Sale. Upon a Change of Control,  the
Issuers are required to offer to redeem all outstanding  Notes for a price equal
to 101% of the principal amount thereof plus accrued and unpaid stated interest.
See "Description of the Notes -- Redemption -- Optional  Redemption."  Under the
Regulations, such a Change of Control redemption requirement will not affect the
yield  or  maturity  date  of the  Notes  unless,  based  on all the  facts  and
circumstances  as of the issue date, it is more likely than not that a Change of
Control giving rise to the redemption will occur.  Upon certain asset sales, the
Issuers  will be  obligated  to offer to  repurchase  the  Notes at one  hundred
percent (100%) of the principal  amount thereof plus accrued and unpaid interest
to the date of  redemption.  The Issuers will not treat the Change of Control or
the asset sale  redemption  provisions of the Notes as affecting the calculation
of the yield to maturity of any Note.

      Optional Redemption.  The Issuers, at their option, may redeem part or all
of the Notes at any time on or after November 1, 2000, at the redemption  prices
set forth herein. In addition,  if the Issuers  consummate an Equity Offering on
or before  November 1, 1999,  the Issuers  may,  at their  option,  use all or a
portion of the proceeds  from such Equity  Offering to redeem up to  thirty-five
percent (35%) of the aggregate  principal amount of the Notes originally  issued
in the Offering at a redemption price equal to 111.5%, together with accrued and
unpaid interest to the date of redemption; provided, however, that, after giving
effect to any such  redemption,  at least $139.75  million  aggregate  principal
amount  of the  Notes  remains  outstanding.  See  "Description  of the Notes --
Redemption  -- Optional  Redemption."  For purposes of  determining  whether the
Notes are issued with any "original issue  discount," the Regulations  generally
provide  that an issuer  will be treated as  exercising  any such  option if its
exercise would lower the yield of the debt instrument.  A redemption of Notes at
the optional redemption prices, however, would increase rather than decrease the
effective yield of the debt instrument as calculated from the issue date.

      The  Issuers  do not  currently  intend  to  exercise  any of the  options
described above with respect to the Notes. Should the Issuers exercise an option
and redeem a Note,  the holder of the Note would be required to treat any amount
paid by the Issuers  which  exceeds the Note's  then  principal  balance and all
accrued and unpaid  interest  thereon as an amount  received in exchange for the
Note.

Backup Withholding

      The backup  withholding rules require a payor to deduct and withhold a tax
if (i) the payee  fails to  properly  furnish a taxpayer  identification  number
("TIN") to the payor,  (ii) the IRS notifies the payor that the TIN furnished by
the  payee is  incorrect,  (iii) the payee  has  failed to report  properly  the
receipt  of  "reportable  payments"  and the IRS has  notified  the  payor  that
withholding  is  required,  or (iv)  there  has been a  failure  of the payee to
certify  under a penalty of perjury  that a payee is not subject to  withholding
under Section 3406 of the Code. As a result,  if any one of the events discussed
above occurs with respect to a holder of Notes, the Company, its paying agent or
other  withholding  agent will be required to withhold a tax equal to 31% of any
"reportable  payment"  made in  connection  with  the  Notes to such  holder.  A
"reportable  payment" includes,  among other things,  amounts paid in respect of
interest  or  original  issue  discount  and  amounts  paid  through  brokers in
retirement of securities.  Any amounts withheld from a payment to a holder under
the backup  withholding rules will be allowed as a refund or credit against such
holder's  federal  income  tax,  provided,  that  the  required  information  is
furnished to the IRS. Certain holders (including, among others, corporations and
certain  tax-exempt  organizations)  are not  subject to the backup  withholding
rules.

Certain Canadian Federal Income Tax Considerations

   
      The  following is a general  summary of the  Canadian  federal and certain
provincial  income tax  consequences  to a holder of the Notes or Exchange Notes
who is not a resident of Canada,  who does not use or hold, and is not deemed to
use or hold,  the Notes or Exchange  Notes in the course of carrying on business
in Canada and is a person who,  throughout  the period during which the Notes or
Exchange  Notes are held deals at arm's length with Canadian  Abraxas and is not
deemed to deal  otherwise  than at arm's  length  with  Canadian  Abraxas.  This
summary  has been  prepared by  reference  to the Income Tax Act  (Canada)  (the
"Canadian Act"), the Income Tax Regulations (the "Canadian  Regulations"),  with
reference to all  published  proposals for the amendment of the Canadian Act and
the Canadian Regulations.
    

Receipt or Deemed Receipt of Interest

      The terms of the Notes are such that  interest paid or deemed to have been
paid (for  example,  where Notes are redeemed at a premium to their issue price)
on the Notes to a non-resident person with which Canadian Abraxas deals at arm's
length is exempt from taxation  under the Canadian Act.  Consequently,  provided
the aforementioned  conditions are met, holders of the Notes will on disposition
thereof not be subject to Canadian  taxation in respect of the receipt or deemed
receipt of interest thereon.



<PAGE>


Dispositions of the Notes and Tax Consequences of the Exchange Offer

      The Canadian Act does not impose a tax in respect of gains recognized upon
disposition  of Notes held by  non-resident  persons  who do not use or hold the
Exchange  Notes or the Notes in the course of  carrying on a business in Canada.
Consequently,  provided  that the  aforementioned  conditions  are met, any gain
recognized by a holder of the Notes or the Exchange Notes on a sale,  redemption
or other  disposition  (including any disposition under the Exchange Offer) will
not be  subject to  taxation  under the  Canadian  Act.  Any amount  paid upon a
disposition  of the Notes or the  Exchange  Notes which  represents  accrued and
unpaid interest will generally be treated as a deemed receipt of interest.



<PAGE>


                        TRANSACTIONS WITH RELATED PARTIES

      Messrs.  Watson,  Phelps and Riggs were founders of Grey Wolf and in April
1995  purchased  900,000  shares of the  capital  stock of Grey Wolf  (initially
representing  39% of the outstanding  shares) for an aggregate of CDN$90,000 (or
CDN$0.10 per share) in cash. In January 1996, the Company  purchased  20,325,096
shares of the capital stock of Grey Wolf  (representing  78% of the  outstanding
shares) for an aggregate of approximately CDN$4.1 million (or CDN$.20 per share)
in cash. Messrs.  Bruton, Engle, Phelps, Riggs and Watson currently own 13.8% of
the issued and outstanding  capital stock of Grey Wolf. In addition,  Mr. Watson
owns options to purchase up to 450,000 shares of Grey Wolf's capital stock at an
exercise price of CDN$.10 per share.

      Messrs.  Bruton,  Engle,  Phelps and Riggs own  options to purchase in the
aggregate  up to  2,600,000  shares of capital  stock of Cascade at an  exercise
price of CDN$.20  per share,  and Mr.  Watson  owns  options to  purchase  up to
800,000  shares of Cascade's  capital stock at an exercise  price of CDN$.34 per
share.
Cascade currently has 61,365,000 shares of capital stock outstanding.

      Wind River Resources  Corporation ("Wind River"), all of the capital stock
of which is owned by Mr. Watson,  owns a twin-engine  airplane.  The airplane is
available for business use by employees of the Company from time to time at $385
per hour.  The  Company  paid Wind River a total of $80,678 for use of the plane
during 1995.

      Mr. Watson and members of his family previously had an outstanding loan of
$328,259,  including  accrued  interest,  to Abraxas as of  December  31,  1994.
Abraxas made principal and interest payments of $354,677 on the note during 1995
which  represented  payment of all  principal  and interest due and owing on the
note.

      Abraxas has adopted a policy that transactions,  including loans,  between
Abraxas and its officers,  directors,  principal stockholders,  or affiliates of
any of them,  will be on terms no less favorable to Abraxas than can be obtained
on an arm's length basis in transactions with third parties and must be approved
by the vote of at least a majority of the disinterested directors.

                          BOOK-ENTRY; DELIVERY AND FORM

      The  Certificates  representing the Exchange Notes will be issued in fully
registered  form,  without  coupons and will be deposited with, or on behalf of,
the  Depositary,  and registered in the name of Cede & Co., as the  Depository's
nominee  in  the  form  of a  global  Exchange  Note  certificate  (the  "Global
Certificate") or will remain in the custody of the Trustee.

      Except as set forth below, the Global  Certificate may be transferred,  in
whole and not in part,  only by the Depositary to its nominee to such Depositary
or another  nominee of the  Depositary or by the  Depositary or its nominee to a
successor of the Depositary or a nominee of such successor.

      The Issuers  understand  that the  Depositary is a  limited-purpose  trust
company which was created to hold securities for its participating organizations
(the   "Participants")  and  to  facilitate  the  clearance  and  settlement  of
transactions  in  such  securities  between   Participants   through  electronic
book-entry  changes  in  accounts  of  its  Participants.  Participants  include
securities brokers and dealers (including the Initial Purchasers),  banks, trust
companies, clearing corporations and certain other organizations.  Access to the
Depository's  book-entry  system is also  available  to  others,  such as banks,
brokers,  dealers and trust companies that clear through or maintain a custodial
relationship  with a  Participant,  either  directly  or  indirectly  ("indirect
participants"). Persons who are not participants may beneficially own securities
held by the Depositary through Participants or indirect participants.

      Pursuant to procedures  established  by the Depositary (i) upon deposit of
the Global Certificate,  the Depositary will credit the accounts of Participants
with  portions  of the  principal  amount  of the  Global  Certificate  and (ii)
ownership of the Exchange  Notes will be shown on, and the transfer of ownership
thereof will be effected only  through,  records  maintained  by the  Depositary
(with  respect  to  the  interest  on  the   Depository's   participants),   the
Depository's Participants and the Depository's indirect participants.

      The laws of some jurisdictions  require that certain persons take physical
delivery in  definitive  form of  securities  that they own.  Consequently,  the
ability to transfer  interests in the Global Certificate will be limited to such
extent.

      So long as the nominee of the  Depositary is the  registered  owner of the
Global Certificate,  such nominee will be considered the sole owner or holder of
the Exchange  Notes for all  purposes  under the  Indenture.  Except as provided
below, the owners of interests in the Global Certificate will not be entitled to
have Exchange Notes  registered in their names,  will not receive or be entitled
to receive  physical  delivery of Exchange Notes in definitive form and will not
be considered the owners or holders  thereof under the  Indenture.  As a result,
the  ability  of a  person  having  a  beneficial  interest  in  Exchange  Notes
represented  by the Global  Certificate  to pledge  such  interest to persons or
entities that do not participate in the Depository's system or to otherwise take
actions in respect to such  interest  may be  affected by the lack of a physical
certificate evidencing such interest.

      Neither  the  Issuers,  the  Trustee  nor any  paying  agent will have any
responsibility  or  liability  for any  aspect  of the  records  relating  to or
payments  made  on  account  of  interests  in  the  Global  Certificate  or for
maintaining, supervising or reviewing any records relating to such interests.

      Principal and interest  payments on the Global  Certificate  registered in
the name of the  Depository's  nominee  will be made by the Issuers or through a
paying agent to the  Depository's  nominee as the registered owner of the Global
Certificate.  Under the terms of the Indenture, the Issuers and the Trustee will
treat the persons in whose names the Exchange Notes are registered as the owners
of such  Exchange  Notes for the purpose of receiving  payments of principal and
interest  on  such  Exchange  Notes  and  for  all  other  purposes  whatsoever.
Therefore,  neither the Issuers, the Trustee nor any paying agent has any direct
responsibility  or  liability  for the payment of  principal  or interest on the
Exchange Notes to owners of interests in the Global Certificate.  The Depositary
has  advised the Issuers  and the  Trustee  that its present  practice  is, upon
receipt of any payment of  principal  or  interest,  to credit  immediately  the
account of the  Participants  with  payments in amounts  proportionate  to their
respective  holdings in principal amount of interests in the Global  Certificate
as shown on the records of the Depositary. Payments by Participants and indirect
participants to owners of interests in the Global  Certificate  will be governed
by  standing  instructions  and  customary  practices,  as is now the case  with
securities  held for the accounts of customers in bearer form or  registered  in
"street name," and will be the  responsibility  of such participants or indirect
participants.

      If the  Depositary  is at any time  unwilling  or  unable to  continue  as
depositary and a successor  depositary is not appointed by the Issuers within 90
calendar days, the Issuers will issue  Exchange  Notes in  certificated  form in
exchange for the Global  Certificate.  In addition,  the Issuers may at any time
determine not to have the Exchange Notes  represented  by a Global  Certificate,
and, in such event,  will issue Exchange Notes in certificated  form in exchange
for the Global Certificate.  In either instance,  an owner of an interest in the
Global Certificate would be entitled to physical delivery of such Exchange Notes
in  certificated  form.  Exchange Notes so issued in  certificated  form will be
issued in  denominations  of $1,000 and integral  multiples  thereof and will be
issued in registered form only.

      Neither the  Issuers nor the Trustee  shall be liable for any delay by the
Depositary or its nominee in identifying  the  beneficial  owners or the related
Exchange  Notes,  and each such  person may  conclusively  rely on, and shall be
protected in relying on, instructions from the Depositary or its nominee for all
purposes  (including  with respect to the  registration  and  delivery,  and the
respective principal amounts, of the Exchange Notes to be issued).



<PAGE>


                              AVAILABLE INFORMATION

      The Issuers  have filed with the  Commission a  Registration  Statement on
Form  S-4  (the  "Exchange  Offer  Registration  Statement",  which  term  shall
encompass all amendments,  exhibits,  annexes and schedules thereto) pursuant to
the  Securities  Act and  the  rules  and  regulations  promulgated  thereunder,
covering the Exchange  Notes being  offered  hereby.  This  Prospectus  does not
contain  all the  information  set  forth  in the  Exchange  Offer  Registration
Statement.  For further information with respect to the Issuers and the Exchange
Offer,  reference  is  made  to  the  Exchange  Offer  Registration   Statement.
Statements made in this Prospectus as to the contents of any contract, agreement
or other document referred to are not necessarily complete. With respect to each
such  contract,  agreement or other document filed as an exhibit to the Exchange
Offer  Registration  Statement,  reference  is  made to the  exhibit  for a more
complete description of the document or matter involved, and each such statement
shall be deemed qualified in its entirety by such reference.  The Exchange Offer
Registration  Statement,  including the exhibits  thereto,  can be inspected and
copied at the public reference  facilities  maintained by the Commission at Room
1024,  450 Fifth  Street,  N.W.,  Washington,  D.C.  20549,  and at the Regional
Offices of the Commission at 7 World Trade Center,  New York, New York 10048 and
at Northwestern  Atrium Center,  500 West Madison Street,  Suite 1400,  Chicago,
Illinois  60661.  Copies  of such  materials  can be  obtained  from the  Public
Reference Section of the Commission at 450 Fifth Street, N.W., Washington,  D.C.
20549, at prescribed rates.

      The Company is subject to the informational  reporting requirements of the
Securities  Exchange  Act of 1934,  as  amended  (the  "Exchange  Act"),  and in
accordance therewith files reports,  proxy and information  statements and other
information  with the  Commission.  Such material  filed by the Company with the
Commission  may be inspected by anyone  without  charge at the Public  Reference
Section of the Commission at Room 1024, Judiciary Plaza, 450 Fifth Street, N.W.,
Washington, D.C. 20549, and at the regional offices of the Commission located at
Northwestern  Atrium  Center,  500 West  Madison  Street,  Suite 1400,  Chicago,
Illinois  60661 and 7 World Trade Center,  Suite 1300, New York, New York 10048.
Copies of such material may also be obtained at the Public Reference  Section of
the  Commission  at  Room  1024,   Judiciary  Plaza,  450  Fifth  Street,  N.W.,
Washington, D.C. 20549, upon payment of prescribed fees. The Common Stock of the
Company is quoted on The Nasdaq National Market under the symbol "AXAS" and such
reports,  proxy and information  statements and other information concerning the
Company are available at the offices of The Nasdaq  National  Market  located at
1735 K Street, N.W., Washington, D.C. 20006.

      In the event that the  Company  ceases to be subject to the  informational
reporting  requirements  of the Exchange  Act, the Issuers have agreed that,  so
long as the Series A Notes or the Exchange Notes remain  outstanding,  they will
file with the  Commission and distribute to holders of the Series A Notes or the
Exchange Notes, as applicable,  copies of the financial  information  that would
have  been  contained  in  annual  reports  and  quarterly  reports,   including
management's  discussion  and  analysis of  financial  condition  and results of
operations,  that  the  Company  would  have  been  required  to file  with  the
Commission  pursuant to the  Exchange  Act.  Such  financial  information  shall
include annual reports containing  consolidated  financial  statements and notes
thereto,  together with an opinion  thereon  expressed by an independent  public
accounting firm, as well as quarterly  reports  containing  unaudited  condensed
consolidated  financial  statements  for the first three quarters of each fiscal
year.  The  Company  will  also  make  such  reports  available  to  prospective
purchasers  of  the  Series  A  Notes  or the  Exchange  Notes,  as  applicable,
securities  analysts and  broker-dealers  upon their request.  In addition,  the
Issuers  have  agreed  that  for so long  as any of the  Series  A Notes  remain
outstanding they will make available to any prospective  purchaser of the Series
A Notes or beneficial  owner of the Series A Notes in  connection  with any sale
thereof the information  required by Rule  144A(d)(4)  under the Securities Act,
until such time as the  Issuers  have  either  exchanged  the Series A Notes for
securities  identical in all material  respects which have been registered under
the  Securities  Act or until such time as the holders  thereof have disposed of
such Series A Notes pursuant to an effective registration statement filed by the
Issuers.

           ENFORCEABILITY OF CIVIL LIABILITIES AGAINST FOREIGN PERSONS

      Canadian  Abraxas is a Canadian  corporation,  certain of its officers and
directors  may be residents of various  jurisdictions  outside the United States
and its Canadian counsel,  Burnet,  Duckworth & Palmer, are residents of Canada.
All or a  substantial  portion of the  assets of  Canadian  Abraxas  and of such
persons  may be  located  outside  the  United  States.  As a result,  it may be
difficult  for investors to effect  service of process  within the United States
upon such  persons or to enforce  judgments  obtained  against  such  persons in
United States courts and predicated upon the civil  liability  provisions of the
Securities Act. Notwithstanding the foregoing,  Canadian Abraxas has irrevocably
agreed  that it may be served  with  process  with  respect to actions  based on
offers and sales of securities made hereby in the United States by serving Chris
E. Williford, c/o Abraxas Petroleum Corporation, 500 North Loop 1604 East, Suite
100, San Antonio,  Texas 78232,  Canadian Abraxas' United States agent appointed
for that  purpose.  Canadian  Abraxas has been advised by its Canadian  counsel,
Burnet,  Duckworth  & Palmer,  that there is doubt as to the  enforceability  in
Canada against  Canadian  Abraxas or against any of its  directors,  controlling
persons,  officers or experts who are not  residents  of the United  States,  in
original  actions for  enforcement  of judgments  of United  States  courts,  of
liabilities predicated solely upon United States federal securities laws.

                                  LEGAL MATTERS

      Certain legal matters related to the Notes offered hereby are being passed
upon for the Company by Cox & Smith  Incorporated,  San  Antonio,  Texas and for
Canadian  Abraxas by Burnet,  Duckworth and Palmer,  Barristers and  Solicitors,
Calgary, Alberta.

                                     EXPERTS

   
      The  consolidated  financial  statements of the Company as of December 31,
1995 and 1994 and for each of the three years in the period  ended  December 31,
1995,  the  statements  of Combined Oil and Gas  Revenues  and Direct  Operating
Expenses of Certain  Overriding Royalty Interests in the Portilla Field Acquired
by Abraxas Petroleum  Corporation for the years ended December 31, 1994 and 1995
and the balance  sheet of Canadian  Abraxas  Petroleum  Limited at September 30,
1996  included  in this  Prospectus  and the  Registration  Statement  have been
audited  by  Ernst & Young  LLP,  independent  auditors,  as set  forth in their
reports thereon appearing  elsewhere  herein,  and are included in reliance upon
such reports given upon the authority of such firm as experts in accounting  and
auditing.
    

      The  Statements  of  Revenues  and Direct  Operating  Expenses  of Enserch
Exploration,  Inc.'s  Wamsutter  Area Package for the three years ended December
31,  1995,  1994 and  1993  included  in this  Prospectus  and the  Registration
Statement,  have been audited by Deloitte & Touche LLP, independent auditors, as
stated in their report appearing  elsewhere herein, and are included in reliance
upon such report given upon the  authority of such firm as experts in accounting
and auditing.

   
      The financial  statements of CGGS Canadian Gas Gathering Systems,  Inc. as
of October 31, 1995 and 1994 and for the years ended October 31, 1995,  1994 and
1993 have been  included  herein and in the  Registration  Statement in reliance
upon the report of KPMG, Chartered Accountants,  appearing elsewhere herein, and
upon the authority of said firm as experts in accounting and auditing.
    

      The historical  reserve  information  prepared by DeGolyer and MacNaughton
and Sproule  Associates Limited included in this Prospectus and the Registration
Statement has been included  herein in reliance upon the authority of such firms
as experts with respect to matters contained in such reserve reports.



<PAGE>


                                GLOSSARY OF TERMS

      Unless  otherwise  indicated in this  Prospectus,  natural gas volumes are
stated at the legal pressure base of the State or area in which the reserves are
located at 60 degrees  Fahrenheit.  Natural gas equivalents are determined using
the ratio of six Mcf of natural  gas to one barrel of crude oil,  condensate  or
NGLs.

      The following  definitions shall apply to the technical terms used in this
Prospectus.

      "Bbl" means barrel or barrels.

      "Bblpd" means barrels per day.

      "Bcf" means billion cubic feet.

      "BOE" means barrel of crude oil equivalent.

      "DD&A" means depletion, depreciation and amortization.

      "Developed  acreage"  means  acreage  which  consists  of acres  spaced or
assignable to productive wells.

      "Development  well" means a well drilled within the proved area of a crude
oil or natural gas reservoir to the depth of  stratigraphic  horizon (rock layer
or  formation)  known to be  productive  for the purpose of extraction of proved
crude oil or natural gas reserves.

      "Dry hole" means an exploratory or development  well found to be incapable
of  producing  either  crude  oil or gas in  sufficient  quantities  to  justify
completion as a crude oil or natural gas well.

      "EBITDA" means earnings from  continuing  operations  before income taxes,
interest expense, DD&A and other non-cash charges.

      "EBITDA Margin" means EBITDA divided by total operating revenue.

      "Exploratory  well" means a well drilled to find and produce  crude oil or
natural gas in an unproved  area, to find a new reservoir in a field  previously
found to be  producing  crude oil or  natural  gas in another  reservoir,  or to
extend a known reservoir.

      "Finding  cost",  expressed in dollars per BOE, is  calculated by dividing
the amount of total exploration and development capital expenditures  (excluding
any  amortization  with  respect to  deferred  financing  fees) by the amount of
proved  reserves  added during the same period  (including  the effect on proved
reserves of reserve revisions).

      "G&A" means general and administrative.

      "Gross"  natural gas and crude oil wells or "gross"  wells or acres is the
number of wells or acres in which the Company has an interest.

      "LOE" means lease operating expenses and production taxes.

      "MBbl" means thousand barrels.

      "MBOE" means thousand barrels of crude oil equivalent.

      "Mcf" means thousand cubic feet.

      "Mcfpd" means thousand cubic feet per day.

      "MMBbls" means million barrels of crude oil.

      "MMBOE" means million barrels of crude oil equivalent.

      "MMBTU" means million British Thermal Units.

      "MMcf" means million cubic feet.

      "MMcfpd" means million cubic feet per day.

      "Net"  natural  gas and crude oil wells or "net" acres are  determined  by
multiplying  "gross"  wells or acres by the Company's  working  interest in such
wells or acres.

      "NGL" means natural gas liquid.

      "PV-10" means  estimated  future net revenue,  discounted at a rate of 10%
per  annum,  before  income  taxes  and  with no  price  or cost  escalation  or
de-escalation  in accordance with  guidelines  promulgated by the Securities and
Exchange Commission.

      "Production costs" means lease operating expenses and taxes on natural gas
and crude oil production.

      "Productive wells" mean producing wells and wells capable of production.

      "Proved developed  reserves"  includes only those proved reserves expected
to be recovered from existing  completion  intervals in existing wells and those
reserves that exist behind the casing of existing  wells when the cost of making
such reserves  available for production is relatively small compared to the cost
of a new well.

      "Proved   reserves"  or  "reserves"  means  natural  gas  and  crude  oil,
condensate and NGLs on a net revenue  interest  basis,  found to be commercially
recoverable.

      "Proved  undeveloped  reserves" includes those proved reserves expected to
be recovered from new wells on undrilled  acreage or from existing wells where a
relatively major expenditure is required for recompletion.

      "Service  Well" is a well used for water  injection in secondary  recovery
projects or for the disposal of produced water.

      "Undeveloped  acreage"  means  leased  acres on which  wells have not been
drilled or completed to a point that would permit the  production  of commercial
quantities of crude oil and natural gas,  regardless whether or not such acreage
contains proved reserves.


<PAGE>


                                       F-9
                          INDEX TO FINANCIAL STATEMENTS

                                                                     Page
Abraxas Petroleum Corporation and Subsidiaries

Report of Independent Auditors                                       F-2
Consolidated Balance Sheets at December 31, 1994 and 1995
  and September 30, 1996 (Unaudited)                                 F-3
Consolidated Statements of Operations for the years
  ended December 31, 1993, 1994, and 1995 and for the nine
  months  ended  September  30,  1995 and 1996(Unaudited)            F-5
Consolidated  Statements of  Shareholders'  Equity for the years
ended December 31, 1993, 1994, and 1995 and for the nine months
 ended September 30, 1996 (Unaudited)                                F-7
Consolidated  Statements  of Cash Flows for the years ended 
 December 31, 1993, 1994, and 1995 and for the nine  months
 ended  September  30,  1995 and 1996(Unaudited)                     F-9
Notes to Consolidated Financial Statements                           F-12
Supplemental Information Relating to Oil and Gas
 Producing Companies                                                 F-34

CGGS Canadian Gas Gathering Systems Inc.

Auditors' Report to the Directors                                    F-38
Balance Sheets at October 31, 1994 and 1995
  and October 31, 1996 (Unaudited)                                   F-39
Statements of Earnings (Loss) and Deficit for the years
 ended October 31, 1993, 1994, and 1995 and for the year 
 ended  October  31,  1996 (Unaudited)                               F-40
Statements  of Changes in  Financial  Position  for the
 years ended  October 31, 1993, 1994, and 1995 and for the
 year ended October 31, 1996 (Unaudited)                             F-41
Notes to Financial Statements                                        F-42

Enserch Exploration, Inc.'s Wamsutter Area Package

Independent Auditors' Report                                         F-49
Statements of Revenues and Direct Operating Expenses for
 the years ended December 31, 1993, 1994, and 1995 and for the
 nine months ended September 30, 1995 and 1996 (Unaudited)           F-50
Notes to Statements of Revenues and Direct Operating Expenses        F-51

Certain Overriding Royalty Interests in the Portilla Field
 Acquired by  Abraxas Petroleum Corporation

Report of Independent Auditors                                       F-53
Statements of Combined Oil and Gas Revenues and Direct
 Operating Expenses for the years ended December 31, 1994
 and 1995 and for the nine months ended September 30, 1995
 and 1996  (Unaudited)                                               F-54
Notes to Statements of Combined Oil and Gas Revenues and
  Direct Operating Expenses                                          F-55

Canadian Abraxas Petroleum Limited

Report of Independent Auditors                                       F-59
Balance Sheet at September 30, 1996                                  F-60
Note to Balance Sheet                                                F-61


                                      F-1
<PAGE>










                         Report of Independent Auditors



The Board of Directors and Shareholders
Abraxas Petroleum Corporation

      We have audited the  accompanying  consolidated  balance sheets of Abraxas
Petroleum Corporation and Subsidiaries as of December 31, 1994 and 1995, and the
related consolidated  statements of operations,  shareholders'  equity, and cash
flows for each of the three years in the period ended  December 31, 1995.  These
financial  statements are the  responsibility of the Company's  management.  Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

      We conducted our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

      In our opinion, the financial statements referred to above present fairly,
in all  material  respects,  the  consolidated  financial  position  of  Abraxas
Petroleum  Corporation  and  Subsidiaries at December 31, 1994 and 1995, and the
consolidated  results of their  operations  and their cash flows for each of the
three years in the period ended December 31, 1995, in conformity  with generally
accepted accounting principles.



                                          ERNST & YOUNG LLP

San Antonio, Texas
March 19, 1996, except for paragraph 2
  of Note 16, as to which the date is March 21, 1996


                                      F-2
<PAGE>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                           CONSOLIDATED BALANCE SHEETS


                                                   ASSETS

                                              December 31         September 30
                                       ---------------------------
                                           1994          1995         1996
                                       ------------- ------------- -------------
                                                                   (Unaudited)
Current assets:
  Cash .............................   $     5,297  $  4,249,767   $  9,992,902
  Accounts receivable, less
   allowance for doubtful accounts of
   $44,369, $35,900, and $35,900 at
   December 31, 1994 and 1995, and
   September 30, 1996, respectively:
     Joint owners ..................     1,260,090     1,334,873        593,481
     Oil and gas production sales ..     2,206,037     2,945,681      2,748,505
     Affiliates, officers, and              66,497        53,224         59,463
      shareholders .................
     Other .........................        54,646        60,367        563,081
                                        ----------     ---------     ----------
                                         3,587,270     4,394,145      3,964,530

  Equipment inventory ..............        51,309        80,070        142,023
  Other current assets .............       126,664       124,820        138,986
                                        ----------     ---------     ----------
   Total current assets ..............   3,770,540     8,848,802     14,238,441

Property and equipment:
  Oil and gas properties, including
   $8,000,000 excluded from the
   amortization base at
   September 30, 1996 and gas
   processing plants, less
   accumulated depreciation,
   depletion, and amortization of       
   $24,338,518, $29,651,521, and
   $37,601,185 at December 31, 1994
   and 1995, and September 30,
   1996, respectively ..............    70,178,563    74,475,683    111,103,581
  Other property and equipment:
   Land ............................       152,536       139,466        139,466
   Equipment .......................       552,906       692,508        969,835
   Leasehold improvements ..........             -        37,430        129,398
   Less accumulated depreciation          
     and amortization ..............      (146,158)     (266,686)      (366,586)
                                       ------------   -----------   ------------
Net property and equipment .........    70,737,847    75,078,401    111,975,694
Investments in and advances to oil
  and gas partnership...............             -             -      2,396,992
Deferred financing fees, net of
  accumulated amortization of
  $75,000, $289,231, and
  $850,650 at December 31, 1994 and        
  1995,  and September 30, 1996,
  respectively .....................       381,284       353,514        970,807
Restricted cash ....................       130,000       134,419         91,160
Marketable securities ..............       326,000       326,000             -
Other assets .......................        15,188       326,222        766,994
                                       ------------- -------------- ------------
  Total assets .......................   $75,360,859   $85,067,358 $130,440,088
                                       ============= ============= =============

                             See accompanying notes.

                                      F-3
<PAGE>
<TABLE>
<CAPTION>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                     CONSOLIDATED BALANCE SHEETS (CONTINUED)


                      LIABILITIES AND SHAREHOLDERS' EQUITY

                                              December 31         September 30
                                       ---------------------------
                                           1994          1995         1996
                                       ------------- --------------------------
                                                                  (Unaudited)
Current liabilities:
<S>                                    <C>           <C>          <C>          
  Accounts payable .................   $ 3,813,272   $ 3,928,824  $   4,694,034
  Oil and gas production payable ...       867,756     1,787,152      1,414,212
  Accrued interest .................       336,268       362,750            -
  Other accrued expenses ...........       116,806        46,207        356,263
  Dividends payable on preferred            
   stock ...........................        91,462        91,482         91,482
  Liabilities related to                   
   discontinued operations .........       150,000             -            -
                                       -----------   -----------  ------------- 
   Total current liabilities .........   5,375,564     6,216,415      6,555,991
Long-term debt:
  Financing agreements .............    40,906,652    41,556,651     85,000,000
  Principal shareholder ............       328,259             -            -
                                       -----------   -----------  --------------
                                        41,234,911    41,556,651     85,000,000

Other long-term obligations ........        61,696        44,737        123,538
Deferred income taxes ..............       186,749       186,749        186,749
Minority interest in foreign                
  subsidiary .......................             -             -      2,153,223

Commitments and contingencies

Shareholders' equity:
  Preferred stock 8%, authorized
   1,000,000 shares; issued and
   outstanding 45,741 shares at
   December 31, 1994 and 1995, and       
   at September 30, 1996 ...........           457          457             457
  Common stock, par value $.01 per
   share - authorized  50,000,000 shares;
   issued  and outstanding 4,461,890,
   5,799,762, and 5,804,812 shares at
   December 31, 1994 and 1995, and
   September 30, 1996, respectively ..      44,620       57,999          58,050
  Additional paid-in capital .......    36,216,694   50,914,078      50,920,154
  Unrealized holding loss on              
   securities ......................      (244,000)    (244,000)             -
  Retained deficit .................   (12,089,475) (13,663,903)    (14,184,400)
  Treasury stock, at cost, -0- ,
   2,571, and 70,711 shares at
   December 31, 1994 and 1995, and           
   September 30, 1996, respectively              -       (1,825)       (374,079)
  Foreign currency translation                  
   adjustment ........................           -           -              405
                                       ------------  -----------   -------------
Total shareholders' equity .........    28,501,939    37,062,806     36,420,587
                                       ------------  -----------   -------------
   Total liabilities and shareholders'
     equity                            $75,360,859   $85,067,358   $130,440,088
                                       ============  ===========   =============
</TABLE>




                             See accompanying notes.

                                      F-4
<PAGE>
<TABLE>
<CAPTION>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF OPERATIONS


                                                                                                  Nine Months Ended
                                                      Year Ended December 31                       September 30
                                            --------------------------------------------    ----------------------------
                                                1993         1994               1995            1995           1996
                                            ------------ --------------    -------------    ------------    ------------
                                                                                                     (Unaudited)
Revenue:
<S>                                        <C>             <C>             <C>             <C>             <C>         
  Oil and gas production sales .........   $  7,274,676    $ 11,114,028    $ 13,659,556    $  9,794,667    $ 11,785,848
  Rig revenues .........................        118,081         160,605         108,400          92,250         106,000
  Other ................................        101,580          73,882          48,559          42,257          17,210
                                              ---------    ------------    ------------    ------------    ------------
                                              7,494,337      11,348,515      13,816,515       9,929,174      11,909,058

Operating costs and expenses:
  Lease operating and production
   taxes ...............................      2,895,651       3,693,085       4,333,240       3,182,567       3,295,659
  Depreciation, depletion, and
   amortization ........................      2,373,400       3,790,023       5,433,531       3,540,882       4,145,047
  Abandoned prospects ..................         22,343            --              --              --              --
  Rig operations .......................         68,118         132,522         125,353          94,978         112,581
  General and  administrative ..........        509,511         810,315       1,041,740         768,575       1,250,458
  Provision for losses on
   accounts receivable .................         13,000            --              --              --              --
  Hedging loss .........................           --              --              --              --           510,767
                                           ------------    ------------    ------------    ------------    ------------
                                              5,882,023       8,425,945      10,933,864       7,587,002       9,314,512
                                           ------------    ------------    ------------    ------------    ------------
                                              1,612,314       2,922,570       2,882,651       2,342,172       2,594,546
Other (income)expense:
  Interest income ......................        (38,917)        (16,411)        (33,749)         (8,392)       (155,674)
  Amortization of deferred
   financing  fee ......................        649,000         400,000         214,231         120,000         192,419
  Amortization .........................        100,000          66,667            --              --              --
  Interest expense .....................      2,530,669       2,359,310       3,910,669       2,915,260       2,141,816
  Loss (recovery)on marketable
   securities ..........................       (235,500)           --              --              --           235,197
                                           ------------    ------------    ------------    ------------    ------------
                                              3,005,252       2,809,566       4,091,151       3,026,868       2,413,758
                                           ------------    ------------    ------------    ------------    ------------ 
Income (loss) from  continuing
  operations before taxes and
  extraordinary  items .................     (1,392,938)        113,004      (1,208,500)       (684,696)        180,788
Deferred income tax expense ............       (186,749)           --              --              --              --
Minority  interest in income of
  consolidated foreign  subsidiary .....           --              --              --              --            57,839
                                           ------------    ------------    ------------    ------------    ------------
Income (loss) from continuing
  operations before extraordinary  items     (1,579,687)        113,004      (1,208,500)       (684,696)        122,949

</TABLE>

                                      F-5
<PAGE>
<TABLE>
<CAPTION>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF OPERATIONS


                                                                                                  Nine Months Ended
                                                      Year Ended December 31                       September 30
                                            --------------------------------------------    ----------------------------
                                                1993         1994               1995            1995           1996
                                            ------------ --------------    -------------    ------------  ------------
                                                                                                   (Unaudited)
<S>                                       <C>             <C>               <C>              <C>            <C>                     
Discontinued operations:
  Loss from operations of discontinued
    coal  properties .................    $   (279,673)   $  (347,596)      $      --        $      --      $      --
  Loss on disposal of discontinued  
    coal properties ..................            --         (987,543)             --               --             --
                                          -------------   ------------      ------------     -----------    ------------
Loss from  discontinued operations ...        (279,673)    (1,335,139)             --               --             --
                                          -------------   ------------      ------------     -----------    ------------
Income (loss) before
  extraordinary  items ...............      (1,859,360)    (1,222,135)        (1,208,500)       (684,696)      122,949
Extraordinary items:
  Gain from partial extinguishment
   of debt ...........................       2,462,664           --                --               --             --
  Debt extinguishment costs ..........      (3,036,000)    (1,171,832)             --               --        (369,000)
                                          -------------   ------------      ------------     -----------    ------------
Net income (loss) ....................      (2,432,696)    (2,393,967)       (1,208,500)       (684,696)      (246,051)
    
Less dividend requirement on
  cumulative preferred  stock ........        (186,285)      (182,924)         (365,928)       (274,464)      (274,446)
                                          -------------   ------------      ------------   -------------   ------------
Net income (loss) applicable
  to common  stock ...................     $(2,618,981)   $(2,576,891)      $(1,574,428)   $   (959,160)   $  (520,497)
                                          =============   ============      ============   =============   ============


Income (loss) per common share:
  Income (loss)from continuing operations  $     (.91)    $      (.02)      $     (.34)    $       (.21)   $      (.03)
  Discontinued operations                        (.14)           (.31)            -                 -              -
  Extraordinary items                            (.29)           (.27)            -                 -             (.06)
                                          -------------   -------------     ------------   -------------   ------------
Net loss per common share                  $    (1.34)    $       (.60)     $     (.34)    $       (.21)   $      (.09)
                                          =============   =============     ============   =============   ============
           

Weighted average shares outstanding           1,947,256      4,309,878        4,635,412       4,456,462      5,804,145
                                          =============   ============      ============   =============   ============

</TABLE>



                             See accompanying notes.

                                      F-6
<PAGE>

<TABLE>
<CAPTION>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES


                 CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY


                                                                                                                                    
                                        Preferred Stock           Common Stock                   Treasury Stock                     
                                   ---------------------------------------------------     -----------------------                  
                                    Shares      Amount          Shares       Amount            Shares      Amount             
                                                                                                                              
                                   -------------------------------------------------------------------------------

<S>                                 <C>      <C>               <C>        <C>                                      
Balance at .................        24,910   $  2,491,000      1,362,600  $     13,626          --            --   
  January 1, 1993
  Issuance of common stock
    for acquisitions
    and compensation .......          --             --          154,394         1,543          --            --   
  Conversion of  preferred
    stock and related
    dividends in arrears
    into common stock ........     (24,910)    (2,491,000)       317,539         3,175          --            --       
  Issuance of
    common stock ...........          --             --        2,250,000        22,500          --            --   
  Options
    exercised ..............          --             --            1,250            13          --            --   
  Issuance of
    common stock for debt
    prepayment .............          --             --          116,666         1,167          --            --   
  Net loss for the year  ...          --             --             --            --            --            --   
                             -------------    ----------   -------------     ---------       ---------   ------------
Balance at
  December 31,  1993 .......          --             --        4,202,449        42,024          --            --   
  Issuance of common stock
    for compensation .......          --             --           10,033           101          --            --   
  Issuance of preferred
    stock for acquisition ..        45,741      4,574,100           --            --            --            --   
  Options and  warrants
    exercised ..............          --             --          249,408         2,495          --            --   
  Changes in unrealized
    holding loss
    on securities ..........          --             --             --            --            --            --   
  Dividend on preferred
    stock ..................          --             --             --            --            --            --   
  Net loss for the year ....          --             --             --            --            --            --   
                              -------------    ----------   -------------     ---------       ---------   ------------
Balance at
  December 31, 1994 ........        45,741      4,574,100      4,461,890        44,620          --            --   
  Issuance of  common stock
    for compensation .......          --             --            7,872            79          --            --   
  Issuance of common stock .          --             --        1,330,000        13,300          --            --   
  Treasury stock
    purchased, net .........          --             --             --            --           2,571        (1,825)
  Changes in preferred
    stock par value ........          --       (4,573,643)          --            --            --            --   
  Dividend on  preferred
    stock ..................          --             --             --            --            --            --   
  Net loss for the year ....          --             --             --            --            --            --   
                             -------------    ----------   -------------     ---------       ---------   ------------
Balance at
  December 31, 1995 ........        45,741            457      5,799,762        57,999         2,571        (1,825)
                               ------------  -------------    -----------       -------       ------        -------
</TABLE>

<PAGE>
<TABLE>
<CAPTION>

                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES


           CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (CONTINUED)

                                               Unrealized
                                 Additional      Holding                     Foreign 
                                  Paid-In         Loss         Retained      Currency 
                                  Capital          on          Deficit      Translation         Total
                                               Securities
                              -------------  -------------- -------------  ------------      -------------
<S>                           <C>            <C>            <C>            <C>                            
Balance at .................  $  5,874,383   $       --     $ (6,145,763)  $                  $  2,233,246
  January 1, 1993
  Issuance of
    common stock for
    acquisitions and
    compensation ...........       964,180          --             --              --             965,723
  Conversion of preferred
    stock and related
    dividends in arrears
    into common stock ......       (24,910)          --        (934,125)          --              --                --
  Issuance of
    common stock ...........    23,022,635          --             --              --          23,045,135
  Options  exercised .......         6,863          --             --              --               6,876
  Issuance of common stock
    for debt prepayment ....     1,323,833          --             --              --           1,325,000
  Net loss for the
    year ...................          --            --       (2,432,696)           --          (2,432,696)
                              -------------  -------------- -------------  ------------      -------------
Balance at
  December 31, 1993 ........    34,613,844          --       (9,512,584)           --          25,143,284
  Issuance of common stock
    for compensation .......       106,652          --             --              --             106,753
  Issuance of preferred
    stock for acquisition ..          --            --             --              --           4,574,100
  Options and  warrants
    exercised ..............     1,496,198          --             --              --           1,498,693
  Changes in unrealized
    holding loss
    on securities ..........          --        (244,000)          --              --            (244,000)
  Dividend on preferred
    stock ..................          --            --         (182,924)           --            (182,924)
  Net loss for the year ....          --            --       (2,393,967)           --          (2,393,967)
                              -------------  -------------- -------------  ------------      -------------
Balance at
  December 31, 1994 ........    36,216,694      (244,000)   (12,089,475)           --          28,501,939
  Issuance of common stock
    for compensation .......        73,936          --             --              --              74,015
  Issuance of
    common stock ...........    10,049,805          --             --              --          10,063,105
  Treasury stock
    purchased, net .........          --            --             --              --              (1,825)
  Changes in preferred
    stock par value ........     4,573,643          --             --              --                --
  Dividend on preferred
    stock ..................          --            --         (365,928)           --            (365,928)
  Net loss for the
    year ...................          --            --       (1,208,500)           --          (1,208,500)
                              -------------  -------------- -------------  ------------      -------------
Balance at
  December 31, 1995 ........    50,914,078      (244,000)   (13,663,903)           --          37,062,806
</TABLE>



<PAGE>
<TABLE>
<CAPTION>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

           CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (CONTINUED)


 
                                         Preferred Stock           Common Stock                   Treasury Stock                    
                                   ----------------------  -----------------------------     -----------------------                
                                    Shares      Amount          Shares       Amount            Shares      Amount             
                      
                                   ----------------------  -----------------------------     -----------------------
<S>                               <C>         <C>          <C>             <C>                <C>       <C>
  Issuance of
    common stock for
    compensation
      (Unaudited) ..                 --      $      --          5,050     $      51           --         $  --             
  Expenses paid related to
    private placement
    offering (Unaudited) ..          --             --             --             --             --         --   
  Treasury stock purchased, net
     (Unaudited) .                   --             --             --             --           68,140    (372,254)
  Dividend on  preferred
    stock (Unaudited) ..             --             --             --             --             --         --   
  Foreign currency
    translation adjustment
    (Unaudited) ..                   --             --             --             --             --         --   
  Changes in unrealized
    holding loss
    on securities                    --             --             --             --             --         --   
  Net income
    (loss) for the nine month
    period (Unaudited) ..            --             --             --             --             --         --   
                                  --------    ----------       ----------  -----------       ---------  ---------
Balance at
  September 30, 1996 (Unaudited)   45,741    $      457        5,804,812   $ 58,050            70,711   $(374,079) 
                                  ========    ===========      ==========   ==========       =========  ==========
</TABLE>

<PAGE>

<TABLE>
<CAPTION>

                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

           CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (CONTINUED)

                                               Unrealized
                                 Additional      Holding                     Foreign 
                                  Paid-In         Loss         Retained      Currency 
                                  Capital          on          Deficit      Translation         Total
                                               Securities
                              -------------  -------------- -------------  ------------      -------------
<S>                           <C>              <C>           <C>               <C>          <C>               
  Issuance of
    common stock for
    compensation (Unaudited) $    42,829           --            --            --           $ 42,880   
  Expenses paid related to
    private placement
    offering (Unaudited) .       (36,753)          --            --            --            (36,753)
  Treasury stock purchased,
    net (Unaudited) .              --              --            --            --           (372,254)
  Dividend on preferred
    stock (Unaudited) ..           --              --         (274,446)        --           (274,446)
  Foreign currency
    translation adjustment
    (Unaudited) ..                 --              --             --           405               405
  Changes in unrealized
    holding loss
    on securities                  --           244,000           --           --            244,000
  Net income (loss) for the
    nine month period
    (Unaudited) ..                 --              --         (246,051)         --           (246,051)
                            -------------  -------------- -------------  ------------      -----------                              
Balance at
  September 30,
  1996 (Unaudited)          $  50,920,154          --      (14,184,400)         405       $36,420,587        
                            =============  ============== =============  ============      ===========
</TABLE>


                                              See accompanying notes.

<PAGE>

<TABLE>
<CAPTION>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                      CONSOLIDATED STATEMENTS OF CASH FLOWS


                                                                                     Nine Months Ended
                                                    Year Ended December 31             September 30
                                      ----------------------------------------- --------------------------
                                          1993         1994           1995         1995            1996
                                      ------------- ------------ -------------- -----------   ------------
                                                                                       (Unaudited)
Operating Activities
<S>                                   <C>           <C>           <C>           <C>           <C>         
Net  income (loss) .................  $(2,432,696)  $(2,393,967)  $(1,208,500)  $  (684,696)  $  (246,051)
Adjustments to reconcile net loss to
 net cash provided by operating
 activities:
   Minority  interest in income
     of foreign  subsidiary ........         --            --            --            --          57,839
   Abandoned prospects .............       22,343          --            --            --            --
   Loss on disposal of discontinued
     operations ....................         --         987,543          --            --            --
   Depreciation, depletion, and
     amortization ..................    2,373,400     3,790,023     5,433,531     3,540,882     4,145,047
   Amortization of deferred
     financing  fees ...............      649,000       400,000       214,231       120,000       192,419
   Issuance of common stock ........         --            --            --          55,512          --
   Amortization ....................      100,000        66,667          --            --            --
   Provision for deferred income
     taxes .........................      186,749          --            --            --            --
   (Recovery) on marketable
     securities ....................     (235,500)         --            --            --            --
   Provision for losses on
     accounts receivable ...........       13,000          --            --            --            --
   Net loss from debt
     restructuring .................      573,336     1,171,832          --            --         369,000
   Changes in operating assets and
    liabilities:
    (Increase) decrease in accounts
      receivable ...................   (1,898,220)     (814,053)     (806,875)   (1,892,866)      429,615
    (Increase) decrease in equipment
      inventory ....................      170,030        (9,208)      (28,761)      (16,872)      (61,953)
    (Increase) decrease in other
      assets .......................       55,902       (73,912)        1,831      (127,947)     (340,166)
    Decrease in notes receivable ...       38,484          --            --            --            --
    (Decrease)increase in
      accounts payable, accrued
      expenses, and  dividends
      payable ......................    1,053,000     1,274,702       (78,545)      107,469       712,516
     Decrease in accounts payable
      to affiliates ................      (63,323)      (42,839)         --            --            --
     Decrease in advances on
      drilling in progress .........     (242,823)         --            --            --            --
     Increase (decrease) in oil
      and gas production payable ...      301,952       (62,493)      919,396       325,992      (372,940)
                                      ------------   -----------   -----------   ----------     ----------
Net cash  provided by operating
  activities .......................      664,634     4,294,295     4,446,308     1,427,474     4,885,326
</TABLE>

                                      F-10
<PAGE>
<TABLE>
<CAPTION>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)


                                                                                        Nine Months Ended
                                                 Year Ended December 31                   September 30
                                     -------------------------------------------  ----------------------------
                                           1993         1994           1995           1995          1996
                                     -------------  ------------   -------------  -------------  -------------
                                                                                               (Unaudited)
<S>                                  <C>            <C>            <C>            <C>            <C>          
Investing Activities
Development of oil and gas
  properties ......................  $ (5,166,747)  $ (7,150,943)  $(11,398,088)  $ (8,934,853)  $(10,016,286)
 Purchase of oil and gas
  producing  properties ...........   (14,393,911)   (28,900,000)      (635,435)      (153,139)   (46,430,993)
Purchase of gas processing
  plants and  equipment ...........    (3,172,430)      (123,072)       (83,436)       (45,843)      (123,532)
Proceeds from  sale of oil
  and gas properties and
  equipment inventory .............       767,812         69,717      2,556,491      2,724,001     16,794,137
Purchase of interest in
  real estate partnership .........          --             --         (311,021)          --             --
Purchase of equipment .............      (540,515)      (158,268)      (139,602)       (89,252)      (369,295)
  Assets of acquired companies,
  net of cash .....................          --             --             --             --         (645,001)
Investment in  and advances
  to oil and  gas  partnership ....          --             --             --             --       (2,396,992)
Purchase of interest in real estate
  partnership .....................          --             --             --             --          (27,810)
Minority interest related to assets
  acquired of foreign subsidiary ..          --             --             --             --        2,095,384
Acquisition  costs allocated to
  deferred financing fees .........    (2,380,000)          --             --             --             --
Purchases of unproved oil and gas
  prospects,  net .................          --           (4,786)          --             --             --
Development of coal properties ....       (46,017)          --             --             --             --
(Purchase) sale of marketable
  securities ......................      (300,000)          --             --             --             --
Sale of common  stock in
  Castle  Minerals ................          --          371,000           --             --             --
                                      ------------   ------------   ------------   ------------    ------------
Net cash (used  in) provided
  by investing  activities ........   (25,231,808)   (35,896,352)   (10,011,091)    (6,499,086)    (41,120,388)

</TABLE>

                                      F-11
<PAGE>
<TABLE>
<CAPTION>


                                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                                CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)


                                                                                               Nine Months Ended
                                                    Year Ended December 31                       September 30
                                      ---------------------------------------------   ------------------------------
                                           1993           1994             1995            1995             1996
                                      -------------   ------------    -------------   -------------    -------------
                                                                                               (Unaudited)
<S>                                   <C>             <C>             <C>             <C>             <C>          
Financing  Activities
Preferred stock dividends .........   $       --      $    (91,462)   $   (365,928)   $   (274,464)   $   (274,464)
Issuance of  common stock,
  net of  expenses ................     23,052,011       1,498,693      10,063,105            --            30,313
Purchase of treasury
  stock, net ......................           --              --            (1,825)           --          (372,254)
Proceeds from  long-term
  borrowings ......................     20,631,793      40,906,652       5,950,000       2,750,000      90,400,000
Proceeds from short-term
  borrowings ......................           --              --              --         3,000,000            --
Payments on long-term
  borrowings ......................    (17,236,327)    (12,658,997)     (5,645,219)        (10,552)    (46,956,650)
Loan  origination
  fees ............................           --          (451,116)       (186,461)       (171,996)       (970,807)
Increase in ong-term
  liabilities .....................           --              --              --              --            78,800
                                      ------------    ------------    ------------    ------------    -------------
Net cash  provided by
  (used in)  financing
  activities ......................     26,447,477      29,203,770       9,813,672       5,292,988      41,934,938
                                      ------------    ------------    ------------    ------------    -------------
Increase  (decrease) in
  cash ............................      1,880,303      (2,398,287)      4,248,889         221,376       5,699,876
Cash at beginning of
  year ............................        653,281       2,533,584         135,297         135,297       4,384,186
                                      ------------    ------------    ------------    ------------    -------------
Cash at end of  year,
  including  restricted
  cash ............................   $  2,533,584    $    135,297    $  4,384,186    $    356,673    $ 10,084,062
                                      ============    ============    ============    ============    =============

Supplemental Disclosures
Supplemental disclosures of cash
 flow information:
   Interest paid .................   $  2,567,785    $  2,150,425    $  3,884,187    $  2,953,296    $  2,141,816
                                     ============    ============    ============    ============    =============

Supplemental schedule of noncash
 investing and financing activities:
   Accrual of preferred  dividends   $       --      $       --      $       --      $     91,482    $     91,482
                                     ============    ============    ============    ============    ============= 
   Exchange of common stock for
    acquisitions and compensation.   $    965,723    $    106,753    $     74,015    $     55,512    $     42,880
                                     ============    ============    ============    ============    =============
   Exchange of treasury stock for
    noncompete agreement ........   $       --      $       --      $       --      $     70,625    $       --
                                    ============    ============    ============    ============    =============

   Exchange of preferred stock in
    exchange for oil  and gas
    producing properties .........  $       --      $  4,574,100    $       --      $       --      $       --
                                    ============    ============    ============    ============    =============
   Issuance of subsidiary
    preferred stock in
     extinguishment of subsidiary
     debt .......................   $    840,000    $       --      $       --      $       --      $       --
                                    ============    ============    ============    ============    =============
   Conversion of preferred stock
    and related dividend in
    arrears into common stock ...   $  3,425,125    $       --      $       --      $       --      $       --
                                    ============    ============    ============    ============    =============
</TABLE>

                             See accompanying notes.

                                      F-12
<PAGE>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                        December 31, 1993, 1994, and 1995
          (Information as to September 30, 1996 and for the Nine Months
                 Ended September 30, 1995 and 1996 is Unaudited)


1.  Organization and Significant Accounting Policies

Nature of Operations

      Abraxas   Petroleum   Corporation  (the  "Company"  or  "Abraxas")  is  an
independent  energy company engaged in the exploration for and the  acquisition,
development,  and  production of crude oil and natural gas  primarily  along the
Texas Gulf Coast and in the  Permian  Basin of west Texas for sale into the U.S.
energy market. The consolidated financial statements include the accounts of the
Company  and  its  subsidiaries.   All  significant  intercompany  accounts  and
transactions have been eliminated in consolidation.

      The  accompanying  unaudited  interim  consolidated  financial  statements
include all adjustments,  consisting of only normal recurring adjustments, that,
in the opinion of  management,  are  necessary to present  fairly the  financial
position as of September 30, 1996 and the results of  operations  and cash flows
for the nine months ended  September 30, 1995 and 1996. The results for the nine
months ended September 30, 1996 are not necessarily indicative of the results to
be expected for the full year.  Information as of September 30, 1996 and for the
nine months ended  September 30, 1995 and 1996, as well as disclosures of events
occurring after March 1996 are unaudited.

Use of Estimates

      The  preparation  of financial  statements  in conformity  with  generally
accepted  accounting  principles  requires  management  to  make  estimates  and
assumptions  that  affect the  reported  amounts of assets and  liabilities  and
disclosure of  contingent  assets and  liabilities  at the date of the financial
statements  and the  reported  amounts  of  revenues  and  expenses  during  the
reporting period. Actual results could differ from those estimates.

Marketable Securities

      Management determines the appropriate  classification of marketable equity
and debt securities at the time of purchase and reevaluates  such designation as
of each  balance  sheet  date.  Debt  securities  that the  Company has both the
positive  intent and ability to hold to maturity are carried at amortized  cost.
Debt  securities  that the Company does not have the positive intent and ability
to hold to maturity and all  marketable  equity  securities  are  classified  as
available-for-sale  or trading  and carried at fair  value.  Unrealized  holding
gains and losses on securities classified as available-for-sale are carried as a
separate component of shareholders' equity.  Unrealized holding gains and losses
on securities classified as trading are reported in earnings.

Accounts Receivable

      Substantially all accounts  receivable relate to transactions  relating to
crude oil and natural  gas  activities  with  customers  or joint  owners in the
United States. The Company does not require collateral for its receivables.


                                      F-13
<PAGE>

Equipment Inventory

      Equipment  inventory  consists of casing and tubing, and is carried at the
lower of cost or market.

Oil and Gas Properties

      The Company  follows the full cost method of accounting  for crude oil and
natural  gas  properties.   Under  this  method,   all  costs   associated  with
acquisition,  exploration, and development are capitalized. The Company does not
capitalize   internal   costs,   except  for  the  expenses  of  its  geologist.
Depreciation,  depletion,  and amortization  (DD&A) of crude oil and natural gas
properties  are  based  on  the   unit-of-production   method.   If  unamortized
capitalized  costs are in excess of the discounted  present value of future cash
flows relating to proved reserves (ceiling), a charge to operations is recorded.
No gain or loss is recognized  upon sale or disposition of crude oil and natural
gas properties, except in unusual circumstances.

Other Property and Equipment

      Other   property  and  equipment  are  recorded  on  the  basis  of  cost.
Depreciation  is provided at amounts  calculated to amortize costs of the assets
over their estimated useful lives using the straight-line method. Major renewals
and  betterments  are  recorded  as  additions  to the  property  and  equipment
accounts.  Repairs  that do not improve or extend the useful lives of assets are
expensed.

Stock-Based Compensation

      The Company grants stock options for a fixed number of shares to employees
and  directors  with an exercise  price equal to the fair value of the shares at
the date of grant.  The Company  accounts for stock option  grants in accordance
with APB  Opinion  No. 25,  "Accounting  for Stock  Issued to  Employees,"  and,
accordingly, recognizes no compensation expense for the stock option grants.

Revenue Recognition and Major Customers

      The Company recognizes crude oil and natural gas revenue from its interest
in producing  wells as crude oil and natural gas is sold from those  wells.  For
the years ended  December 31, 1993,  1994,  and 1995, the Company sold 30%, 35%,
and 20%,  respectively,  of its  total  crude oil and  natural  gas sales to one
purchaser.  Additionally, for the years ended December 31, 1993, 1994, and 1995,
approximately 80%, 74%, and 64%, respectively,  of the Company's total crude oil
and natural gas sales were made to five purchasers.

Deferred Financing Fees

      Deferred  financing  fees are being  amortized on a level yield basis over
the term of the related debt.


                                      F-14
<PAGE>


Federal Income Taxes

      The Company  records  income taxes under  Financial  Accounting  Standards
Board Statement No. 109 using the liability method. Under this method,  deferred
tax assets and liabilities are determined based on differences between financial
reporting  and tax bases of assets and  liabilities  and are measured  using the
enacted  tax rates and laws that  will be in  effect  when the  differences  are
expected to reverse.

Net Income (Loss) Per Common Share

      Net income  (loss) per common  share is computed  by  dividing  net income
(loss)  (adjusted  for  dividends  on preferred  stock) by the weighted  average
number of shares of common  stock  outstanding  during the period.  The weighted
average  number of shares  includes  the number of shares that would be issuable
under the  Contingent  Value Rights  Agreement (CVR  Agreement),  if the current
market value of the Company's  common stock at year-end is less than a specified
target  price  (see Note 7).  Common  stock  equivalents,  including  any shares
issuable  under the CVR  Agreement,  are not  considered in the  computation  of
periods with a loss, as their effect is anti-dilutive.

Reclassifications

      Certain balances for 1993 and 1994 have been  reclassified for comparative
purposes.

2.  Acquisitions and Divestitures

Texas Gulf Coast Properties Acquisition

      In October 1995,  the Company  acquired  additional  working  interests in
certain  producing crude oil and natural gas properties in which the Company had
an  existing  working  interest  ownership.  The net  purchase  price to Abraxas
amounted to approximately $635,000.  Revenues and expenses have been included in
the consolidated financial statements since October 1, 1995.

West Texas Properties Acquisition

      In July 1994,  the Company  acquired  from  various  parties  interests in
certain  producing  crude oil and natural gas  properties  located in West Texas
(the West Texas  Properties).  The net  purchase  price to Abraxas  amounted  to
approximately $28,242,000 including closing costs of approximately $383,000. The
acquisition was accounted for as a purchase and the purchase price was allocated
to  crude  oil and  natural  gas  properties  based on the  fair  values  of the
properties  acquired.  The  transaction  was financed  principally by additional
borrowings  under the Company's  credit agreement with First Union National Bank
of North  Carolina  (First  Union),  referred to in Note 6. Revenue and expenses
from the West Texas Properties have been included in the consolidated  financial
statements since July 1, 1994.


                                      F-15
<PAGE>


Overriding Royalty Interest Acquisition

      In June  1994,  the  Company  acquired  from its  prior  secured  lenders,
Endowment  Energy  Partners,  L.P.  (EEP)  and  Endowment  Energy  Co-Investment
Partnership (EECIP), 80% of the previously granted overriding royalty interests.
The net purchase price of  approximately  $5,174,100  consisted of $600,000 cash
and 45,741 shares of the Company's Series B 8% nonvoting cumulative  convertible
preferred  stock with a par value of $100 per share  (Series B Preferred) at the
time of issuance.  The preferred  shares were recorded at $4,574,100 at the date
of the  acquisition.  In  November  1995,  the  Company  exchanged  the Series B
Preferred  for an equal number of shares of its Series 1995-B  Preferred  Stock,
par value $.01 per share,  with a liquidation  preference of $100 per share. The
preferred  shares are  convertible  into 508,182 shares of the Company's  common
stock.  The acquisition was accounted for as a purchase,  and the purchase price
was allocated to crude oil and natural gas  properties  based on the fair values
of the properties  acquired.  The cash portion of the  transaction  was financed
principally under the Company's credit agreement with First Union.  Revenues and
expenses  related to these  properties  have been  included in the  consolidated
financial statements since July 1, 1994.

Mobil Acquisition

      In April 1993,  the Company  acquired from Mobil  Producing  Texas and New
Mexico,  Inc. (Mobil)  interests in certain  producing crude oil and natural gas
properties  and  natural  gas  processing  plants  located in Texas (the  Sinton
Properties).  The net  purchase  price  to  Abraxas  amounted  to  approximately
$19,600,000  ($41,000,000  gross  purchase  price plus closing costs of $472,000
less the sale of 50% of the  Company's  interest to an unrelated  pension  trust
fund for  $21,000,000 and the  reimbursement  from Mobil for net production from
January 1, 1993 through the closing date).  The acquisition was accounted for as
a purchase  and the  purchase  price was  allocated to crude oil and natural gas
properties,  natural  gas  processing  plants  and other  assets  based  upon an
estimate of the fair values of the  properties  acquired  and the  reimbursement
from  Mobil  described  above.  The  transaction  was  financed  principally  by
additional  borrowings  under  the  Company's  financing  agreement  with  EECIP
referred to in Note 6. Under the financing  agreement,  the Company was required
to assign a 10% overriding  royalty interest in and to the future gross revenues
to be received  from the sales of crude oil and natural  gas  produced  from the
acquired properties.  Revenues and expenses from the Sinton Properties have been
included in the consolidated financial statements since April 1, 1993.

Gaelic Properties

      In January 1993, the Company  acquired from Gaelic Resources the remaining
75% working interest in the Alice Deep wells for $300,000 and 18,200,000  shares
of Gaelic  common stock for  $300,000.  The purchase  price of $600,000 cash was
financed through an increase in the financing  agreement with EEP.  Revenues and
expenses  of the  Gaelic  Properties  have  been  included  in the  consolidated
financial statements since January 1, 1993.


                                      F-16
<PAGE>


      The condensed  unaudited combined pro forma financial  information for the
periods  presented  assumes  the  purchases  of the West Texas  Properties,  the
Overriding Royalty Interest,  the Sinton  Properties,  and the Gaelic Properties
were  effective  as of  January  1,  1993.  The pro forma  information  does not
necessarily  represent what the actual consolidated  results would have been for
these periods and is not intended to be indicative of future results.

                                                  December 31
                                       ----------------------------------
                                             1993             1994
                                       ----------------- ----------------
                                                  (Unaudited)

   Revenues ........................      $14,903,431       $13,971,761
   Operating costs and expenses ....       16,893,094        14,157,384
                                       ----------------- ----------------
   Loss from continuing operations .      $(1,989,663)      $  (185,623)
                                       ================= ================

   Net loss ........................      $(3,029,421)      $(2,692,594)
                                       ================= ================

   Loss per common share:
     Continuing operations .........      $     (1.30)      $      (.13)
      Net loss .....................            (1.83)             (.71)

Divestiture

      In July  1995,  the  Company  sold its C.S.  Dean  Unit for  approximately
$2,550,000.

3.  Discontinued Operations

      In January  1995,  the  Company  entered  into a plan to  discontinue  the
operations of its coal  properties  and  commenced the permanent  closing of the
mine. As of December 31, 1994,  the Company wrote off its investment in its coal
properties and related  equipment,  eliminated the related minority  interest in
the coal entities, and established a liability of $150,000 pursuant to a plan to
discontinue   operations   for  future  costs   related  to  closing  the  mine.
Additionally,  during 1994,  the Company  sold its interest in Castle  Minerals,
Inc., which was acquired in 1992 to finance the coal  operations,  for $371,000,
net of expenses  related to the sale (see Note 11). The Company  recorded a loss
on these transactions in 1994 of $987,543.  The revenues from coal sales for the
years ended 1993, 1994, and 1995 were $23,759, $104,310, and $-0-, respectively.


                                      F-17
<PAGE>


4.  Marketable Securities

      In May 1993, the Financial  Accounting Standards Board issued Statement of
Financial  Accounting  Standards No. 115, "Accounting for Certain Investments in
Debt and Equity  Securities"  (SFAS 115),  effective for fiscal years  beginning
after December 15, 1993. At December 31, 1994, the Company's  marketable  equity
securities were classified as  available-for-sale.  As of December 31, 1994, the
Company recognized a decrease of approximately $244,000 in shareholders' equity,
representing the recognition in shareholders' equity of unrealized depreciation,
net of taxes, for the Company's investment in equity securities determined to be
available-for-sale, previously carried at the lower of cost or market.

      The  marketable  securities  represent an equity  investment  in a foreign
corporation  which the Company considers as  available-for-sale.  The securities
had an original cost of $570,000 at December 31, 1994 and 1995, and at September
30,  1996.  In October  1996,  the Company  sold its  investment  in  marketable
securities, realizing a loss of $235,197. Such loss was recorded as of September
30, 1996.

      Prior to the adoption of SFAS 115, and to increase the carrying  amount of
its  marketable  securities  portfolio  to market,  a recovery of  $235,000  was
recorded during 1993.

5.  Related Party Transactions

      Accounts receivable from affiliates, officers, and shareholders represents
amounts  receivable  relating to joint interest billings on properties which the
Company operates and advances made to officers.

      Oil and gas production  payable  includes  $5,054 and $-0- at December 31,
1994 and 1995,  respectively,  which  represent  amounts due to  affiliates  and
related parties.

      Note payable to the principal shareholder amounted to $328,259 and $-0- at
December 31, 1994 and 1995, respectively,  including accrued interest of $10,550
and $-0-.  Principal and interest  payments amounted to $333,081 and $354,677 in
the years ended December 31, 1994 and 1995, respectively.

      Overhead reimbursements charged to affiliates and related parties amounted
to $70,039, $7,087, and $-0- in 1993, 1994, and 1995, respectively.

      Charges to the Company for well and other  services  performed  by related
parties were $52,719, $-0-, and $-0- during 1993, 1994, and 1995, respectively.

      Rental  expense for office  furnishings  and equipment of $25,000 in 1993,
$-0- in 1994, and $-0- in 1995,
was paid to a related party.


                                      F-18
<PAGE>


      During 1993, the Company purchased from a shareholder and director various
working interests in wells. The Company issued 10,368 shares of its common stock
in exchange for the shareholder's  working interests in these wells. The Company
increased  its full  cost  pool by  $77,760  with a  corresponding  increase  to
shareholder's equity.

      Wind River Resources  Corporation ("Wind River"), all of the capital stock
of which is owned by the Company's President,  owns a twin-engine airplane.  The
airplane is available  for business use by employees of the Company from time to
time at $385 per hour. The Company paid Wind River a total of $80,678 for use of
the plane during 1995.

6.  Long-Term Debt

Long-term debt consists of the following:

                                             December 31           September 30
                                   ------------------------------  -------------
                                     1994            1995              1996
                                   -------------- ---------------  -------------
                                                                    (Unaudited)

Revolving lines of
  credit due under the
  First Union credit
  agreement (see
  below) .......................     $32,906,652     $35,556,651     $      --
Term notes due under
  the First Union
  credit agreement
  (see below) ..................       8,000,000       6,000,000            --
Bridge facility due to
  Bankers Trust
  Company and ING
  Capital (see
  Note 17) .....................            --              --        85,000,000
Principal shareholder,
  interest at 10%
  (including accrued
  interest of $10,550
  and $-0- at
  December 31, 1994
  and 1995,
  respectively), with
  remaining balance of
  principal and unpaid
  interest due
  December 20, 2001  ...........          28,259            --              --
                                      ----------      ----------     -----------
                                      41,234,911      41,556,651      85,000,000
Less current maturities.........            --              --              --
                                     -----------     -----------     -----------
                                     $41,234,911     $41,556,651     $85,000,000
                                     ===========     ===========     ===========


                                      F-19
<PAGE>


      In June 1994, the Company entered into a credit agreement with First Union
which was subsequently amended during the year. The Company borrowed $40,906,652
during 1994 under the  agreement.  The  borrowings  were composed of advances of
$32,906,652  under a  revolving  line of  credit  which was due June  1997,  and
$8,000,000  under a term note which was due June 15, 1995.  In August 1995,  the
Company amended the credit agreement with First Union.  Under the amended credit
agreement,  the Company has two lines of credit, one for $23,000,000 and one for
$17,000,000 and two term notes,  one for $3,450,000 and one for  $2,550,000.  At
December 31, 1995,  the Company's  borrowings  under the credit  agreement  were
$41,556,651.  The  borrowings  were  composed  of advances  of  $12,656,651  and
$22,900,000 under the revolving lines of credit which are due June 30, 1997, and
$6,000,000  under the term notes which are also due June 30, 1997.  The interest
rate for the revolving credit lines is, at the option of the Company, either (a)
the higher of First Union  prime plus 1/4% or the federal  funds rate plus 3/4%,
floating,  payable monthly, or (b) LIBOR plus 2 1/4% (30-, 60-, 90-, and 180-day
options), with interest payable the earlier of maturity of each LIBOR tranche or
quarterly.  The  interest  rate for the term  notes  is,  at the  option  of the
Company,  either (a) the higher of First  Union  prime plus 3/4% or the  federal
funds  rate plus 1 1/4%,  floating,  payable  monthly,  or (b) LIBOR plus 3 1/4%
(30-,  60-,  90-, and 180-day  options),  with  interest  payable the earlier of
maturity  of each  LIBOR  tranche  or  quarterly.  At  December  31,  1995,  the
$12,656,651 revolver carried interest at 8.19%, the $22,900,000 revolver carried
interest  at 8.06%,  and the term  notes at 8.16%.  The  revolvers  provide  for
borrowing  based  principally on the Company's crude oil and natural gas reserve
base, which was $44,000,000 at December 31, 1995.

      In April 1996, the Company amended the credit  agreement with First Union,
extending the due date to June 1999. In accordance with the credit agreement, in
July 1996 the borrowing base was adjusted to $35,000,000. At September 30, 1996,
the Company's borrowings under this line of credit was $-0-.

      The  revolving  lines  of  credit  may  be  extended,   at  First  Union's
discretion,  and are subject to  semi-annual  redeterminations  of the borrowing
base each June and  December.  The  borrowings  under  the  First  Union  credit
agreement are secured by a first-priority mortgage on all of the Company's crude
oil and natural gas properties and gas plants, as well as a security interest in
accounts receivable,  inventory,  contracts,  and general  intangibles,  and are
guaranteed by the Company.  The First Union credit agreement requires compliance
with  certain  covenants  including,  among other  things,  the ratio of current
assets to  current  liabilities,  excluding  any  current  portion of the credit
agreement,  of not  less  than  1.0 to  1.0;  and  the  ratio  of the  Company's
indebtedness  compared to annualized net income plus non-cash  charges shall not
be greater  than 7.5 to 1.0  through  December  31,  1995,  and 5.0 to 1.0 after
December  31,  1995.  In August 1996,  the ratio of the  Company's  indebtedness
compared to annualized  net income plus  non-cash  charges was amended to 8.0 to
1.0 through  December 31, 1996,  effective  December 31, 1995, and to 5.0 to 1.0
after  December 31, 1996. In addition,  the credit  agreement  requires  certain
financial reporting  requirements and limits the payments of dividends on common
stock,  additional  indebtedness,  mergers and  acquisitions.  Loan fees paid in
connection  with  the  origination  of the  credit  agreement  and  the  amended
agreement have been classified as deferred  financing  fees. In addition,  terms
include a commitment fee of 1/2 of 1% per annum, payable quarterly in arrears on
the average  unused  portion of the borrowing  base.  The debt's  carrying value
approximate its fair values.


                                      F-20
<PAGE>


      On June 30,  1994,  the  Company  secured  advances  under the First Union
facility  adequate to extinguish the total debt and accrued interest owed to the
Company's  previous  lenders,  EEP and EECIP.  The  prepayment  resulted  in the
Company  recording an extraordinary  debt  extinguishment  charge of $1,171,832,
representing the reduction of the deferred financing fees related to the EEP and
EECIP debt origination.

      In August  1993,  EEP and EECIP  agreed to permit  the  Company  to prepay
$14,000,000  of the  outstanding  balances  of the  Company's  notes  out of the
proceeds of the  Company's  common  stock  offering.  In  consideration  of this
agreement,  the Company issued an aggregate of 50,000 shares of its common stock
to EEP and EECIP's general partners,  EEP and Endowment Energy Partners II, L.P.
(EEP II) and, upon making the prepayment of $14,000,000 in October 1993,  issued
an additional 66,666 shares of common stock to EEP and EEP II. The prepayment of
debt and the issuance of the above-discussed  shares of common stock resulted in
the Company recording an extraordinary debt extinguishment charge of $3,036,000,
representing  the fair value of the shares of common stock issued of  $1,325,000
and the reduction of the deferred  financing fees of $1,711,000 in proportion to
the amount of debt  prepaid.  The  issuance  of the above  shares  resulted in a
corresponding increase in common stock and additional paid-in capital.

      The Company has approximately $90,000 of standby letters of credit open at
December 31, 1995.  Approximately  $134,419 of cash is restricted  and in escrow
related to the letters of credit.

7.  Shareholders' Equity

Common Stock

      Holders of common  stock are  entitled  to one vote for each share and are
not entitled to preemptive  rights to subscribe to  additional  shares of common
stock issued by the Company. Holders are entitled to receive dividends as may be
declared  by the  Board of  Directors,  subject  to the  rights  of  holders  of
preferred stock and the terms of the Company's credit agreement,  which restrict
the payment of dividends.

      In October 1993, the Company issued an additional  2,250,000 common shares
through a public  offering,  resulting in net proceeds of $23,045,135.  Loss per
share, calculated on a supplemental basis as if the foregoing event had occurred
at the  beginning  of the year,  would  have  been  $(.16)  loss per share  from
continuing  operations and $(.37) net loss per share for the year ended December
31, 1993.  The  supplemental  earnings per share assumes that  interest  expense
would have been  reduced by  $939,000  from the  prepayment  of  $14,000,000  of
long-term debt from the proceeds of the issuance of the additional common stock.
The  preferred  stock was assumed to be converted  as of the  beginning of 1993;
therefore, income was not required to be adjusted for preferred stock dividends.


                                      F-21
<PAGE>


      In 1994, the Board of Directors  adopted a  Shareholders'  Rights Plan and
declared a dividend of one Common Stock  Purchase  Right (Rights) for each share
of common stock. The Rights are not initially exercisable.  Subject to the Board
of Directors'  option to extend the period,  the Rights will become  exercisable
and will  detach  from the  common  stock ten days after any person has become a
beneficial owner of 20% or more of the common stock of the Company or has made a
tender offer or exchange offer (other than certain qualifying offers) for 20% or
more of the common stock of the Company.

      Once the Rights become exercisable,  each Right entitles the holder, other
than the acquiring  person,  to purchase for $20 one-half of one share of common
stock of the  Company  having a value of four  times  the  purchase  price.  The
Company  may  redeem  the  rights  at any time for  $.01  per  Right  prior to a
specified  period of time after a tender or  exchange  offer.  The  Rights  will
expire in November 2004, unless earlier exchanged or redeemed.

      In November 1995, the Company issued 1,330,000  units,  each consisting of
one share of common  stock  and one  Contingent  Value  Right  (CVR),  through a
private placement, resulting in net proceeds of $10,063,105. Each CVR allows the
holder the right to acquire  additional  shares of common  stock  under  certain
circumstances.  See further discussion of CVRs below. Loss per share, calculated
on a supplemental  basis as if the foregoing event had occurred at the beginning
of the year,  would have been $(.19) loss per share for the year ended  December
31, 1995.  The  supplemental  earnings per share assumes that  interest  expense
would  have been  reduced by  $455,800  from the  prepayment  of  $5,300,000  of
long-term debt from the proceeds of the issuance of the units for the year ended
December 31, 1995.

Preferred Stock

      In  June  1994,  in  connection  with  the  Company's  acquisition  of the
overriding  royalty interest from EEP and EECIP,  45,741 shares of the Company's
Series B 8%, nonvoting cumulative  convertible  preferred stock with a par value
of $100 were issued. The preferred shares are convertible into 508,182 shares of
the Company's  common stock.  Preferred stock dividends  during 1995 amounted to
$365,928.  During  1995,  the  Company  exchanged  the  Series  B 8%,  nonvoting
cumulative  convertible  preferred stock for an equal number of shares of Series
1995-B cumulative convertible preferred stock which have a par value of $.01 per
share and a stated value of $100 per share.

      The Board of  Directors  of the  Company  is  authorized  to  approve  the
issuance of one or more classes or series of  preferred  stock  without  further
authorization of the Company's shareholders. At December 31, 1992, 24,910 shares
of  preferred  stock were  outstanding.  The stock was  entitled to a cumulative
dividend of $10 per share,  payable in shares of preferred stock, was redeemable
at the option of the Company,  and was convertible into common stock at the rate
of 9.271 shares of common  stock for each share of  preferred  stock plus unpaid
dividend.  In October  1993,  in  connection  with the  Company's  common  stock
offering,  the  holders  of the  preferred  stock  converted  all  of  the  then
outstanding  preferred shares,  including the preferred shares issued in payment
of approximately  $934,000 cumulative dividends in arrears,  into 317,539 shares
of common stock.


                                      F-22
<PAGE>


Contingent Value Rights (CVR)

      The CVRs were issued  under the CVR  Agreement  between the  Company,  the
purchasers,  and First Union, as rights agent. The CVR Agreement  provides that,
subject to adjustment as described below, the Company shall issue to each holder
of the CVRs on the Maturity Date (November 17, 1996),  unless the Company shall,
in its sole discretion,  extend the Maturity Date to the Extended  Maturity Date
(November 17, 1997),  then on the Extended  Maturity Date, a number of shares of
common stock, if any, equal to (a) the Target Price ($10.00 on the Maturity Date
or $12.50 on the Extended  Maturity Date) minus the current market value divided
by (b) the current market value; provided,  however, that in no event shall more
than one  share  of  common  stock be  issued  in  exchange  for each CVR at the
Maturity  Date or more than 1.5 shares of common stock be issued in exchange for
each CVR at the Extended Maturity Date. Such  determination by the Company shall
be final and binding on the Company and the holders of CVRs.

      If the  median of the  average  prices of the  common  stock for the three
20-trading day periods  immediately  preceding the Maturity Date or the Extended
Maturity Date, as the case may be, equals or exceeds $10.00 on the Maturity Date
or $12.50 on the Extended Maturity Date (if the Maturity Date is extended by the
Company to the  Extended  Maturity  Date),  as the case may be, no shares of the
common stock will be issuable  with respect to the CVRs.  In addition,  the CVRs
will  terminate if the per share market value equals or exceeds the Target Price
for any period of 30 consecutive  trading days during either the period from and
after  November 17, 1995 to and  including  November 17, 1996, or from and after
November 17, 1996 to and including November 17, 1997.

      In the event  that the  Company  determines  that no shares of the  common
stock are  issuable  with  respect to the CVRs to such  holders,  the CVRs shall
terminate and become null and void and the holders shall have no further  rights
with  respect  thereto.  If the  Maturity  Date of the CVR  Agreement  had  been
December 31, 1995 and  September 30, 1996, an aggregate of 746,480 and 1,117,200
shares,  respectively,  of common stock would have been issued to the holders of
the CVRs.

      Should any  additional  shares of common  stock be  required  to be issued
under the terms of the CVR Agreement,  such issuance will be considered to be an
adjustment to the original sales price per share received in connection with the
sale of the associated common shares; accordingly, the Company will increase its
common stock for the par value related to the additional shares at the time such
shares are issued with a corresponding decrease in additional paid-in capital.

Treasury Stock

      During the nine months ended  September  30, 1996,  the Company  purchased
68,140 shares of its common stock at a cost of $372,254, which are being held as
treasury stock.


                                      F-23
<PAGE>


8.  Stock Option Plans and Warrants

      The Company grants options to its officers,  directors,  and key employees
under its 1984 Incentive Stock Option Plan, Non-Qualified Stock Option Plan, Key
Contributor  Stock Option Plan,  Long-Term  Incentive  Plan,  and Director Stock
Option Plan.

      The  following  is a summary of activity in the stock option plans for the
years  ended  December  31,  1994 and  1995,  and the  nine-month  period  ended
September 30, 1996:

                                                 Price           Options
                                             Per Share (1)     Outstanding
                                            ----------------  -------------

   Outstanding at December 31, 1993 ..         $4.50 - $9.75     132,616
   Granted ...........................          9.75 - 10.75      27,500
   Canceled ..........................          5.50 - 9.75      (18,675)
   Exercised .........................          4.50 - 9.75      (37,908)
                                                               ----------
   Outstanding at December 31, 1994 ..          4.50 - 10.75     103,533
   Granted ...........................             9.50          157,500
   Canceled ..........................          9.50 - 10.75     (42,000)
   Exercised .........................                              -
                                                               ----------
   Outstanding at December 31, 1995 ..          5.50 - 9.75      219,033
   Granted ...........................          5.00 - 6.75      200,777 (2)
   Canceled ..........................             9.75          (20,000)
   Exercised .........................                              -
                                                               ----------

   Outstanding at September 30, 1996 .                           399,810
                                                               ==========

   Options exercisable at                                         
     December 31, 1995 ...............                            52,850
                                                               ==========

         (1) During the nine  months  ended  September  30,  1996,  the  Company
   amended  the  exercise  price to $6.75  per  share on all  previously  issued
   options with an exercise price greater than $6.75 per share.

         (2) Includes  70,000 options  granted at an exercise price of $5.00 for
   which vesting does not begin until the closing price of the Company's  common
   stock exceeds $8.00 per share.


                                      F-24
<PAGE>


      In addition to stock options granted under the plans described  above, the
Long-Term Incentive Plan also provides for the right to receive  compensation in
cash,  awards of common stock, or a combination  thereof.  In 1994 and 1995, the
Company made direct  awards of common  stock of 6,111  shares and 4,800  shares,
respectively.

      The Company also has adopted the Restricted Share Plan for Directors which
provides for awards of common stock to nonemployee  directors of the Company who
did  not,  within  the  year  immediately  preceding  the  determination  of the
director's  eligibility,  receive any award under any other plan of the Company.
In 1994 and 1995, the Company made direct awards of common stock of 2,400 shares
and 3,072 shares, respectively.

      During  the  nine  months  ended   September   30,  1996,   the  Company's
shareholders  approved the Abraxas Petroleum  Corporation  Director Stock Option
Plan (Plan),  which  authorizes the grant of nonstatutory  options to acquire an
aggregate of 104,000  common  shares to those  persons who are directors and not
officers of the Company.  Under the Plan,  each of the seven eligible  directors
was granted an option to purchase 8,000 common shares at $6.75.

Stock Warrants

      In connection with the EEP and EECIP financing  agreements entered into in
1992 and 1993,  the Company  granted stock  warrants  covering  90,000 shares at
$5.25 per share and  135,000  shares at $7.00 per share.  During  1994,  211,500
warrants were  exercised to purchase  common stock for  $1,323,000.  In 1995, no
warrants  were  exercised  by EEP or  EECIP.  For the nine  month  period  ended
September 30, 1996, no warrants were exercised.

      In  connection  with an amendment  and increase in the facility  under the
credit  agreement with First Union and the extension of the due date on the term
note, the Company granted stock warrants to First Union covering  424,000 shares
of its  common  stock at an average  price of $9.79 a share.  The  warrants  are
exercisable  in whole or in part through  December 1999 and are  nontransferable
without the consent of the Company.

      At December  31,  1995,  the Company has  approximately  6,470,000  shares
reserved for future  issuance for  conversion  of its stock  options,  warrants,
Rights,  preferred stock, CVRs, and incentive plans for the Company's  Directors
and employees.


                                      F-25
<PAGE>


9.  Income Taxes

      Deferred income taxes reflect the net tax effects of temporary differences
between the carrying  amounts of assets and liabilities for financial  reporting
purposes and the amounts used for income tax purposes. Significant components of
the Company's deferred tax liabilities and assets are as follows:

                                                   December 31
                                         --------------------------------
                                              1994            1995
                                         --------------------------------

   Deferred tax liabilities:
     Full cost pool, including
      intangible                            $1,292,000      $ 661,000
      drilling costs ...............
     State taxes ...................          187,000         187,000
     Other .........................                -         101,000
                                         --------------------------------
   Total deferred tax liabilities ..        1,479,000         949,000
   Deferred tax assets:
     Coal mine valuation provisions         1,740,000               -
     Depletion .....................          242,000         242,000
     Net operating losses ..........        4,771,000       6,163,000
     Other .........................           21,000          13,000
                                         --------------------------------
   Total deferred tax assets .......        6,774,000       6,418,000
   Valuation allowance for deferred        (5,482,000)     (5,656,000)
     tax assets ....................
                                         --------------------------------
   Net deferred tax assets .........        1,292,000         762,000
                                         --------------------------------

   Net deferred tax liabilities ....        $ 187,000       $ 187,000
                                         ================================

      At  December  31,  1995,  the  Company  had,  subject  to the  limitations
discussed  below,  $18,127,000  of net  operating  loss  carryforwards  for  tax
purposes,  of which  approximately  $4,697,000  are  available  for  utilization
without limitation.  These loss carryforwards will expire from 2002 through 2010
if not utilized.

      As the result of the  acquisition  of certain  partnership  interests  and
crude oil and natural gas properties in 1990 and 1991, an ownership change under
Section 382 of the Internal  Revenue  Code of 1986,  as amended  (Section  382),
occurred  in December  1991.  Accordingly,  it is  expected  that the use of net
operating loss carryforwards  generated prior to December 31, 1991 of $6,916,000
will be limited to approximately $235,000 per year.

      During 1992, the Company acquired 100% of the common stock of an unrelated
corporation.  The use of net operating loss carryforwards of $3,607,000 acquired
in the acquisition are limited to approximately $115,000 per year.

As  a  result  of  the  issuance  of  additional  shares  of  common  stock  for
acquisitions  and sales of common stock,  an additional  ownership  change under
Section 382 occurred in October 1993.  Accordingly,  it is expected that the use
of all net operating loss carryforwards generated through October 1993 of


                                      F-26
<PAGE>


$13,430,000 will be limited to approximately $1,034,000 per year, subject to the
lower  limitations  described  above.  Of the  $13,430,000  net  operating  loss
carryforwards  existing at October 1993, it is anticipated  that the maximum net
operating  loss that may be  utilized  before it expires is  $7,188,000.  Future
changes in ownership may further limit the use of the Company's carryforwards.

      In addition to the Section 382 limitations,  uncertainties exist as to the
future  utilization of the operating loss  carryforwards  under the criteria set
forth under FASB  Statement No. 109.  Therefore,  the Company has  established a
valuation  allowance of  $5,482,000  and  $5,656,000  for deferred tax assets at
December 31, 1994 and 1995, respectively.

      The  reconciliation  of income tax  attributable to continuing  operations
computed at the U.S. federal statutory tax rates to income tax expense is:

                                             December 31
                             --------------------------------------------
                                 1993           1994           1995
                             -------------- -------------- --------------

   Tax (expense) benefit
     at U.S. statutory          $ 569,000     $  (38,400)     $ 411,000
     rates (34%) ..........
   (Increase) decrease in
     deferred tax asset          (469,000)        31,600       (174,000)
     valuation allowance ..
   Deferred state income         (186,749)             -              -
     taxes ................
   Other ..................      (100,000)         6,800       (237,000)
                             -------------- -------------- --------------

                                $(186,749)    $        -      $       -
                             ============== ============== ==============

10.  Leases

      The Company leases its existing  primary office space for $8,591 per month
under a noncancelable  lease expiring on June 30, 1998. During 1995, the Company
entered into a  noncancelable  lease for new primary office space at $13,700 per
month through March 2001 and $18,975 per month through March 2006.

      During the years ended  December 31,  1993,  1994,  and 1995,  the Company
incurred  rent  expense  of  approximately  $143,000,  $108,000,  and  $103,000,
respectively.  Future  minimum  rental  payments  are as follows at December 31,
1995:

   1996 .................................................    $ 225,816
   1997 .................................................      219,016
   1998 .................................................      217,848
   1999 .................................................      164,448
   2000 .................................................      227,700
   Thereafter ...........................................    1,138,500

      Aggregate  future  minimum  rentals  to be  received  under  noncancelable
subleases as of December 31, 1995 amount to $92,664.

                                      F-27
<PAGE>


11.  Investment in Coal Properties

      Over the past years the Company, through a subsidiary, had been developing
certain coal properties in Colorado. During this period, development costs along
with interest on its bank debt have been  capitalized  as coal  properties.  The
interest  accrued into the subsidiary  bank debt,  which was  nonrecourse to the
parent.  Effective July 1, 1992, the subsidiary commenced expensing interest and
other related operating costs.

      In March 1992, the subsidiary acquired for $15,000 a controlling  interest
in an inactive Vancouver publicly traded company,  Castle Minerals,  Inc. (CMI).
In December  1992,  the subsidiary  received  approval from the Vancouver  Stock
Exchange,  whereby the subsidiary  contributed all of its coal-related assets to
CMI in exchange for  additional  shares  amounting to  approximately  86% of the
capital stock of CMI.

      During  1992,  the  Company  recorded  as  a  charge  against  operations,
$3,137,000,  representing interest expense and other operating costs of the coal
mine of approximately $512,000 and a reduction in the carrying value of the coal
mine by  $2,625,000.  The estimated  fair value of the coal mine was  determined
based upon an appraisal  that assumes the startup of commercial  production  and
the availability of markets in which to sell the coal production.

      On April 14, 1993,  the Company  entered into a letter  agreement with the
lender of the subsidiary bank debt (Bank) effective March 31, 1993,  wherein the
Company  assumed a portion of the subsidiary  bank debt by issuing a note to the
Bank in the principal amount of $1,000,000.  In addition,  the subsidiary issued
to the Bank its  preferred  stock with a par value of  $2,000,000,  and the Bank
canceled the  subsidiary  bank debt of  $4,302,675.  The preferred  stock of the
subsidiary  requires no  dividends  prior to April 1, 1996 and at 8%  thereafter
payable in cash or property of the subsidiary,  carries a liquidation preference
of $2,000,000,  and is redeemable at the option of the subsidiary at $2,000,000.
The preferred  stock had been recorded at  management's  estimate of the stock's
fair  market  value of  $840,000  and was  carried as  minority  interest in the
December 31, 1993 balance sheet. A pretax gain of $2,462,664,  representing  the
excess of the carrying value of the subsidiary bank debt over the estimated fair
value of the  preferred  stock and the future cash  payments  of the  $1,000,000
subsidiary  bank debt assumed by the Company,  was recorded as an  extraordinary
item for the year ended December 31, 1993. On October 29, 1993, the Company paid
its note of $1,000,000  plus interest to the Bank. In December 1994, the Company
discontinued its operation of the coal properties (see Note 3).

12.  Benefit Plans

      During 1993, the Company established a defined  contribution plan (401(k))
covering all eligible  employees of the Company.  No contributions  were made by
the Company during 1993,  1994, or 1995. The employee  contribution  limitations
are determined by formulas  which limit the upper  one-third of the plan members
from contributing amounts that would cause the Plan to be top-heavy. The overall
contribution  is  limited  to  the  lesser  of  20%  of  the  employee's  annual
compensation or $9,240.


                                      F-28
<PAGE>


13.  Incentive Bonus Plan

      In January 1995,  the Company  created the Technical  Employees  Incentive
Bonus Plan,  whereby  technical  employees have an incentive to find and develop
crude oil and  natural  gas  reserves on an  economic  basis  beneficial  to the
Company  and  its  shareholders.   Participants  are  any  technical   employees
(geologist, geophysicist, engineer) not covered by another incentive bonus plan.
A participant may earn a monetary bonus of up to 65% of the  participant's  base
salary each year.  The bonuses are  determined in the first quarter of each year
and are based upon the amount of new proved developed  producing reserves booked
each  year  on  approved  exploration  and  exploitation  projects  taking  into
consideration the cost per equivalent barrel of developing the new reserves.  No
bonuses were paid under this plan in 1995.

14.  Contingencies

      From time to time,  the  Company is  involved  in  litigation  relating to
claims  arising  out of its  operations  in the normal  course of  business.  At
December 31, 1995 and  September  30,  1996,  the Company was not engaged in any
legal proceedings that are expected, individually or in the aggregate, to have a
material adverse effect on the Company's financial statements.

15.  Commodity Swap Agreement

      In December 1995, the Company entered into a commodity swap agreement with
First Union.  Under the commodity swap agreement,  the Company receives or makes
payments to First Union based on the  differential  between a fixed and variable
price for natural gas. At December 31, 1995 and September 30, 1996,  the Company
had agreed to exchange  payments  monthly on 5,000 MMBTU of natural gas per day,
beginning in March 1996 and  extending  through  November  1996.  Under the swap
agreement, the Company receives fixed prices averaging $1.747 per MMBTU and pays
a variable price based on the arithmetic average of the last three trading days'
settlement  price of the first nearby  contract for natural gas as quoted by the
New York Mercantile Exchange. For the year ended December 31, 1995, there was no
effect on income from continuing  operations as there was no activity related to
the swap  agreement,  which  begins in March 1996.  At September  30, 1996,  the
effect on income was a loss of $510,767.

16.  Subsequent Events

      In January 1996, the Company made a $3,000,000  investment in Grey Wolf, a
privately  held Canadian  corporation,  which in turn invested these proceeds in
newly  issued  shares of Cascade Oil and Gas Ltd.  (Cascade),  an  Alberta-based
corporation  whose shares are traded on the Alberta Stock Exchange.  The Company
owns 78% of the outstanding  capital stock of Grey Wolf, and, through Grey Wolf,
the Company owns approximately 52% of the outstanding  capital stock of Cascade.
Certain officers and directors of the Company own approximately 6% of the common
stock of Grey Wolf and serve as directors of Grey Wolf.

      In March 1996,  the Company  sold all of its  interest in its Portilla and
Happy  Fields  to  an  unrelated  purchaser   (Purchaser  or  Limited  Partner).
Simultaneously  with this  sale,  the  Limited  Partner  also  acquired  the 50%
overriding  royalty  interest  in the  Portilla  field  owned by the  Commingled
Pension Trust Fund (Petroleum II), the trustee of which is Morgan Guaranty Trust
Company of New York (Pension  Fund). In connection with the purchase of both the
Company's  interest in the  Portilla  and Happy  Fields and the  Pension  Fund's
interest in the Portilla Field (together,  the Properties),  the Limited Partner
obtained a loan  (Bank  Loan)  secured by the  Properties  and  contributed  the
Properties to Portilla-1996,  L.P., a Texas limited partnership (Partnership). A
subsidiary of the Company,  Portilla-Happy Corporation (Portilla-Happy),  is the
general partner of the Partnership. The aggregate purchase price received by the
Company was  $17,600,000,  of which  $2,000,000  was used to purchase a minority
interest  in the  Partnership,  which has been  accounted  for using the  equity
method.  At September 30, 1996, the Company's  investment in and advances to the
Partnership  represents the original  investment of $2,000,000 and advances made


                                      F-29
<PAGE>

to the Partnership  primarily for development drilling net of production revenue
collected by the Company on behalf of the Partnership.

17.  Acquisitions and Related Financing (Unaudited)

      On September 30, 1996, the Company acquired interests in certain producing
crude  oil  and  natural  gas  properties  located  in  the  Wamsutter  area  of
southwestern Wyoming (the Wyoming Properties) from Enserch Exploration, Inc. The
initially agreed to purchase price of $47,500,000 was adjusted to $45,856,000 to
reflect the preliminary  estimate of net production revenue which accrued to the
Company from April 1, 1996, the effective date,  until closing,  net of interest
owed by the Company for the same period.  As of September 30, 1996,  the Company
recorded $45,856,000 in its oil and gas properties. The acquisition was financed
by borrowings under the Bridge Facility discussed below.

      On September  30, 1996,  the Company  entered into a credit  facility with
Bankers Trust Company (BTCo) and ING Capital (together the Lenders), providing a
bridge facility in the total amount of $90,000,000,  consisting of a $30,000,000
revolving credit facility,  with $25,000,000 initially available,  a $35,000,000
term loan and a $25,000,000 term loan (the Bridge Facility). The Bridge Facility
is secured by a first priority lien on  substantially  all of the Company's U.S.
assets and matures on October 31, 1997. If borrowings  under the Bridge Facility
have not been  repaid by each of  November  15,  1996 and  January 1, 1997,  the
Company will be obligated to pay the Lenders  additional fees and/or warrants to
purchase common stock of the Company. The agreement limits the Company's debt to
the  Bridge  Facility,  restricts  the  payment of  dividends  other than to the
existing  preferred  stock,  and requires  compliance with minimum  tangible net
worth,  current and interest  coverage  ratios and certain  financial  reporting
requirements.

      The revolving credit facility and the $35,000,000 term loan carry interest
at LIBOR  plus 2 1/4% and the  $25,000,000  term loan  carries  interest  at the
BTCo's prime rate plus 3%,  increasing at 1/2% for each 90-day period thereafter
to a maximum of prime plus 4 1/2%.  Under an interest rate swap  agreement,  the
Company pays a fixed rate of 6.15% on $25,000,000 of borrowings while the lender
under the Bridge  Facility will pay a floating  rate equal to the  USD-LIBOR-BBA
rate for one month maturities to the Company.  Settlements are due monthly.  The
agreement  terminates in August 1997 and may be extended for an additional  year
by the lenders.  On September 30, 1996, the Company borrowed  $85,000,000  under
the Bridge  Facility  which was used to repay all amounts due First Union and to
finance the purchase of the Wyoming  Properties.  In connection  with the Bridge
Facility the commodity swap agreement discussed in Note 15 was terminated.

   
      On November 14, 1996, the Company repaid all amounts outstanding under the
Bridge  Facility with proceeds from the offering of $215,000,000 of Senior Notes
described below and entered into an amended and restated  credit  agreement (New
Credit  Facility).  The New Credit  Facility  provides  for a revolving  line of
credit  with an  initial  availability  of $20.0  million,  subject  to  certain
customary  conditions  including a borrowing  base  condition.  No amounts  were
outstanding on September 30, 1996 under the New Credit Facility.
    

      Commitments  available  under  the New  Credit  Facility  are  subject  to
borrowing base redeterminations to be performed semi-annually and, at the option
of each of the  Company  and the  Lenders,  one  additional  time per year.  Any
outstanding  principal  balance in excess of the borrowing  base will be due and
payable in three equal monthly payments after a borrowing base  redetermination.
The borrowing base will be determined in the Agent's sole discretion, subject to
the approval of the Lenders, based on the value of the Company's reserves as set
forth in the reserve report of the Company's  independent  petroleum  engineers,
with consideration given to other assets and liabilities.

      The New Credit  Facility has an initial  revolving term of two years and a
reducing period of three years from the end of the initial two-year period.  The
commitment  under the New Credit  Facility will be reduced  during such reducing

                                      F-30
<PAGE>

period by eleven equal  quarterly  reductions.  Quarterly  reductions will equal
8.2% per quarter with the  remainder due at the end of the  three-year  reducing
period.

      The applicable interest rate charged on the outstanding balance of the New
Credit  Facility is based on a facility usage grid. If the borrowings  under the
New  Credit  Facility  represent  an  amount  less than or equal to 33.3% of the
available  borrowing  base,  then the  applicable  interest  rate charged on the
outstanding balance will be either (a) an adjusted rate of the London Inter-Bank
Offered Rate  ("LIBOR")  plus 1.25% or (b) the prime rate of the Agent (which is
based on the agent's  published prime rate) plus 9.50%. If the borrowings  under
the New Credit  Facility  represent an amount greater than or equal to 33.3% but
less than 66.7% of the available  borrowing base,  then the applicable  interest
rate on the outstanding principal will be either (a) LIBOR plus 1.75% or (b) the
prime  rate of the Agent  plus  0.50%.  If the  borrowings  under the New Credit
Facility  represent an amount  greater  than or equal to 66.7% of the  available
borrowing base, then the applicable  interest rate on the outstanding  principal
will be either  (a) LIBOR  plus  2.00% or (b) the prime  rate of the Agent  plus
0.50%.
LIBOR elections can be made for periods of one, three or six months.

   
      The New Credit Facility  contains a number of covenants that,  among other
things, restrict the ability of the Company to (i) incur certain indebtedness or
guarantee obligations, (ii) prepay other indebtedness including the Notes, (iii)
make investments, loans or advances, (iv) create certain liens, (v) make certain
payments, dividends and distributions, (vi) merge with or sell assets to another
person or  liquidate,  (vii)  sell or  discount  receivables,  (viii)  engage in
certain intercompany transactions and transactions with affiliates,  (ix) change
its business, (x) experience a change of control and (xi) make amendments to its
charter,  by-laws and other debt instruments.  In addition, under the New Credit
Facility,  the Company is required to comply with specified financial ratios and
tests,  including  minimum debt service coverage ratios,  maximum funded debt to
EBITDA  (earnings  from  continuing  operations  before income  taxes,  interest
expense,  depletion,  deprecation and amortization  and other non-cash  charges)
tests, minimum net worth tests and minimum working capital tests.
    

      The New Credit Facility  contains  customary events of default,  including
nonpayment of principal, interest or fees, violation of covenants, inaccuracy of
representations  or warranties in any material respect,  cross default and cross
acceleration to certain other indebtedness,  bankruptcy,  material judgments and
liabilities and change of control.

      In September  1996, the Company entered into an agreement with the Limited
Partner and certain  noteholders  (Noteholders) of the Partnership,  pursuant to
which the Company  agreed to  purchase  the  Limited  Partner's  interest in the
Partnership  and the  Noteholders'  notes in the aggregate  principal  amount of
$5,920,000 (Notes),  resulting in the Company's owning, on a consolidated basis,
all of the equity interests in the Partnership.  The aggregate consideration for
the purchase of the Limited Partner's  interest in the Partnership and the Notes
is  $6,961,000.  The  Company  will  also  assume  the Bank  Loan  which  had an
outstanding  principal  balance of  approximately  $20,639,000 as of October 31,
1996, and a commodity price hedge  agreement.  Under the terms of the agreement,
the Company will be required to receive or make payments to BTCo and ING Capital
based on a  differential  between a fixed and  variable  price for crude oil and
natural gas through November 2001 on volumes ranging from 8,160 barrels of crude
oil to 20,000  barrels of crude oil per month and 14,850 MMBTU of natural gas to
87,406 MMBTU of natural gas per month.  Under this  agreement,  the Company will
receive  fixed prices  ranging from $17.20 per barrel of crude oil to $18.55 per
barrel of crude oil and $1.793  per MMBTU of natural  gas to $1.925 per MMBTU of
natural  gas  and  will  make  payments  based  on  the  price  for  west  Texas
intermediate  light  sweet  crude oil on the NYMEX for crude oil and the  Inside
FERC,  Tennessee Gas Properties Co. Texas price for natural gas. Currently there
is a net unrealized loss of approximately $1.8 million under the commodity price
hedge. On November 14, 1996, the Company closed the transaction.

      As a result,  the Company  reacquired  those interests in the Portilla and
Happy Fields which it previously  owned, as well as the interest in the Portilla
Field  previously  owned by the Pension  Fund.  The Company  will include in its
balance  sheet the amount  previously  removed  from oil and gas  properties  in

                                      F-31
<PAGE>

connection with the sale of its interest in the Portilla and Happy Fields during
the quarter  ended March 31, 1996,  as well as the amount of the purchase  price
paid for the Pension Fund's interest in the Portilla Field,  and all development
drilling  expenditures  incurred  on the  properties,  less the  amount  of DD&A
related to the  properties  from the  formation of the  Partnership  through the
closing of the transaction.

      In October 1996,  the Company  entered into a letter of intent to purchase
100% of the  outstanding  capital stock of CGGS  Canadian Gas Gathering  Systems
Inc. (CGGS) in Calgary, Canada after the consummation of the sale of CGGS of its
Nevis gas processing plant, for approximately U.S.$85,000,000 plus the amount of
CGGS's working  capital at August 1, 1996,  subject to price  adjustments.  CGGS
owns  producing  oil and gas  properties  in  Western  Canada and  adjacent  gas
gathering  and  processing  facilities  as  well as  undeveloped  net  acres  of
leaseholds.  On  November  14,  1996,  the  Company,  through  its wholly  owned
subsidiary,  Canadian Abraxas Petroleum  Limited  (Canadian  Abraxas) closed the
transaction  and  immediately  merged CGGS with and into Canadian  Abraxas,  and
Canadian Abraxas,  as the surviving entity,  used the net proceeds from the sale
of the Nevis gas processing plant to retire all of the outstanding debentures of
CGGS.  The  transaction  was  financed  by a portion  of the  proceeds  from the
offering of $215,000,000 of Senior Notes discussed below.

      On November 14, 1996, the Company and Canadian Abraxas  completed the sale
of $215,000,000 aggregate principal amount of Senior Notes due November 1, 2004.
Interest at 11.5% is payable  semi-annually  on May 1 and  November 1. The Notes
are general  unsecured  obligations of the Company and Canadian  Abraxas and the
Company  and  Canadian  Abraxas are joint and  several  obligors.  The Notes are
redeemable,  in whole or in part,  at the  option of the  Company  and  Canadian
Abraxas on or after  November  1, 2000,  and any time prior to November 1, 1999,
the Company and Canadian Abraxas may redeem up to 35% of the aggregate principal
amount of the Notes with the cash  proceeds of equity  offerings at a redemption
price of 111.5% of the aggregate  principal  amount of the Notes to be redeemed.
The terms of the Indenture  related to the Notes  provide for certain  financial
covenants which may limit the ability of the Company to incur additional debt.

   
      In November  1996,  the Company  obtained a release of the 50%  overriding
royalty interest in the East White Point Field in San Patricio County, Texas and
the Stedman  Island  Field in Nueces  County,  Texas from the  Pension  Fund for
$9,300,000 before adjustment for accrual of net revenue to closing.  The Company
will record the net purchase  price of  approximately  $8,771,000 to its oil and
gas properties.
    

18.  Oil and Gas Properties

      The Company's  investment in crude oil and natural gas  properties  was as
follows:

                                                    December 31
                                            -----------------------------
                                                1994           1995
                                            -------------- --------------

   Proved crude oil and natural gas
     properties, including gas                $94,542,481    $104,127,204
     processing plants ..................
   Accumulated depreciation, depletion,
     and amortization, and valuation         (24,363,918)   (29,651,521)
     allowances .........................
                                            -------------- --------------

   Net capitalized costs ................     $70,178,563    $74,475,683
                                            ============== ==============


                                      F-32
<PAGE>


      Costs  incurred,  capitalized,  and  expensed in crude oil and natural gas
producing activities are as follows:

                                             December 31
                             --------------------------------------------
                                 1993           1994           1995
                             -------------- -------------- --------------

  Property acquisition costs:
  Proved ..................    $20,479,509    $33,597,172    $  718,871
  Unproved ................         42,726          4,786          -
                             -------------- -------------- --------------

                               $20,522,235    $33,601,958    $  718,871
                             ============== ============== ==============

  Property development and
   exploration costs ......    $ 5,116,747    $ 7,150,943    $11,398,088
                             ============== ============== ==============

  Depreciation, depletion,
   and amortization .......    $ 2,360,200    $ 3,776,823    $ 5,313,003
                             ============== ============== ==============

  Depletion per
   equivalent barrel of        
   production ............     $      5.03    $      4.35    $      4.67
                             ============== ============== ==============

      The results of  operations  for oil and gas  producing  activities  are as
follows:

                                              December 31
                              --------------------------------------------
                                  1993           1994           1995
                              ------------- ------------------------------

  Revenues ..............      $7,274,676    $11,114,028    $13,659,556
  Production costs ......      (2,895,651)    (3,693,085)    (4,333,240)
  Depreciation,
   depletion, and              
   amortization .........      (2,360,200)    (3,776,823)    (5,313,003)
  Abandoned prospects ...         (22,343)             -              -
  General and                    
   administrative .......        (127,377)      (202,579)      (260,435)
  Income taxes ..........               -              -              -
                              ------------- -------------   ------------

  Results of operations
   from oil and gas
   producing activities
   (excluding corporate         
   overhead and interest
   costs) ...............     $ 1,869,105    $ 3,441,541    $ 3,752,878
                              =============  ============   ============

                                      F-33
<PAGE>



















                            SUPPLEMENTAL INFORMATION
                                   RELATING TO
                         OIL AND GAS PRODUCING COMPANIES


              For the Years Ended December 31, 1993, 1994, and 1995
                  and the Six-Month Period Ended June 30, 1996




<PAGE>

                                        
                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                      SUPPLEMENTAL INFORMATION - UNAUDITED

               December 31, 1993, 1994, and 1995 and June 30, 1996
      (All Supplemental Information for the Periods Presented is Unaudited)


Estimated Quantities of Proved Oil and Gas Reserves

      The  following  table  presents the  Company's  estimate of its net proved
crude oil and natural gas reserves as of December 31, 1993,  1994, and 1995, and
June 30, 1996. The Company's  management  emphasizes that reserve  estimates are
inherently  imprecise and that estimates of new  discoveries  are more imprecise
than those of producing oil and gas properties.  Accordingly,  the estimates are
expected to change as future information  becomes available.  The estimates have
been prepared by independent petroleum reserve engineers.

                                                Liquid        Natural
                                             Hydrocarbons       Gas
                                            --------------- -------------
                                              (Barrels)        (Mcf)
   Proved developed and undeveloped reserves:
     Balance at December 31, 1992 .....        1,834,846      5,660,070
      Revisions of previous estimates .         (298,390)    (1,339,668)
      Extensions and discoveries ......            9,728      1,486,680
      Purchase of minerals in place ...        3,063,401     11,822,353
      Production ......................         (304,804)      (985,385)
      Sale of minerals in place .......         (218,510)       (53,410)
                                            --------------- -------------
     Balance at December 31, 1993 .....        4,086,271     16,590,640
      Revisions of previous estimates .          854,672      5,034,435
      Extensions and discoveries ......        2,267,787     15,061,671
      Purchase of minerals in place ...        2,416,646     33,288,229
      Production ......................         (468,867)    (2,392,855)
      Sale of minerals in place .......              (19)        (3,027)
                                            --------------- -------------
     Balance at December 31, 1994 .....        9,156,490     67,579,093
      Revisions of previous estimates .       (1,327,795)   (18,941,473)
      Extensions and discoveries ......        1,335,349      6,819,415
      Purchase of minerals in place ...          213,998      2,888,885
      Production ......................         (544,825)    (3,552,671)
      Sale of minerals in place .......         (565,975)      (224,642)
                                            --------------- -------------
     Balance at December 31, 1995 .....        8,267,242     54,568,607
      Revisions of previous estimates .         (353,035)    (3,260,607)
      Extensions and discoveries ......          862,674      4,772,542
      Purchase of minerals in place ...          230,647      1,700,440
      Production ......................         (261,872)    (1,758,034)
      Sale of minerals in place .......       (2,104,957)    (3,456,916)
                                            --------------- -------------

     Balance at June 30, 1996 .........        6,640,699 (1) 52,566,032
                                            =============== =============
                                      F-34

<PAGE>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                SUPPLEMENTAL INFORMATION - UNAUDITED (CONTINUED)

               December 31, 1993, 1994, and 1995 and June 30, 1996
      (All Supplemental Information for the Periods Presented is Unaudited)


Estimated Quantities of Proved Oil and Gas Reserves (continued)

                                               Liquid         Natural
                                            Hydrocarbons        Gas
                                            -------------- --------------
                                              (Barrels)        (Mcf)
   Proved developed reserves:
     December 31, 1993 ................        3,468,492    15,242,500
                                            ============== ==============

     December 31, 1994 ................        5,705,678    48,973,212
                                            ============== ==============
    
     December 31, 1995 ................        5,999,581    44,025,782
                                            ============== ==============

     June 30, 1996 ....................        4,885,838    41,902,598
                                            ============== ==============

         (1) Includes  127,700 barrels of crude oil from the Company's  Canadian
   subsidiary,  Cascade,  which are not included in the Company's  June 30, 1996
   reserve report.

      All proved reserves are located within the continental United States.

      The significant  downward revision in 1995 of previous liquid hydrocarbons
and  natural gas was due  principally  to  decreased  estimates  of  recoverable
reserves in existing wells related to disappointing drilling results principally
in  the  East  White  Point  field,  resulting  in  reclassification  of  proved
undeveloped reserves to probable reserves.

      The significant  upward  revision in 1994 of previous liquid  hydrocarbons
and  natural gas was due  principally  to  increased  estimates  of  recoverable
reserves in existing wells as a result of drilling and workover success in 1994,
combined with the completion of geological  engineering studies on several major
fields.

      The  significant  downward  revision  in  1993  of  previous  natural  gas
quantities was due principally to the reclassification of natural gas liquids to
liquid  hydrocarbons.  The significant  downward revision of liquid hydrocarbons
was caused by the  approximate  30 percent  decrease  in the price of crude oil,
partially offset by the reclassification of the natural gas liquids.

                                      F-35

<PAGE>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                SUPPLEMENTAL INFORMATION - UNAUDITED (CONTINUED)

               December 31, 1993, 1994, and 1995 and June 30, 1996
      (All Supplemental Information for the Periods Presented is Unaudited)


Standardized  Measure of Discounted Future Net Cash Flows Relating to Proved Oil
and Gas Reserves

      The following  disclosures  concerning the standardized  measure of future
cash flows from proved  crude oil and  natural gas  reserves  are  presented  in
accordance  with  Statement  of  Financial  Accounting  Standards  No.  69.  The
standardized  measure does not purport to represent the fair market value of the
Company's proved crude oil and natural gas reserves.  An estimate of fair market
value  would also take into  account,  among  other  factors,  the  recovery  of
reserves not  classified  as proved,  anticipated  future  changes in prices and
costs, and a discount factor more  representative of the time value of money and
the risks inherent in reserve estimates.

      Under the  standardized  measure,  future cash inflows  were  estimated by
applying  period-end prices at December 31, 1995 and June 30, 1996, adjusted for
fixed and  determinable  escalations,  to the  estimated  future  production  of
year-end proved  reserves.  Future cash inflows were reduced by estimated future
production and  development  costs based on year-end costs to determine  pre-tax
cash  inflows.  Future  income taxes were computed by applying the statutory tax
rate to the excess of  pre-tax  cash  inflows  over the  Company's  basis in the
associated  proved crude oil and natural gas  properties,  less the tax basis of
the  properties.  Operating  loss  carryforwards,  tax  credits,  and  permanent
differences  to the extent  estimated  to be  available  in the future were also
considered in the future income tax calculations,  thereby reducing the expected
tax expense.

      Future net cash inflows  after income  taxes were  discounted  using a 10%
annual discount rate to arrive at the Standardized Measure.

      Set forth below is the Standardized Measure relating to proved oil and gas
reserves for:
<TABLE>
<CAPTION>

                                                                          Six-Month
                                                                            Period
                                  Years Ended December 31                   Ended
                      ----------------------------------------------       June 30
                            1993          1994              1995             1996
                      -------------  --------------    -------------   -------------
                                                            
<S>                  <C>             <C>               <C>             <C>          
Future cash inflows  $  91,302,460   $ 238,027,959     $ 243,968,579   $ 233,993,225
Future production
  and development
  costs ...........    (27,045,914)    (84,551,808)       79,910,127     (76,840,346)
Future income
  tax expense .....    (11,109,000)    (26,542,000)      (28,014,454)    (26,506,019)
                     --------------   -------------    --------------   -------------
Future net cash
  flows ...........     53,147,546     126,934,151       136,043,998     130,646,860
Discount ..........    (20,219,000)    (49,241,151)      (48,884,079)    (50,073,402)
                     --------------   --------------   --------------   -------------
Standardized
  Measure of
  discounted
  future net
  cash relating
  to proved
  reserves ........  $  32,928,546   $  77,693,000     $  87,159,919   $  80,573,458
                     ==============  =============     =============   =============
</TABLE>
                                      F-36

<PAGE>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                SUPPLEMENTAL INFORMATION - UNAUDITED (CONTINUED)

               December 31, 1993, 1994, and 1995 and June 30, 1996
      (All Supplemental Information for the Periods Presented is Unaudited)


Changes in Standardized  Measure of Discounted Future Net Cash Flows Relating to
Proved Oil and Gas Reserves

      The following is an analysis of the changes in the Standardized Measure:

                                                               Six-Month
                                                                Period
                             Year Ended December 31              Ended
                      --------------------------------------    June 30
                            1993         1994          1995       1996
                      ------------  ------------  -----------  --------------

  Standardized
    Measure,          
    beginning of
    year .........     $12,656,520  $32,928,546   $77,693,000  $87,159,919
  Sales and
    transfers of
    oil and gas     
    produced, net
    of production
    costs ........      (4,379,025)  (7,420,942)   (9,351,316)  (5,833,143)
  Net changes in
    prices and
    development
    and               
    production
    costs from
    prior year ...       1,597,103    2,450,058    22,559,686   10,032,893
  Extensions,
    discoveries,
    and improved
    recovery,        
    less related
    costs ........       1,613,724   13,509,056    13,475,100    9,467,077
  Purchases of
    minerals in      
    place ........      31,098,560   29,162,942     3,867,205    2,935,043
  Sales of
    minerals in      
    place ........      (1,162,137)      (2,000)   (3,355,289) (15,308,066)
  Revision of
    previous
    quantity         
    estimates ....      (3,282,778)   7,346,415   (24,936,935)  (5,118,486)
  Change in
    future income       (2,989,000)   5,804,000       382,460   (2,462,218)
    tax expense ..
  Other ..........      (3,490,071)  (9,377,929)     (943,292)  (4,657,557)
  Accretion of       
    discount .....       1,265,650    3,292,854     7,769,300    4,357,996
                       -----------  -----------   -----------  -----------

  Standardized
    Measure, end      
    of year ......     $32,928,546  $77,693,000   $87,159,919  $80,573,458
                       ===========  ===========   ===========  ===========

      The net change in prices  and  production  costs  from prior  years in the
Standardized  Measure of discounted  future net cash flows was predominantly due
to an approximate increase in the price of an equivalent barrel of oil of $2.39,
offset by an increase in the production  cost of an equivalent  barrel of oil of
$.70.

                                      F-37
<PAGE>




                        AUDITORS' REPORT TO THE DIRECTORS



To the Board of Directors of
Canadian Gas Gathering Systems Inc.

      We have audited the balance sheets of CGGS Canadian Gas Gathering  Systems
Inc. as at October 31, 1995 and 1994 and the  statements of earnings  (loss) and
deficit and changes in financial  position for the years ended October 31, 1995,
1994  and  1993.  These  financial  statements  are  the  responsibility  of the
Company's  management.  Our  responsibility  is to  express  an opinion on these
financial statements based on our audits.

      We conducted our audits in accordance  with  generally  accepted  auditing
standards.  Those standards  require that we plan and perform an audit to obtain
reasonable  assurance  whether  the  financial  statements  are free of material
misstatements. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management, as well as evaluating the overall financial statement presentation.

      In our opinion, these financial statements present fairly, in all material
respects,  the financial position of the Company as of October 31, 1995 and 1994
and the results of its operations and the changes in its financial  position for
the years ended  October 31, 1995,  1994 and 1993 in accordance  with  generally
accepted accounting principles.



KPMG
Chartered Accountants

Calgary, Canada
January 12, 1996


                                      F-38
<PAGE>
<TABLE>
<CAPTION>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                                 BALANCE SHEETS

                              (In Canadian Dollars)


                                     ASSETS

                                               October 31           October 31
                                       ----------------------------
                                           1994          1995          1996
                                       ------------- ---------------------------
                                                                    (Unaudited)
Current assets:
<S>                                   <C>           <C>            <C>         
  Cash and short-term deposits .....  $  8,326,000  $  1,274,000   $ 10,050,000
  Accounts receivable ..............    11,619,000    12,850,000     13,540,000
                                       ------------  -----------   ------------
                                        19,945,000    14,124,000     23,590,000

Capital assets (note 3) ............   129,432,000   128,095,000    123,857,000
Deferred financing costs (note 4) ..     1,628,000     1,482,000      1,336,000
Deferred foreign exchange loss ......    9,775,000     7,882,000      6,858,000
                                       -----------   -----------    ------------

  Total assets .......................$ 160,780,000 $151,583,000   $155,641,000
                                       ============ ============   =============
</TABLE>
<TABLE>
<CAPTION>

                      LIABILITIES AND SHAREHOLDERS' EQUITY

                                                October 31           October 31
                                       -----------------------------
                                           1994           1995          1996
                                       -------------- --------------------------
                                                                     (Unaudited)
Current liabilities:
  Debenture interest payable to        
<S>                                   <C>            <C>           <C>        
   shareholders ....................  $  1,399,000   $  1,344,000  $ 1,342,000
  Accounts payable .................    10,108,000      4,335,000    7,201,000
                                      ------------   ------------  ------------
   Total current liabilities .......    11,507,000      5,679,000    8,543,000

Long-term shareholders' debt (note 5)  114,167,000    113,070,000  113,179,000
Provision for future site                
  restoration ......................     2,236,000      3,015,000    4,148,000
                                      ------------   ------------  ------------
                                       127,910,000    121,764,000  125,870,000

Shareholders' equity:
  Share capital (note 6) ...........    34,213,000     34,213,000   34,213,000
  Deficit ..........................    (1,343,000)    (4,394,000)  (4,442,000)
                                       -------------- ------------- -----------
   Total shareholders' equity           32,870,000     29,819,000   29,771,000

Commitments (note 10)
                                     -------------  ------------- --------------
   Total liabilities and                 
     shareholders' equity .......... $160,780,000   $151,583,000  $155,641,000
                                     =============  ============= ==============

</TABLE>



                 See accompanying notes to financial statements.

                                      F-39
<PAGE>
<TABLE>
<CAPTION>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                    STATEMENTS OF EARNINGS (LOSS) AND DEFICIT

                              (In Canadian Dollars)


                                                                         Year Ended
                                        Year Ended October 31            October 31
                               ---------------------------------------- -------------
                                   1993          1994         1995          1996
                               ------------- -------------------------- -------------
                                                                        (Unaudited)
Revenues:
<S>                              <C>           <C>          <C>           <C>        
  Processing ................    $25,818,000   $30,408,000  $33,100,000   $36,954,000
  Production ................     28,620,000    35,855,000   22,408,000    26,791,000
  Royalties, net ............     (5,321,000)   (6,787,000)  (3,366,000)   (3,975,000)
  Other income ..............        264,000     1,028,000      996,000       690,000
                               -------------  ------------- ------------- -------------
                                  49,381,000    60,504,000   53,138,000    60,460,000

Expenses:
  Processing ................     16,707,000    15,621,000   14,763,000    19,207,000
  Production ................      4,649,000     4,866,000    5,689,000     5,308,000
  Administration (note 7) ...      3,685,000     3,960,000    4,507,000     4,117,000
  Interest on acquisitions ..      1,280,000             -            -             -
  Interest on long-term           
   shareholders' debt .......     12,175,000    15,998,000   16,227,000    16,172,000
  Depletion and depreciation      13,408,000    14,361,000   13,754,000    14,092,000
  Amortization of deferred           
   financing costs ..........        146,000       146,000      146,000       146,000
  Foreign exchange loss .....        760,000       772,000      795,000     1,134,000
                               -------------   -----------  -----------   -----------
   ..........................     52,810,000    55,724,000   55,881,000    60,176,000
                               -------------   -----------  -----------   -----------

Earnings (loss) before taxes      (3,429,000)    4,780,000   (2,743,000)      284,000

Large corporation tax .......        262,000       274,000      308,000       332,000
                               -------------   -----------  -----------   -----------
Net earnings (loss) .........     (3,691,000)    4,506,000   (3,051,000)      (48,000)

Deficit - beginning of year .     (2,158,000)   (5,849,000)  (1,343,000)   (4,394,000)
                               -------------   ------------ ------------  ------------
Deficit - end of year .......    $(5,849,000)  $(1,343,000) $(4,394,000)  $(4,442,000)
                               =============   ============ ============  ============
 </TABLE>




                 See accompanying notes to financial statements.

                                      F-40
<PAGE>
<TABLE>
<CAPTION>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                   STATEMENTS OF CHANGES IN FINANCIAL POSITION

                              (In Canadian Dollars)


                                                                         Year Ended
                                        Year Ended October 31            October 31
                               ---------------------------------------- -------------
                                   1993          1994         1995          1996
                               ------------- -------------------------- -------------
                                                                        (Unaudited)
Operating Activities:
<S>                              <C>           <C>          <C>            <C>         
  Net earnings (loss) .......    $(3,691,000)  $4,506,000   $(3,051,000)   $   (48,000)
  Depletion and depreciation      13,408,000   14,361,000    13,754,000     14,092,000
  Amortization of deferred           
   financing costs ..........        146,000      146,000       146,000        146,000
  Foreign exchange loss .....        760,000      772,000       795,000      1,134,000
  Decrease (increase) in        
   non-cash working capital
   items ...................       6,004,000   (5,443,000)   (7,004,000)     2,176,000
                                ------------   -----------   -----------   -----------
                                  16,627,000   14,342,000     4,640,000     17,500,000

Financing Activities:
  Issuance of share capital .     17,692,00      583,000            -             -
  Increase in long-term      
   shareholders' debt .......    53,057,000    1,726,000            -             - 
                               ------------   -----------    -----------   -----------
                                 70,749,000    2,309,000            -             -

Investing Activities:
  Expenditures on capital      
   assets ...................   (49,010,000) (15,024,000)   (11,638,000)    (8,72,000)
  Decrease in deferred         
   revenue ..................    (1,473,000)        -               -             -
  (Increase) decrease in       
   non-cash working capital     (35,281,000)  (3,771,000)       (54,000)       (2,000)
                               ------------- ------------   ------------   -----------
                                (85,764,000) (18,795,000)   (11,692,000)   (8,724,000)

Increase (decrease) in cash     
  and short-term deposits ...     1,612,000   (2,144,000)    (7,052,000)    8,776,000

Cash and Short-Term Deposits:
  Beginning of year ........      8,858,000   10,470,000      8,326,000     1,274,000
                               ------------- ------------   ------------  ------------
  End of year ..............     $10,470,000   $8,326,000   $1,274,000    $10,050,000
                               ============= ============   ============  ============

</TABLE>



                 See accompanying notes to financial statements.

                                      F-41
<PAGE>



                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                          NOTES TO FINANCIAL STATEMENTS

  (Information as to October 31, 1996 and for the Year Then Ended is Unaudited)


      The Company was  incorporated  on March 9, 1990 under the Canada  Business
Corporations Act. The Company was formed to invest in gas plants,  gas gathering
systems  and  related  gas  reserves  in Canada.  Morrison  Petroleums  Ltd.,  a
shareholder, manages the Company.

1.  Summary of Significant Accounting Policies

      The  financial  statements  are  prepared  in  accordance  with  generally
accepted accounting principles in Canada.

Foreign Currency Translation

      Monetary  assets and monetary  liabilities  are translated at the exchange
rate in effect at the balance sheet date.  Gains and losses on  translation  are
recorded in the  statement of earnings,  except that gains or losses on monetary
liabilities with a fixed or  ascertainable  life are deferred and amortized over
the repayment period.

Joint Ventures

      The Company's exploration and production activities related to oil and gas
are substantially conducted in joint participation with others and, accordingly,
the  accounts  reflect  only  the  Company's   proportionate  interest  in  such
activities.

Capital Assets

      The Company follows the full cost method of accounting for exploration and
development  expenditures  wherein all costs related to the  exploration for and
the  development  of oil and gas reserves are  capitalized.  These costs include
leasehold acquisition costs, carrying charges of non-producing properties, costs
of drilling and completing wells, and oil and gas production equipment. Proceeds
received  from  the  disposal  of  properties  are  normally   credited  against
accumulated  costs  unless  this  would  result in a  significant  change in the
depletion  rate,  in which case, a gain or loss is computed and reflected in the
earnings statement.

      The Company carries its oil and gas properties at the lower of capitalized
cost and net recoverable  value.  Net  recoverable  value is future net revenues
from proven reserves plus unproven  properties at cost less impairment,  if any,
net of the  provision  for future  site  restoration.  Future net  revenues  are
determined  using unit prices and  production  costs in effect at  year-end  and
include an allowance for future  overhead  costs,  site  restoration,  financing
charges and income taxes that will be incurred in earning these revenues.

      Petroleum and natural gas properties are depleted and tangible  production
equipment  is  depreciated  using the  unit-of-production  method based upon the
estimated proven oil and gas reserves after royalties. Reserves are converted to
common units based on the approximate  equivalent energy content of each unit of
reserves,  which results in a conversion ratio of six thousand cubic feet of gas
to one barrel of oil equivalent.

      Processing  facilities are depreciated on a  straight-line  basis over the
estimated useful life of each facility.

                                      F-42
<PAGE>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)






Provision for Future Site Restoration

      Provision is made for future site  restoration  costs.  This  provision is
charged to earnings over the  estimated  life of the proven oil and gas reserves
and processing  facilities  using the unit of production  and the  straight-line
methods respectively, and is included with depletion and depreciation.

Royalties

      Crown,  freehold and  overriding  royalties  and mineral  taxes are net of
Alberta Royalty Tax Credits.

Deferred Financing Costs

      The  deferred   financing   costs  are   associated   with  obtaining  the
subscriptions  for units (see Note 2).  These costs were  amortized  evenly over
fifteen years.

2.  Formation and Unit Subscriptions

      Under the Unit Subscription  Agreement,  the investors have subscribed for
units at U.S.  $100,000 per unit  consisting of U.S.  $75,000 of debentures  and
U.S.  $25,000 of Class A shares (2,500 Class A shares at a price of U.S. $10 per
share)  in  a  3-to-1  ratio.   The  Company   received   commitments  for  unit
subscriptions  totaling U.S.  $114,700,000  (U.S.  $86,025,000 of debentures and
2,867,500  Class A shares at U.S. $10 per share).  At October 31, 1996, 1995 and
1994 98.12% of the subscriptions were paid for and debentures and shares issued.

      On September 14, 1994, the Board of Directors approved a resolution to end
any  further  acquisitions  by the  investors  and to  close  out  the  investor
obligations.

      At October 31, 1996, U.S.  $84,411,829 of debentures and U.S.  $28,137,367
Class A shares were issued and outstanding.

      Under  Amendment No. 4 to the Unit  Subscription  Agreement  dated May 15,
1995,  in 1995  the  Company  is  permitted  to  expend  all of its  funds  from
operations  after debt  servicing and all  applicable  corporate tax, on capital
enhancements,  repairs and maintenance. In 1996 and subsequent years, subject to
approval by eighty  percent of all  shareholders,  the Company is  permitted  to
expend  two-thirds  of its funds from  operations  after debt  servicing and all
applicable corporate tax on, capital enhancements, repairs and maintenance.

                                      F-43
<PAGE>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)






3.  Capital Assets

                                                 October 31
                                 -------------------------------------------
                                     1994           1995          1996
                                 -------------- ----------------------------
                                                              (unaudited)
      Oil and Gas Properties:
        Cost ...................   $42,310,000    $43,361,000   $44,963,000
        Accumulated depletion ..  (20,267,000)   (24,540,000)  (28,197,000)
                                 -------------- ----------------------------
                                   22,043,000     18,821,000    16,766,000
                                 -------------- ----------------------------

      Tangible Production
        Equipment:
        Cost ...................    7,889,000      9,402,000    10,239,000
        Accumulated depreciation   (3,523,000)    (4,450,000)   (5,283,000)
                                 -------------- ----------------------------
                                    4,366,000      4,952,000     4,956,000
                                 -------------- ----------------------------
      Processing Facilities:
        Cost ...................  118,623,000    127,696,000   133,979,000
        Accumulated depreciation  (15,600,000)   (23,374,000)  (31,844,000)
                                 -------------- ----------------------------
                                  103,023,000    104,322,000   102,135,000
                                 -------------- ----------------------------
                                 $129,432,000   $128,095,000  $123,857,000
                                 ============== ============================

      During 1996 no acquisition  fees (1995 - $0, 1994 - $27,000) were included
in the cost of capital  assets.  A  provision  for future  site  restoration  of
$1,132,347  (1995 - $779,000,  1994 - $740,000,  1993 - $644,935)  was  expensed
during 1996.

4.  Deferred Financing Costs

                                              October 31
                                 --------------------------------------
                                     1994         1995        1996
                                 --------------------------------------
                                                           (unaudited)
      Deferred financing costs     $2,187,000   $2,187,000   $2,187,000
      Accumulated amortization       (559,000)    (705,000)    (851,000)
                                 --------------------------------------
                                   $1,628,000   $1,482,000   $1,336,000
                                 ======================================

5.    Long-Term Shareholders' Debt

      The debentures are payable in U.S.  dollars fifteen years from the date of
issue which is in the period 2005 to 2008. The  debentures  bear interest at 14%
per annum payable on a quarterly basis.

      The Company is entitled,  if the after-tax  cash flow is not sufficient to
make  interest  payments,  to satisfy  interest  payments by issuing  additional
debentures  valued at an amount equal to 100% of the principal  amount  thereof,
and Class A shares at $10.00 per share.

      The debentures are held by the Class A shareholders.

                                      F-44
<PAGE>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)






6.  Share Capital

Authorized

      Unlimited Class A voting common shares.

      Unlimited Class B non-voting common shares.

      The Class B shares are not entitled to dividends.  Upon payout, as defined
in the  Company's  Articles,  each Class B share may be  converted  to a Class A
share and the  Class B  shareholders  have a call  option  to  purchase,  in the
aggregate,  25% of the then  outstanding  debentures  at a price of U.S. $10 for
each U.S. $75,000 principal amount of debentures.

      Class B  shares  are  issued  equal to 33% of the  Class A  shares  issued
pursuant  to  subscription  calls.  Class B shares are issued for U.S.  $.01 per
share.

Issued for Cash

                                     Class A                  Class B
                           ---------------------------------------------------

Inception to October 31,    
  1993                       2,770,599     $33,619,000   923,530   $11,000
Issued during 1994              43,139        582,000     14,380        -
                           ------------- -------------  --------   --------

Balance at October 31,
  1994, 1995 and 1996        
  (unaudited)                2,813,738     $34,201,000   937,910   $11,000
                           ============= =============  ========   ========

7.  Administration

      Pursuant to the  administration and management  agreements,  the following
expenses have been recorded:

                                      Year Ended October 31
                        ---------------------------------------------------
                            1993         1994        1995         1996
                        -------------------------------------- ------------

                                                               (unaudited)
Management fees .......   $2,105,000   $2,384,000   $2,613,000   $2,531,000
Administration fees ...    1,394,000    1,959,000    1,628,000    1,632,000
                        ------------  -----------  ----------- ------------
                           3,499,000    4,343,000    4,241,000    4,163,000

Directors' fees and         
  expenses ............       38,000       63,000      311,000      113,000
General corporate          
  expenses ............      148,000      550,000      400,000      299,000
                         -----------  -----------  -----------  -----------
                           3,685,000    4,956,000    4,952,000    4,575,000
  
Recoveries ............            -     (996,000)    (445,000)    (458,000)
                        ------------   -----------  -----------  -----------
                          $3,685,000   $3,960,000   $4,507,000   $4,117,000
                        ============   ===========  ===========  ===========

                                      F-45
<PAGE>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)






      General  corporate   expenses  include   third-party   professional  fees,
insurance and other items of a general corporate nature.

8.  Income Taxes

      At October 31, 1996,  the Company has estimated  deductions for income tax
purposes  which  exceed the  related  book value by  $3,400,000,  the  potential
benefit of which have not been  recognized in these  financial  statements.  For
income tax purposes,  the Company has reported non-capital loss carryforwards of
$50,350,000 at October 31, 1996, which expire as follows: 1997 - $415,000;  1998
- - $1,658,000; 1999 - $12,543,000;  2000 - $11,991,000; 2001 - $9,061,000; 2002 -
$11,247,000; 2003 - $3,435,000.

9.  Related Party Transactions

      At times, the Company enters into agreements and  transactions  related to
gas plants and gas  reserves  with  Morrison  Petroleums  Ltd.  and Canadian Gas
Gathering Systems II, Inc. These transactions are carried out in accordance with
industry standard terms.

      During  1995,  a  consulting  fee of  $158,000  was paid to a founder  and
director.

10.  Commitments

      The Company has a Management  Agreement with Morrison  Petroleums  Ltd. to
provide  services  with  respect to  evaluation,  acquisition,  development  and
construction of projects and Consulting Agreements with two other founders.  The
Agreements  are for ten years and provide for annual  management  and consulting
fees to be paid to the three  parties  totaling 1.5% of the original cost of all
projects, subject to certain adjustments as provided in the Agreements.

      The Company has an Administration  Agreement with Morrison Petroleums Ltd.
to provide  administrative  functions to the Company.  This Agreement is for ten
years and provides for an annual  administration  fee of 5% of the net operating
income as defined in the agreement.

      Under these  agreements,  fees were incurred and accrue to the founders as
follows:

                                     Morrison       Gas      B.
                                    Petroleums   Systems     Feshbach
                                       Ltd.         III        & Sons
                                   ------------- ----------- -----------

      Year ended October 31, 1993    $3,187,000    $496,000    $192,000
      Year ended October 31, 1994     3,653,000     443,000     247,000
      Year ended October 31, 1995     3,485,000     485,000     271,000
      Year ended October 31, 1996    
        (unaudited).............      3,363,000     513,000     287,000


                                      F-46
<PAGE>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)






      Of the above fees which  accrued to the founders,  the  following  amounts
were outstanding at the periods ended as follows:

                                  Morrison       Gas      B.
                                 Petroleums   Systems     Feshbach
                                    Ltd.         III        & Sons
                                 ------------ ----------- -----------

      Year ended October 31,       
        1994 ...................   $854,000      $92,000     $53,000
      Year ended October 31,       
        1995 ...................    850,000       88,000      40,000
      Year ended October 31,       
        1996 ...................    616,000      131,000       1,000

      In addition, under the Administration Agreement, where Morrison Petroleums
Ltd is the operator of a gas system, capital and operating overhead is recovered
from the Company by Morrison Petroleums Ltd. following guidelines  prescribed by
the Petroleum Accountants Society of Canada,  Accounting Procedure at negotiated
rates.

11.  Subsequent Events

      Subsequent  to  October  31,  1996  the  Company  became  a  wholly  owned
subsidiary of Abraxas Petroleum  Corporation.  Prior to the change in ownership,
the Company sold its interest in the Nevis gas plant and related  facilities  to
Morrison Petroleums, Ltd for a consideration of $120,000,000, converted its U.S.
dollar denominated debt to Canadian dollars and repaid the debt.

12. Differences Between Canadian and United States Generally Accepted Accounting
Principles

      These financial  statements have been prepared in accordance with Canadian
generally accepted accounting principles ("Canadian GAAP") which, in the case of
the  Company,   conforms  with  United  States  generally  accepted   accounting
principles ("US GAAP") in all material respects except as follows:

      (a)In accordance  with U.S.  GAAP,  exchange  gains and losses  arising on
         translation of long-term monetary  liabilities,  unless designated as a
         hedge,  are  included  in income  currently  instead  of  deferred  and
         amortized over the lives of such long term liabilities.

      (b)The Company has applied  Statement  of Financial  Accounting  Standards
         Number  109  "Accounting  for  Income  Taxes"  ("SFAS  109")  effective
         November 1, 1992.  SFAS 109  requires the Company to account for income
         taxes using the  liability  method for US GAAP  purposes.  There was no
         cumulative  effect or effect on  current  results as a  consequence  of
         adopting SFAS 109.


                                      F-47
<PAGE>


                    CGGS CANADIAN GAS GATHERING SYSTEMS INC.

                    NOTES TO FINANCIAL STATEMENTS (CONTINUED)





      The impact of these  changes on the Company's  financial  statements is as
follows:

Statement of Earnings

                                        Year Ended October 31
                        ------------------------------------------------------
                            1993          1994          1995         1996
                        ------------- ------------- --------------------------

                                                                   (unaudited)
Net earnings (loss) as    
  reported ............ $(3,691,000)  $4,506,000    $(3,051,000) $(1,384,000)
Foreign currency        
  translation .........  (4,409,000)  (1,829,000)     1,893,000    1,024,000
                        ------------  -----------   ------------ ------------
Net earnings (loss) in
  accordance with U.S.    
  GAAP ................$ (8,100,000)  $2,677,000    $(1,158,000) $  (360,000)
                        ============  ==========    ============ ============

                                                 Increase
                                 As Reported    (Decrease)    U.S. GAAP
                                 ------------- ------------- -------------

      October 31, 1994
      Deferred foreign exchange    
        loss ...................  $9,775,000   $(9,775,000)  $        -
      Deficit ..................  (1,343,000)    9,776,000    (11,119,000)

      October 31, 1995
      Deferred foreign exchange    
        loss ...................   7,882,000    (7,882,000)             -
      Deficit ..................  (4,394,000)    7,883,000    (12,277,000)

      October 31, 1996
      Deferred foreign exchange    
        loss ...................   6,858,000    (6,858,000)             -
      Deficit ..................  (5,778,000)    6,859,000    (12,637,000)

13. Changes in non-cash working capital components

                                       Years Ended October 31
                        ------------------------------------------------------
                            1993          1994          1995         1996
                        ------------- ------------- --------------------------
                                                                 (unaudited)
Decrease (increase) in
   non-cash working
  capital
Operating:
  Accounts receivable   $  (5,558,000) $  (562,000)  $(1,231,000)   $ (690,000)
  Accounts payable         11,562,000   (4,881,000)   (5,773,000)    2,866,000
                          ------------   ------------  ------------  -----------
                        $   6,004,000   $(5,443,000)  $(7,004,000)   $2,176,000
                          ============   ============  ============  ===========

Investing:
  Accounts payable       $(38,023,000)  $     --      $     --     $        --
  Debenture interest
  payable to
  shareholders              2,742,000    (3,771,000)      (54,000)       (2,000)
                        -------------   ------------  ------------ -------------
                         $(35,281,000)  $(3,771,000)  $   (54,000) $     (2,000)
                        =============   ============  ============ =============

                                      F-48
<PAGE>










                          Independent Auditors' Report



To the Board of Directors of
  Enserch Exploration, Inc.

      We have  audited  the  accompanying  statements  of  revenues  and  direct
operating  expenses of Enserch  Exploration,  Inc.'s Wamsutter Area Package (the
"Package")  (see Note 1) to be sold to  Abraxas  Petroleum  Corporation  for the
years ended December 31, 1995,  1994, and 1993.  These financial  statements are
the responsibility of the management of Enserch  Exploration,  Inc., as operator
of the  properties.  Our  responsibility  is to  express  an  opinion  on  these
financial statements based on our audits.

      We conducted our audits in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

      The  accompanying  statements  of revenues and direct  operating  expenses
reflect the revenues and direct operating  expenses  attributable to the Package
as described in Note 1 to the financial  statements and are not intended to be a
complete presentation of the revenues and expenses of the Package.

      In our opinion,  the accompanying  financial statements present fairly, in
all material respects, the revenues and direct operating expenses of the Package
as described in Note 1 for the years ended December 31, 1995, 1994, and 1993, in
accordance with generally accepted accounting principles.



DELOITTE & TOUCHE LLP

Dallas, Texas
June 26, 1996



<PAGE>


               ENSERCH EXPLORATION, INC.'S WAMSUTTER AREA PACKAGE

              STATEMENTS OF REVENUES AND DIRECT OPERATING EXPENSES


                                                               Nine Months Ended
                                    Year Ended December 31        September 30
                               ------------------------------- -----------------
                                   1993     1994       1995      1995     1996
                                 -------  --------   --------  -------  --------
                                 (in thousands)                  (Unaudited)
Revenues:
  Oil, gas and related
    product sales ............   $10,655   $10,171   $ 7,542   $ 5,262   $ 7,280

Direct operating expenses:
  Lease operating expenses ...       431       640     1,029       894       776
    Severance and
   property taxes ............     1,108     1,291     1,113       778     1,068
                                 -------   -------   -------   -------   -------
                                   1,539     1,931     2,142     1,672     1,844
                                 -------   -------   -------   -------   -------

Excess of revenues over
  direct operating
  expenses ...................   $ 9,116   $ 8,240   $ 5,400   $ 3,590   $ 5,436
                                 =======   =======   =======   =======   =======




        The accompanying notes are an integral part of these statements.

                                      F-50

<PAGE>


               ENSERCH EXPLORATION, INC.'S WAMSUTTER AREA PACKAGE

                       NOTES TO STATEMENTS OF REVENUES AND
                            DIRECT OPERATING EXPENSES


1.  The Properties

      The  accompanying  statements  represent the revenues and direct operating
expenses attributable to the net interest in Enserch Exploration, Inc.'s ("EEX")
Wamsutter Area Package  producing wells and certain  non-producing  leases to be
sold to Abraxas Petroleum Corporation ("Abraxas"). The properties are located in
Sweetwater  and Canton County,  Wyoming.  EEX acquired the properties on June 8,
1995 when it purchased all of the capital stock of Dalen Corporation.  Effective
January 1, 1996, Dalen Corporation was merged into EEX.

      Historical financial statements reflecting financial position,  results of
operations and cash flows required by generally accepted  accounting  principles
are not  presented,  as such  information  is neither  readily  available  on an
individual property basis nor meaningful for the properties acquired because the
entire   acquisition   cost  is  being  assigned  to  oil  and  gas  properties.
Accordingly,  these  statements  of revenues and direct  operating  expenses are
presented  in lieu of the  financial  statements  required  under  Rule  3-05 of
Securities and Exchange Commission Regulation S-X.

      The  accompanying  statements  of revenues and direct  operating  expenses
represent EEX's net working interest in the properties to be acquired by Abraxas
and are  presented on the full cost accrual basis of  accounting.  Depreciation,
depletion  and  amortization,  allocated  general  and  administrative  expense,
interest  expense and income,  and income taxes have been  excluded  because the
property  interests  acquired  represent  only a portion of a  business  and the
expenses incurred are not necessarily  indicative of the expenses to be incurred
by Abraxas.

2.  Contingent Liabilities

      Given the  nature of the  properties  acquired  and as  stipulated  in the
purchase  agreement,  Abraxas  is  subject  to loss  contingencies  pursuant  to
existing or expected  environmental laws,  regulations,  and losses covering the
acquired properties.

3.  Oil and Gas Reserves (Unaudited)

      The following table of estimated proved and proved  developed  reserves of
oil and gas related to the Wamsutter  Area Package  properties has been prepared
utilizing  estimates of period-end  reserve  quantities  provided by independent
petroleum consultants.

                                  Oil             Gas
                               (Bbl) (a)         (Mcf)
                              -------------  -------------

      At January 1, 1993 ....    547,125      43,339,881
        Production ..........    (65,283)     (4,498,193)
        Other changes, net ..     28,903         553,355
                              -------------  -------------
      At January 1, 1994 ....    510,745      39,395,043
        Production ..........   (288,763)     (4,712,683)
        Other changes, net ..  1,915,650       1,298,888
                              -------------  -------------
      At January 1, 1995 ....  2,137,632      35,981,248
        Production ..........   (303,076)     (4,285,734)
        Other changes, net ..  l,390,493       8,838,026
                              =============  =============
      At January 1, 1996 ....  3,225,049      40,533,540
                              =============  =============

                                      F-51
<PAGE>


               ENSERCH EXPLORATION, INC.'S WAMSUTTER AREA PACKAGE

                       NOTES TO STATEMENTS OF REVENUES AND
                            DIRECT OPERATING EXPENSES


                                  Oil           Gas
                                 (Bbl)         (Mcf)
                              ------------- -------------
      Proved Developed
        Reserves:
      At January 1, 1993 ....     547,125    43,339,881
      At January 1, 1994 ....     510,745    39,395,043
      At January 1, 1995 ....   2,137,632    35,981,248
      At January 1, 1996 ....   2,942,115    36,559,004
- ------------------

(a)   Includes  condensate  and natural gas liquids  attributable  to  leasehold
      interests of  2,655,476  Bbls for January 1, 1996 and  1,669,664  Bbls for
      January 1, 1995.  Prior to l994, gas was not processed to extract  natural
      gas liquids.

4. Standardized Measure (Unaudited)

      Discounted  future net cash flows  relating  to proved gas and oil reserve
quantities  (unaudited)  have been prepared using  estimated  future  production
rates and associated production and development costs.  Continuation of economic
conditions  existing  at  the  balance  sheet  date  was  assumed.  Accordingly,
estimated  future net cash flows were computed by applying  prices and contracts
in effect at period end to  estimated  future  production  of proved gas and oil
reserve,   estimating  future   expenditures  to  develop  proved  reserves  and
estimating  costs to produce the proved  reserves based on average costs for the
period.  Average  prices used in the  computations  were: Gas (per Mcf) $2.08 in
1995, $1.45 in 1994 and $2.40 in 1993; Oil (per barrel) $11.17 in 1995, $7.22 in
1994 and $13.52 in 1993.

      Because reserve estimates are imprecise and changes in the other variables
are unpredictable,  the standardized measure should be interpreted as indicative
of the order of magnitude only and not as precise amounts.

                                           1995        1994        1993
                                       -------------------------------------

      Standardized Measure (in
        thousands):
        Future cash inflows ........     $ 120,278   $  67,597   $ 101,445
        Future production and              (25,971)    (17,121)    (19,710)
          development costs ........
        Future income-tax expense ..       (16,137)    (14,873)    (25,525)
                                       -------------------------------------
        Future net cash flows ......        78,170      35,603      56,210
        Less 10% annual discount ...        35,565      14,095      23,727
                                       =====================================
        Standardized measure of
          discounted future net          
          cash flows ...............     $  42,605   $  21,508   $  32,483
                                       =====================================
      Change in Standardized Measure
        (in thousands):
        Sales and transfers of gas
          and oil produced, net of       
          production costs .........     $  (5,400)  $  (8,240)  $  (9,116)
        Changes in prices, net of
          production and future             14,280     (21,828)      4,903
          development costs ........
        Accretion of discount ......         2,151       3,248       3,326
        Net change in income taxes .           190       5,765         240
        Additions, revisions and             9,876      10,080        (125)
          offer changes ............
                                       =====================================
            Total ..................     $  21,097   $ (10,975)  $    (772)
                                       =====================================

                                      F-52
<PAGE>










                         Report of Independent Auditors



Board of Directors
Abraxas Petroleum Corporation

We have audited the accompanying statements of combined oil and gas revenues and
direct operating  expenses of the Certain  Overriding  Royalty  Interests in the
Portilla Field Acquired by Abraxas Petroleum Corporation (Abraxas) for the years
ended December 31, 1994 and 1995.  These  statements are the  responsibility  of
Abraxas'  management.  Our  responsibility  is to  express  an  opinion  on  the
statements based on our audits.

   
We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance  about  whether the  statements  of  combined  oil and gas
revenues and direct  operating  expenses are free of material  misstatement.  An
audit includes examining,  on a test basis,  evidence supporting the amounts and
disclosures  in the  statements  of  combined  oil and gas  revenues  and direct
operating  expenses.  An audit also  includes  assessing the basis of accounting
used and  significant  estimates made by  management,  as well as evaluating the
overall  presentation  of the  statements.  We believe that our audits provide a
reasonable basis for our opinion.
    

The  accompanying  statements  of  combined  oil and  gas  revenues  and  direct
operating expenses were prepared for the purpose of complying with the rules and
regulations of the  Securities  and Exchange  Commission as described in Note 1,
are not  intended  to be a complete  presentation  of the  combined  oil and gas
revenues and expenses of Certain  Overriding  Royalty  Interests in the Portilla
Field Acquired by Abraxas.

In our opinion, the statements referred to above present fairly, in all material
respects,  the combined oil and gas  revenues and direct  operating  expenses of
Certain  Overriding  Royalty Interests in the Portilla Field Acquired by Abraxas
for the years ended  December  31, 1994 and 1995 in  conformity  with  generally
accepted accounting principles.




                                                ERNST & YOUNG LLP
San Antonio, Texas
August 30, 1996

                                      F-53
<PAGE>


           CERTAIN OVERRIDING ROYALTY INTERESTS IN THE PORTILLA FIELD
                    ACQUIRED BY ABRAXAS PETROLEUM CORPORATION

                   STATEMENTS OF COMBINED OIL AND GAS REVENUES
                          AND DIRECT OPERATING EXPENSES


                                                            Nine Months Ended
                               Year Ended December 31          September 30
                             -------------------------- ------------------------
                                  1994        1995          1995         1996
                             -------------------------- ------------------------
                                                                (Unaudited)

Oil and gas revenues          $3,529,234   $3,675,596    $2,608,169   $2,821,855
  
Direct operating expenses:
  Production taxes               908,421      835,092       590,019      621,656
                              ----------  ------------   -----------   ---------

Oil and gas revenues in
  excess of   direct
  operating  expenses         $2,620,813   $2,840,504    $2,018,150   $2,200,199
                              ==========   ==========    ==========   ==========




                             See accompanying notes.

                                      F-54
<PAGE>


           CERTAIN OVERRIDING ROYALTY INTERESTS IN THE PORTILLA FIELD
                    ACQUIRED BY ABRAXAS PETROLEUM CORPORATION

              NOTES TO STATEMENTS OF COMBINED OIL AND GAS REVENUES
                          AND DIRECT OPERATING EXPENSES

                     Years Ended December 31, 1994 and 1995
           (Information as to the Nine Months Ended September 30, 1995
                             and 1996 is Unaudited)


1.  Basis of Presentation

      The  accompanying  statement  of combined  oil and gas revenues and direct
operating  expenses  represents  the results from certain oil and gas  producing
properties  located  in the  Portilla  Field,  San  Patricia  County,  Texas  --
(Properties)  which were previously  owned by the Commingled  Pension Trust Fund
(Petroleum  II) (the Pension Fund) which were  acquired in  connection  with the
acquisition by Abraxas  Petroleum  Corporation  (Abraxas).  Abraxas acquired the
remaining 75% partnership  interest in Portilla-1996,  L.P., the limited partner
of which  acquired the above  interests  from the Pension Fund on March 21, 1996
and contributed such interest to the Partnership.

      Full  historical  financial  statements   reflecting  financial  position,
results of operations,  and cash flows required by generally accepted accounting
principles are not presented, as such information is not readily available on an
individual property basis nor meaningful for the properties acquired because the
entire   acquisition   cost  is  being  assigned  to  oil  and  gas  properties.
Accordingly,  these  statements  of  combined  oil and gas  revenues  and direct
operating  expenses are presented in lieu of the financial  statements  required
under Rule 3-05 of Regulation S-X of the Securities and Exchange Commission.

      The  accompanying  statements  of combined oil and gas revenues and direct
operating  expenses  represent  the  net  overriding  royalty  interests  in the
Properties  to be acquired by Abraxas and are  presented on the accrual basis of
accounting. Depreciation, depletion and amortization, general and administrative
expenses,  interest  expense,  and  federal  and state  income  taxes  have been
excluded because the property  interests  acquired represent only a portion of a
business  and the  expenses  incurred  are  not  necessarily  indicative  of the
expenses to be incurred by Abraxas.

      The  unaudited  statements  of combined  oil and gas  revenues  and direct
operating  expenses  for the  nine  months  ended  September  30,  1995 and 1996
include, in the opinion of management,  all material adjustments  (consisting of
only  normal  recurring  adjustments)  necessary  for a fair  presentation.  The
results  of the nine  months  ended  September  30,  1996,  are not  necessarily
indicative of the results to be expected for the full year.

                                      F-55

<PAGE>


           CERTAIN OVERRIDING ROYALTY INTERESTS IN THE PORTILLA FIELD
                    ACQUIRED BY ABRAXAS PETROLEUM CORPORATION

              NOTES TO STATEMENTS OF COMBINED OIL AND GAS REVENUES
                    AND DIRECT OPERATING EXPENSES (CONTINUED)





2.  Supplemental  Information  Relating  to Oil  and  Gas  Producing  Activities
(Unaudited)

      The following  table presents the estimate of the net proved crude oil and
natural gas quantities  related to the interests in the Properties  acquired and
have been prepared  utilizing the  estimates of reserve  quantities  prepared by
independent petroleum reserve engineers.

                                               Liquid         Natural
                                            Hydrocarbons        Gas
                                            -------------- --------------
                                              (Barrels)        (Mcf)
Proved developed and undeveloped reserves:
  Balance at December 31, 1993 ...........     2,060,000      7,309,000
   Revisions of previous estimates .......       240,000     (1,374,000)
   Production ............................      (207,000)      (256,000)
                                            -------------- --------------
  Balance at December 31, 1994 ...........     2,093,000      5,679,000
   Revisions of previous estimates .......      (245,000)    (2,290,000)
   Production ............................      (176,000)      (497,000)
   Other changes, net ....................       306,000        681,000
                                            -------------- --------------
  Balance at December 31, 1995 ...........     1,978,000      3,573,000
   Revisions of previous estimates .......      (417,000)      (974,000)
   Production ............................       (81,000)      (209,000)
   Other changes, net ....................       208,000         10,000
                                            -------------- --------------

  Balance at June 30, 1996 ...............     1,688,000      2,400,000
                                            ============== ==============

Proved developed reserves:
  December 31, 1994 ......................     1,782,000      4,727,000
  December 31, 1995 ......................     1,722,000      3,378,000
  June 30, 1996 ..........................     1,677,000      2,331,000

All of the above reserves are located in the United States.


                                      F-56
<PAGE>


           CERTAIN OVERRIDING ROYALTY INTERESTS IN THE PORTILLA FIELD
                    ACQUIRED BY ABRAXAS PETROLEUM CORPORATION

              NOTES TO STATEMENTS OF COMBINED OIL AND GAS REVENUES
                    AND DIRECT OPERATING EXPENSES (CONTINUED)





Standardized  Measure of Discounted Future Net Cash Flows Relating to Proved Oil
and Gas Reserves

      The following  disclosures  concerning the standardized  measure of future
cash flows from proved  crude oil and  natural gas  reserves  are  presented  in
accordance  with  Statement  of  Financial  Accounting  Standards  No.  69.  The
standardized  measure does not purport to represent the fair market value of the
Properties'  proved  crude oil and  natural  gas  reserves.  An estimate of fair
market value would also take into account,  among other factors, the recovery of
reserves not  classified  as proved,  anticipated  future  changes in prices and
costs and a discount factor more  representative  of the time value of money and
the risks inherent in reserve estimates.

      Under the  standardized  measure,  future cash inflows  were  estimated by
applying  prices at December 31, 1995 and June 30, 1996 to the estimated  future
production of period-end  proved  reserves.  Future cash inflows were reduced by
estimated future  production and development  costs based on period-end costs to
determine  pre-tax cash inflows.  The  Properties  are not, nor is the Owner,  a
separate tax paying entity. Accordingly,  the standardized measure of discounted
future net cash flows from proved  reserves is  presented  before  deduction  of
federal income taxes.

      Future net cash inflows were  discounted  using a 10% annual discount rate
to arrive at the Standardized Measure.


                                      F-57
<PAGE>


           CERTAIN OVERRIDING ROYALTY INTERESTS IN THE PORTILLA FIELD
                    ACQUIRED BY ABRAXAS PETROLEUM CORPORATION

              NOTES TO STATEMENTS OF COMBINED OIL AND GAS REVENUES
                    AND DIRECT OPERATING EXPENSES (CONTINUED)





      Set forth below is the Standardized Measure relating to proved oil and gas
reserves for December 31, 1995 and June 30, 1996:

                                        December 31            June 30
                                 ---------------------------
                                     1994          1995          1996
                                 ------------- ------------- -------------

   Standardized Measure:
     Future cash inflows .....     $40,963,000   $43,052,000   $38,232,000
     Future production and
      development costs ......      12,078,000    13,490,000    12,268,000
                                 ------------- ------------- -------------
                                    28,885,000    29,562,000    25,964,000
     Discount ................     (11,498,000)  (10,622,000)  (11,703,000)
                                 ------------- ------------- -------------
   Discounted future net cash
     flows before income           
     taxes ...................     $17,387,000   $18,940,000   $14,261,000
                                 ============= ============= =============

   Change in Standardized Measure (in thousands):
      Standardized Measure,
      beginning of period ....     $11,427,000   $17,387,000   $18,940,000
         Sales and transfers
          of gas and oil
          produced, net of        
          production costs ...      (2,621,000)   (2,841,000)   (1,482,000)
         Changes in prices,
          net of production
          and future               
          development costs ..       6,639,000     2,661,000       627,000
         Revisions of
          previous quantity           
          estimates ..........          63,000    (3,168,000)   (4,001,000)
         Accretion of              
          discount ..........        1,854,000     1,739,000       947,000
         Additions,
          revisions, and              
          other changes ......          25,000     3,162,000      (770,000)
                                 ------------- ------------- -------------
      Standardized Measure,
        end of period ........     $17,387,000   $18,940,000   $14,261,000
                                 ============= ============= =============

                                      F-58

<PAGE>













                         Report of Independent Auditors



The Board of Directors and Shareholders
Canadian Abraxas Petroleum Limited (a Canadian corporation)

      We have  audited  the  accompanying  balance  sheet  of  Canadian  Abraxas
Petroleum  Limited  as  of  September  30,  1996.  This  balance  sheet  is  the
responsibility of the Company's management.  Our responsibility is to express an
opinion on this balance sheet based on our audit.

      We conducted  our audit in accordance  with  generally  accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable  assurance about whether the financial  statement is free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial  statement.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.

      In our opinion,  the balance sheet referred to above presents  fairly,  in
all material  respects,  the financial  position of Canadian  Abraxas  Petroleum
Limited at September 30, 1996, in conformity with generally accepted  accounting
principles.



                                          ERNST & YOUNG LLP

San Antonio, Texas
October 7, 1996


                                      F-59
<PAGE>


                       CANADIAN ABRAXAS PETROLEUM LIMITED

                                  BALANCE SHEET

                               September 30, 1996


                                     ASSETS

Subscription receivable ........................                 $    1
                                                               ==========
   Total assets ................................                 $    1
                                                               ==========

                      LIABILITIES AND SHAREHOLDER'S EQUITY

Shareholder's equity:
  Common stock, no par value; unlimited number
   of shares authorized, issued and outstanding                  $    1
   -0- shares (Subscribed 1 share)..............
  Preferred stock, no par value; unlimited
   number of shares authorized, issued and                            -
   outstanding -0- shares ......................
                                                               ==========
     Total liabilities and shareholder's equity ..............   $    1
                                                               ==========



                             See accompanying notes.


                                      F-60
<PAGE>


                       CANADIAN ABRAXAS PETROLEUM LIMITED

   
                             NOTES TO BALANCE SHEET
    

                               September 30, 1996


   
1. Organization and Operations
    


      Canadian  Abraxas  Petroleum  Limited,  a Canadian  Corporation  (Canadian
Abraxas),  was  capitalized by Abraxas  Petroleum  Corporation for the principal
purpose of acquiring 100% of the outstanding  capital stock of CGGS Canadian Gas
Gathering Systems,  Inc. (CGGS), after the consummation of the sale of the Nevis
Plant. CGGS owns producing properties in western Canada, consisting primarily of
natural gas reserves,  natural gas gathering systems, and processing facilities.
Canadian  Abraxas has  conducted  no business  and has no employees or operating
history as of September 30, 1996. Due to the absence of business  activity as of
September 30, 1996, no statement of operations or cash flows is presented.

   
2.    Subsequent Events (unaudited)

      On November 14, 1996,  Abraxas Petroleum  Corporation,  through its wholly
owned  subsidiary,  Canadian  Abraxas,  closed  the  acquisition  of CGGS with a
portion of the proceeds  from the issuance of  $215,000,000  of Senior Notes due
2004 (Notes). Abraxas Petroleum Corporation and Canadian Abraxas are jointly and
severally  liable for all  obligations  under the Notes.  In connection with the
close of the transaction, Canadian Abraxas incurred a liability of approximately
$82,000,000 of the $215,000,000 liability. The Notes are redeemable, in whole or
in part, at the option of the Company and Abraxas  Petroleum  Corporation  on or
after  November 1, 2000, and any time prior to November 1, 1999, the Company and
Abraxas  Petroleum  Corporation may redeem up to 35% of the aggregate  principal
amount of the Notes with cash proceeds of equity offerings at a redemption price
of 111.5% of the  aggregate  principal  amount of the Notes to be redeemed.  The
terms of the  Indenture  related  to the Notes  provide  for  certain  financial
covenants which may limit the ability of the Company to incur  additional  debt.
Additionally,  in  connection  with  the  close  of the  transaction,  CGGS  was
immediately merged with and into Canadian Abraxas,  and Canadian Abraxas, as the
surviving  entity,  used  the  net  proceeds  from  the  sale of the  Nevis  gas
processing plant to retire all of the outstanding debentures of CGGS.
    


                                      F-61

<PAGE>





No person is  authorized  in  connection
with any offer  made  hereby to give any
information     or    to    make     any
representation  not  contained  in  this
Prospectus   in   connection   with  the
offering  made  hereby  and, if given or
made, such information or representation
must not be relied  upon as having  been
authorized   by   the   Issuers.    This
Prospectus  does not constitute an offer
to sell, or a  solicitation  of an offer
to  purchase,   any  securities  in  any
jurisdiction  in which, or to any person
to whom,  it is  unlawful  to make  such
offer  or   solicitation.   Neither  the
delivery  of  this   Prospectus  or  the
accompanying  Letter of  Transmittal  or
both   together   nor  any  exchange  of
securities made hereunder  shall,  under
any circumstances,  create any inference         ABRAXAS PETROLEUM
that  there  has not been any  change in            CORPORATION
the  affairs  of the  Issuers  since the         
date hereof.
 
 -------------------------                       CANADIAN ABRAXAS               
                                                 PETROLEUM LIMITED
           TABLE OF CONTENTS
                                Page

   
Summary............................5
Risk Factors......................19
Purpose of the Exchange Offer.....11
Resale of the Exchange Note.......27
Plan of Distribution..............27
The Exchange Offer................28
Exchange Agent....................34
Use of Proceeds...................35
Capitalization....................36
Pro Forma Financial Information...37
Selected Consolidated Financial
 Information..................... 45              Offer to Exchange
Management's Discussion and               11.5% Senior Notes Due 2004, Series B
 Analysis of Financial Condition              for any and all Outstanding
 and Resultsof Operations... .....47      11.5% Senior Notes due 2004, Series A
Business..........................54
Management........................74
Executive Compensation............77
Securities Holdings of Principal
 Stockholders Directors and
 Officers.........................80
Description of the Notes..........83
Description of Capital Stock.....111
Certain United States and Canadian
  Income Tax Considerations......118
Transactions with Related Parties123
Book-Entry; Delivery and Form....123
Available Information............125
Enforceability of Civil
 Liabilities Against Foreign
 Persons.........................125
Legal Matters....................126
Experts..........................126
Glossary of Terms................127
    
Index to Consolidated
 Financial Statements............F-1

   
Until  __________,  1997 (25 days  after
the date of this Prospectus) all dealers             [LOGO]
effecting transactions in the registered
securities, whether or not participating
in this distribution, may be required to
deliver   a   Prospectus.   This  is  in
addition to the obligation of dealers to
deliver  a  prospectus  when  acting  as
underwriters  and with  respect to their
unsold allotments or subscriptions.
    
                                                  
   
                                                Prospectus
                                                                 , 1997
    






================================================================================

<PAGE>

                                                  PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS


Item 20.     Indemnification of Directors and Officers

      Abraxas' Articles of Incorporation contain a provision that eliminates the
personal  monetary  liability  of  directors  and  officers  to Abraxas  and its
stockholders for a breach of fiduciary  duties to the extent  currently  allowed
under the Nevada General  Corporation Law (the "Nevada Statute").  In respect of
Canadian Abraxas,  the Canada Business  Corporation Act ("CBCA") does not permit
any such  limitations  of a  director's  liability.  If a director or officer of
Abraxas  were  to  breach  his  fiduciary   duties,   neither  Abraxas  nor  its
stockholders  could  recover  monetary  damages,  and the only  course of action
available  to Abraxas'  stockholders  would be  equitable  remedies,  such as an
action to enjoin or rescind a transaction  involving a breach of fiduciary duty.
To the extent  certain  claims  against  directors  or  officers  are limited to
equitable  remedies,  this provision of Abraxas'  Articles of Incorporation  may
reduce the likelihood of derivative  litigation and may discourage  stockholders
or  management  from  initiating  litigation  against  directors or officers for
breach  of  their  duty of care.  Additionally,  equitable  remedies  may not be
effective in many  situations.  If a stockholder's  only remedy is to enjoin the
completion of the Board of Director's  action,  this remedy would be ineffective
if the stockholder did not become aware of a transaction or event until after it
had been completed.  In such a situation,  it is possible that the  stockholders
and the  Company  would  have no  effective  remedy  against  the  directors  or
officers.

      Liability  for  monetary  damages  has not  been  eliminated  for  acts or
omissions which involve intentional misconduct,  fraud or a knowing violation of
law or payment of an improper  dividend in  violation  of section  78.300 of the
Nevada  Statute.  The  limitation of liability  also does not eliminate or limit
director liability arising in connection with causes of action brought under the
Federal securities laws.

      The Nevada  Statute  permits a corporation to indemnify  certain  persons,
including officers and directors, who are (or are threatened to be made) parties
against  all  expenses  (including  attorneys'  fees)  actually  and  reasonably
incurred by, or imposed upon,  him in  connection  with the defense by reason of
his being or having  been a director or officer if he acted in good faith and in
a manner  which  he  reasonably  believed  to be in or not  opposed  to the best
interests  of the  corporation  and,  with  respect  to any  criminal  action or
proceeding,  had no reasonable cause to believe his conduct was unlawful, except
where he has been  adjudged  by a court of  competent  jurisdiction  (and  after
exhaustion  of all  appeals)  to be  liable  for  gross  negligence  or  willful
misconduct  in  the   performance  of  duty.  The  Bylaws  of  Abraxas   provide
indemnification to the same extent allowed pursuant to the foregoing  provisions
of the Nevada Statute.

      Nevada  corporations  also are  authorized to obtain  insurance to protect
officers and directors from certain liabilities,  including  liabilities against
which  the  corporation  cannot  indemnify  its  directors  and  officers.  CBCA
corporations  are permitted to obtain such insurance also,  accept for liability
relating  to the  failure to act  honestly  and in good faith with a view to the
best  interests of the  corporation.  Abraxas  currently  has a  directors'  and
officers'  liability  insurance  policy  in effect  providing  $3.0  million  in
coverage  and an  additional  $1.0  million in coverage  for certain  employment
related claims.

      Abraxas has entered into indemnity  agreements  with each of its directors
and  officers.  These  agreements  provide  for  indemnification  to the  extent
permitted by the Nevada Statute.

      Under  the  CBCA,  except  in  respect  of an  action by or on behalf of a
corporation  or a  body  corporate  to  procure  a  judgment  in  its  favor,  a
corporation may indemnify a director or officer, a former director or officer or
a person who acts or acted at the corporation's request as a director or officer
of a  body  corporate  of  which  the  corporation  is or was a  shareholder  or
creditor,  and his or her  heirs and legal  representatives  (an  "Indemnifiable
Person"),  against all costs, charges and expenses,  including an amount paid to
settle an action or satisfy a  judgment,  reasonably  incurred  by him or her in
respect of any civil,  criminal or administrative  action or proceeding to which
he or she is made a party by  reason  of  being or  having  been a  director  or
officer  of such  corporation  or such body  corporate,  if: (a) he or she acted
honestly  and  in  good  faith  with  a  view  to the  best  interests  of  such
corporation;  and (b) in the case of a  criminal  or  administrative  action  or
proceeding  that is enforced  by a monetary  penalty,  he or she had  reasonable
grounds for believing  that his or her conduct was  substantially  successful on
the  merits in his or her  defense of the action or  proceeding,  fulfilled  the
conditions set out in (a) and (b),  above and is fairly and reasonably  entitled
to indemnity. A corporation may, with the approval of a court, also indemnify an
Indemnifiable  Person in respect of an action by or on behalf of the corporation
or body  corporate  to procure a judgment in its favor,  to which such person is
made a party by reason of being or having  been a director  or an officer of the
corporation or body  corporate,  if he or she fulfills the conditions set out in
(a) and (b), above. The Canadian Abraxas Bylaws provide for  indemnification  of
directors and officers to the fullest extent authorized by the CBCA.

Item 21. Exhibits and Financial Statement Schedules.

**3.1  Articles  of  Incorporation  of  Abraxas.  (Filed as  Exhibit  3.1 to the
Company's Form S-4 Registration  Statement,  Registration Statement No. 33-36565
(the "S-4 Registration Statement")).

**3.2  Articles of Amendment to the Articles of  Incorporation  of Abraxas dated
October 22, 1990 (Filed as Exhibit 3.3 to the S-4 Registration Statement).

**3.3  Articles of Amendment to the Articles of  Incorporation  of Abraxas dated
December 18, 1990. (Filed as Exhibit 3.4 to the S-4 Registration Statement).

**3.4  Articles of Amendment to the Articles of  Incorporation  of Abraxas dated
June 8,  1995.  (Filed as Exhibit  3.4 to the  Company's  Form S-3  Registration
Statement No. 333-398 (the "S-3 Registration Statement")).

**3.5 Amended and Restated  Bylaws of Abraxas.  (Filed as Exhibit 3.5 to the S-3
Registration Statement).

**3.6  Certificate of Designation of Series 1995-B  Preferred  Stock of Abraxas.
(Filed as Exhibit 3.6 to the S-3 Registration Statement).

   
***3.7 Articles of Incorporation of Canadian Abraxas.

***3.8 By-Laws of Canadian Abraxas.
    

**4.1 Specimen Common Stock Certificate of Abraxas. (Filed as Exhibit 4.1 to the
S-4 Registration Statement).

**4.2 Specimen Preferred Stock Certificate of Abraxas.  (Filed as Exhibit 4.2 to
the Company's Annual Report on Form 10-K filed on March 31, 1995).

**4.3 Rights Agreement dated as of December 6, 1994 between of Abraxas and First
Union  National Bank of North  Carolina  ("FUNB").  (Filed as Exhibit 4.1 to the
Company's Registration Statement on Form 8-A filed on December 6, 1994).

**4.4  Contingent  Value Rights Agreement dated November 17, 1995 by and between
Registrant  and FUNB (Filed as Exhibit 4.1 to the  Company's  Current  Report on
Form 8-K dated November 21, 1995).

**4.5 First Amendment to Contingent  Value Rights Agreement dated May 2, 1996 by
and between  Registrant and FUNB.  (Filed as Exhibit 4.5 to the S-3 Registration
Statement).

**4.6  Indenture  dated  November  14,  1996 by and  among the  Company  and IBJ
Schroder Bank and Trust Company.  (Filed as Exhibit 4.1 to the Company's Current
Report on Form 8-K dated November 27, 1996).

   
***4.7 Form of Note.
    

*4.8 Form of Letter of Transmittal.

   
***4.9 Specimen Common Stock Certificate of Canadian Abraxas.

***5.1 Opinion of Cox & Smith Incorporated.

***5.2 Opinion of Burnet, Duckworth & Palmer.
    

*8.1 Tax Opinion of Cox & Smith Incorporated.

*8.2 Tax Opinion of Burnet, Duckworth & Palmer.

**10.1 Abraxas Petroleum  Corporation 1984  Non-Qualified  Stock Option Plan, as
amended and restated.  (Filed as Exhibit 10.7 to the Company's  Annual Report on
Form 10-K filed April 14, 1993).

**10.2  Abraxas  Petroleum  Corporation  1984  Incentive  Stock Option Plan,  as
amended and restated.  (Filed as Exhibit 10.8 to the Company's  Annual Report on
Form 10-K filed April 14, 1993).

**10.3 Abraxas  Petroleum  Corporation  1993 Key Contributor  Stock Option Plan.
(Filed as Exhibit 10.9 to the  Company's  Annual Report on Form 10-K filed April
14, 1993).

   
+**10.4 Abraxas Petroleum Corporation 401(k) Profit Sharing Plan.

+**10.5 Abraxas Petroleum Corporation Director Stock Option Plan.
    

+**10.6  Abraxas  Petroleum  Corporation  Restricted  Share Plan for  Directors.
(Filed as Exhibit  10.20 to the  Company's  Annual  Report on Form 10-K filed on
April 12, 1994).

+**10.7 Abraxas  Petroleum  Corporation 1994 Long Term Incentive Plan. (Filed as
Exhibit  10.21 to the  Company's  Annual  Report on Form 10-K filed on April 12,
1994).

+**10.8 Abraxas Petroleum  Corporation  Incentive Performance Bonus Plan. (Filed
as Exhibit 10.24 to the Company's  Annual Report on Form 10-K filed on April 12,
1994).

**10.9 Registration  Rights and Stock Registration  Agreement dated as of August
11, 1993 by and among  Abraxas,  EEP and Endowment  Energy  Partners II, Limited
Partnership  ("EEP II").  (Filed as Exhibit 10.33 to the Company's  Registration
Statement  on  Form  S-1,  Registration  No.  33-66446  (the  "S-1  Registration
Statement")).

**10.10 First Amendment to Registration Rights and Stock Registration  Agreement
dated June 30, 1994 by and among Abraxas, EEP and EEP II. (Filed as Exhibit 10.3
to the Registrant's Current Report on Form 8-K filed on July 14, 1994).

**10.11 Second Amendment to Registration Rights and Stock Registration Agreement
dated September 2, 1994 by and among Abraxas,  EEP and EEP II. (Filed as Exhibit
10.3 to the Company's Annual Report on Form 10-K filed March 31, 1995)

**10.12 Third Amendment to Registration Rights and Stock Registration  Agreement
dated November 17, 1995 by and among Abraxas,  EEP and EEP II. (Filed as Exhibit
10.17 to the Company's Annual Report on Form 10-K filed March 31, 1995)

**10.13  Common  Stock  Purchase  Warrant  dated as of December 18, 1991 between
Abraxas and EEP. (Filed as Exhibit 12.3 to the Company's  Current Report on Form
8-K filed January 9, 1992).

**10.14 Common Stock Purchase Warrant dated as of August 1, 1993 between Abraxas
and EEP. (Filed as Exhibit 10.35 to the S-1 Registration Statement).

**10.15 Common Stock Purchase  Warrant dated August 11, 1993 between Abraxas and
EEP II. (Filed as Exhibit 10.36 to the S-1 Registration Statement).

**10.16 Common Stock Purchase  Warrant dated August 11, 1993 between Abraxas and
Associated Energy Managers, Inc. (Filed as Exhibit 10.37 to the S-1 Registration
Statement).

**10.17 Letter dated September 2, 1994 from Abraxas to EEP and EEP II. (Filed as
Exhibit 10.13 to the Company's Annual Report on Form 10-K filed March 31, 1995)

**10.18  Amended and  Restated  Credit  Agreement  dated as of November 14, 1996
among Abraxas,  Bankers Trust Company,  Inc. (U.S.) Capital  Corporation and the
Lenders named therein. (Filed as Exhibit 10.5 to the Company's Current Report on
Form 8-K filed November 27, 1996).

**10.19  Warrant  Agreement  dated as of July 27, 1994 between Abraxas and FUNB.
(Filed as Exhibit 10.3 to the Company's  Current Report on Form 8-K filed August
5, 1994).

**10.20  Warrant  Agreement  dated as of December 16, 1994,  between Abraxas and
FUNB.  (Filed as Exhibit 10.23 to the Company's Annual Report on Form 10-K filed
March 31, 1995).

**10.21 First Amendment to Warrant Agreement dated as of August 31, 1995 between
Abraxas and FUNB. (Filed as Exhibit 10.21 to the S-3 Registration Statement).

**10.22 Form of Indemnity  Agreement  between  Abraxas and each of its directors
and officers. (Filed as Exhibit 10.30 to the S-1 Registration Statement).

+**10.23 Employment Agreement between Abraxas and Robert L. G. Watson. (Filed as
Exhibit 10.23 to the S-3 Registration Statement).

+**10.24 Employment Agreement between Abraxas and Chris E. Williford.  (Filed as
Exhibit 10.24 to the S-3 Registration Statement).

+**10.25  Employment  Agreement between Abraxas and Robert Patterson.  (Filed as
Exhibit 10.25 to the S-3 Registration Statement).

+**10.26 Employment  Agreement between Abraxas and Stephen T. Wendel.  (Filed as
Exhibit 10.26 to the S-3 Registration Statement).

**10.27 Common Stock and Contingent Value Rights Purchase  Agreement dated as of
November 17, 1995 by and among  Abraxas and the  Purchasers  named in Schedule l
thereto.  (Filed as Exhibit  10.1 to the  Company's  Current  Report on Form 8-K
dated November 21, 1995.)

**10.28  Registration  Agreement dated November 17, 1995 by and among Registrant
and the  parties  named in  Schedule  I thereto.  (Filed as Exhibit  10.2 to the
Company's Current Report on Form 8-K dated November 21, 1995.)

**10.29  Subscription  Agreement  between  Registrant and Grey Wolf Exploration,
Ltd.  (Filed as Exhibit 10.1 to the Company's  Current  Report on Form 8-K dated
January 17, 1995.)

**10.30 Subscription  Agreement between Grey Wolf Exploration,  Ltd. and Cascade
Oil and Gas Ltd. (Filed as Exhibit 10.2 to the Company's  Current Report on Form
8-K dated January 17, 1995.)

**10.31  Purchase  Agreement  dated  November  14,  1996 by and  among  Abraxas,
Canadian Abraxas, BT Securities  Corporation,  Jefferies & Company, Inc. and ING
Baring (U.S.) Securities Corporation  (collectively,  the "Initial Purchasers").
(Filed  as  Exhibit  10.1 to the  Company's  Current  Report  on Form 8-K  filed
November 27, 1996).

**10.32  Registration  Rights  Agreement  dated  November  14, 1996 by and among
Abraxas, Canadian Abraxas, and the Initial Purchasers. (Filed as Exhibit 10.2 to
the Company's Current Report on Form 8-K filed November 27, 1996).

**10.33  Share Sale  Agreement  dated  October  29,  1996 by and among  Abraxas,
Canadian  Abraxas,  CGGS  Canadian Gas Gathering  Systems Inc.  ("CGGS") and the
shareholders of CGGS.  (Filed as Exhibit 10.3 to the Company's Current Report on
Form 8-K filed November 27, 1996).

**10.34  Purchase  and Sale  Agreement  dated  September  18,  1996 by and among
Abraxas, Acco, LLC, Massachusetts Bay Transportation  Authority Retirement Fund,
Metropolitan Life Insurance Company Separate Account No. 175, The General Mills,
Inc.  Master Trust:  Pooled Real Estate Fund and State Street  Research  Energy,
Inc.  (Filed as Exhibit 10.4 to the Company's  Current  Report on Form 8-K filed
November 27, 1996).

**10.35  Purchase  and Sale  Agreement  dated May 22, 1996  between  Abraxas and
Enserch Exploration, Inc. (Filed as Exhibit 10.1 to the Company's Current Report
on Form 8-K filed October 15, 1996).

   
***10.36  Management  Agreement dated November 14, 1996 by and between  Canadian
Abraxas and Cascade Oil & Gas Ltd.

*12.1 Statement Regarding  Computation of Ratio of Earnings to Fixed Charges and
Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends.
    

**18.1 Letter regarding change in accounting  principle.  (Filed as Exhibit 18.1
to the Registrant's Annual Report on Form 10-K filed on April 12, 1994).

   
***22.1 Subsidiaries of Abraxas.
    

*23.  1 Consent of Ernst & Young LLP.

   
***23.2 Consent of DeGolyer and MacNaughton.

***23.3 Consent of Sproule Associates Limited.

***23.4 Consent of Cox & Smith Incorporated (included in Exhibit 5.1).
    

*23.5 Consent of Deloitte & Touche LLP.

*23.6 Consent of KPMG.

   
***23.7 Consent of Burnet, Duckworth & Palmer (included in Exhibit 5.2).

***24.1 Power of Attorney of Franklin Burke.

***24.2 Power of Attorney of Harold D. Carter.

***24.3 Power of Attorney of Robert D. Gershen.

***24.4 Power of Attorney of Richard M. Kleberg, III.

***24.5 Power of Attorney of James C. Phelps.

***24.6 Power of Attorney of Paul A. Powell, Jr.

*24.7 Power of Attorney of Richard M. Riggs

***25.1 Form T-1 Statement of Eligibility and Qualification of IBJ Schroder Bank
& Trust Company, as Trustee.
    

*27.1 Financial Data Schedule.

*    Filed herewith.
   
**   Incorporated by reference to the filing indicated.
***  Previously Filed.
+    Management Compensatory Plan or Agreement.
    


<PAGE>


Item 22.     Undertakings

      A. Each of the  undersigned  registrants  hereby  undertakes to respond to
requests for  information  that is incorporated by reference into the prospectus
pursuant to Items 4, 10(b),  11, or 13 of this Form,  within one business day of
receipt of such request,  and to send the incorporated  documents by first class
mail or other equally  prompt  means.  This  includes  information  contained in
documents filed subsequent to the effective date of the  Registration  Statement
through the date of responding to the request.

      B.  Each  of the  undersigned  registrants  hereby  undertakes  that,  for
purposes of determining  any liability  under the  Securities Act of 1933,  each
filing of the  registrant's  annual report  pursuant to Section 13(a) or Section
15(d) of the Securities  Exchange Act of 1934 that is  incorporated by reference
in the registration statement shall be deemed to be a new registration statement
relating to the securities offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

      C. Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors,  officers and controlling  persons of
each of the registrants pursuant to the foregoing provisions,  or otherwise, the
registrants have been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and is, therefore,  unenforceable. In the event that a claim for indemnification
against such liabilities  (other than the payment by the registrants of expenses
incurred or paid by a director,  officer or controlling person in the successful
defense of any  action,  suit or  proceedings)  is  asserted  by such  director,
officer  or  controlling   person  in  connection  with  the  securities   being
registered,  the  registrants  will,  unless in the opinion of their counsel the
matter  has  been  settled  by  controlling  precedent,  submit  to a  court  of
appropriate  jurisdiction the question whether such indemnification by either of
them is against  public  policy as  expressed in the Act and will be governed by
the final adjudication of such issue.

      D. Each of the  undersigned  registrants  hereby  undertakes  to supply by
means of a  post-effective  amendment all information  concerning a transaction,
and the company being acquired involved therein, that was not the subject of and
included in the Registration Statement when it became effective.



<PAGE>


                                   SIGNATURES

   
      Pursuant  to the  requirements  of the  Securities  Act,  the  undersigned
registrant  has duly  caused  this  Registration  Statement  to be signed on its
behalf  by the  undersigned,  thereunto  duly  authorized,  in the  City  of San
Antonio, Texas, on January 23, 1997.
    



                          ABRAXAS PETROLEUM CORPORATION



                          By:   /s/ Robert L. G. Watson
                             --------------------------------         
                              Robert L. G. Watson, Chairman of the Board,
                              Chief Executive Officer and President
<PAGE>


      Pursuant  to  the  requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has been signed below by the  following  persons in the
capacities and on the date indicated.

      Signature                 Name and Title                     Date

   
/s/ Robert L. G. Watson         Chairman of the Board,        January 23 , 1997
- ------------------------        President, Chief Executive
Robert L.G. Watson              Officer (Principal Executive
                                Officer) and Director
                                of the Company                            
                 
    
                              
   
/s/ Chris E. Williford          Executive Vice President,      January 23, 1997
- ------------------------------  Treasurer, Chief Financial                      
Chris E. Williford              Officer and Director (Principal 
                                Financial and Accounting Officer)
                                of the Company
                              
        
                              
                              

   
 *                              Director of the Company        January 23, 1997
- ------------------------                                                       
Franklin Burke

*                               Director of the Company        January 23, 1997
- ------------------------                                                        
Harold D. Carter

*                               Director of the Company       January 23 , 1997
- ------------------------                                                        
Robert D. Gershen

*                               Director of the Company       January 23 , 1997
- ------------------------                                                        
Richard M. Kleberg, III

 *                              Director of the Company        January 23, 1997
- ------------------------                                                        
James C. Phelps

 *                              Director of the Company       January 23 , 1997
- ------------------------                                                        
Paul A. Powell, Jr.

*                               Director of the Company        January 23, 1997
- ------------------------                                                        
Richard M. Riggs
    

By: /s/ Chris E. Williford
   ------------------------
Chris E. Williford
Attorney-in-fact


<PAGE>


                                   SIGNATURES

   
      Pursuant  to the  requirements  of the  Securities  Act,  the  undersigned
registrant  has duly  caused  this  Registration  Statement  to be signed on its
behalf  by the  undersigned,  thereunto  duly  authorized,  in the  City  of San
Antonio, Texas, on January 23, 1997.
    



                                    CANADIAN ABRAXAS PETROLEUM LIMITED



                                    By:   /s/ Robert L. G. Watson
                                        ------------------------------  
                                        Robert L. G. Watson, President



<PAGE>


      Pursuant  to  the  requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has been signed below by the  following  persons in the
capacities and on the date indicated.

      Signature                   Name and Title                   Date

   
/s/ Robert L. G. Watson        Chairman of the Board,          January 23, 1997
- ------------------------       President, and Director of                       
Robert L.G. Watson             Canadian Abraxas
                               (Principal Executive Officer)
                
    
        

   
/s/Chris E. Williford           Vice President and Assistant   January 23, 1997
- ------------------------        Secretary of Canadian Abraxas
Chris E. Williford              (Principal Accounting Officer) 
                               
    
                              

   
/s/ Donald A. Engle            Secretary and Director of       January 23, 1997
- --------------------------                                                      
    
Donald A. Engle                Canadian Abraxas

   
/s/ Roger L. Bruton            Executive Vice President and   January 23 , 1997
- --------------------------                                                     
    
                               Director of Canadian Abraxas




<PAGE>



                                  EXHIBIT INDEX

Exhibit Number:  Exhibit                                     Page Number


4.8              Form of Letter of Transmittal.                      __

8.1              Tax Opinion of Cox & Smith Incorporated             __

8.2              Tax Opinion of Burnet, Duckworth & Palmer           __

12.1             Statement Regarding Computation of Ratio of Earnings
                 to Fixed Charges and Ratio of Earnings to Combined
                 Fixed Charges and Preferred Stock Dividends         __
23.1             Consent of Ernst & Young LLP.                       __

23.5             Consent of Deloitte & Touche LLP.                   __

23.6             Consent of KPMG.                                    __

24.7             Power of Attorney of Richard M. Riggs               __

27.1             Financial Data Schedule.                            __


<PAGE>

 
                                                                EXHIBIT 4.8

                                                     



                THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW
                   YORK CITY TIME, ON , 1997, UNLESS EXTENDED.



                          FORM OF LETTER OF TRANSMITTAL


                    TO ACCOMPANY 11.5% SENIOR NOTES DUE 2004,
                      SERIES A (CUSIP NO. ____________) OF

                          ABRAXAS PETROLEUM CORPORATION
                             (a Nevada corporation)
                                       AND
                       CANADIAN ABRAXAS PETROLEUM LIMITED
                             (a Canada corporation)

                       TENDERED PURSUANT TO THE PROSPECTUS
   
                            DATED ____________, 1997
    



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(PLEASE READ THE INSTRUCTIONS CAREFULLY)

IMPORTANT:  THIS LETTER OF  TRANSMITTAL  (OR A  FACSIMILE  HEREOF) AND ALL OTHER
DOCUMENTS  AND  INSTRUMENTS  REQUIRED  HEREBY SHOULD BE SENT OR DELIVERED TO THE
EXCHANGE  AGENT AT THE ADDRESS SET FORTH BELOW.  TENDERS MUST BE RECEIVED BY THE
EXCHANGE  AGENT PRIOR TO 5:00 P.M.,  NEW YORK CITY TIME,  ON , 1997,  UNLESS THE
EXCHANGE OFFER IS EXTENDED (THE "EXPIRATION DATE").

                               The Exchange Agent

                        IBJ SCHRODER BANK & TRUST COMPANY

Facsimile Transmission Telephone Number:        Address for Mailing:
   
      (212) 858-2611                            One State Street
    
                                                New York, N.Y.  10004
   
                                                Attn: Reorganization Operations
                                                      Department
    

Confirm by Telephone:                           Address for Couriers and
                                                Hand Deliveries:
   
      (212) 858-2103                            One State Street
    
                                                New York, N.Y.  10004
   
                                                Attn: Securities Processing
                                                      Window,
                                                      Subcellar One (SC-1)
    


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

DELIVERY TO ANY ADDRESS OTHER THAN AS SET FORTH HEREIN WILL NOT CONSTITUTE VALID
DELIVERY.

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

THE  INSTRUCTIONS  ACCOMPANYING  THIS  LETTER  OF  TRANSMITTAL  SHOULD  BE  READ
CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.

      This Letter of Transmittal is to be completed by holders of Series A Notes
(as defined  below) only (a) if Series A Notes are to be  forwarded  herewith or
(b) if delivery of such Series A Notes is to be made by  book-entry  transfer to
the account  maintained by the Exchange  Agent at The  Depository  Trust Company
(DTC) pursuant to the procedures set forth under the caption "The Exchange Offer
- -- How to Tender" in the Prospectus (as defined below). DELIVERY OF DOCUMENTS TO
DTC DOES NOT CONSTITUTE DELIVERY TO THE EXCHANGE AGENT.

      Holders  of  Series A Notes who  cannot  deliver  their  Series A Notes or
deliver confirmation of the book-entry transfer of their Series A Notes into the
Exchange  Agent's account at DTC and all other documents  required hereby to the
Exchange  Agent on or prior to the  Expiration  Date must tender  their Series A
Notes pursuant to the guaranteed  delivery procedure set forth under the caption
"The  Exchange  Offer -- How to Tender" in the  Prospectus.  See  Instruction  2
herein.



<PAGE>


            (BOXES BELOW TO BE CHECKED BY ELIGIBLE INSTITUTIONS ONLY)

/     / CHECK HERE IF TENDERED  SERIES A NOTES ARE BEING DELIVERED BY BOOK-ENTRY
      TRANSFER MADE TO THE ACCOUNT MAINTAINED BY THE EXCHANGE AGENT WITH DTC AND
      COMPLETE THE FOLLOWING:

Name of Tendering Institution___________________________________________
DTC Account Number _____________________________________________________
Transaction Code Number ________________________________________________

/     / CHECK HERE AND ENCLOSE A PHOTOCOPY OF THE NOTICE OF GUARANTEED  DELIVERY
      IF  TENDERED  SERIES A NOTES ARE BEING  DELIVERED  PURSUANT TO A NOTICE OF
      GUARANTEED DELIVERY PREVIOUSLY SENT TO THE EXCHANGE AGENT AND COMPLETE THE
      FOLLOWING:

Name of Registered Owner(s) ____________________________________________
Date of Execution of Notice of Guaranteed Delivery _____________________
Name of Institution which Guaranteed delivery __________________________

If Delivered By Book-Entry Transfer:

Name of Tendering Institution __________________________________________
DTC Account Number _____________________________________________________
Transaction Code Number ________________________________________________

/     / CHECK HERE IF TENDERING BY BOOK-ENTRY TRANSFER AND NON-EXCHANGED  SERIES
      A NOTES ARE TO BE RETURNED BY CREDITING  THE DTC ACCOUNT  NUMBER SET FORTH
      ABOVE.




<PAGE>


                     DESCRIPTION OF SERIES A NOTES TENDERED

SERIES A NOTES TENDERED_________________________________________________

IF BLANK, PRINT NAME AND ADDRESS OF REGISTERED HOLDER.
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(ATTACH ADDITIONAL LIST IF NECESSARY)
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                                 AGGREGATE PRINCIPAL  PRINCIPAL AMOUNT OF
                  SERIES A        AMOUNT OF SERIES A     SERIES A NOTES
              NOTES NUMBER(S)*          NOTES              TENDERED**
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TOTALS:
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* Need not be completed by Book-Entry Holders.
** The  aggregate  principal  amount of all  Series A Notes held shall be deemed
tendered  unless a lesser  principal  amount is specified  in this  column.  See
Instruction 4.



<PAGE>


                     NOTE: SIGNATURES MUST BE PROVIDED BELOW
               PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY

Ladies and Gentlemen:

   
      Pursuant to the terms and subject to the  conditions of the Exchange Offer
(as described  below) of Abraxas  Petroleum  Corporation,  a Nevada  corporation
("Abraxas"),  and  Canadian  Abraxas  Petroleum  Limited,  a Canada  corporation
("Canadian  Abraxas" and, together with Abraxas,  the "Issuers"),  to holders of
the  Issuers'  11.5%  Senior  Notes due 2004,  Series A issued  pursuant  to the
Offering  Memorandum dated November 5, 1996 (the "Series A Notes"), as set forth
in the Prospectus dated ___________,  1997 (the "Prospectus") and this Letter of
Transmittal  (which,  together  with the  Prospectus,  constitute  the  Exchange
Offer),  the signer of this Letter of Transmittal  (the "Holder") hereby accepts
the  Exchange  Offer and  tenders  the Series A Notes  listed on this  Letter of
Transmittal  in exchange for a like  principal  amount of 11.5% Senior Notes due
2004,  Series B (the "Exchange  Notes").  The Exchange  Notes are  substantially
identical  to the Series A Notes  except that the resale of the  Exchange  Notes
will not be subject to the restrictions of Rule 144A under the Securities Act of
1933,  as amended (the  "Securities  Act"),  and the Exchange  Notes will not be
subject to certain  interest rate increase  provisions  which were applicable to
the  Series A Notes in  certain  circumstances  relating  to the  timing  of the
Exchange  Offer.  The Holder  hereby  acknowledges  receipt  of the  Prospectus.
Capitalized terms used but not defined herein have the respective meanings given
such terms in the Prospectus.
    

      Accordingly,  subject to, and effective  upon,  acceptance for exchange of
the Series A Notes tendered herewith in accordance with the terms and conditions
of the Exchange  Offer,  the Holder hereby  sells,  assigns and transfers to the
Issuers all right,  title and  interest in and to all of the Series A Notes that
are being tendered for exchange hereby, and hereby  irrevocably  constitutes and
appoints the Exchange  Agent the true and lawful agent and  attorney-in-fact  of
the Holder  with  respect to such  securities,  with full power of  substitution
(such power of attorney being deemed to be an irrevocable  power coupled with an
interest),  to (i) deliver Series A Notes tendered hereby or transfer  ownership
of such  securities on the account books  maintained by DTC together,  in either
such case,  with the  accompanying  evidences of transfer and authority,  to the
Issuers upon the receipt by the Exchange  Agent,  as the Holder's  agent, of the
consideration  therefor  pursuant to the  Exchange  Offer,  and (ii) receive all
benefits  and  otherwise  exercise  all rights of  beneficial  ownership of such
Series A Notes.

   
      THE HOLDER HEREBY  REPRESENTS  AND WARRANTS THAT THE HOLDER HAS FULL POWER
AND AUTHORITY TO TENDER,  EXCHANGE, SELL, ASSIGN AND TRANSFER THE SERIES A NOTES
TENDERED  HEREBY AND TO ACQUIRE THE EXCHANGE NOTES ISSUABLE UPON THE EXCHANGE OF
SUCH TENDERED SECURITIES, THAT THE EXCHANGE AGENT, AS AGENT OF THE ISSUERS, WILL
ACQUIRE GOOD AND  UNENCUMBERED  TITLE TO SUCH TENDERED SERIES A NOTES,  FREE AND
CLEAR OF ALL LIENS,  RESTRICTIONS,  CHARGES AND  ENCUMBRANCES,  AND THE SERIES A
NOTES TENDERED  HEREBY ARE NOT SUBJECT TO ANY ADVERSE CLAIM OR ENCUMBRANCE  WHEN
THE SAME ARE ACCEPTED BY THE ISSUERS. THE HOLDER WILL, UPON REQUEST, EXECUTE AND
DELIVER ANY ADDITIONAL  DOCUMENTS DEEMED BY THE ISSUERS OR THE EXCHANGE AGENT TO
BE  NECESSARY  OR  DESIRABLE TO COMPLETE  THE  EXCHANGE,  SALE,  ASSIGNMENT  AND
TRANSFER OF THE SERIES A NOTES TENDERED HEREBY.
    

      All authority herein conferred or agreed to be conferred in this Letter of
Transmittal  shall  survive  the  death or  incapacity  of the  Holder,  and any
obligation  of the Holder  hereunder  shall be binding upon the heirs,  personal
representatives,  successors and assigns of the Holder.  Except as stated in the
Prospectus, this tender is irrevocable.

      A tender of Series A Notes  pursuant to the  procedures  described  in the
Prospectus  and  in  the  instructions   hereto  will  constitute  the  Holder's
acceptance  of the  terms and  conditions  of the  Exchange  Offer and a binding
agreement  between the  tendering  Holder of Series A Notes and the Issuers upon
the terms and  subject  to the  conditions  of the  Exchange  Offer.  The Holder
recognizes that, under certain  circumstances  set forth in the Prospectus,  the
Issuers  may not be required  to accept any of the Series A Notes  tendered  for
exchange  hereby.  The Holder hereby  directs that the Exchange Notes and/or any
Series  A  Notes  representing  any  principal  amount  of such  securities  not
exchanged  be issued in the name of the  Holder.  The  Holder  understands  that
Holders who tender Series A Notes by book-entry transfer ("Book-Entry  Holders")
will receive their Exchange Notes and any principal amount of Series A Notes not
exchanged will be returned to such Book-Entry Holder by crediting in the name of
such Book-Entry Holder the account maintained by DTC. The Holder recognizes that
the Issuers have no  obligation  to transfer any Series A Notes from the name(s)
of the registered holder(s) thereof.

      BY TENDERING SERIES A NOTES AND EXECUTING THIS LETTER OF TRANSMITTAL,  THE
HOLDER IS DEEMED TO REPRESENT AND AGREE, AND HEREBY REPRESENTS AND AGREES,  THAT
(I) IT IS ACQUIRING EXCHANGE NOTES ISSUABLE IN EXCHANGE THEREFOR IN THE ORDINARY
COURSE OF ITS  BUSINESS,  (II) UNLESS IT IS A  BROKER-DEALER  REFERRED TO IN THE
NEXT  SENTENCE,  IT IS NOT  ENGAGING  AND  DOES  NOT  INTEND  TO  ENGAGE  IN THE
DISTRIBUTION  OF THE EXCHANGE  NOTES,  (III) AT THE TIME OF  CONSUMMATION OF THE
EXCHANGE  OFFER THE HOLDER WILL HAVE NO ARRANGEMENT  OR  UNDERSTANDING  WITH ANY
PERSON TO PARTICIPATE IN THE  DISTRIBUTION OF THE EXCHANGE NOTES IN VIOLATION OF
THE PROVISIONS OF THE SECURITIES ACT, (IV) THE HOLDER IS NOT AN AFFILIATE OF ANY
OF THE ISSUERS  WITHIN THE MEANING OF RULE 405 UNDER THE  SECURITIES ACT AND (V)
IF IT  PARTICIPATES  IN THE EXCHANGE OFFER FOR THE PURPOSE OF  DISTRIBUTING  THE
EXCHANGE  NOTES IT MUST COMPLY WITH THE  REGISTRATION  AND  PROSPECTUS  DELIVERY
REQUIREMENTS OF THE SECURITIES ACT IN CONNECTION WITH ANY RESALE OF THE EXCHANGE
NOTES.  EACH  HOLDER WHO IS A  PARTICIPATING  BROKER-DEALER  (AS  DEFINED IN THE
PROSPECTUS)  HOLDING  SERIES A NOTES ACQUIRED FOR ITS OWN ACCOUNT AS A RESULT OF
MARKET-MAKING  OR OTHER TRADING  ACTIVITIES THAT WILL RECEIVE  EXCHANGE NOTES IN
EXCHANGE  FOR  SUCH  SERIES  A NOTES  PURSUANT  TO THE  EXCHANGE  OFFER  FURTHER
REPRESENTS  AND  AGREES  THAT IT WILL  DELIVER A  PROSPECTUS  (WHICH  MAY BE THE
PROSPECTUS)  IN  CONNECTION  WITH ANY RESALE OF SUCH  EXCHANGE  NOTES DURING THE
PERIOD REQUIRED BY THE SECURITIES ACT. BY ACKNOWLEDGING THAT IT WILL DELIVER AND
BY DELIVERING A PROSPECTUS, A PARTICIPATING  BROKER-DEALER WILL NOT BE DEEMED TO
ADMIT THAT IT IS AN "UNDERWRITER" WITHIN THE MEANING OF THE SECURITIES ACT.






<PAGE>


HOLDER SIGN HERE

X____________________________________________

X____________________________________________
           (Signature(s) of Owner(s))

Dated___________________________________, 1995

Holder's Telephone Number_____________________


(Must be signed by the  registered  holder(s)  exactly as name(s)  appear(s)  on
Series  A  Notes.  If  signature  is by an  attorney,  executor,  administrator,
trustee,  guardian or others  acting in a fiduciary  capacity,  please set forth
full title and see Instruction 5.)

Signature(s)
Guaranteed
(See Instruction 1)

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(Firm -- Please Print)

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(Authorized Signature)

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(Date)

                          SPECIAL DELIVERY INSTRUCTIONS
                        (See Instructions 1, 4, 5 and 6)

      To be completed  ONLY by registered  holders and ONLY if Exchange Notes or
Series  A  Notes  representing  any  principal  amount  of such  securities  not
exchanged  are to be sent to the  Holder at an  address  other  than that  shown
above.

Mail Exchange Notes (or Series A Notes) to:

(Name -- Please Print) _________________________________________________

(Address) (Include Zip Code)____________________________________________
========================================================================
FOR PARTICIPATING BROKER-DEALERS ONLY
(See Instruction 11)

Please send copies of the Prospectus and any  supplements or amendments  thereto
to the following address:

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<PAGE>


                                  INSTRUCTIONS

FORMING PART OF THE TERMS AND CONDITIONS OF THE EXCHANGE OFFER

1.     GUARANTEE OF SIGNATURES. Signatures on Letters of Transmittal need not be
       guaranteed,  except as  provided  in this  Instruction  1. In cases where
       Series A Notes are tendered for exchange by a registered holder of Series
       A  Notes  who  has   completed   the  box  entitled   "Special   Delivery
       Instructions"  on the  Letter of  Transmittal,  signatures  on Letters of
       Transmittal  (or  facsimiles  thereof) must be guaranteed by a commercial
       bank or trust  company  having an office or  correspondent  in the United
       States or a firm which is a member of a  registered  national  securities
       exchange or a member of the National  Association of Securities  Dealers,
       Inc. (an "Eligible Institution").

2.     DELIVERY  OF  LETTER  OF  TRANSMITTAL  AND  CERTIFICATES.   In  order  to
       participate  in the Exchange  Offer and  receiveExchange  Notes, a holder
       must properly  complete and duly execute (with  signatures  guaranteed if
       required  by  Instruction  1) the Letter of  Transmittal  (or a facsimile
       thereof) and mail or deliver it,  together  with the Series A Notes to be
       tendered  for  exchange  (or the  Exchange  Agent  must  receive a timely
       confirmation  of a  book-entry  transfer  of such Series A Notes into the
       Exchange  Agent's  account at DTC as described in the Prospectus) and any
       other required documents,  to the Exchange Agent. The Exchange Agent must
       receive  the  foregoing  documents  and  instruments  on or  prior to the
       Expiration  Date.  DELIVERY  OF  DOCUMENTS  TO DTC  DOES  NOT  CONSTITUTE
       DELIVERY TO THE EXCHANGE AGENT.

   
      If a holder  desires to tender  Series A Notes  pursuant  to the  Exchange
      Offer and such holder's Series A Notes are not immediately  available,  or
      if the procedure for book-entry  transfer  cannot be completed on a timely
      basis,  or such  holder  cannot  deliver  the Series A Notes and all other
      required  documents to the Exchange  Agent prior to the  Expiration  Date,
      such  Series A Notes may be tendered  if all of the  following  guaranteed
      delivery  procedures  are complied  with:  (i) such tenders are made by or
      through  an  Eligible  Institution;  (ii) a  properly  completed  and duly
      executed Notice of Guaranteed Delivery, in substantially the form provided
      by the  Issuers,  is  received  by the  Exchange  Agent on or prior to the
      Expiration Date; and (iii) the Series A Notes, in proper form for transfer
      (or  confirmation  of book-entry  transfer of such Series A Notes into the
      Exchange Agent's account at DTC as described in the Prospectus),  together
      with a properly  completed and duly executed Letter of Transmittal and all
      other documents  required by this Letter of  Transmittal,  are received by
      the Exchange Agent within three New York Stock Exchange, Inc. trading days
      after the date of execution of such Notice of Guaranteed Delivery,  all as
      provided  under the caption "The  Exchange  Offer -- How to Tender" in the
      Prospectus.

      All questions as to the validity,  form,  eligibility  (including  time of
      receipt) and  acceptability  of Series A Notes tendered will be determined
      by the Issuers in their sole discretion,  and such  determinations will be
      final and  binding.  The  Issuers  reserve the right to reject any and all
      tenders  determined  by their not to be in proper  form or  otherwise  not
      valid or the  acceptance  for exchange of which may, in the opinion of the
      Issuers'  counsel,   be  unlawful  or  to  waive  any   irregularities  or
      conditions. The Issuers' interpretation of the terms and conditions of the
      Exchange  Offer  (including  the Letter of  Transmittal  and  Instructions
      thereto)  will also be final and  binding.  The Issuers  and the  Exchange
      Agent are not under any duty to give notification of any irregularities or
      defects  and shall not incur any  liability  for  failure to give any such
      notification.  Tenders  will not be deemed to have  been made  until  such
      irregularities or defects have been cured or waived. Any tender (including
      the  Letter  of  Transmittal  and  Series  A Notes)  that is not  properly
      completed and executed,  and as to which irregularities or defects are not
      cured or waived,  will be returned by the Exchange  Agent to the tendering
      holder  promptly after the  Expiration  Date without cost to the tendering
      holder (or, in the case of Series A Notes delivered by book-entry transfer
      within DTC,  the  tendered  Series A Notes will be credited to the account
      maintained within DTC by the participant).
    

      THE METHOD OF DELIVERY OF THIS LETTER OF  TRANSMITTAL,  THE SERIES A NOTES
      AND ALL OTHER REQUIRED  DOCUMENTS,  INCLUDING  DELIVERY THROUGH DTC, IS AT
      THE ELECTION  AND RISK OF THE  TENDERING  HOLDER AND,  EXCEPT AS OTHERWISE
      PROVIDED IN THIS INSTRUCTION 2, THE DELIVERY WILL BE DEEMED MADE ONLY WHEN
      ACTUALLY  RECEIVED  BY  THE  EXCHANGE  AGENT.  IF  DELIVERY  IS  BY  MAIL,
      REGISTERED  MAIL,  WITH RETURN RECEIPT  REQUESTED,  PROPERLY  INSURED,  IS
      RECOMMENDED.

      No alternative,  conditional or contingent  tenders will be accepted.  All
      tendering holders, by execution of this Letter of Transmittal or facsimile
      hereof,  waive any rights to receive any notice of the acceptance of their
      tender.

3.     INADEQUATE SPACE. If the space provided herein is inadequate,  the Series
       A Note  numbers  and the  principal  amount of  Series A Notes  should be
       listed on a separate signed schedule attached hereto.

4.     PARTIAL TENDERS.  If less than all of the principal amount represented by
       any Series A Note  submitted is to be tendered,  the principal  amount of
       the Series A Notes which are to be  tendered  should be stated in the box
       entitled  "Principal  Amount of Series A Notes  Tendered."  New  Series A
       Notes for the remaining principal amount of the old Series A Note(s) will
       either be sent to the registered  holder of the Series A Note(s) tendered
       as soon as practicable  after the tender has been accepted or credited to
       the  holder's   account  in  accordance   with   appropriate   book-entry
       procedures.  The aggregate  principal amount of all Series A Notes listed
       are deemed to have been  tendered  unless  otherwise  indicated.  Partial
       tenders  of all  Series  A Notes  may be made  only if (i) the  principal
       amount tendered is equal to $1,000 or an integral multiple  thereof;  and
       (ii)  the  remaining  untendered  portion  of such  Series A Note is in a
       principal  amount of  $250,000,  or any  integral  multiple  of $1,000 in
       excess of such amount.

5.    SIGNATURES ON LETTER OF  TRANSMITTAL.  This Letter of Transmittal  must be
      signed by the registered  holder of the Series A Note(s)  tendered  hereby
      and if the Series A Notes are  registered  the signature  must  correspond
      exactly  with the name as written on the face of the Series A Note(s) with
      alteration, enlargement or any change whatsoever.

      If the Series A Notes  tendered  hereby are owned of record by two or more
      joint owners, all such owners must sign this Letter of Transmittal.

      If  this  Letter  of  Transmittal   is  signed  by  trustees,   executors,
      administrators, guardians, attorneys-in-fact,  officers of corporations or
      others  acting in a fiduciary  or  representative  capacity,  such persons
      should so indicate when signing,  and proper evidence  satisfactory to the
      Issuers of their authority to so act must be submitted.

6.     DELIVERY OF  EXCHANGE  NOTES.  Delivery  of  Exchange  Notes will be made
       promptly  after  the  Expiration  Date for all  Series  A Notes  properly
       tendered and accepted for exchange by the Issuers.  The Exchange Notes of
       registered holders will be issued in the name of the registered holder(s)
       of the  Series A Notes and will  either be  mailed to such  holder(s)  or
       credited  to  such  holder's   account  in  accordance  with  appropriate
       book-entry  procedures.  In the case of tenders  by Notice of  Guaranteed
       Delivery,  Exchange  Notes  will not be  delivered  until  the  Letter of
       Transmittal,  the Series A Notes  relating to such  Notice of  Guaranteed
       Delivery  (or a timely  confirmation  of a  book-entry  transfer  of such
       Series A Notes into the  Exchange  Agent's  account of DTC) and all other
       required documents have been received by the Exchange Agent.

7.     SECURITY  TRANSFER  TAXES.  The Issuers  will pay all  security  transfer
       taxes, if any,  applicable to the exchange of Series A Notes tendered and
       accepted pursuant to the Exchange Offer.

8.     BACKUP FEDERAL INCOME TAX  WITHHOLDING  AND SUBSTITUTE FORM W9. Under the
       federal  income  tax laws,  payments  that may be made by the  Issuers on
       account of Exchange  Notes issued  pursuant to the Exchange  Offer may be
       subject to backup  withholding at the rate of 31%. In order to avoid such
       backup  withholding,  each tendering  holder should complete and sign the
       Substitute Form W-9 included in this Letter of Transmittal and either (a)
       provide the correct taxpayer  identification  number ("TIN") and certify,
       under penalties of perjury, that the TIN provided is correct and that (i)
       the holder has not been  notified by the  Internal  Revenue  Service (the
       "IRS")  that the holder is subject to backup  withholding  as a result of
       failure to report all  interest or dividends or (ii) the IRS has notified
       the holder that the holder is no longer subject to backup withholding; or
       (b) provide an adequate basis for exemption.  If the tendering holder has
       not been  issued a TIN and has  applied  for one, or intends to apply for
       one in the near future,  such holder  should write  "Applied  For" in the
       space provided for the TIN in Part I of the Substitute Form W-9, sign and
       date the Substitute  Form W-9 and sign the  Certificate of Payee Awaiting
       Taxpayer  Identification  Number.  If "Applied For" is written in Part I,
       the  Issuers  (or the Paying  Agent  under the  Indenture  governing  the
       Exchange Notes) shall retain 31% of payments made to the tendering holder
       during the sixty day period  following  the date of the  Substitute  Form
       W-9. If the holder  furnishes the Exchange  Agent or the Issuers with its
       TIN  within  sixty days after the date of the  Substitute  Form W-9,  the
       Issuers (or the Paying  Agent) shall remit such amounts  retained  during
       the sixty day  period  to the  holder  and no  further  amounts  shall be
       retained or withheld  from payments  made to the holder  thereafter.  If,
       however,  the holder has not provided  the Exchange  Agent or the Issuers
       with its TIN within  such sixty day  period,  the  Issuers (or the Paying
       Agent) shall remit such previously  retained amounts to the IRS as backup
       withholding.  In general,  if a holder is an  individual,  the TIN is the
       Social Security number of such  individual.  If the Exchange Agent or the
       Issuers are not provided  with the correct TIN, the holder may be subject
       to a $50 penalty imposed by the IRS.  Certain holders  (including,  among
       others, all corporations and certain foreign individuals) are not subject
       to these backup  withholding and reporting  requirements.  In order for a
       foreign  individual to qualify as an exempt  recipient,  such holder must
       submit a statement  (generally,  IRS Form W-8), signed under penalties of
       perjury,  attesting to that individual's  exempt status.  Such statements
       can be obtained from the Exchange Agent.

      Failure to complete  the  Substitute  Form W-9 will not, by itself,  cause
      Notes to be deemed invalidly tendered, but may require the Issuers (or the
      Paying Agent) to withhold 31% of the amount of any payment made on account
      of the Exchange  Notes.  Backup  withholding is not an additional  federal
      income tax.  Rather,  the federal income tax liability of a person subject
      to backup  withholding  will be reduced by the amount of tax withheld.  If
      withholding  results in an  overpayment of taxes, a refund may be obtained
      from the IRS.

9.     WAIVER OF CONDITIONS. Subject to limitations set forth in the Prospectus,
       the  conditions  of the Exchange  Offer may be waived by the Issuers,  in
       whole or in part,  at any time or from time to time, in the Issuers' sole
       discretion in the case of any Series A Notes tendered.

   
10.   LOST,  DESTROYED  OR STOLEN  NOTES.  If any  Series A Note has been  lost,
      stolen,  mutilated or  destroyed,  the holder should  promptly  notify the
      Trustee,  IBJ Schroder Bank & Trust Company,  of such fact in writing,  or
      call (212) 858-2103. The holder will then be directed as to the steps that
      must be taken in  order to  replace  the  Series  A Note.  The  Letter  of
      Transmittal and related documents cannot be processed until the procedures
      for replacing  lost,  stolen,  mutilated or destroyed  Series A Notes have
      been followed.
    

11.    REQUEST FOR  ADDITIONAL  COPIES.  Questions  and requests for  additional
       copies of the Prospectus  and this Letter of Transmittal  may be obtained
       from the Exchange Agent at the address and telephone  number set forth in
       the Prospectus.

12.   PARTICIPATING  BROKER-DEALERS.   Each  Holder  which  is  a  Participating
      Broker-Dealer must advise the Exchange Agent as to the number of copies of
      the Prospectus  (including  supplements  and  amendments  thereto) it will
      require in order to  satisfy  the  prospectus  delivery  requirements  for
      resales of Exchange  Notes which are exchanged for Series A Notes acquired
      by it for its own account as a result of  market-making  or other  trading
      activities.

(DO NOT WRITE IN SPACE BELOW)

- --------------------------------------------------------------------------
CERTIFICATE SURRENDERED  EXISTING NOTES TENDERED  EXISTING NOTES ACCEPTED
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
Dated Received
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
Accepted by
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
Checked by
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
- -------------------------------------------------------------------------
- --------------------------------------------------------------------------
Delivery Prepared by
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
Checked by
- --------------------------------------------------------------------------
- --------------------------------------------------------------------------
Date
- --------------------------------------------------------------------------

IMPORTANT TAX INFORMATION

      Under federal income tax laws, a holder whose tendered  Series A Notes are
accepted for payment is required to provide the  Exchange  Agent (as payor) with
such holder's correct TIN on Substitute Form W-9 below or otherwise  establish a
basis for exemption  from backup  withholding.  If such holder is an individual,
the TIN is his social  security  number.  If the Exchange  Agent is not provided
with the  correct  TIN, a $50  penalty  may be imposed by the  Internal  Revenue
Service.

      Certain holders  (including,  among others,  all  corporations and certain
foreign  persons)  are not subject to these  backup  withholding  and  reporting
requirements.  Exempt holders should  indicate their exempt status on Substitute
Form W-9. A foreign  person may qualify as an exempt  recipient by submitting to
the  Exchange  Agent a properly  completed  Internal  Revenue  Service Form W-8,
signed under penalties of perjury,  attesting to that holder's exempt status.  A
Form W-8 can be obtained from the Exchange Agent.

      If backup withholding  applies, the Exchange Agent is required to withhold
20% of any payments made to the holder or other payee. Backup withholding is not
an additional  federal income tax.  Rather,  the federal income tax liability of
persons  subject  to backup  withholding  will be  reduced  by the amount of tax
withheld.  If  withholding  results in an  overpayment of taxes, a refund may be
obtained from the Internal Revenue Service.




<PAGE>


PURPOSE OF SUBSTITUTE FORM W-9

      To  prevent  backup  withholding  on  payments  made with  respect  to the
Exchange  Offer,  the holder is  required  to provide  the  Exchange  Agent with
either:  (i) the holder's  correct TIN by completing the form below,  certifying
that the TIN provided on Substitute  Form W-9 is correct (or that such holder is
awaiting  a TIN) and that (A) the  holder  has  been  notified  by the  Internal
Revenue Service that the holder is subject to backup  withholding as a result of
failure to report all interest or dividends or (B) the Internal  Revenue Service
has  notified  the  holder  that the  holder  is no  longer  subject  to  backup
withholding, or (ii) an adequate basis for exemption.

   
      PAYER'S NAME:  IBJ SCHRODER BANK & TRUST COMPANY
    


- -------------------------------------------------------------------------
   
SUBSTITUTE            Part 1 -  PLEASE  PROVIDE  YOUR TIN     Social
                      IN  THE  BOX  AT  THE   RIGHT   AND    Security
Form   W - 9          CERTIFY  BY   SIGNING   AND  DATING     Number
                      BELOW.                               or Employer
                                                          Identification
                                                              Number
    


                      ---------------------------------------------------
                      ---------------------------------------------------
   
                      Part 2 -  Certification  - Under  penalties of perjury,  I
                      certify that:

                      (1)The number  shown on this form is my  correct  Taxpayer
                         Identification  Number (or I am waiting for a number to
                         be issued to me) and

Department of the     (2)   I  am  not  subject  to  backup  withholding
Treasury                 because:   (a)   I  am   exempt   from   backup
Internal Revenue         withholding,  or (b) I have not  been  notified
Service                  by the  Internal  Revenue  Service  (the "IRS")
                         that I am subject to backup  withholding as a result of
                         a failure to report all interest or  dividends,  or (c)
                         the IRS has notified me that I am no longer  subject to
                         backup withholding.

Payer's  Request for     Certification  Instructions  - You must cross out 
Taxpayer Identification  Item (2) above if you have been notified by the   IRS 
Number("TIN")            that you are currently  subject to backup withholding  
                         because   of    under-reporting interest or  dividends
                         on your tax  return.  However, if after being  notified
                         by the IRS  that you were subject to backup withholding
                         you   received another  notification from the IRS that
                         you are no longer subject  to  backup  withholding, do
                         not cross out such Item (2).
    
                      ---------------------------------------------------
   
      SIGN HERE       SIGNATURE.  . . . . . . . . . . . .   Part 3 ---
                      .  .  . . . . . . . . . . . . . . .
                      . .. . . . . . . . . .
                      DATE.  .  . . . . . . . . . . . . .    Awaiting
                      .  .  . . . . . . . . . . . . . . .     TIN 
                      . . . . . . . . . . .. . . . .
    
- -------------------------------------------------------------------------

   
   NOTE:    FAILURE  TO  COMPLETE  AND  RETURN  THIS  FORM MAY  RESULT IN BACKUP
            WITHHOLDING  OF 31% OF ANY  PAYMENTS  MADE  TO YOU  PURSUANT  TO THE
            OFFER.  PLEASE REVIEW THE ENCLOSED  GUIDELINES FOR  CERTIFICATION OF
            TAXPAYER IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL
            DETAILS.

            YOU MUST COMPLETE THE FOLLOWING  CERTIFICATE  IF YOU CHECKED THE BOX
            IN PART 3 OF SUBSTITUTE FORM W-9.
    


<PAGE>



- -------------------------------------------------------------------------
   
             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER

I certify under penalties of perjury that a taxpayer  identification  number has
not been issued to me, and either (1) I have mailed or delivered an  application
to receive a taxpayer  identification number to the appropriate Internal Revenue
Service Center or Social Security Administration Office, or (2) I intend to mail
or deliver an  application  in the near future.  I  understand  that if I do not
provide a  taxpayer  identification  number by the time of  payment,  31% of all
reportable  payments made to me will be withheld,  but that such amounts will be
refunded to me if I then provide a Taxpayer  Identification  Number within sixty
(60) days.

Signature.  .  . . . . . . . . . . . Date.  .  . . . . . . . . . . . . .
 .  . . . . . . . . . . . . . . . . . . . . . . . . . . . . ., 19 . . .
 .
    
- -------------------------------------------------------------------------



<PAGE>
January 23, 1997
Page 2


                                                                 EXHIBIT 8.1
                                   COX & SMITH
                             I N C O R P O R A T E D
                              ATTORNEYS COUNSELORS



                              112 East Pecan Street
                                   Suite 1800
                          San Antonio, Texas 78205-1521
                                 (210) 554-5500
                               Fax (210) 226-8395



Writer's Direct Number                           Writer's E-Mail Address
(210) 554-5266                                     [email protected]


                                January 23, 1997

Abraxas Petroleum Corporation
500 North Loop 1604 East
Suite 100
San Antonio, Texas 78232

Canadian Abraxas Petroleum Limited
#303, 630 - 6th Avenue S.W.
Calgary, Alberta  T2P 0S8
Canada

                     Re:   Exchange of Series A 11.5% Senior Notes due 2004
                           ------------------------------------------------

Ladies and Gentlemen:

      We have  acted as  counsel  to  Abraxas  Petroleum  Corporation,  a Nevada
corporation  (the  "Company"),  and special  United  States  counsel to Canadian
Abraxas  Petroleum  Limited,  a  Canada  corporation  ("Canadian  Abraxas"  and,
together  with the Company,  the  "Issuers"),  in  connection  with the Issuers'
proposed offer to exchange  $215,000,000  aggregate principal amount of Series B
11.5%  Senior  Notes due 2004 of the Issuers  for a like amount of the  Issuers'
privately placed Series A 11.5% Senior Notes due 2004. The Notes are the subject
of a Registration Statement on Form S-4 (the "Registration Statement") (File No.
333-18673)  filed by the Issuers with the  Securities  and Exchange  Commission.
Capitalized terms not otherwise defined herein shall have the meanings set forth
in the Registration Statement.

      In rendering  our opinion,  we have  examined and relied upon the accuracy
and completeness of the information contained in the Registration  Statement and
in other related documents. As to any facts material to this opinion that we did
not  independently  establish  or verify,  we have relied  upon  representations
furnished to us by the Issuers (the "Representations").  In our examination,  we
have  assumed  the  genuineness  of  all  signatures,  the  authenticity  of all
documents  (or the form of drafts  thereof)  submitted to us as  originals,  the
conformity to original  documents of all documents  submitted to us as certified
or photostatic copies, the authenticity of the originals of such documents, and,
with  respect  to any  drafts,  that the final  executed  documents  will not be
substantially  different  from the drafts  previously  submitted  to us. We have
assumed that the information  presented in such documents or otherwise furnished
to us is  accurate  and  complete  in all  material  respects.  Our  opinion  is
conditioned  upon,  among other  things,  the  Representations,  the initial and
continuing  accuracy of the  information  and  representations  set forth in the
documents  referred  to  above,  including  the  Representations,   and  on  the
assumption  that the Exchange Offer will be  consummated in accordance  with the
descriptions  set forth in such documents,  including the  Representations.  Any
change  in  such  information  or  Representations  could  render  the  affected
provisions of this opinion inoperative.

      This opinion  expresses our views as to United States  federal  income tax
laws in effect as of the date hereof only,  including the Internal  Revenue Code
of  1986,  as  amended,  applicable  Treasury  Regulations  (including  proposed
Regulations),  published  rulings and  administrative  practice of the  Internal
Revenue  Service (the "IRS") and court  decisions.  Our opinion does not address
any foreign, state or local tax consequences of the Exchange Offer. This opinion
represents our best legal judgment as to the matters  addressed  herein,  but is
not binding on the IRS or the courts.  Accordingly,  no  assurance  can be given
that the legal conclusions expressed herein, if contested, would be sustained by
a court.  Furthermore,  the authorities upon which we rely are subject to change
either  prospectively or  retroactively,  and any variation or difference in the
facts and  representations  as set  forth in the  Registration  Statement  might
affect the conclusions stated herein.

      Based solely upon the  foregoing,  we are of the opinion that,  for United
States federal income tax purposes:

             (i) No gain or loss will be recognized by the Issuers in connection
      with the Exchange Offer;
            (ii) No gain or loss will be recognized by the holders of the Series
      A Notes upon their  receipt of the  Exchange  Notes in exchange  for their
      Series A Notes;
            (iii) The tax basis of the Exchange Notes received by the holders of
      the  Series A Notes  will be the same as the tax  basis of their  Series A
      Notes exchanged therefor; and
            (iv) The holding  period of the  Exchange  Notes in the hands of the
      holders  will include the holding  period of the Series A Notes  exchanged
      therefor,  provided that such Series A Notes are held as capital assets on
      the date of the consummation of the Exchange Order.

      This  opinion is  rendered  solely  for your  benefit  and the  benefit of
holders of Exchange  Notes in  connection  with the  Exchange  Offer.  We hereby
consent  to the  filing  of  this  opinion  as an  exhibit  to the  Registration
Statement,  and we  further  consent  to the use of our name  under the  caption
"Certain United States and Canadian Income Tax  Consequences"  in the Prospectus
forming a part of said Registration  Statement.  Except as stated above, without
our prior  consent,  this  opinion may not be  furnished or quoted to, or relied
upon by, any other person or entity for any purpose.

                                    Very truly yours,

                                    COX & SMITH INCORPORATED


                                    By:         /s/ Robert W. Nelson
                                       ---------------------------------
                                          For the Firm


<PAGE>




                                                            Exhibit 8.2


                            Burnet, Duckworth &Palmer
                              First Canadian Centre
                            1400, 350 7th Avenue S.W.
                        Calgary, Alberta, Canada T2P 3N9




December 20, 1996


Canadian Abraxas Petroleum Limited
500 N. Loop, 1604 East, Suite 100
San Antonio, Texas  78232
U.S.A.


Dear Sirs:

Re:   Canadian  Abraxas  Petroleum  Limited  ("Canadian  Abraxas") - Exchange of
      Exchange Notes pursuant to the Exchange Offer

The following opinion is restricted to a person who is:

a.    a person who is neither resident nor deemed to be resident in Canada,  nor
      at any time has been a resident in Canada;

b.    a person who neither  holds the  Exchange  Notes,  nor is deemed to use or
      hold,  the  Exchange  Notes or the Notes in the  course of  carrying  on a
      business in Canada; and

c.    a person who deals at arm's length with Canadian  Abraxas  throughout  the
      period which is relevant for this opinion  (referred to  hereinafter  as a
      "non-resident person").

The opinion  expressed  herein are based on the provisions of the Income Tax Act
(Canada) (the "Act"),  the Income Tax Regulations  taking into consideration all
published proposals for the amendment thereof issued to the date hereof.

Based on the foregoing,  we are of the opinion that the exchange of the Exchange
Notes  for the  Notes  will not  constitute  an event  which  will  give rise to
taxation under the Act to non-resident persons.

This opinion is rendered solely for the benefit of the addressee and the benefit
of holders of  Exchange  Notes in  connection  with  Exchange  Offer.  We hereby
consent  to the  filing  of  this  opinion  as an  exhibit  to the  Registration
Statement and any attachments thereto. Except as stated above, without our prior
consent,  this  opinion may not be  furnished or quoted to or relied upon by any
other person.

Yours very truly,

BURNET, DUCKWORTH & PALMER


/s/ John A. Brussa


<PAGE>



                                                                   EXHIBIT 12.1
<TABLE>
<CAPTION>

      STATEMENT REGARDING COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
       AND RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK
                                    DIVIDENDS


                                                                                                    Nine Months Ended
                                             Year Ended December 31,                                       September 30,
                         -------------------------------------------------------------------   ------------------------------
                                                                                   Pro                                 Pro
                                                                                  Forma                               Forma
                           1991         1992        1993       1994       1995     1995          1995       1996       1996
                         --------     -------    ---------  ---------   -------- -----------   --------   ---------  --------
                             (dollars in thousands)

Consolidated  pretax
  income(loss) from
<S>                       <C>         <C>         <C>        <C>         <C>      <C>          <C>       <C>        <C>      
  continuing operations   $    (15)   $ (1,072)   $  1,393   $    113    $(1,208) $ (16,500)   $    684  $     122  $ (8,474)
Interest ..............        132         906       2,531      2,359      3,911     24,276       2,915      2,142    18,151
Net amortization  of
  debt issuance
  expense .............       --          --           649        400        214      1,025         120        192       769
                          --------    --------    --------   --------   --------   --------    --------   ---------  -------
Earnings (loss) .......   $    117    $   (166)   $  1,787   $  2,872   $  2,917   $  8,801    $  2,351   $  2,456 $  10,446
                          ========    ========    ========   ========   ========   ========    ========   ========   ========

Interest ..............   $    132    $    906    $  2,531   $  2,359   $  3,911   $ 24,276    $  2,915   $  2,142  $ 18,151
Net amortization  of
  debt issuance expense        --          --          649        400        214      1,025         120        192        769
    Fixed Charges .....        132         906       3,180      2,759      4,125     25,301       3,035      2,334     18,920
  Ratio or (deficiency)
      of   Earnings   to 
      Fixed Charges       $    (15)   $ (1,072)   $ (1,393)   1.04 to 1 $ (1,208)  $(16,500)   $   (684)  1.05 to 1 $ (8,474)       
                          ========    ========    ========   ========   ========   ========    ========   ========   ========


  Preferred  Stock 
      dividends                249         249         186        183        366        366         274        274      274
                          --------     -------    --------   --------   --------  ---------    --------   --------   ------
  Fixed  Charges
      including Preferred
      Stock dividends          381       1,155       3,366      2,942      4,491     25,667       3,309      2,608   19,194
                          --------     -------    --------   --------   --------  ---------    --------   --------   ------
  Ratio or (deficiency)
      of Earnings to
      combined Fixed     
      Charges and
      Preferred Stock
      dividends            $ (264)     $(1,321)    $(1,579)   $  (70)    $(1,574)  $(16,866)     $ (958)    $ (152) $(8,748)
                          ========     ========    ========   ========   ========   ========    ========   ======== ========

</TABLE>



<PAGE>


                                                           EXHIBIT 23.1

                         CONSENT OF INDEPENDENT AUDITORS


We consent to the  reference to our firm under the caption  "Experts" and to the
use of our reports dated March 19, 1996 except for paragraph 2 of Note 16, as to
which the date is March 21,  1996 with  respect  to the  consolidated  financial
statements of Abraxas Petroleum Corporation, August 30, 1996 with respect to the
statements  of combined oil and gas revenues  and direct  operating  expenses of
certain  overriding  royalty interests in the Portilla Field acquired by Abraxas
Petroleum  Corporation,  and  October  7, 1996  with  respect  to the  financial
statements  of Canadian  Abraxas  Petroleum  Limited,  in Amendment No. 1 to the
Registration Statement (Form S-4 No. 333-18673) of Abraxas Petroleum Corporation
and Canadian Abraxas  Petroleum  Limited for the Registration of $215,000,000 of
11.5% Senior Notes due 2004, Series B.



                                    /s/ Ernst & Young LLP


San Antonio, Texas
January 20, 1997



<PAGE>


                                                            EXHIBIT 23.5




INDEPENDENT AUDITORS' CONSENT

We consent to the use in this  Amendment  No. 1 to  Registration  Statement  No.
333-18673  of Abraxas  Petroleum  Corporation  and  Canadian  Abraxas  Petroleum
Limited of our report on Enserch  Exploration,  Inc.'s  Wamsutter  Area  Package
dated  June  26,  1996  appearing  in the  Prospectus,  which  is a part of such
Registration  Statement,  and to the reference to us under the heading "Experts"
in such Prospectus.



/s/ DELOITTE & TOUCHE LLP
Dallas, Texas

January 20, 1997



<PAGE>



                                                            EXHIBIT 23.6


                  CONSENT OF INDEPENDENT CHARTERED ACCOUNTANTS


To the Board of Directors of
CGGS Canadian Gas Gathering Systems Inc.


We consent to the use of our report  included herein and to the reference to our
firm  under  the  heading  "Experts"  in the  Prospectus  and  the  Registration
Statement.


/s/ KPMG
Chartered Accountants

Calgary, Canada
January 20, 1997



<PAGE>


                                                           EXHIBIT 24.7

                                                  POWER OF ATTORNEY


      KNOW ALL MEN BY THESE PRESENTS,  that the person whose  signature  appears
below constitutes and appoints Robert L. G. Watson and Chris Williford, and each
of them, as his true and lawful attorneys-in-fact and agents, with full power of
substitution  and  resubstitution,  for him and in his name, place and stead, in
any and all  capacities,  to sign  the  Registration  Statement  on Form  S-4 of
Abraxas Petroleum  Corporation and Canadian Abraxas Petroleum Limited and any or
all amendments  (including  post-effective  amendments)  thereto and to file the
same, with all exhibits  thereto,  and other documents in connection  therewith,
with   the   Securities   and   Exchange   Commission,    granting   unto   said
attorneys-in-fact  and agents,  and each of them, full power and authority to do
and perform each and every act and thing  requisite  and necessary to be done in
and about the  foregoing,  as fully to all intents  and  purposes as he might or
could  do  in  person,   hereby   ratifying   and   confirming   all  that  said
attorneys-in-fact and agents, or their substitutes,  may lawfully do or cause to
be done by virtue hereof.


      Dated:  December 23, 1996.



                                    /s/ Richard M. Riggs
                                    Richard M. Riggs






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