ABRAXAS PETROLEUM CORP
424B3, 1997-02-05
CRUDE PETROLEUM & NATURAL GAS
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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 MARCH 14, 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

<PAGE>

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 March 14,
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.

                                       2
<PAGE>

       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 February 5, 1997.


                                       3
<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.


                                       4
<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


                                      5
<PAGE>

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>

                                   Purchase     Purchase   Cummulative   Cummulative      June 30, 1996
Property                             Date       Price(1)    CapEx (2)    Cash Flow (3)       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

                                       6
<PAGE>

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

                                       7
<PAGE>

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.

 
                                      8
<PAGE>


       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.


                                       9

<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.


                                       10
<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
                                        March 14, 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."

                                       11
<PAGE>

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
                                        11.5% Senior Notes due 2004.

                                       12
<PAGE>

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.


                                       13
<PAGE>

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."

                                       14

<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.


                                       15
<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) ...      --         --         --         --         --         --          --         --         --
                                                                                                             September 30, 1996(2)
                                                                                                            ----------------------- 
                                                                                                        Historical    Pro Forma
                                                                                                            ----------  ----------- 
Consolidated Balance Sheet Data:                                                                            (dollars in thousands)
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.


                                       16
<PAGE>

(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.

                                       17

<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.


                                       18
<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."

                                       19

<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

                                       20
<PAGE>

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."

                                       21
<PAGE>


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

                                       22

<PAGE>

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.


                                       23
<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

                                       24
<PAGE>

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."


                                       25
<PAGE>

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

                                       26

<PAGE>

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.

                                       27

<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.

                                       28
<PAGE>

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 March
14, 1997, unless extended.  The term "Expiration Date" means 5:00 p.m., New York
City time,  on March 14 , 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.


                                       29
<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 March
14 , 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.

                                       30
<PAGE>


       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

                                       31
<PAGE>

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

                                       32
<PAGE>

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 March 14, 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

                                       33
<PAGE>

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.


                                       34
<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.


                                       35
<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)                   26,848
                                 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.

                                       36
<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.


                                       37
<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.


                                       38
<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.

                                       39
<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.

                                       40
<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.

                                       41
<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
                                           ====                ====

                                       42
<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
                                                                     ==========

                                       43

<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
                                                                     ===========

                                       44

<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
retirementof certain related debt                                        $(223)
                                                                     ===========

                                       45

<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>

                                       46
<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)(4)             $(1,323) $(7,184) $(1,368) $(1,605)  $2,633  $(2,465) $  7,682
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.

                                       47
<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:
<TABLE>
<CAPTION>


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

                                    1993    1994       1995    1995       1996
                                    ----    ----       ----    ----       ----
Operating revenue:
<S>                              <C>      <C>       <C>      <C>      <C>      
     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
</TABLE>
 
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

                                       48
<PAGE>

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.

                                       49
<PAGE>

               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.


                                       50
<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

                                       51
<PAGE>


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

                                       52
<PAGE>

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.


                                       53
<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.


                                       54
<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.


                                       55
<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

                                       56
<PAGE>

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

                                       57
<PAGE>

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,

                                       58
<PAGE>

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

                                       59
<PAGE>

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

                                       60
<PAGE>

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."


                                       61
<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.


                                       63
<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.


                                       64
<PAGE>


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."

                                       65
<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

                                       66
<PAGE>

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

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 (Mmcf) 985.4  2,392.9  3,552.7 23,825.5  2,625.4   16,533.2

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

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.

                                       67
<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

                                       68
<PAGE>

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

                                       69
<PAGE>

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,

                                       70
<PAGE>

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.

  
                                     71
<PAGE>

               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

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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

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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

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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.


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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.


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                                   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. Watson   46    Chairman  of the Board,  President  and Chief
                           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

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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

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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.


                                       79
<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
                                             Annual          of Shares
                                           Compensation      Underlying
  Name and Principal Position    Year       Salary ($)      Options/SARs
  ---------------------------   ------    ---------------  --------------

  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.


                                       80
<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


                                       81
<PAGE>

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.


                                       82
<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)
- ---------
   *  Less than 1%

                                       83
<PAGE>


(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.

                                       84
<PAGE>

(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.

                                       85
<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:

                                       86
<PAGE>


                                              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

                                       87
<PAGE>

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.


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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

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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

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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.

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<PAGE>

               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

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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

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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.

                                       94
<PAGE>


               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.


                                       95
<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

                                       96
<PAGE>

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

                                       97
<PAGE>

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

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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

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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."

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<PAGE>

               "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)

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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

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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

                                      103
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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

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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

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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

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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

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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;


                                      108
<PAGE>

               (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:

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<PAGE>

               (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;

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               (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

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<PAGE>

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."

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<PAGE>
               "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.

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<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

                                      114
<PAGE>

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.

                                      115
<PAGE>


               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.

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<PAGE>


               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

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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;

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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.

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<PAGE>

               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

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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

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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

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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

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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.


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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.


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                        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.

                                      126
<PAGE>


               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).

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<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

                                      128
<PAGE>

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.

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<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.

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<PAGE>


               "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.

                                      131
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                          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>
<TABLE>
<CAPTION>


                 ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                           CONSOLIDATED BALANCE SHEETS


                                                   ASSETS

                                              December 31         September 30
                                       ---------------------------
                                           1994          1995         1996
                                       ------------- ------------- -------------
                                                                   (Unaudited)
Current assets:
<S>                                    <C>          <C>            <C>         
  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
                                       ============= ============= =============
</TABLE>

                             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>
                              See accompanying notes.  
                                   F-7

<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>

                             See accompanying notes.
                                      F-7
<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>
                             See accompanying notes.
                                      F-8

<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.
                                      F-8

<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)     (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-17
<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

                                      F-30
<PAGE>

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 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


                                      F-49
<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             
          development costs ........        14,280     (21,828)      4,903
        Accretion of discount ......         2,151       3,248       3,326
        Net change in income taxes .           190       5,765         240
        Additions, revisions and             
          offer changes ............         9,876      10,080        (125)
                                       =====================================
            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                  
   -0- shares (Subscribed 1 share)..............                 $    1
  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>









                                       A-1

<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  March 3,  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
                                                February 5, 1997



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