ABRAXAS PETROLEUM CORP
10-K, 1999-04-13
CRUDE PETROLEUM & NATURAL GAS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 10-K
                                   (Mark One)

[X]ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES  EXCHANGE ACT
OF 1934

                   For the Fiscal Year Ended December 31, 1998

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

                         Commission File Number 0-19118

                          ABRAXAS PETROLEUM CORPORATION

             (Exact name of Registrant as specified in its charter)


                Nevada                              74-2584033
- --------------------------------------------------------------------------------
     (State or Other Jurisdiction of     (I.R.S. Employer Identification Number)
      Incorporation or Organization)
- ------------------------------------------------ -------------------------------

                        500 N. Loop 1604 East, Suite 100
                            San Antonio, Texas 78232
                    (Address of principal executive offices)

        Registrant's telephone number,
        including area code                      (210)  490-4788

           SECURITIES REGISTERED PURSUANT TO SECTION 12(b) OF THE ACT:
                                      None

           SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:
                     Common Stock, par value $.01 per share

        Indicate by check mark whether the  registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the  Securities  Exchange  Act of
1934  during  the  preceding  12 months  (or for such  shorter  period  that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days. Yes X No __

        Indicate by check mark if disclosure of  delinquent  filers  pursuant to
Item 405 of Regulation S-K is not contained  herein,  and will not be contained,
to the best of  registrant's  knowledge,  in  definitive  proxy  or  information
statements  incorporated  by  reference  in Part  III of this  Form  10-K or any
amendment to this Form 10-K. [ ]

        The aggregate market value of the voting stock (which consists solely of
shares of Common Stock) held by non-affiliates of the registrant as of March 22,
1999,  (based  upon the average of the $2.06 per share "Bid" and $2.44 per share
"Asked" prices), was approximately $10,725,000 on such date.

        The number of shares of the issuer's  Common  Stock,  par value $.01 per
share,  outstanding as of March 22, 1999 was 6,330,426 shares of which 4,766,739
shares were held by non-affiliates.

Documents  Incorporated  by  Reference:   Portions  of  the  registrant's  Proxy
Statement  relating to the 1999 Annual Meeting of Shareholders to be held on May
28, 1999 have been incorporated by reference herein (Part III).



<PAGE>


                          ABRAXAS PETROLEUM CORPORATION
                                    FORM 10-K
                                TABLE OF CONTENTS

                                     PART I
                                                                        Page

Item 1.  Business. ............................................................4
         General  .............................................................4
         Business Strategy ....................................................5
         Recent Developments...................................................5
         Markets and Customers.................................................6
         Risk Factors..........................................................6
         Regulation of Crude Oil and Natural Gas Activities...................12
         Natural Gas Price Controls...........................................12
         State Regulation of Crude Oil and Natural Gas Production.............14
         Royalty Matters......................................................15
         Environmental Matters  ..............................................16
         Employees............................................................18

Item 2.  Properties...........................................................19
         Primary Operating Areas..............................................19
         Exploratory and Developmental Acreage................................20
         Productive Wells.....................................................20
         Reserves Information.................................................21
         Crude Oil and Natural Gas Production and Sales Price ................22
         Drilling Activities..................................................23
         Office Facilities....................................................24
         Other Properties.....................................................24

Item 3.  Legal Proceedings....................................................24

Item 4.  Submission of Matters to a Vote of
           Security Holders...................................................24
Item 4a. Executive Officers of the Company....................................24

                                     PART II

Item 5.  Market for Registrant's Common Equity
           and Related Stockholder Matters....................................25
         Market Information...................................................25
         Holders..............................................................26
         Dividends............................................................26

Item 6.  Selected Financial Data..............................................27

Item 7.  Management's Discussion and Analysis of
         Financial Condition and Results of Operations........................27
         Results of Operations................................................27
         Liquidity and Capital Resources......................................30

Item 7a. Quantitative and Qualitative Disclosures about Market Risk...........36

Item 8.  Financial Statements and Supplementary Data..........................34

Item 9.  Changes in and Disagreements with Accountants
          on Accounting and Financial Disclosure..............................37




                                       2
<PAGE>
                                    PART III



Item 10.  Directors and Executive Officers of the Registrant  ................37
Item 11.  Executive Compensation..............................................37

Item 12.  Security Ownership of Certain Beneficial Owners and Management......37

Item 13.  Certain Relationships and Related Transactions......................37



                                            PART IV



Item 14.  Exhibits, Financial Statement Schedules,
            and Reports on Form 8-K...........................................38





                                       3
<PAGE>
                DISCLOSURE REGARDING FORWARD-LOOKING INFORMATION

        This report includes "forward-looking  statements" within the meaning of
Section 27A of the  Securities  Act of 1933, as amended,  and Section 21E of the
Securities  Exchange  Act of 1934.  All  statements  other  than  statements  of
historical  facts  included in this report  regarding  the  Company's  financial
position, liquidity, cash flow from operations,  internal cash flow projections,
business  strategy,  budgets,  reserve  estimates,  development and exploitation
opportunities  and  projects,  behind pipe zones,  classification  of  reserves,
projected  costs,  potential  reserves,  availability  or sufficiency of capital
resources  and  plans  and  objectives  of  management  for  future   operations
including,   but  not  limited  to,  statements  including,  any  of  the  terms
"anticipates",   "expects",  "estimates",   "believes"  and  similar  terms  are
forward-looking statements.  Although the Company believes that the expectations
reflected in such  forward-looking  statements  are  reasonable,  it 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 Company's
expectations  ("Cautionary  Statements")  are disclosed under "Risk Factors" and
elsewhere in this report including,  without limitation, in conjunction with the
forward-looking  statements  included in this report. All subsequent written and
oral forward-looking  statements  attributable to the Company, or persons acting
on its behalf,  are  expressly  qualified  in their  entirety by the  Cautionary
Statements.

PART I

Item 1. Business

General

        Abraxas Petroleum  Corporation,  a Nevada corporation  ("Abraxas" or the
"Company"),   is  an  independent   energy  company  engaged  primarily  in  the
acquisition,  exploration,  exploitation 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
characterized  by a concentration  of operations,  significant and  quantifiable
development potential,  historically low operating expenses and the potential to
reduce general and administrative ("G&A") expense per Mcfe. The Company seeks to
complement   its   acquisition   and   development   activities  by  selectively
participating in exploration  projects with experienced  industry partners.  The
Company's principal areas of operation are Texas and western Canada. At December
31, 1998, the Company owned interests in 766,494 gross acres (494,647 net acres)
and operates properties  accounting for 69% of its PV-10,  affording the Company
substantial  control over the timing and  incurrence  of  operating  and capital
expenditures.  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.  An Mcf is one thousand cubic feet of natural gas. MMcf is
used to  designate  one million  cubic feet of natural gas and Bcf refers to one
billion cubic feet of natural gas. Mcfe means thousands of cubic feet of natural
gas equivalents,  using a conversion ratio of one barrel of crude oil to six Mcf
of natural gas.  MMcfe means  millions of cubic feet of natural gas  equivalents
and Bcfe means billions of cubic feet of natural gas  equivalents.  The term Bbl
means  one  barrel  of crude oil and  MBbls is used to  designate  one  thousand
barrels of crude oil.

        At December 31, 1998, the Company's estimated total proved reserves were
244 Bcfe and  aggregate  PV-10 was $182  million.  As of December 31, 1998,  the
Company had net natural gas processing  capacity of 108 MMcf per day through its
19 natural gas processing  plants and compression  facilities in Canada,  giving
the Company  substantial  control over its  Canadian  production  and  marketing
activities.
                                       4
<PAGE>
                                Business Strategy

        The Company's primary business  objectives are to increase its reserves,
production and cash flow through the following:

o    Improved Liquidity. In March 1999, the Company sold $63.5 million aggregate
     principal  amount of 12.875%  Senior  Secured  Notes due 2003 (the "Secured
     Notes"). The sale of the Secured Notes increased the Company's cash balance
     to  approximately  $21 million,  allowing the Company to meet its near-term
     debt service  requirements and facilitating  limited capital  expenditures.
     The Company has historically  funded its operations  primarily through cash
     flow from  operations and borrowings  under the Credit Facility (as defined
     below). As a result of the sale of the Secured Notes, the Company's ability
     to incur additional indebtedness will be substantially limited and thus, in
     the current  environment of depressed crude oil and natural gas prices, the
     Company will rely on cash on hand, cash flow from  operations,  asset sales
     and  equity  issuances  to fund  crude  oil and  natural  gas  exploitation
     activities and acquisitions.

o   Low Cost  Operations.  The Company  seeks to maintain low  operating and G&A
    expenses per Mcfe by operating a majority of its  producing  properties  and
    related  assets and by  maintaining  a high rate of production on a per well
    basis.  As a result of this  strategy,  the  Company has  achieved  per unit
    operating and G&A expenses that compare favorably with similar companies and
    that have  historically  been lower than currently  depressed  crude oil and
    natural gas prices realized by the Company.

o   Exploitation of Existing Properties.  The Company will allocate a portion of
    its operating  cash flow to the  exploitation  of its producing  properties.
    Management believes that the proximity of the Company's undeveloped reserves
    to existing  production makes development of these properties less risky and
    more  cost-effective  than other  drilling  opportunities  available  to the
    Company.  Given the Company's high degree of operating  control,  the timing
    and incurrence of operating and capital  expenditures  is largely within the
    Company's discretion.

o   Producing Property  Acquisitions.  As cash flow permits, the Company intends
    to continue to acquire  producing  crude oil and natural gas properties that
    can  increase  cash  flow,   production  and  reserves  through  operational
    improvements  and  additional  development.  The  Company  expects  that the
    combination  of low crude oil and  natural  gas  prices,  limited  access to
    liquidity through the capital markets and reduced availability on commercial
    bank  lines  will   result  in  an  increase   in   attractive   acquisition
    opportunities  offered  by  crude  oil and  natural  gas  companies  seeking
    additional liquidity.

o   Focused Exploration  Activity. In periods of increased crude oil and natural
    gas prices,  the Company intends to allocate a portion of its capital budget
    to the drilling of exploratory wells that 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 drilling risks
    while still benefiting from the potential for significant reserve additions.

Recent Developments

       In  November  1998,  Abraxas  sold  all of  its  interests  in  producing
properties  located in the Wamsutter area of southwestern  Wyoming (the "Wyoming
Properties") to a limited  partnership (the  "Partnership") for $58.6 million in
cash.  A  subsidiary  of  Abraxas  owns a one  percent  equity  interest  in the
Partnership  and  acts as  general  partner  of the  Partnership.  Abraxas  also
receives a management fee and  reimbursement  of certain overhead costs from the
Partnership.

       In January  1999,  Canadian  Abraxa  Petroleum  Limited,  a  wholly-owned
subsidiary of the Company  ("Canadian  Abraxas") acquired all of the outstanding
common  shares of New Cache  Petroleums  Ltd.  ("New Cache") for an aggregate of
$78.0 million in cash and the assumption of approximately  $10.0 million in debt
(the "New Cache Debt").  New Cache is an independent  energy company  engaged in
the acquisition,  exploration,  development, production and gathering of natural
gas and crude oil. New Cache owns  interests in 285 gross wells (88.5 net wells)
and 445,294 gross (256,524 net) acres located  primarily in western  Canada,  as
well as three natural gas processing plants. At December 31, 1998, New Cache had
estimated  total  proved  reserves of 77 Bcfe (75%  natural gas) with a PV-10 of
$55.6 million all of which were proved developed.

       In March 1999, the Company sold the Secured Notes.  The net proceeds from
the sale of the Secured Notes, after deducting estimated offering expenses,  was
                                       5
<PAGE>
approximately  $61  million.   The  Company  used  the  net  proceeds  to  repay
outstanding  indebtedness  under its  revolving  credit  facility  (the  "Credit
Facility")  of  approximately  $34.5  million  and the New  Cache  Debt with the
balance of approximately $16.5 million to be used for general corporate
purposes,  including  interest  payments on Abraxas' and Canadian Abraxas' 11.5%
Senior Notes due 2004, Series D (the "Series D Notes").

Markets and Customers

        The revenues 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 and the
Canadian  economies  (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  revenues,
profitability and cash flow.

        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.  See  "Management's  Discussion  and  Analysis of  Financial
Condition and Results of Operations - Liquidity and Capital Resources.

        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, 1998, 4 purchasers  accounted for
approximately  58% 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.

Risk Factors
Lack of Liquidity

        The Company has historically funded its operations primarily through its
cash flow from  operations  and borrowings  under the Credit  Facility and other
credit  sources.  Due to  severely  depressed  crude oil and  natural gas market
prices, the Company's cash flow from operations has been substantially  reduced.
The Company  anticipates  that it will have two  principal  sources of liquidity
during the next 12 months: (i) cash on hand, including the net proceeds from the
sale of the Secured  Notes and after the repayment of the New Cache Debt and all
amounts  outstanding  under  the  Credit  Facility  and (ii) cash  generated  by
operations.  See "-- High  Degree of  Leverage,"  "Management's  Discussion  and
Analysis of Financial  Condition  and Results of  Operations  --  Liquidity  and
Capital  Resources"  and the  Consolidated  Financial  Statements  and the notes
thereto.

        The  Company's  ability to raise funds through  additional  indebtedness
will be  substantially  limited  by the  terms of the  Indenture  governing  the
Secured Notes (the "Secured Notes  Indenture")  and the Indenture  governing the
Series D Notes (the "Series D Indenture"  and,  together  with the Secured Notes
Indenture, the "Indentures").  Additionally,  substantially all of the Company's
crude oil and natural gas properties  and natural gas processing  facilities are
subject  to a lien or  floating  charge for the  benefit  of the  holders of the
Secured  Notes,  further  limiting  the  Company's  ability to incur  additional
indebtedness.  The Company may also choose to issue  equity  securities  or sell
certain of its  assets to fund its  operations,  although  the  Indentures  will
substantially  limit the  Company's use of the proceeds of any such asset sales.
Due to the  Company's  diminished  cash flow from  operations  and the resulting
depressed  prices  for its  common  stock,  there can be no  assurance  that the
Company would be able to obtain equity  financing on terms  satisfactory  to the
Company.
                                       6
<PAGE>
        The Company has  implemented  a number of measures to conserve  its cash
resources,  including  postponement  of exploration  and  development  projects.
However, while these measures will help conserve the Company's cash resources in
the near term,  they will also limit the  Company's  ability  to  replenish  its
depleting  reserves,  which could negatively impact the Company's operating cash
flow and results of operations in the future. See "-- Depletion of Reserves."

High Degree of Leverage

        As of December  31, 1998,  the  Company's  total debt and  stockholders'
equity  (deficit)  were  approximately   $299.7  million  and  $(63.5)  million,
respectively.  In addition,  the Company had $22.3  million of unused  borrowing
capacity  under the Credit  Facility at December 31, 1998. In January 1999,  the
Company and Canadian  Abraxas  completed the  acquisition of New Cache requiring
approximately  $61  million  in cash  and  approximately  $17.0  million  of the
available  borrowing  capacity  under the  Credit  Facility.  In March  1999 the
Company sold $63.5 million of the Secured Notes and repaid all amounts due under
the  Credit  Facility  and  the New  Cache  Debt.  After  giving  effect  to the
acquisition of New Cache and the sale of the Secured Notes,  the Company's total
debt and  stockholders'  equity (deficit) would have been  approximately  $347.5
million  and  $(90.0)  million at  December  31,  1998.  The  Company  may incur
additional  indebtedness in the future in connection with acquiring,  developing
and exploiting  producing  properties,  although the Company's  ability to incur
additional  indebtedness is limited by the terms of the Indentures.  The Secured
Notes are secured by substantially all of the Company's  existing and future oil
and gas producing properties.

        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 the
Secured  Notes and the  Series  D.  Notes  and will not be  available  for other
purposes;  (ii) covenants  contained in the Indentures  will limit the Company's
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 will be  substantially
limited.

        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,
and cash currently on hand,  including the proceeds from the sale of the Secured
Notes,  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  remainder  of 1999.  See the
Company's   Consolidated   Financial   Statements  and  the  notes  thereto  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.  The  Company's  cash  flow from  operations  will be
negatively affected by among other things, currently depressed commodity prices.
Further,  the Company's  operating cash flow could be negatively affected by the
Company's limited ability, due to its diminished liquidity and ability to borrow
funds, to acquire producing properties, to undertake exploration and development
projects and to otherwise replenish its depleting reserves. See "-- Depletion of
Reserves."

        If the Company is unable to generate  cash flow from  operations  in the
future to service the Notes,  the Series D Notes and its other  debt,  it may be
required  to  refinance  all or a portion  of its debt or to  obtain  additional
financing. The Company's ability to refinance all or a portion of its debt or to
obtain additional financing will be substantially limited under the terms of the
Indentures.  Also,  substantially all of the Company's crude oil and natural gas
properties  and  natural  gas  processing  facilities  are  subject to a lien or
floating  charge for the  benefit of the  holders of the Notes.  There can be no
assurance  that any such  refinancing  would be possible or that any  additional
financing  could be obtained.  In addition,  the Secured  Notes and the Series D
Notes  are  subject  to  certain  limitations  on  redemption.  See "--  Lack of
Liquidity" and "Management's  Discussion and Analysis of Financial Condition and
Results of Operations --Liquidity and Capital Resources."
                                       7
<PAGE>
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.  The
Company's ability to acquire or find additional reserves in the near future will
be  severely  diminished  by  its  lack  of  available  funds  for  acquisition,
exploration  and development  projects.  The Company has implemented a number of
measures to conserve its cash resources,  including  postponement of exploration
and development projects.  However,  while these measures will help conserve the
Company's  cash  resources in the near term,  they will also limit the Company's
ability to replenish its depleting  reserves,  which could negatively impact the
Company's operating cash flow in the future. See "-- Lack of Liquidity."

        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  Indentures,  the Company's  ability to obtain
additional  financing in the future for acquisitions and capital expenditures is
limited.

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  governmental  agencies,  the United
States and foreign  governments and international  cartels.Prices  for crude oil
and natural gas have declined to historic lows on an  inflation-adjusted  basis.
There can be no assurance  that  commodity  prices will rise or will not further
decrease.  These external  factors and the volatile nature of the energy markets
make it  difficult to estimate  future  prices of crude oil and natural gas. The
substantial  or extended  decline in the prices of crude oil and natural gas has
had 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.

        The Company periodically reviews the carrying value of its crude oil and
natural gas properties  under the full cost  accounting  rules of the SEC. Under
these rules,  capitalized costs of proved oil and natural gas properties may not
exceed the present value of proved reserves,  discounted at 10%.  Application of
the ceiling test requires  pricing future revenue at the  unescalated  prices in
effect as of the end of each  fiscal  quarter  and  requires  a  write-down  for
accounting  purposes if the ceiling is exceeded,  even if prices were  depressed
for only a short  period of time.  The Company was  required to  write-down  the
carrying  value of its crude oil and natural gas properties at December 31, 1998
by $61.2  million and may be required to  write-down  the carrying  value of its
crude oil and  natural gas  properties  in the future when crude oil and natural
gas prices are depressed or unusually  volatile.  When a write-down is required,
it results in a charge to earnings, but does not impact cash flow from operating
activities.  The Company  sustained  a charge to  earnings  of $61.2  million at
December 31, 1998, as a result of the write-down. Once incurred, a write-down of
crude oil and natural gas  properties  is not  reversible  at a later date.  See
"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
                                        8
<PAGE>
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.  See  "Management's  Discussion  and  Analysis of  Financial
Condition and Results of Operations -- Liquidity and Capital Resources."

Reliance on Estimates of Proved Reserves and Future Net Revenue Information

        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 report 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  are based on the  assumption  that future  crude oil and natural gas
prices remain the same as crude oil and natural gas prices at December 31, 1998.
The average sales prices as of such date used for purposes of such  estimates of
the Company were $9.95 per Bbl of crude oil, $8.97 per Bbl of NGLs and $1.90 per
Mcf of natural gas. It is also assumed that the Company will make future capital
expenditures  of  approximately  $31.7  million  in  the  aggregate,  which  are
necessary  to develop and realize  the value of proved  undeveloped  reserves on
these  properties.  Any  significant  variance  in  actual  results  from  these
assumptions  could also  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."

Net Losses

        The  Company  has  experienced  recurring  losses.  For the years  ended
December 31, 1994,  1995, 1997 and 1998, the Company recorded net losses of $2.6
million,  $1.6  million  $6.7  million  and  $84.0  million,  respectively.  See
"Management's  Discussion  and Analysis of Financial  Conditions  and Results of
Operations" and the Company's  Consolidated  Financial  Statements and the notes
thereto  included in this  document.  There can be no assurance that the Company
will become profitable in the future.

Foreign Operations

        The Company's  operations  are 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
receives 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's  stockholders'  equity was
negatively   impacted  by   approximately   $6.0  million  during  1998  due  to
fluctuations in the foreign currency translation rate. The Company may from time
to time engage in hedging programs intended to reduce the Company's  exposure to
currency fluctuations.

Integration of Operations

        The Company's future operations and earnings will be dependent, in part,
upon the Company's  ability to integrate the operations of New Cache.  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.

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,
                                       9
<PAGE>
formations  with abnormal  pressures,  cratering and crude oil spills and fires,
any of which could result in damage to or  destruction  of crude oil and natural
gas wells,  destruction  of  producing  facilities,  damage to life or property,
suspension of  operations,  environmental  damage and possible  liability to the
Company. In accordance with customary industry practices,  the Company maintains
insurance  against  some,  but not all, of such risks and some,  but not all, of
such  losses.  The  occurrence  of such an event not fully  covered by insurance
could have a material  adverse effect on the financial  condition and results of
operations of the Company.

Restrictions Imposed by Terms of the Company's Indebtedness

        The Indentures  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. See "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 Indentures. Upon the occurrence of an event of default, holders of the
Secured  Notes and the Series D Notes could elect to  accelerate  the payment of
the notes.  There can be no  assurance  that the assets of the Company  would be
sufficient  to repay the Secured  Notes  and/or the Series D Notes in full.  See
"Management's  Discussion  and  Analysis of Financial  Condition  and Results of
Operations - Liquidity and Capital Resources."

Possible Delisting of Common Stock on The Nasdaq National Market

        Recently,  the Company  received  notification  from The Nasdaq National
Market ("NMS") that the Company did not meet the minimum net tangible assets and
"inside bid" price  requirements for NMS listed companies.  The Company has also
been  notified  that it does not meet the  minimum  market  value of the "public
float" for NMS listed  companies.  The Company has requested a hearing regarding
the proposed  delisting  of the  Company's  Common Stock on the Nasdaq  National
Market and  intends to request an  exception  from the  designated  criteria  to
permit  continued  inclusion  of the  Company's  common  stock  on the  NMS.  No
assurance  can be given that the  Company's  request  for an  exception  will be
granted.  The Company's common stock will continue to be traded on the NMS until
action by the Nasdaq Review Panel.

        If the Company's Common Stock is no longer traded on the NMS Market, the
Company  intends to apply for listing  its Common  Stock on The  American  Stock
Exchange or on a regional  exchange,  such as the Boston Stock Exchange.  If the
Company's  Common  Stock is not  approved  for  listing  on The  American  Stock
Exchange or a regional exchange,  trading in the Company's Common Stock would be
conducted in the over-the-counter  market in the "pink sheets" or the electronic
bulletin board administered by the National  Association of Securities  Dealers,
Inc. In such an event,  the liquidity  and market price of the Company's  Common
Stock may be  adversely  impacted.  As a result,  an  investor  may find it more
difficult to obtain accurate stock quotations.

Shares Eligible for Future Sale

        At March 22,  1999,  the Company had  6,330,426  shares of Common  Stock
outstanding of which 1,563,687 shares were held by affiliates.  In addition,  at
March 22, 1999,  the Company had  1,566,810  shares of Common  Stock  subject to
outstanding  options  granted under certain stock option plans (of which 501,422
shares were vested at March 22, 1999) and 225,500 shares  issuable upon exercise
of warrants.

        All of the shares of Common Stock held by affiliates  are  restricted or
control  securities under Rule 144 promulgated under the Securities Act of 1933,
as amended (the "Securities  Act"). The shares of the Common Stock issuable upon
exercise of the stock options have been registered under the Securities Act. The
shares of the Common Stock issuable upon exercise of the warrants are subject to
certain  registration rights and, therefore,  will be eligible for resale in the
public  market  after a  registration  statement  covering  such shares has been
declared  effective.  Sales of shares of Common Stock under Rule 144 or pursuant
to a registration statement could have a material adverse effect on the price of
the Common  Stock and could  impair the  Company's  ability to raise  additional
capital through the sale of its equity securities.

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
                                       10
<PAGE>
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  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
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  faces  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 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  competes  against  other  companies  in  its  natural  gas
processing  business both for supplies of natural gas and for customers to which
it sells 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.

Certain Business Risks

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

        In addition, a high degree of risk of loss of invested capital exists in
almost all exploration and development  activities which the Company undertakes.
No assurance  can be given that crude oil or natural gas will be  discovered  to
replace reserves currently being developed,  produced and sold, or that if crude
oil or natural gas reserves are found, they will be of a sufficient  quantity to
enable the Company to recover the  substantial  sums of money  incurred in their
acquisition,  discovery  and  development.  Drilling  activities  are subject to
numerous risks, including the risk that no commercially  productive crude oil or
natural gas reservoirs will be encountered. The cost of drilling, completing and
operating wells is often uncertain.  The Company's  operations may be curtailed,
delayed or canceled as a result of numerous  factors  including  title problems,
weather  condition,  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
governmental regulations.

Government Regulation

        The Company's  business is subject to certain  federal,  state 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
                                       11
<PAGE>
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.

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. The unavailability of Mr. Watson would have
a material 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.   The  Company  has  entered  into  employment
agreements  with Mr.  Watson  and each of the  Company's  vice  presidents.  The
employment agreements terminate on December 31, 1999 except that the term may be
extended for an  additional  year if by December 1 of the prior year neither the
Company  nor the  officer  has given  notice that it does not wish to extend the
term.  Except in the event of a change in control,  Mr. Watson's and each of the
vice president's employment is terminable at will by the Company for any reason,
without notice or cause.

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

        At December  31,  1998,  the  Company  had,  subject to the  limitations
discussed below,  $46.6 million of net operating loss carryforwards for U.S. tax
purposes,  of which it is  estimated a maximum of $43.8  million may be utilized
before it expires.  These loss  carryforwards will expire from 2002 through 2018
if not  utilized.  At December 31,  1998,  the Company had  approximately  $11.9
million of net operating loss  carryforwards  for Canadian tax purposes of which
$200,000  will expire in 2002,  $5.0 million  will expire in 2003,  $3.2 million
will expire in 2004 and $3.5 will expire in 2005. 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 of the Internal  Revenue
Code of 1986, as amended (Section 382), occurred in December 1991.  Accordingly,
it is  expected  that  the use of the  U.S.  net  operating  loss  carryforwards
generated  prior  to  December  31,  1991 of $4.9  million  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 $837,000
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 U.S. net operating  loss  carryforwards  generated  through  October 1993
(including those subject to the 1991 and 1992 ownership changes discussed above)
of $8.9 million will be limited to approximately  $1.0 million per year, subject
to the lower limitations described above. Of the $8.9 million 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 $6.1 million.  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 $5.9 million and $32.8 million for deferred tax assets at
December 31, 1997 and 1998, respectively.

Regulation of Crude Oil and Natural Gas Activities

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. In 1993, the Congress deregulated natural gas prices for all "first
                                       12
<PAGE>
sales" of natural gas. As a result,  all sales of the  Company's  United  States
produced  crude  oil,  natural  gas,  condensate  and NGLs may be sold at market
prices, unless otherwise committed by contract.

        Crude oil and 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.  Crude oil and 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 provincial governments of Alberta, British Columbia and Saskatchewan
also  regulates  the  volume  of  natural  gas that may be  removed  from  these
provinces  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.

    United States Natural Gas Regulation.

        Historically, interstate pipeline companies generally acted as wholesale
merchants by  purchasing  natural gas from  producers  and  reselling the gas to
local distribution  companies and large end users.  Commencing in late 1985, the
Federal Energy Regulatory Commission (the "FERC") issued a series of orders that
have had a major impact on interstate natural gas pipeline operations,  services
and  rates,  and thus have  significantly  altered  the  marketing  and price of
natural gas.  The FERC's key rule making  action,  order No. 636 ("Order  636"),
issued in April 1992,  required each interstate pipeline to, among other things,
"unbundle" its traditional  bundled sales services and create and make available
on an open and  nondiscriminatory  basis numerous  constituent services (such as
gathering  services,  storage services,  firm and  interruptible  transportation
services,  and standby  sales and gas  balancing  services),  and to adopt a new
ratemaking methodology to determine appropriate rates for those services. To the
extent the pipeline  company or its sales affiliate makes natural gas sales as a
merchant,  it does so pursuant to private  contracts in direct  competition with
all of the sellers, such as the Company;  however,  pipeline companies and their
affiliates  were not required to remain  "merchants" of natural gas, and most of
the interstate pipeline companies have become "transporters only." In subsequent
orders, the FERC largely affirmed the major features of Order 636. 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.  The federal  appellate  courts have largely  affirmed the features of
Order 636 and numerous  related orders  pertaining to the individual  pipelines.
The  Company  does not  believe  that  Order 636 and the  related  restructuring
proceedings  affect it any  differently  than other  natural gas  producers  and
marketers with which it competes.

        In recent  years the FERC also has  pursued a number of other  important
policy initiatives which could significantly affect the marketing of natural gas
in the United States.  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) various  FERC's orders  adopting  rules proposed by the Gas Industry
Standards Board which were designed to further standardize  pipeline tariffs and
business  practices,  (iv) a notice of  proposed  rulemaking  that,  among other
things, proposes (aa) to eliminate the cost-based price cap currently imposed on
natural gas  transactions  of less than one year in duration,  (bb) to establish
mandatory  "transparent"  capacity  auctions of  short-term  capacity on a daily
basis, and (cc) to permit interstate pipelines to negotiate terms and conditions
of service with  individual  customers,  (v) a notice of inquiry which continues
                                       13
<PAGE>
the FERC's  review of its  regulatory  policies  with  respect to the pricing of
long-term pipeline transportation services by presenting a range of questions to
the  industry  dealing  with  current  cost based  pricing  of new and  existing
capacity and alternative rate mechanism  options,  including the desirability of
pricing interstate  pipeline capacity utilizing  market-based  rates,  incentive
rates, or indexed rates, and (vi) a notice of proposed  rulemaking that proposes
generic  procedures  to  expedite  the FERC's  handling  of  complaints  against
interstate  pipelines  with the goals of encouraging  and supporting  consensual
resolution of complaints  and  organizing  the complaint  procedures so that all
complaints are handled in a timely and fair manner. 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.  As  to  all  of  these  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.

        Since Order 636 FERC decisions  involving  onshore  facilities 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 ships certain of its natural gas through
gathering  facilities owned by others,  including  interstate  pipelines,  under
existing long term contractual arrangements.  Although these FERC decisions have
created the potential for  increasing  the cost of shipping the Company's gas on
third party gathering  facilities,  the Company's  shipping  activities have not
been materially affected by these decisions.

        Commencing  in October  1993,  the FERC issued a series of rules  (Order
Nos. 561 and 561-A)  establishing  an indexing  system under which oil pipelines
will be able to change their transportation rates, subject to prescribed ceiling
levels. The indexing system,  which allows or may require pipelines to make rate
changes to track changes in the Producer Price Index for Finished  Goods,  minus
one percent,  became effective January 1, 1995. In certain circumstances,  these
rules permit oil pipelines to establish rates using  traditional cost of service
or other  methods of rate making.  The Company does not believe that there rules
affect it any  differently  that other crude oil producers  and  marketers  with
which it competes.

        Additional  proposals and proceedings  that might affect the natural gas
industry in the United States are considered from time to time by Congress,  the
FERC, state regulatory bodies and the courts. The Company cannot predict when or
if any such  proposals  might  become  effective  or their effect if any, on the
Company's  operations.  The oil and gas industry  historically  has been heavily
regulated;  thus  there  is no  assurance  that the  less  stringent  regulatory
approach  recently  pursued by the FERC and Congress will continue  indefinitely
into the future.

    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  and  provincial  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,  on August 19,  1997,  the Texas
Railroad  Commission enacted a Natural Gas Transportation  Standards and Code of
Conduct to provide  regulatory  support  for the State's  more active  review of
rates,  services and practices  associated with the gathering and transportation
of gas by an entity that provides such services to others for a fee, in order to
prohibit such entities from unduly discriminating in favor of their affiliates.
                                       14
<PAGE>
        In the event the Company  conducts  operations  on federal or Indian oil
and  gas  leases,   such  operations   must  comply  with  numerous   regulatory
restrictions, including various non-discrimination statutes, and certain of such
operations must be conducted  pursuant to certain on-site  security  regulations
and other permits issued by various federal agencies. In addition,  the Minerals
Management Service ("MMS") has recently issued a final rule to clarify the types
of costs  that are  deductible  transportation  costs for  purposes  of  royalty
valuation of production  sold off the lease.  In particular,  MMS will not allow
deduction of costs  associated  with marketer fees,  cash out and other pipeline
imbalance  penalties,  or  long-term  storage  fees.  Further,  the MMS has been
engaged in a three-year  process of  promulgating  new rules and  procedures for
determining  the  value of oil  produced  from  federal  lands for  purposes  of
calculating  royalties  owed to the  government.  The oil and gas  industry as a
whole has resisted the proposed rules under an assumption  that royalty  burdens
will substantially increase. The Company cannot predict what, if any, effect any
new rule will have on its operations.

Canadian Royalty Matters

        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 horizontal  extensions commenced at least five
years after the well was originally spudded may qualify for a royalty reduction.
A 24-month,  8,000 cubic meters exemption is available to production from a well
that has not  produced  for a 12-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
CDN $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  meter  and 35% for  prices  above CDN $210 per cubic
meter.  The ARTC rate is  currently  applied to a maximum of CDN $2.0 million of
Alberta  Crown  royalties  payable  for each  producer  or  associated  group of
producers. Crown royalties on production from producing properties acquired from
corporations claiming maximum entitlement to ARTC will generally not be eligible
for ARTC. The rate is  established  quarterly  based on average "par price",  as
determined  by the  Alberta  Department  of Energy  for the  previous  quarterly
period.  On December 22,  1997,  the  Government  of Alberta gave notice that it
intended to review the ARTC program with  expected  changes to take effect prior
to 2001.

        The  Government  of  Saskatchewan's  fiscal  regime  for the oil and gas
industry  provides an incentive  to  encourage  the drilling on new vertical oil
wells through a revised royalty/tax structure for mew vertical oil wells and 15
                                       15
<PAGE>
incremental  production from new of expanded water flood projects..  This "third
tier"  Crown  royalty  rate is price  sensitive  and  varies  between  heavy and
non-heavy oil (from a minimum off 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  meters  of oil in the case of deep  exploratory
wells).  The maximum royalty  applicable to the first 12,000 cubic meters of oil
has been increased from 5% to 10% for production from certain  horizontal wells.
In addition,  royalty/tax  holidays for deep horizontal wells have been replaced
with a 25,000 cubic meters volume incentive (5% maximum  royalty).  Oil produced
from qualified  reactivated  oil wells are subject to a maximum new royalty rate
of 5% for the first 5 years  following  the  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
meters of natural gas produced will be subject to an incentive  maximum  royalty
rate of 5%. On  February  9, 1998,  the  Government  of  Saskatchewan  announced
further royalty incentive programs to encourage oil and gas exploration.

        Producers of oil and natural gas in British  Columbia are also  required
to pay  annual  rental  payments  in respect to Crown  lease and  royalties  and
freehold  production  taxes in  respect of oil and gas  produced  from Crown and
freehold lands  respectively.  The amount payable as a royalty in respect of oil
depends  on the  vintage  of  the  oil  (whether  it  was  produced  from a pool
discovered  before or after October 31, 1975), the quantity of oil produced in a
month and the value of the oil. Oil produced from newly  discovered pools may be
exempt from the payment of a royalty for the first 36 months of production.  The
royalty  payable on natural  gas is  determined  by a sliding  scale  based on a
reference  price which is the greater of the amount obtained by the producer and
at prescribed  minimum price. Gas produced in association with oil has a minimum
royalty  of 8% while the  royalty  in  respect of other gas may not be less that
15%.

        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.

Environmental Matters

        The  Company's  operations  are  subject  to  numerous  federal,  state,
provincial  and local laws and  regulations  controlling  the  generation,  use,
storage,  and discharge of materials into the environment or otherwise  relating
to the protection of the environment. These laws and regulations may require the
acquisition of a permit or other  authorization  before construction or drilling
commences;  restrict  the  types,  quantities,  and  concentrations  of  various
substances  that  can be  released  into  the  environment  in  connection  with
drilling, production, and gas processing activities;  suspend, limit or prohibit
construction,  drilling  and other  activities  in certain  lands  lying  within
wilderness,  wetlands,  and other protected areas;  require remedial measures to
mitigate  pollution from historical and on-going  operations such as use of pits
and plugging of abandoned wells;  restrict  injection of liquids into subsurface
aquifers that may contaminate  groundwater;  and impose substantial  liabilities
for pollution  resulting from the Company's  operations.  Environmental  permits
required  for  the   Company's   operations   may  be  subject  to   revocation,
modification, and renewal by issuing authorities.  Governmental authorities have
the  power to  enforce  compliance  with  their  regulations  and  permits,  and
violations are subject to injunction,  civil fines, and even criminal penalties.
Management of the Company  believes that it is in  substantial  compliance  with
current  environmental  laws and  regulations,  and that the Company will not be
required to make material  capital  expenditures  to comply with existing  laws.
Nevertheless,   changes  in  existing  environmental  laws  and  regulations  or
interpretations  thereof could have a significant  impact on the Company as well
as the oil and gas  industry  in  general,  and thus the  Company  is  unable to
predict the ultimate cost and effect of future changes in environmental laws and
regulations.

        In  the  United  States,   the   Comprehensive   Environment   Response,
Compensation,  and Liability Act  ("CERCLA"),  also known as the "Superfund" and
comparable state statutes impose strict, joint, and several liability on certain
classes of persons who are  considered to have  contributed  to the release of a
"hazardous  substance" into the environment.  These persons include the owner or
operator of a disposal site or sites where a release occurred and companies that
dispose or arranged for the disposal of the hazardous substances released at the
site.  Under  CERCLA such  persons or  companies  may be liable for the costs of
cleaning  up  the  hazardous   substances  that  have  been  released  into  the
environment  and for damages to natural  resources,  and it is not  uncommon for
neighboring  land  owners and other third  parties to file  claims for  personal
injury,  property damage, and recovery of response costs allegedly caused by the
hazardous  substances released into the environment.  The Resource  Conservation
and Recovery Act ("RCRA") and  comparable  state statues  govern the disposal of
"solid  waste" and  "hazardous  waste" and authorize  imposition of  substantial
civil and  criminal  penalties  for  noncompliance.  Although  CERCLA  currently
excludes  petroleum  from the  definition of "hazardous  substance,"  state laws
affecting  the  Company's   operations  impose  cleanup  liability  relating  to
petroleum and petroleum related products.  In addition,  although RCRA currently
classifies  certain  oilfield wastes as  "non-hazardous,"  such  exploration and
                                       16
<PAGE>
production  wastes could be reclassified as hazardous wastes thereby making such
wastes subject to more stringent handling and disposal requirements.

        The  Company  currently  owns or  leases,  and has in the past  owned or
leased,  numerous  properties  that  for  many  years  have  been  used  for the
exploration  and  production  of oil and gas.  Although the Company has utilized
operating and disposal practices that were standard in the industry at the time,
hydrocarbons  or other wastes may have been  disposed of or released on or under
the  properties  owned or leased by the Company or on or under  other  locations
where such  wastes  have been taken for  disposal.  In  addition,  many of these
properties  have been operated by third parties whose  treatment and disposal or
release of  hydrocarbons  or other wastes was not under the  Company's  control.
These properties and the wastes disposed thereon may be subject to CERCLA, RCRA,
and  analogous  state  laws.  The  Company's  operations  are also  impacted  by
regulations  governing the disposal of naturally occurring radioactive materials
("NORM").  The Company must comply with the Clean Air Act and  comparable  state
statutes which prohibit the emissions of air  contaminants,  although a majority
of the Company's  activities are exempted under a standard exemption.  Moreover,
owners,  lessees and  operators  of oil and gas  properties  are also subject to
increasing  civil  liability  brought by surface  owners and adjoining  property
owners.  Such claims are  predicated on the damage to or  contamination  of land
resources  occasioned  by drilling and  production  operations  and the products
derived  therefrom,  and are  usually  causes  of  action  based on  negligence,
trespass, nuisance, strict liability and fraud.

        United  States  federal  regulations  also  require  certain  owners and
operators of facilities that store or otherwise handle oil, such as the Company,
to prepare and implement spill prevention,  control and countermeasure plans and
spill response plans relating to possible  discharge of oil into surface waters.
The federal Oil Pollution Act ("OPA") contains numerous requirements relating to
prevention of and response to oil spills into waters of the United  States.  For
facilities that may affect state waters, OPA requires an operator to demonstrate
$10 million in financial  responsibility.  State laws mandate  crude oil cleanup
programs with respect to contaminated soil.

        The  Company's  Canadian  operations  are also subject to  environmental
regulation pursuant to local, provincial and federal legislation which generally
require  operations  to be conducted in a safe and  environmentally  responsible
manner.  Canadian  environmental   legislation  provides  for  restrictions  and
prohibitions  relating to the  discharge of air, soil and water  pollutants  and
other substances  produced in association with certain crude oil and natural gas
industry  operations,  and  environmental  protection  requirements,   including
certain  conditions  of  approval  and  laws  relating  to  storage,   handling,
transportation and disposal of materials or substances which may have an adverse
effect on the environment.  Environmental legislation 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 the provincial  authorities.  A
breach of such  legislation may result in the imposition of fines of issuance of
clean-up orders.

        Certain federal  environmental  laws that may affect the Company include
the Canadian  Environmental  Assessment Act which ensures that the environmental
effects of projects receive careful  consideration  prior to licenses or permits
being issued, to insure that projects that are to be carried out in Canada or on
federal lands do not cause significant adverse environmental effects outside the
jurisdictions  in which they are  carried  out,  and to ensure  that there is an
opportunity for public  participation in the environmental  assessment  process;
the  Canadian   Environmental   Protection   Act  ("CEPA")  which  is  the  most
comprehensive  federal environmental statute in Canada, and which controls toxic
substances  (broadly  defined),  includes standards relating to the discharge of
air,  soil and water  pollutants,  provides  for broad  enforcement  powers  and
remedies and imposes significant  penalties for violations;  the National Energy
Board  Act which can  impose  certain  environmental  protection  conditions  on
approvals issued under the Act; the Fisheries Act which prohibits the depositing
of a  deleterious  substance of any type in water  frequented  by fish or in any
place under any condition  where such  deleterious  substance may enter any such
water and provides for significant  penalties;  the Navigable Waters  protection
Act which  requires  any work which is built in, on,  over,  under,  thorough or
across any navigable water to be approved by the Minister of Transportation, and
which  attracts  severe  penalties  and remedies for  non-compliance,  including
removal of the work.

        In Alberta,  environmental  compliance  has been governed by the Alberta
Environmental  Protection and Enhancement Act ("AEPEA") since September 1, 1993.
In addition to consolidation a variety of environmental statutes, the AEPEA also
imposes  certain  new  environmental  responsibilities  on oil and  natural  gas
operators in Alberta. The AEPEA sets out environmental  standards and compliance
for  releases,  clean-up  and  reporting.  The Act provides for a broad range of
liabilities, enforcement actions and penalties.
                                       17
<PAGE>
        British  Columbia's  Environmental  Assessment Act become effective June
30, 1995. This legislation rolls the previous  processes for the review of major
energy   projects  into  a  single   environmental   assessment   process  which
contemplates public participation in the environmental review.

        Saskatchewan's  Environmental  Management  and  Protection  Act  is  the
primary  environmental   legislation  for  that  province.   This  Act  provides
significant  enforcement  and penalty  provisions,  and includes a  compensation
scheme  respecting  losses or damage from  spills.  The Clean Air Act provides a
permitting  scheme  for  certain   industrial   activities,   broad  enforcement
provisions  and  significant  penalties for  non-compliance.  The  Environmental
Assessment Act provides that certain development activities which can affect the
environment  must  undergo  environmental   assessment  and  approval  from  the
provincial government.

        The Company is not currently involved in any administrative, judicial or
legal  proceedings  arising under domestic or foreign  federal,  state, or local
environmental protection laws and regulations,  or under federal or state common
laws,  which would have a material  adverse  effect on the  Company's  financial
position or results of operations.  Moreover,  the Company  maintains  insurance
against costs of clean-up  operations,  but it is not fully insured  against all
such risks.  A serious  incident of pollution  may, as it has in the past,  also
result in the suspension or cessation of operations in the affected area.

        The  Company  has  a  Corporate  Environmental  Policy  and  a  detailed
Environmental  Management  System in place to ensure  continued  compliance with
environmental, health and safety laws and regulations. The Company believes that
is has obtained and is in compliance  with all material  environmental  permits,
authorizations and approvals.

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 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 March 22,  1999,  Abraxas and its  subsidiaries  had 86  full-time
employees,  including six executive officers,  six non-executive  officers,  six
petroleum  engineers,  one landmen,  one  geophysicist,  four geologists,  seven
managers,  28  secretarial,  accounting  and  clerical  personnel  and 27  field
personnel.   Additionally,   Abraxas   also  retains   contract   pumpers  on  a
month-to-month  basis.  Abraxas retains  independent  geologic,  geophysical and
engineering  consultants  from time to time on a limited  basis and  expects  to
continue to do so in the future.
                                       18
<PAGE>
Item 2.  Properties.
Primary Operating Areas

Texas

        The Company's U.S.  operations are  concentrated in South and West Texas
with over 99% of the PV-10 of the  Company's  U.S.  crude  oil and  natural  gas
properties  located in those two regions.  The Company operates 84% of its wells
in Texas.  Operations in South Texas are concentrated along the Edwards trend in
Live Oak and Dewitt  Counties  and in the  Frio/Vicksburg  trend in San Patricio
County.  The  Company  owns an average  71%  working  interest in 115 wells with
average  daily  production  of 863 net Bbls of crude oil and NGLs and 10,285 net
Mcf of natural gas per day for the year ended  December 31, 1998.  The Company's
West  Texas  operations  are  concentrated  along the deep  Devonian/Ellenberger
formations  and shallow Cherry Canyon  sandstones in Ward County,  the Spraberry
trend in  Midland  County  and in the  Sharon  Ridge  Clearfork  Field in Scurry
County.  The  Company  owns an average  72%  working  interest in 264 wells with
average  daily  production of 1,264 net Bbls of crude oil and NGLs and 6,926 net
Mcf of natural gas per day for the year ended December 31, 1998.  During 1998, a
total of 11 new wells (9.6 net) were drilled by the Company in Texas with a 100%
success rate.

Western Canada

        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 Oil & Gas, Ltd.
("Cascade"), an Alberta-based corporation whose common shares were traded on The
Alberta Stock Exchange.  In November 1997, Grey Wolf merged with Cascade,  which
later  changed  its name to Grey Wolf  Exploration  Inc.  Abraxas  and  Canadian
Abraxas own approximately 48% of the outstanding capital stock of Grey Wolf. The
shares of Grey Wolf are traded on the  Alberta  Stock  Exchange  and the Toronto
Stock  Exchange  under the symbol  "GWX." Grey Wolf  manages the  operations  of
Canadian Abraxas pursuant to a management agreement between Canadian Abraxas and
Grey Wolf. Under the management agreement, Canadian Abraxas reimburses Grey Wolf
for  reasonable  costs or  expenses  attributable  to  Canadian  Abraxas and for
administrative  expenses based upon the percentage that Canadian  Abraxas' gross
revenue bears to the total gross revenue of Canadian Abraxas and Grey Wolf.

        The Company owns  producing  properties  in Western  Canada,  consisting
primarily of natural gas  reserves,  and  interests  ranging from 10% to 100% in
approximately  200 miles of natural  gas  gathering  systems  and 19 natural gas
processing  plants. As of December 31, 1998,  Canadian Abraxas and Grey Wolf had
estimated net proved  reserves of 98,905 Mmcfe (88% natural gas) with a PV-10 of
$87.3 million,  95% if which was attributable to proved developed reserves.  For
the year ended December 31, 1998, the Canadian properties produced an average of
approximately  999 net Bbls of crude oil and NGL's per day and 48,435 net Mcf of
natural gas per day from 100.8 net wells. The natural gas processing  plants had
aggregate  capacity of approximately  263 MMcf of natural gas per day (108.5 net
MMcf).

        In January 1999, Canadian Abraxas acquired all of the outstanding common
shares of New Cache for an aggregate of $78.0 million in cash and the assumption
of the New Cache Debt which was  repaid in March 1999 from the  proceeds  of the
sale of the Secured  Notes.  As of December  31, 1998,  New Cache had  estimated
total  proved  reserves  of 77 Bcfe  (75%  natural  gas)  with a PV-10  of $55.6
million,  all of which was  attributable to proved developed  reserves.  For the
year ended  December 31, 1998,  New Cache  produced an average of  approximately
1,389 net Bbls of crude oil and NGL's per day and 25.3 net MMcf of  natural  gas
per day.  New Cache  owns  interests  in 285 gross  wells  (88.5 net  wells) and
445,294  gross  (256,524  net)  acres as well as three  natural  gas  processing
plants.
                                       19
<PAGE>
Exploratory and Developmental Acreage

        Abraxas'  principal  crude oil and  natural  gas  properties  consist of
non-producing and producing crude oil and natural gas leases, including reserves
of crude oil and natural gas in place.  The following table  indicates  Abraxas'
interest in developed and undeveloped acreage as of December 31, 1998:

                        Developed and Undeveloped Acreage
                             As of December 31, 1998

                    Developed Acreage (1)       Undeveloped Acreage (2)
                 ---------------------------- -----------------------------
                 Gross Acres (3) Net Acres (4)Gross Acres (3)  Net Acres
                                                                  (4)
                 -------------  ------------  -------------  --------------
 Canada              213,763        120,470       439,782        290,427
 Texas                43,659         27,090        17,704         14,646
 N. Dakota             1,544            985            --             --
 Oklahoma              3,041          1,405            --             --
 Colorado                160             36            --             --
 Mississippi              40              2            --             --
 New Mexico              160             30            --             --
 Kansas                1,280            277            --             --
 Wyoming               9,139          6,965        36,182         32,314
 Alabama                  40             --            --             --
                 -------------  ------------  -------------  --------------
         Total       272,826        157,260       493,668        337,387
- ---------------
(1)  Developed  acreage  consists of acres spaced or  assignable  to  productive
     wells.
(2)  Undeveloped  acreage is  considered to be those leased acres on which wells
     have not been  drilled  or  completed  to a point  that  would  permit  the
     production of commercial  quantities of oil and gas,  regardless of whether
     or not such acreage contains proved reserves.
(3)  Gross acres  refers to the number of acres in which  Abraxas owns a working
     interest.
(4)  Net  acres  represents  the  number  of acres  attributable  to an  owner's
     proportionate  working interest and/or royalty interest in a lease (e.g., a
     50% working interest in a lease covering 320 acres is equivalent to 160 net
     acres).

Productive Wells

        The following table sets forth the total gross and net productive  wells
of Abraxas,  expressed  separately for crude oil and natural gas, as of December
31, 1998:

                              Productive Wells (1)
                             As of December 31, 1998

    State/Country              Crude Oil                   Natural Gas
                       --------------------------  ----------------------------
                        Gross(2)       Net(3)       Gross(2)        Net(3)
    -----------------  ------------  ------------  ------------   -------------
    Canada                  50.0          10.6          201.0          90.2
    Texas                  276.0         201.1          103.0          78.5
    N. Dakota                2.0           1.4             -             -
    Oklahoma                 5.0           1.8            5.0           2.0
    Colorado                 1.0           0.2             -              -
    Mississippi              1.0           0.1             -              -
    New Mexico               1.0           0.2             -              -
    Wyoming                    -             -           13.0           2.0
    Alabama                  1.0            -              -             -
    Kansas                   3.0           0.7            1.0           0.2
                       ============  ============  ============   =============
            Total          340.0         216.1          323.0         172.9
                       ============  ============  ============   =============
- ------------
(1)  Productive wells are producing wells and wells capable of production.
(2)  A gross well is a well in which  Abraxas  owns an  interest.  The number of
     gross wells is the total number of wells in which Abraxas owns an interest.
(3)  A net well is deemed to exist when the sum of fractional  ownership working
     interests  in gross wells equals one. The number of net wells is the sum of
     Abraxas' fractional working interest owned in gross wells.
(4)  Included  in the above wells are 23 gross and 21 net crude oil and 11 gross
     and 3 net natural gas wells with multiple completions.

                                       20
<PAGE>
         Substantially  all of  Abraxas'  existing  crude  oil and  natural  gas
properties are pledged to secure Abraxas'  indebtedness under the Secured Notes.
See   "Management's   Discussion   of   Financial   Condition   and  Results  of
Operations--Liquidity and Capital Resources".

Reserves Information

        The crude oil and natural gas reserves of Abraxas have been estimated as
of January 1, 1999,  January 1, 1998 and January 1, 1997 and of Canadian Abraxas
as of January 1, 1997, by DeGolyer & MacNaughton, of Dallas, Texas. The reserves
of Canadian Abraxas and Grey Wolf as of January 1, 1999 and January 1, 1998 have
been estimated by McDaniel & Associates  Consultants  Ltd. of Calgary,  Alberta.
Crude oil and natural gas  reserves,  and the  estimates of the present value of
future net revenues therefrom,  were determined based on then current prices and
costs.  Reserve  calculations  involve the  estimate  of future net  recoverable
reserves  of crude oil and  natural  gas and the timing and amount of future net
revenues 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,  natural gas liquids and natural gas reserves as of
January 1, 1999, January 1, 1998 and January 1, 1997:

                                                Estimated Proved Reserves
                                      ----------------------------------------
                                        Proved       Proved         Total
                                       Developed   Undeveloped     Proved
                                      -----------  ------------ --------------
      As of January 1, 1997(1)
        Crude oil (MBbls)                 7,871         1,930         9,801
        NGLs (MBbls)                      7,090         1,144        8,234
        Natural gas (MMcf)              157,660        19,600      177,260

      As of January 1, 1998(1)(2)(3)
        Crude oil (MBbls)                 7,075         1,873         8,948
        NGLs (MBbls)                      7,178         1,651         8,829
        Natural gas (MMcf)              186,490        34,824       221,314

      As of January 1, 1999(1)(2)(3)
        Crude oil (MBbls)                 3,985         1,628         5,613
        NGLs (MBbls)                      1,834           248         2,082
        Natural gas (MMcf)              144,588        52,890       197,478

- ------------------
(1)     Includes 120,000, 128,900 and 31,900 barrels of crude oil reserves owned
        by Grey Wolf of which 57,600,  69,500 and 16,400  barrels are applicable
        to the minority interests share of these reserves as of January 1, 1997,
        1998 and 1999, respectively.
(2)     Includes  131,300  and 443,500  barrels of natural gas liquids  reserves
        owned by Grey Wolf of which 70,889 and 227,600 barrels are applicable to
        the minority interests share of these reserves as of January 1, 1998 and
        1999, respectively.
(3)     Includes  7,446 and 28,610  Mmcf of natural gas  reserves  owned by Grey
        Wolf of which  4,020 and  14,700  Mmcf are  applicable  to the  minority
        interests  share of these  reserves  as of  January  1,  1998 and  1999,
        respectively.

        There are numerous  uncertainties  inherent in estimating  crude oil and
natural gas reserves and their estimated  values,  including many factors beyond
the control of the producer.  The reserve data set forth herein  represent  only
estimates. Reserve engineering is a subjective process of estimating underground
accumulations  of crude oil and  natural gas that cannot be measured in an exact
                                       21
<PAGE>
manner.  The  accuracy of any  reserve  estimate is a function of the quality of
available data and of engineering and geological interpretation and judgment. As
a result, estimates of different engineers often vary. In addition, estimates of
reserves  are  subject to  revision  by the  results of  drilling,  testing  and
production  subsequent  to the  date of  such  estimates.  Accordingly,  reserve
estimates are often  different  from the quantities of crude oil and natural gas
that are ultimately  recovered.  The  meaningfulness of such estimates is highly
dependent upon the accuracy of the assumptions upon which they are based.

        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, Natural Gas Liquids, and Natural Gas Production and Sales Prices

        The following  table presents the net crude oil, net natural gas liquids
and net natural gas production  for Abraxas,  the average sales price per Bbl of
crude oil and natural gas  liquids and per Mcf of natural gas  produced  and the
average cost of production per BOE of production sold, for the three years ended
December 31, 1998:

                                       1998           1997            1996
                                  --------------- -------------- ---------------
     Crude oil production (Bbls)         728,560        936,716         425,188
     Natural gas production(Mcf)      24,929,866     21,050,045       6,350,069
     Natural gas liquids
         production (Bbls)               867,443        992,266         299,509
     Mmcfe                                34,506         32,624          10,698
     Average sales price per
         Bbl of crude oil ($)             $13.65         $18.63          $20.85
     Average sales price per
         MCF of natural gas ($)           $ 1.54         $ 1.79          $ 1.97
     Average sales price per
         Bbl of natural gas               
         liquids ($)                      $ 6.81         $10.75          $14.55
     Average sales price per Mcfe($)      $ 1.57         $ 2.02          $ 2.40
     Average cost of production($)
         per BOE produced (1)             $ 2.93         $ 2.74          $ 3.28
        

(1)     Oil and gas were combined by converting  gas to a barrel oil  equivalent
        ("BOE")  on the  basis  of 6 Mcf  gas =1 Bbl of  oil.  Production  costs
        include direct  operating  costs, ad valorem taxes and gross  production
        taxes.
                                       22
<PAGE>
Drilling Activities

        The following table sets forth Abraxas' gross and net working  interests
in  exploratory,  development,  and service wells drilled during the three years
ended December 31, 1998:

                            1998                  1997                1996
                     ---------------------  ------------------  ----------------
                     Gross(1)     Net(2)     Gross       Net      Gross     Net
                     ---------   ---------  --------   -------  --------  ------
Exploratory(3)

  Productive(4)

     Crude oil            1.0         1.0          -        -       2.0     1.2

     Natural gas          7.0         5.6       10.0      7.9       2.0     1.2

     Dry holes(5)         9.0         7.3        2.0      1.8       4.0     1.4
                     ---------   ---------  ---------  -------  --------  ------
  Total                  17.0        13.9       12.0      9.7       8.0     3.8
                     =========   =========  =========  =======  ========  ======
Development(6)

  Productive

     Crude oil            3.0         2.4       25.0     22.3      20.0    15.8

     Natural gas         30.0        23.9       20.0     14.9      10.0     3.7

     Service(7)           1.0         1.0          -        -       1.0     1.0

     Dry holes            3.0         2.2        3.0      2.0         -       -
                     ---------   ---------  ---------  -------  --------  ------
  Total                  37.0        29.5       48.0     39.2      31.0    20.5
                     =========   =========  =========  =======  ========  ======

(1)      A gross well is a well in which Abraxas owns an interest.
(2)      The  number of net wells  represents  the total  percentage  of working
         interests  held in all wells (e.g.,  total  working  interest of 50% is
         equivalent  to 0.5  net  well.  A  total  working  interest  of 100% is
         equivalent to 1.0 net well).
(3)      An exploratory  well is 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.
(4)      A productive well is an exploratory or a development well that is not a
         dry hole.
(5)      A dry hole is an exploratory or development  well found to be incapable
         of producing  either crude oil or natural gas in sufficient  quantities
         to justify completion as a crude oil or natural gas well.
(6)      A development  well is 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)  noted to be  productive  for the purpose of
         extracting proved crude oil or natural gas reserves.
(7)      A  service  well is used for  water  injection  in  secondary  recovery
         projects or for the disposal of produced water.

        As of March 22, 1999, the Company had one well in process of drilling.
                                       23
<PAGE>
Office Facilities

        The Company's executive and administrative offices are located at 500 N.
Loop 1604 East,  Suite 100,  San Antonio,  Texas  78232.  The Company owns a 16%
limited partnership  interest in the Partnership which owns the office building.
The Company also has an office in Midland,  Texas. These offices,  consisting of
approximately  12,650  square  feet in San  Antonio  and  1,090  square  feet in
Midland,  are leased until March 2006 from unaffiliated  parties at an aggregate
rate of approximately  $18,000 per month.  Grey Wolf leases 8,683 square feet of
office space in Calgary,  Alberta pursuant to a lease with an unaffiliated third
party which expires on December 31, 2001 at a rate of approximately  CDN $15,000
per month.  New Cache  leases  7,427  square  feet of office  space in  Calgary,
Alberta  pursuant  to a  lease  which  expires  on  July  1,  2001  at a rate of
approximately CDN $12,400 per month.

Other Properties

        The Company owns 10 acres of land, an office building,  shop,  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 21 vehicles which are used in the field by employees.

Item 3. Legal Proceedings

        General.  From time to time,  the  Company  is  involved  in  litigation
relating  to  claims  arising  out of its  operations  in the  normal  course of
business.  As of March  22,  1999,  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.

        Hornburg  Litigation.  In May 1995,  certain  plaintiffs filed a lawsuit
against  the  Company  alleging   negligence  and  gross  negligence,   tortious
interference  with contract,  conversion and waste.  In March 1998, a jury found
against the  Company  and on May 22,  1998 final  judgment in the amount of $1.3
million was entered.  The Company has filed an appeal.  Management believes that
the  plaintiffs'  claims  are  without  merit  and that  damages  should  not be
recoverable  under this action;  however,  the ultimate  effect on the Company's
financial  position and results of operations cannot be determined at this time.
The Company had not established a reserve for this matter at December 31, 1998.

Item 4. Submission of Matters to a Vote of Security Holders

        No matter was  submitted  to a vote of  security  holders of the Company
during the fourth quarter of the fiscal year ended December 31, 1998.

Item 4a. Executive Officers of the Company

        Certain information is set forth below concerning the executive officers
of the  Company,  each of whom has been  selected to serve until the 1999 annual
meeting of directors and until his successor is duly elected and qualified.

        Robert L. G.  Watson,  age 48,  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 and a director of
Grey Wolf.  In November  1996,  Mr.  Watson was  elected  Chairman of the Board,
President and as a director of Canadian Abraxas. In January 1999, Mr. Watson was
elected  Chairman  of the Board and  director  of New  Cache.  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,  age 48, 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  and  Assistant  Secretary of Canadian  Abraxas.  In
January 1999, Mr. Williford was elected Assistant  Secretary of New Cache. 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.
                                       24
<PAGE>
        Robert W. Carington,  Jr., age 37, was elected  Executive Vice President
and a director of the Company in July 1998.  Prior to joining the  Company,  Mr.
Carington  was a Managing  Director  with  Jefferies  & Company,  Inc.  Prior to
joining  Jefferies & Company,  Inc. in January  1993,  Mr.  Carington was a Vice
President at Howard, Weil, Labouisse,  Friedrichs, Inc. Prior to joining Howard,
Weil, Labouisse,  Freidrichs,  Inc., Mr. Carington was a petroleum engineer with
Unocal  Corporation  from  1983 to 1990.  Mr.  Carington  received  a degree  of
Bachelor of Science in Mechanical Engineering from Rice University in 1983 and a
Masters of Business Administration from the University of Houston in 1990.



                                     PART II


Item 5. Market for Registrant's Common Equity and Related Stockholder Matters.

Market Information

        Abraxas  Common Stock is traded on the NASDAQ Stock Market and commenced
trading on May 7, 1991. The following table sets forth certain information as to
the high and low bid  quotations  quoted  on  NASDAQ  for  1996,  1997 and 1998.
Information with respect to  over-the-counter  bid quotations  represents prices
between dealers,  does not include retail  mark-ups,  mark-downs or commissions,
and may not necessarily represent actual transactions.


               Period                                   High           Low 

        1996
               First Quarter.............................$7.75        $4.13
               Second Quarter.............................7.25         5.00
               Third Quarter..............................7.13         4.75
               Fourth Quarter............................10.50         5.75
        1997
               First Quarter............................$14.00        $8.88
               Second Quarter............................14.13        10.00
               Third Quarter.............................15.75        12.50
               Fourth Quarter............................19.50        13.88
        1998
               First Quarter............................$15.00        $7.00
               Second Quarter............................11.25         8.25
               Third Quarter............................. 9.50         5.31
               Fourth Quarter............................ 7.56         4.00

        Recently,  the  Company  received  notification  from  The NMS  that the
Company  did not meet the  minimum net  tangible  assets and "inside  bid" price
requirements for NMS listed  companies.  The Company has also been notified that
it does not meet the minimum  market value of the "public  float" for NMS listed
companies.  The Company has requested a hearing regarding the proposed delisting
of the  Company's  Common  Stock on the NMS and intends to request an  exception
from the  designated  criteria to permit  continued  inclusion of the  Company's
common stock on the NMS. No assurance  can be given that the  Company's  request
for an exception will be granted. The Company's common stock will continue to be
traded on the Nasdaq NMS until action by the Nasdaq Review Panel..

        If the Company's Common Stock is no longer traded on The Nasdaq National
Market,  the  Company  intends  to apply for  listing  its  Common  Stock on The
American  Stock  Exchange or on a regional  exchange,  such as the Boston  Stock
Exchange.  If the  Company's  Common  Stock is not  approved  for listing on The
American Stock Exchange or a regional exchange,  trading in the Company's Common
Stock would be conducted in the over-the-counter  market in the "pink sheets" or
the  electronic  bulletin  board  administered  by the National  Association  of
Securities Dealers, Inc. In such an event, the liquidity and market price of the
Company's Common Stock may be adversely  impacted.  As a result, an investor may
find it more difficult to obtain accurate stock quotations.
                                       25
<PAGE>
Holders

        As of March 22,  1999  Abraxas  had  6,330,426  shares  of common  stock
outstanding and had approximately 1,650 stockholders of record.

Dividends

        Abraxas has not paid any cash  dividends  on its Common  Stock and it is
not presently determinable when, if ever, Abraxas will pay cash dividends in the
future.  The  Indentures  prohibit  the  payment  of cash  dividends  and  stock
dividends on the  Company's  Common  Stock.  See  "Management's  Discussion  and
Analysis of  Financial  Condition  and  Results of  Operations  - Liquidity  and
Capital Resources".


                                       26
<PAGE>





Item 6. Selected Financial Data

        The following  selected financial data are derived from the consolidated
financial statements of Abraxas. The data should be read in conjunction with the
Consolidated  Financial  Statements of the Company and Notes thereto,  and other
financial information included herein. See "Financial Statements."
<TABLE>
<CAPTION>

                                                         Year Ended December 31,
                                          ------------------------------------------------------
                                            1998        1997       1996        1995       1994
                                          --------   --------    --------     --------  --------
                                                   (In thousands except per share data)
<S>                                       <C>        <C>         <C>          <C>       <C>    
Total revenue                             $ 60,804   $ 70,931    $ 26,653     $13,817   $11,349
Income (loss) from continuing operations  $(83,960)  $ (6,485)   $  1,940     $(1,208)  $   113
Income (loss) per common share  from
  continuing operations                   $ (13.26)  $  (1.11)   $    .23     $  (.34)  $   .02
Weighted average shares outstanding          6,331      6,025       6,794       4,635     4,310
Total assets                              $291,498   $338,528    $304,842     $85,067   $75,361
Long-term debt                            $299,698   $248,617    $215,032     $41,601   $41,296
Total shareholders' equity (deficit)      $(63,522)  $ 26,813    $ 35,656     $37,062   $28,502

</TABLE>

Item 7. Management's  Discussion And Analysis Of Financial Condition And Results
Of Operations

        The following is a discussion of the  Company's  consolidated  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. See "Financial Statements".

Results of Operations

        The factors which most  significantly  affect the  Company's  results of
operations  are (1) the sales  prices of crude  oil,  natural  gas  liquids  and
natural  gas,  (2) the level of total  sales  volumes of crude oil,  natural gas
liquids and natural gas, (3) the level of and interest  rates on borrowings  and
(4) the level and success of exploration and development activity.

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


                                                Years Ended December 31,
                                      -----------------------------------------
                                           (dollars in thousands, except
                                                  per unit data)

                                            1998         1997         1996
                                       ------------- ------------ ------------
Operating revenue:
  Crude oil sales                         $    9,948   $   17,453   $    8,864
  NGLs sales                                   5,905       10,668        4,359
  Natural gas sales                           38,410       37,705       12,526
  Gas Processing revenue                       3,159        3,568          600
  Other                                        2,663        1,537          304
                                        ============= ============ ============
Total operating revenue                      $60,084   $   70,931   $   26,653
                                        ============= ============ ============

Operating income (loss)                   $  (56,500)  $   15,150   $    8,826

Crude oil production (MBbls)                   728.6        936.7        425.2
NGLs production (MBbls)                        867.4        992.3        299.5
Natural gas production (MMcf)               24,929.9     21,050.0      6,350.0

Average crude oil sales price (per Bbl)   $    13.65   $    18.63   $    20.85
Average NGLs sales price (per Bbl)        $     6.81   $    10.75   $    14.55
Average natural gas sales price (per Mcf) $     1.54   $     1.79   $     1.97

                                       27
<PAGE>

Comparison of Year Ended December 31, 1998 to Year Ended December 31, 1997

        Operating  Revenue.  During the year ended December 31, 1998,  operating
revenue from crude oil,  natural gas and natural gas liquids sales,  and natural
gas processing revenues decreased by $12.0 million from $69.4 million in 1997 to
$57.4 million in 1998, of which $11.8  million was  attributable  to the Wyoming
Properties.  This decrease was primarily  attributable to a decline in commodity
prices.  Production  volumes increased from 32,624 MMcfe in 1997 to 34,506 MMcfe
for the year ended December 1998, of which 8,609 MMcfe were  attributable to the
Wyoming Properties. Crude oil and natural gas liquids sales volumes decreased by
17.2% from 1,930 MBbls in 1997 to 1,596 MBbls during 1998, and natural gas sales
volumes  increased  by 18.4%  from  21.1  Bcf in 1997 to 24.9  Bcf in 1998.  The
increase in natural gas sales volumes was  attributable to increased  production
attributable  to the  Company's  ongoing  development  program on  existing  and
acquired properties. Crude oil sales volumes decreased 22.2% to 729 MBbls during
1998 from 937 MBbls in 1997 due primarily to the Company's decreased emphasis on
crude oil development  projects during 1998 because of the continuing decline in
crude oil prices. Natural gas liquids sales volumes decreased 12.6% to 867 MBbls
in 1998 from 992 MBbls in 1997. Approximately 66 MBbls of the decline in natural
gas  liquids  was  attributable  to the loss of  production  from the  Company's
Wyoming  Properties.  In the ten and one-half  months that the Company owned the
Wyoming  Properties  during 1998,  they  contributed  89 MBbls of crude oil, 454
MBbls of natural  gas liquids  and 5.4 Bcf of natural  gas  production.  Average
sales prices in 1998 were $13.65 per Bbl of crude oil,  $6.81 per Bbl of natural
gas liquids and $1.54 per Mcf of natural gas compared to $18.63 per Bbl of crude
oil,  $10.75 per Bbl of natural  gas liquids and $1.79 per Mcf of natural gas in
1997.  The Company  also had gas  processing  revenue of $3.1 million in 1998 as
compared to $3.6 million in 1997.

        Lease Operating Expense. Lease operating expense ("LOE") and natural gas
processing costs increased by $2.0 million from $16.1 million for the year ended
December  31, 1997 to $18.1  million for the same period of 1998,  of which $2.0
million  was  attributable  to the  Wyoming  Properties.  The  increase  was due
primarily to the greater number of wells owned by the Company for the year ended
December 31, 1998  compared to the year ended  December 31, 1997.  The Company's
LOE on a per Mcfe  basis for 1998 was $0.49  per Mcfe as  compared  to $0.46 per
Mcfe in 1997.  Natural gas processing cost remained  constant at $1.2 million in
1998 as compared to $1.2 million in 1997.

        G&A Expense.  G&A expense increased from $4.2 million for the year ended
December  31, 1997 to $5.3 million for the year ended  December  31, 1998,  as a
result  of the  Company's  hiring  additional  staff.  The  sale of the  Wyoming
Properties  will not have a material  effect on G&A expense.  The  Company's G&A
expense  on a per Mcfe  basis was $0.16 per Mcfe in 1998  compared  to $0.13 per
Mcfe for 1997.

        DD&A  Expense.  Due to the  increase  in sales  volumes of crude oil and
natural gas, depreciation, depletion and amortization ("DD&A") expense increased
by $600,000  from $30.6  million for the year ended  December  31, 1997 to $31.2
million  for the year  ended  December  31,  1998,  of which  $3.4  million  was
attributable to the Wyoming Properties. The Company's DD&A expense on a per Mcfe
basis for 1998 was $0.90 per Mcfe as compared to $0.94 per Mcfe in 1997.

        Interest Expense and Preferred Dividends. Interest expense and preferred
dividends  increased by $6.2 million from $24.6 million to $30.8 million for the
year end December 31, 1998 compared to 1997.  This increase was  attributable to
increased  borrowings by the Company  during 1998. In January 1998,  Abraxas and
Canadian  Abraxas issued $60.0 million in principal amount of 11.5% Senior Notes
due 2004,  Series C ("Series C Notes"),  and in June 1998,  Abraxas and Canadian
Abraxas exchanged all of their outstanding Series C Notes and their 11.5% Senior
Notes due 2004,  Series B in the  original  principal  amount of $215.0  million
("Series B Notes") for $275.0  million of the Series D Notes.  During 1998,  the
Company also made additional  borrowings  under the Credit  Facility.  Long-term
debt  increased  from $248.6  million at December 31, 1997 to $299.7  million at
December 31,  1998.  During  1998,  the Company  paid no preferred  dividends as
compared to $183,000 in 1997.  Preferred  dividends  were  eliminated on July 1,
1997 as the result of the  conversion of all  outstanding  preferred  stock into
Abraxas common stock.
                                       28
<PAGE>
        Ceiling Limitation Writedown.  The Company records the carrying value of
its  crude  oil and  natural  gas  properties  using  the full  cost  method  of
accounting  for  oil  and  gas  properties.   Under  this  method,  the  Company
capitalizes the cost to acquire, explore for and develop oil and gas properties.
Under the full cost accounting  rules, the net capitalized cost of crude oil and
natural gas properties less related deferred taxes,  are limited by country,  to
the lower of the unamortized cost or the cost ceiling, defined as the sum of the
present value of estimated unescalated future net revenues from proved reserves,
discounted at 10%, plus the cost of properties not being amortized, if any, plus
the lower of cost or estimated fair value of unproved properties included in the
costs being amortized, if any, less related income taxes. If the net capitalized
cost of crude oil and natural gas  properties  exceeds  the ceiling  limit,  the
Company  is  subject  to a ceiling  limitation  writedown  to the extent of such
excess.  A ceiling  limitation  writedown is a charge to earnings which does not
impact cash flow from operating  activities.  However, such writedowns do impact
the amount of the Company's stockholders' equity. The risk that the Company will
be required to writedown the carrying value of its oil and gas assets  increases
when oil and gas prices are depressed or volatile.  In addition,  writedowns may
occur if the Company has substantial  downward revisions in its estimated proved
reserves or if purchasers or  governmental  action cause an abrogation of, or if
the Company  voluntarily  cancels,  long-term contracts for its natural gas. For
the year ended  December  31,  1998,  the Company  recorded a writedown of $61.2
million related to its United States properties.  No assurance can be given that
the Company will not  experience  additional  writedowns  in the future.  Should
commodity prices continue to decline,  a further writedown of the carrying value
of the Company's crude oil and natural gas properties may be required.  See Note
17 of Notes to Consolidated Financial Statements.

Comparison of Year Ended December 31, 1997 to Year Ended December 31, 1996

        Operating  Revenue.  During the year ended December 31, 1997,  operating
revenue from crude oil,  natural gas and natural gas liquids sales,  and natural
gas processing revenues increased by $43.1 million from $26.3 million in 1996 to
$69.4 million in 1997.  This increase was  primarily  attributable  to increased
volumes  which  were  partially  offset  by  a  decline  in  commodity   prices.
 .Production  volume  increased  from 10,698  MMcfe to 32,624  MMcfe for the year
ended December 1997.  Crude oil and natural gas liquids sales volumes  increased
by 166% to 11,573 MMcfe during 1997 compared to 4,350 MMcfe in 1996, and natural
gas sales  volumes  increased by 231% to 21.1 Bcf in 1997 compared to 6.3 Bcf in
1996.  The increases in volumes were  attributable  to a full year of production
from property  acquisitions  completed during the fourth quarter of 1996 as well
as  increased  production  attributable  to the  Company's  ongoing  development
program on existing and acquired  properties.  Acquisitions  and the  subsequent
development  of the  acquired  properties  contributed  1,182  MBbls  of oil and
natural  gas  liquids  and 15.9 Bcf of  natural  gas.  Development  of  existing
properties  contributed  747 MBbls of oil and natural gas liquids and 5.2 Bcf of
natural gas during  1997.  Average  sales  prices in 1997 were $18.63 per Bbl of
crude oil, $10.75 per Bbl of natural gas liquid and $1.79 per Mcf of natural gas
compared  to $20.85 per Bbl of crude oil,  $14.55 per Bbl of natural gas liquids
and $1.97 per Mcf of natural gas in 1996.  The Company  also had gas  processing
revenue of $3.6 million in 1997 as a result of the  acquisition of CGGS Canadian
Gas Gathering Systems, Inc. ("CGGS") in November 1996. Prior to the acquisition,
the Company was not engaged in third party gas processing.

        Lease Operating Expense.  LOE and natural gas processing costs increased
by $10.0 million from $6.1 million for the year ended December 31, 1996 to $16.1
million  for the same period of 1997.  LOE  increased  by $9.0  million to $14.9
million  primarily  due to the greater  number of wells owned by the Company for
the year ended  December 31, 1997 compared to the year ended  December 31, 1996.
The Company's LOE on a per Mcfe basis for 1997 was $0.46 per Mcfe as compared to
$0.55 per Mcfe in 1996.  Natural gas processing  costs increased to $1.3 million
in 1997 as compared to $262,000 in 1996. The increase in gas processing  expense
was due to the acquisition of CGGS in November 1996.  Prior to the  acquisition,
the Company was not engaged in third party gas processing

        G&A Expense. G&A expense increased by $2.3 million from $1.9 million for
the year ended December 31, 1996 to $4.2 million for the year ended December 31,
1997,  as a result  of the  Company's  hiring  additional  staff,  including  an
increase in  personnel to manage and develop  properties  acquired in the fourth
quarter of 1996.  The  Company's  G&A  expense on a per Mcfe basis was $0.13 per
Mcfe in 1997 compared to $0.18 per Mcfe for 1996.
                                       29
<PAGE>
        DD&A  Expense.  Due to the  increase  in sales  volumes of crude oil and
natural gas,  DD&A expense  increased by $21.0 million from $9.6 million for the
year ended  December 31, 1996 to $30.6  million for the year ended  December 31,
1997. The Company's DD&A expense on a per Mcfe basis for 1997 was $0.94 per Mcfe
as compared to $0.90 per Mcfe in 1996.

        Interest Expense and Preferred Dividends. Interest expense and preferred
dividends  increased by $18.1 million from $6.4 million to $24.5 million for the
year end December 31, 1997,  compared to 1996. This increase was attributable to
increased  borrowings  by the  Company to finance the  acquisitions  consummated
during  1996.  In November  1996,the  Company  issued $215  million in principal
amount  of the  Series  B  Notes.  During  1997,  the  Company  made  additional
borrowings  under the Credit  Facility.  Long-term  debt  increased  from $215.0
million at December  31, 1996 to $248.6  million at December  31,  1997.  During
1997,  the Company paid $183,000 in preferred  dividends as compared to $366,000
in 1996.  Preferred  dividends were  eliminated on July 1, 1997 as the result of
the conversion of all outstanding preferred stock into Abraxas common stock.

        Ceiling Limitation Writedown.  For the year ended December 31, 1997, the
Company recorded a writedown of $4.6 million, $3.0 million after tax, related to
its Canadian properties

Liquidity and Capital Resources

        Current  Liquidity  Needs.  The  Company  has  historically  funded  its
operations and acquisitions  primarily through its cash flow from operations and
borrowings under the Credit Facility and other credit sources. In March 1999 the
Company  issued $63.5 million  principal  amount of the Secured Notes and repaid
all amounts outstanding under the Credit Facility and the New Cache Debt. Due to
severely depressed prices for crude oil and natural gas, the Company's cash flow
from operations has been substantially reduced.

      The Company will have two principal  sources of liquidity  during the next
12 months: (i) cash on hand, including the proceeds from the sale of the Secured
Notes after the repayment of the Credit Facility and the New Cache Debt,and (ii)
cash generated by operations. While the availability of capital resources cannot
be predicted with certainty and is dependent upon a number of factors  including
factors  outside  of  management's  control,  management  believes  that the net
proceeds from the sale of the Secured  Notes plus the  Company's  cash flow from
operations will be adequate to fund operations and planned capital  expenditures
for the remainder of 1999.

        The  Company's   ability  to  obtain   additional   financing   will  be
substantially  limited under the terms of the Indentures.  Substantially  all of
the Company's  crude oil and natural gas  properties  and natural gas processing
facilities  are subject to a first lien or charge for the benefit of the holders
of the Secured  Notes.  Thus,  the Company  will be required to rely on its cash
flow from  operations to fund its  operations  and service its debt. The Company
may also choose to issue equity securities or sell certain of its assets to fund
its operations, although the Indentures substantially limit the Company's use of
the proceeds of any such asset sales. Due to the Company's  diminished cash flow
from operations and the resulting  depressed prices for its common stock,  there
can be no assurance that the Company would be able to obtain equity financing on
terms satisfactory to the Company.
                                       30
<PAGE>
        General.  Capital  expenditures  in  1996,  1997 and  1998  were  $173.2
million,  $87.8 million and $57.9  million,  respectively.  The table below sets
forth the components of these capital expenditures on a historical basis for the
three years ended December 31, 1996, 1997 and 1998.

                                             Year Ended December 31,
                                       --------------------------------
                                         1996        1997         1998
                                       -------      -------      ------
                                             (dollars in thousands)
Expenditure category:
     Property acquisitions (1)         $154,484     $24,210      $ 2,729
     Development                         18,465      61,414       51,821
     Facilities and other                   206       2,140        3,311
                                       --------     -------      -------
     Total                             $173,155     $87,764      $57,861
                                       ========     =======      =======
- ----------
(1)Acquisition  cost includes  7,585,000  common  shares and  4,000,000  special
    warrants  of Grey Wolf  valued at  approximately  $3.7  million  in 1997 and
    71,063 shares of Abraxas  common stock valued at  approximately  $449,000 in
    1998  related  to the  acquisition  of  certain  crude oil and  natural  gas
    properties.

        Acquisitions  of crude oil and natural gas producing  properties  during
1996 accounted for the majority of the capital  expenditures made by the Company
during  1996.  During  1997  and  1998,  expenditures  were  primarily  for  the
development  of existing  properties.  These  expenditures  were funded  through
internally  generated  cash  flow,  the  issuance  of the  Series  C  Notes  and
borrowings under the Credit Facility.

        At December 31, 1998,  the Company had current  assets of $73.2  million
and current  liabilities of $22.5 million  resulting in working capital of $50.7
million.  The  material  components  of the  Company's  current  liabilities  at
December 31, 1998 include trade accounts payable of $10.5 million,  revenues due
third   parties  of  $5.8  million  and  accrued   interest  of  $5.5   million.
Stockholders'  equity  decreased  from $26.8  million at  December  31,  1997 to
$(64.0)  million at December 31, 1998,  primarily  due to a net loss incurred in
1998, including the impact of the impairment of the full cost pool. See "Ceiling
Limitation Writedown"

      The Company's current budget for capital  expenditures for 1999 other than
acquisition expenditures is $13.0 million,  approximately $10.0 million of which
has been spent to date. The remaining  portion of such  expenditures  is largely
discretionary  and  will  be made  primarily  for the  development  of  existing
properties.  Additional  capital  expenditures  may be made for  acquisition  of
producing  properties if such opportunities arise, but the Company currently has
no agreements, arrangements or undertakings regarding any material acquisitions.
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.  Should the
prices of crude oil and natural gas  continue to  decline,  the  Company's  cash
flows will  decrease  which may  result in a further  reduction  of the  capital
expenditures budget.

      Operating  activities  for the year ended  December 31, 1998 provided $4.8
million of cash to the  Company.  Investing  activities  provided  $2.0  million
during 1998 $59.4  million was provided  from the sale of oil and gas  producing
properties,  primarily the Wyoming  Properties  and $57.4 was used primarily for
the  acquisition  and development of producing  properties.  Financing  provided
$52.5 million during 1998.

      Operating  activities  for the year ended December 31, 1997 provided $36.6
million of cash to the Company.  Investing  activities  required  $74.5  million
during  1997  primarily  for  the   acquisition  and  development  of  producing
properties. Financing provided $33.3 million during 1997.

        Operating  activities  for the year ended  December 31,  1996,  provided
$13.5 million of cash.  Investing  activities  required $172.6 million primarily
for the acquisition of producing  properties.  Financing provided $163.0 million
during 1996.
                                       31
<PAGE>
        The  Company is heavily  dependent  on crude oil and  natural gas prices
which have historically been volatile. Although the Company has hedged a portion
of its natural gas  production  and intends to continue  this  practice,  future
crude oil and natural gas price declines would have a material adverse effect on
the Company's overall results, and therefore,  its liquidity.  Furthermore,  low
crude oil and natural gas prices  could  affect the  Company's  ability to raise
capital on terms favorable to the Company.

        Hedging Activities. In August 1995, the Company entered into a rate swap
agreement with a previous lender  relating to $25.0 million of principal  amount
of outstanding indebtedness. This agreement was assumed by the Company's lenders
under the Credit Facility. Under the agreement, the Company paid a fixed rate of
6.15% while the Banks paid 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 were due monthly. The agreement terminated in August 1998.

        In November 1996, the Company assumed hedge agreements extending through
October 2001 with a counterparty  involving various quantities and fixed prices.
These  hedge  agreements  provided  for  the  Company  to make  payments  to the
counterparty to the extent the market prices,  determined based on the price for
crude oil on the NYMEX and the Inside  FERC,  Tennessee  Gas  Pipeline Co. Texas
(Zone O) price  for  natural  gas  exceeded  certain  fixed  prices  and for the
counterparty  to make  payments to the  Company to the extent the market  prices
were less than such fixed prices. The Company accounted for the related gains or
losses (a loss of  $952,000 in 1997 and a gain of $268,000 in 1998) in crude oil
and  natural  gas  revenue in the period of the hedged  production.  The Company
terminated  these hedge  agreements in January 1999 and was paid $750,000 by the
counterparty for such termination.

        In  March  1998,  the  Company  entered  into a  costless  collar  hedge
agreement with Enron Capital and Trade  Resources  Corp. for 2,000 Bbls of crude
oil per day with a floor  price of $14.00 per Bbl and a ceiling  price of $22.30
per Bbl for crude oil on the NYMEX.  The agreement  was effective  April 1, 1998
and  extended  through  March 31,  1999.  Under the terms of the  agreement  the
Company  was paid when the average  monthly  price for crude oil on the NYMEX is
below the floor price and will pay the  counterparty  when the  average  monthly
price exceeds the ceiling  price.  During 1998,  the Company  realized a gain of
$282,000 on this agreement,  which is accounted for in crude oil and natural gas
revenue.  The Company  has also  entered  into a hedge  agreement  with  Barrett
Resources  Corporation  covering 1,000 Bbls per day of crude oil calling for the
Company  to be paid an  average  NYMEX  price of $13.98  per Bbl over the period
April 1, 1999 to October 31, 1999.

        As of March 1, 1999,  the Company had 37.0 MMBTUpd  hedged at an average
NYMEX price of  approximately  $1.93 per MMBTU from April 1, 1999 to October 31,
1999 and 2.4 MMBTUpd at an average NYMEX price of approximately  $1.10 per MMBTU
from November 1, 1998 to October 31, 2000.  Of the 37.0 MMBTUpd  hedged at $1.93
per MMBTU,  20.0  MMBTUpd is hedged with  Barrett  Resources  Corporation,  11.0
MMBTUpd is hedged  with  Engage  Energy  Capital  Canada LP, and 6.0  MMBTUpd is
hedged  with  Amoco.  The 2.4  MMBTUpd  hedged at $1.10 per MMBTU is hedged with
Engage  Energy  Capital  Canada LP and was assumed by the Company in  connection
with the acquisition of New Cache.

        Long-Term Indebtedness

        Series D Notes.  On November  14,  1996,  Abraxas and  Canadian  Abraxas
consummated the offering of $215.0 million of their 11.5% Senior Notes due 2004,
Series A,  which were  exchanged  for the Series B Notes in  February  1997.  On
January 27,  1998,  Abraxas and  Canadian  Abraxas  completed  the sale of $60.0
million  of the  Series C Notes.  The Series B Notes and the Series C Notes were
subsequently exchanged for $275.0 million in principal amount the Series D Notes
in June 1998.

        Interest  on the Series D Notes is payable  semi-annually  in arrears on
May 1 and  November 1 of each year at the rate of 11.5% per annum.  The Series D
Notes are redeemable, in whole or in part, at the option of Abraxas and Canadian
Abraxas, on or after November 1, 2000, at the redemption prices set forth below,
plus accrued and unpaid  interest to the date of redemption,  if redeemed during
the 12-month period commencing on November 1 of the years set forth below:
                                       32
<PAGE>


               Year                                         Percentage

               2000........................................   105.750%
               2001........................................   102.875%
               2002 and thereafter.........................   100.000%

        In  addition,  at any time on or prior to November 1, 1999,  Abraxas and
Canadian  Abraxas  may,  at  their  option,  redeem  up to 35% of the  aggregate
principal  amount  of the  Series D Notes  originally  issued  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 Series D 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  65% of the  aggregate
principal amount of the Series D Notes remains outstanding.

        The Series D Notes are joint and  several  obligations  of  Abraxas  and
Canadian  Abraxas,  and rank pari passu in right of payment to all  existing and
future unsubordinated indebtedness of Abraxas and Canadian Abraxas. The Series D
Notes rank senior in right of payment to all future subordinated indebtedness of
Abraxas and Canadian Abraxas.  The Series D Notes will,  however, be effectively
subordinated  to the Notes to the  extent of the  value of the  Collateral.  The
Series D Notes are  unconditionally  guaranteed,  jointly and severally,  by the
Subsidiary  Guarantors.  The guarantees are general unsecured obligations of the
Subsidiary   Guarantors  and  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 are effectively  subordinated to the Notes to the extent of the value
of the Collateral.

        Upon a Change of Control  (as defined in the Series D  Indenture),  each
holder of the Series D Notes will have the right to require Abraxas and Canadian
Abraxas  to  repurchase  all or a portion of such  holder's  Series D 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,  Abraxas and Canadian
Abraxas will be obligated to offer to  repurchase  the Series D 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.

        The Series D Indenture  provides,  among other things,  that the Company
may not,  and may not cause or permit  certain  of its  subsidiaries,  including
Canadian  Abraxas,  to,  directly or  indirectly,  create or otherwise  cause to
permit  to exist or become  effective  any  encumbrance  or  restriction  on the
ability of such  subsidiary  to pay  dividends  or make  distributions  on or in
respect  of its  capital  stock,  make  loans or  advances  or pay debts owed to
Abraxas,  guarantee any indebtedness of Abraxas or transfer any of its assets to
Abraxas except for such encumbrances or restrictions existing under or by reason
of: (i) applicable  law; (ii) the Series D Indenture;  (iii) the Credit Facility
(as defined in the Series D Indenture); (iv) customary non-assignment provisions
of any contract or any lease governing  leasehold interest of such subsidiaries;
(v)  any  instrument  governing  indebtedness  assumed  by  the  Company  in  an
acquisition,  which  encumbrance  or  restriction  is  not  applicable  to  such
subsidiaries  or the  properties or assets of such  subsidiaries  other than the
entity or the  properties  or assets of the entity so acquired;  (vi)  customary
restrictions  with  respect  to  subsidiaries  of  the  Company  pursuant  to an
agreement  that has been  entered  into for the sale or  disposition  of capital
stock or assets of such  subsidiaries  to be consummated in accordance  with the
terms of the Series D Indenture solely in respect of the assets or capital stock
to be  sold or  disposed  of;  (vii)  any  instrument  governing  certain  liens
permitted by the Indenture, to the extent and only to the extent such instrument
restricts the transfer or other  disposition  of assets subject to such lien; or
(viii)  an  agreement   governing   indebtedness   incurred  to  refinance   the
indebtedness issued, assumed or incurred pursuant to an agreement referred to in
clause (ii), (iii) or (v) 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 of the Series D Notes in any
material respect as determined by the Board of Directors of the Company in their
reasonable  and  good  faith  judgment  that  the  provisions  relating  to such
encumbrance or restriction  contained in the applicable agreement referred to in
such clause (ii), (iii) or (v).
                                       33
<PAGE>
        Secured Notes.  In March 1999 the Company  consummated the sale of $63.5
million  of  the  Secured  Notes.  Interest  on the  Secured  Notes  is  payable
semi-annually  in cash in  arrears  on March  15 and  September  15,  commencing
September 15, 1999.  The Secured Notes are  redeemable,  in whole or in part, at
the option of Abraxas on or after March 15, 2001, at the  redemption  prices set
forth below,  plus  accrued and unpaid  interest to the date of  redemption,  if
redeemed  during the  12-month  period  commencing  on March 15 of the years set
forth below:

               Year                                       Percentage

               2001.....................................    103.000%
               2002 and thereafter......................    100.000%

At any time, or from time to time, prior to March 15, 2001,  Abraxas may, at its
option,  use all or a portion  of the net cash  proceeds  of one or more  equity
offerings to redeem up to 35% of the aggregate  original principal amount of the
Notes at a redemption price equal to 112.875% of the aggregate  principal amount
of the Notes to be redeemed,  plus accrued and unpaid  interest and  liquidating
damages, if any.

The  Notes  are  senior  indebtedness  of  Abraxas  secured  by a first  lien on
substantially all of the crude oil and natural gas properties of Abraxas and the
shares of Grey Wolf owned by  Abraxas.  The  Secured  Notes are  unconditionally
guaranteed  (the  "Guarantees")  on a senior basis,  jointly and  severally,  by
Canadian  Abraxas,  New Cache and Sandia  Oil & Gas  Corporation  ("Sandia"),  a
wholly-owned  subsidiary  of  Abraxas  (collectively,   the  "Guarantors").  The
Guarantees  are  secured by  substantially  all of the crude oil and natural gas
properties  of the  Guarantors  and the  shares of Grey Wolf  owned by  Canadian
Abraxas.

Upon a Change of Control,  each holder of the Secured  Notes will have the right
to require  Abraxas to repurchase  such  holder's  Secured 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 Secured 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

The Secured Notes Indenture contains certain covenants that limit the ability of
Abraxas  and  certain  of  its  subsidiaries,   including  the  Guarantors  (the
"Restricted   Subsidiaries")   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,  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.

        The Secured  Notes  Indenture  provides,  among other  things,  that the
Company may not, and may not cause or permit the  Restricted  Subsidiaries,  to,
directly or indirectly,  create or otherwise  cause to permit to exist or become
effective any  encumbrance or  restriction on the ability of such  subsidiary to
pay dividends or make  distributions on or in respect of its capital stock, make
loans  or  advances  or pay  debts  owed  to  Abraxas  or any  other  Restricted
Subsidiary,  guarantee  any  indebtedness  of  Abraxas  or any other  Restricted
Subsidiary  or  transfer  any of its assets to  Abraxas or any other  Restricted
Subsidiary  except for such  encumbrances or  restrictions  existing under or by
reason  of:  (i)  applicable   law;  (ii)  the   Indentures;   (iii)   customary
non-assignment  provisions  of any  contract  or any lease  governing  leasehold
interest  of such  subsidiaries;  (iv)  any  instrument  governing  indebtedness
assumed by the Company in an  acquisition,  which  encumbrance or restriction is
not applicable to such Restricted Subsidiary or the properties or assets of such
subsidiary  other than the entity or the  properties  or assets of the entity so
acquired;  (v) agreements  existing on the Issue Date (as defined in the Secured
Notes  Indenture) to the extent and in the manner such agreements were in effect
on the Issue Date; (vi) customary restrictions with respect to 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 Secured Notes  Indenture or any
Security Documents (as defined in the Secured Notes Indenture) solely in respect
of the assets or capital  stock to be sold or disposed of; (vii) any  instrument
governing certain liens permitted by the Secured Notes Indenture,  to the extent
and  only  to the  extent  such  instrument  restricts  the  transfer  or  other
disposition  of assets  subject to such lien;  or (viii) an agreement  governing
                                       34
<PAGE>
indebtedness incurred to refinance the indebtedness issued,  assumed or incurred
pursuant  to an  agreement  referred  to in  clause  (ii),  (iv)  or (v)  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 of the Secured Notes in any material respect as determined by the
Board of Directors of the Company in their  reasonable  and good faith  judgment
that the provisions relating to such encumbrance or restriction contained in the
applicable agreement referred to in such clause (ii), (iv) or (v).

      Net Operating Loss  Carryforwards.  At December 31, 1998, the Company had,
subject to the limitations  discussed below, $46.6 million of net operating loss
carryforwards for U.S. tax purposes,  of which  approximately  $43.8 million are
available for utilization  without  limitation.  These loss  carryforwards  will
expire from 2002 through 2010 if not utilized. At December 31, 1998, the Company
had approximately $11.9 million of net operating loss carryforwards for Canadian
tax purposes  which expire in varying  amounts in 2002-2005.  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 $4.9 million in net
operating  loss  carryforwards  generated  prior to  December  31,  1991 will be
limited to  approximately  $235,000  per year.  As a result of the  issuance  of
additional  shares  of  common  stock for  acquisitions  and sales of stock,  an
additional  ownership  change  under  Section  382  occurred  in  October  1993.
Accordingly,  it is  expected  that  the  use of all  U.S.  net  operating  loss
carryforwards  generated through October 1993, or $8.9 million,  will be limited
to approximately $1 million per year subject to the lower limitations  described
above. Of the $8.9 million net operating loss  carryforwards,  it is anticipated
that the maximum net  operating  loss that may be utilized  before it expires is
$6.1  million.  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 $5.9 million and
$32.8   million  for  deferred  tax  assets  at  December  31,  1997  and  1998,
respectively.

Year 2000

        The Company has been and is assessing  the impact of the Year 2000 issue
on its operations, including the development and implementation of project plans
and cost estimates required to make its information system  infrastructure  Year
2000 compliant.  Substantially  all of the Company's  computer software has been
obtained  from third party  vendors.  The Company has been advised by vendors of
each of its most  material  hardware and software  systems that such systems are
Year 2000  compliant.  The Company  has not  undertaken  independent  testing to
verify the accuracy of such assertions.

        To date,  the Company  has spent  approximately  $100,000  in  replacing
computer  hardware  and  software it did not believe to be Year 2000  compliant,
some of which the Company had already  anticipated  replacing for other reasons.
Such expenditures have been funded out of the Companys'  operational cash flows.
Based on existing  information,  the Company does not anticipate having to spend
any material  further  amounts to become Year 2000  compliant  and that any such
required amounts will not have a material effect on the financial position, cash
flows or results of operations of the Company.

        There is a risk of Year 2000  related  failures.  These  failures  could
result in an  interruption  in or a failure of certain  business  activities  or
functions.  Such failures could  materially  and adversely  affect the Company's
results of operations,  liquidity or financial condition. Due to the uncertainty
surrounding  the Year 2000 problem,  including the  uncertainty of the Year 2000
readiness of the Company's  customers and contractors,  the Company is unable at
this time to determine  the true impact of the Year 2000 problem to the Company.
The  principal  areas of risk are thought to be oil and gas  production  control
systems,  other imbedded  operations  control  systems and third party Year 2000
readiness. There can be no assurance,  however, that there will not be delay in,
or increased costs associated with the implementation of measures to address the
Year 2000 issue or that such measures will prove effective in resolving all Year
2000  related  issues.  Furthermore,  there can be no  assurance  that  critical
contractors,  customers or other  parties  with which the Company does  business
will not experience  failures.  A likely worst case scenario is that despite the
Company's efforts there could be failures of control systems,  which might cause
some  processes to be shut down.  Such  failures  could have a material  adverse
impact on the  Company's  operations.  Their  failure due to a Year 2000 problem
could prevent the Company from delivering product and cause a material impact to
Company cash flow.
                                       35
<PAGE>
Item 7A. Quantitative and Qualitative Disclosures about Market Risk.

  Commodity Price Risk

        The Company's  exposure to market risks rest primarily with the volatile
nature of crude oil,  natural gas and natural  gas liquids  prices.  The Company
manages  crude oil and natural gas prices  through the periodic use of commodity
price  hedging  agreements.  See and  "Management's  Discussion  and Analysis of
Financial Condition and Results of Operations-Liquidity  and Capital Resources".
Assuming 1998 production  levels, a 5% further decline in crude oil, natural gas
and natural gas liquid prices would have reduced the Company's operating revenue
cash flow and net  income  by  approximately  $2.5  million  for the year  ended
December 31, 1998.

  Interest Rate Risk

        At December 31, 1998,  approximately 8% of the Company's  long-term debt
bears interest at variable rates. See  "MD&A-Liquidity  and Capital  Resources".
Accordingly,  the  Company's  earnings  and after tax cash flow are  affected by
changes in interest rates.  Assuming the current level of borrowings at variable
interest  rates and assuming a two  percentage  point change in the 1998 average
interest  rate  under  these  borrowings,  it is  estimated  that the  Company's
interest expense would have changed by approximately $560,000. The borrowings by
the Company subject to variable interest rates are not material to the Company's
total debt. All borrowings  subject to variable interest rates were paid in full
by fixed rate debt in March 1999.  At December  31,  1998,  $274  million of the
Company's debt was at a fixed rate with a market value of $212,350 million.  The
assumed 2% change in the interest rate would not have a material  impact on this
market value.

  Foreign Currency

        The Company's Canadian  operations are measured in the local currency of
Canada.  As a result , the  Company's  financial  results  could be  affected by
changes in foreign  currency  exchange rates or weak economic  conditions in the
foreign markets. Canadian operations reported a pre tax loss of $9.6 million for
the year ended  December 31, 1998. It is estimated that a 5% change in the value
of the U.S.  dollar to the Canadian  dollar would have changed the Company's net
income  by  approximately  $.27  million.  The  Company  does not  maintain  any
derivative  instruments to mitigate the exposure to translation  risk.  However,
this does not  preclude  the  adoption of  specific  hedging  strategies  in the
future.

                                       36
<PAGE>

Item 8. Financial Statements.

        For the financial  statements  and  supplementary  data required by this
Item 8, see the Index to Consolidated Financial Statements and Schedules.

Item  9.  Changes  in and  Disagreements  with  Accountants  on  Accounting  and
Financial Disclosure.

        Not Applicable.

                                    PART III

Item 10. Directors and Executive Officers of the Registrant.

        There is  incorporated  in this Item 10 by reference that portion of the
Company's definitive proxy statement for the 1999 Annual Meeting of Stockholders
which appears  therein under the caption  "Election of Directors".  See also the
information in Item 4a of Part I of this Report.

Item 11. Executive Compensation.

        There is  incorporated  in this Item 11 by reference that portion of the
Company's definitive proxy statement for the 1999 Annual Meeting of Stockholders
which appears  therein under the caption  "Executive  Compensation",  except for
those parts  under the  captions  "Compensation  Committee  Report on  Executive
Compensation", "Performance Graph" and "Report on Repricing of Options".

Item 12. Security Ownership of Certain Beneficial Owners and Management.

        There is  incorporated  in this Item 12 by reference that portion of the
Company's definitive proxy statement for the 1999 Annual Meeting of Stockholders
which  appears  therein  under the caption  "Securities  Holdings  of  Principal
Stockholders, Directors and Officers".


Item 13. Certain Relationships and Related Transactions.

        There is  incorporated  in this Item 13 by reference that portion of the
Company's definitive proxy statement for the 1999 Annual Meeting of Stockholders
which appears therein under the caption "Certain Transactions."



                                       37
<PAGE>

                                     PART IV

Item 14. Exhibits, Financial Statement Schedules and Reports on Form 8-K

(a)1.   Consolidated Financial Statements                                 Page

        Report of Ernst & Young, LLP, Independent Auditors.................F-2

        Consolidated Balance Sheets,
          December 31, 1998 and 1997.......................................F-3

        Consolidated Statements of Operations,
          Years Ended December 31, 1998, 1997, and 1996....................F-5

        Consolidated Statements of Stockholders' Equity (deficit)
           Years ended December 31, 1998, 1997 and 1996....................F-7

        Consolidated Statements of Cash Flows
          Years Ended December 31, 1998, 1997 and 1996.....................F-9

        Notes to Consolidated Financial Statements........................ F-11

(a)2.   Financial Statement Schedules

        All schedules  have been omitted  because they are not  applicable,  not
required under the instructions or the information requested is set forth in the
consolidated financial statements or related notes thereto.

Item 14 (b): Reports on Form 8-K Filed in the Fourth Quarter of 1998

   Form 8-K dated  November  30,  1998 and  amended on January  27, 1999 Item 2.
      Acquisition or Disposition of Assets - Divestiture of Wyoming  Properties.
      Item  7.  Financial   Statements  and  Exhibits  -  Pro  Forma   financial
      statements.

(a)3.Exhibits

         The following  Exhibits have previously been filed by the Registrant or
are included following the Index to Exhibits.

Exhibit Number.                                Description

3.1 Articles of Incorporation of Abraxas. (Filed as Exhibit 3.1 to the Company's
Registration  Statement  on  Form  S-4,  No.  33-36565  (the  "S-4  Registration
Statement")).

3.2  Articles of Amendment to the  Articles of  Incorporation  of Abraxas  dated
October 22, 1990 (Filed as Exhibit 3.3 to the S-4 Registration Statement).

3.3  Articles of Amendment to the  Articles of  Incorporation  of Abraxas  dated
December 18, 1990. (Filed as Exhibit 3.4 to the S-4 Registration Statement).

3.4 Articles of Amendment to the Articles of Incorporation of Abraxas dated June
8, 1995. (Filed as Exhibit 3.4 to the Company's  Registration  Statement on Form
S-3, No. 333-398 (the "S-3 Registration Statement")).

3.5 Amended  and  Restated  Bylaws of Abraxas.  (Filed as Exhibit 3.5 to the S-3
Registration Statement).

                                       38
<PAGE>

4.1 Specimen Common Stock  Certificate of Abraxas.  (Filed as Exhibit 4.1 to the
S-4 Registration Statement).

4.2 Specimen  Preferred Stock  Certificate of Abraxas.  (Filed as Exhibit 4.2 to
the Company's Annual Report on Form 10-K filed on March 31, 1995).

4.3 Rights  Agreement  dated as of  December 6, 1994  between  Abraxas and First
Union  National Bank of North  Carolina  ("FUNB").  (Filed as Exhibit 4.1 to the
Company's Registration Statement on Form 8-A filed on December 6, 1994).

4.4  Amendment  to Rights  Agreement  dated as of July 14,  1997 by and  between
Abraxas and American  Stock  Transfer and Trust  Company  (Filed as Exhibit 1 to
Amendment  No. 1 to the  Company's  Registration  Statement on Form 8-A filed on
August 20, 1997).

4.5 Indenture dated January 27, 1998 by and among the Company,  Canadian Abraxas
and IBJ Schroder  Bank & Trust  Company  (filed as Exhibit 4.1 to the  Company's
Current Report on Form 8-K dated February 5, 1998).

4.6 Indenture dated March 26, 1999 by and among the Company,  Canadian  Abraxas,
New Cache,  Sandia and  Norwest  Bank  Minnesota,  National  Association  (Filed
herewith).

4.7 Form of Series D Note (Filed as Exhibit A to Exhibit 4.5).

4.8 Form of Secured Note (filed as Exhibit A to Exhibit 4.6).

*10.1 Abraxas  Petroleum  Corporation 1984  Non-Qualified  Stock Option Plan, as
amended and restated.  (Filed as Exhibit 10.7 to the Company's  Annual Report on
Form 10-K filed April 14, 1993).

*10.2 Abraxas Petroleum Corporation 1984 Incentive Stock Option Plan, as amended
and restated. (Filed as Exhibit 10.8 to the Company's Annual Report on Form 10-K
filed April 14, 1993).

*10.3 Abraxas  Petroleum  Corporation  1993 Key  Contributor  Stock Option Plan.
(Filed as Exhibit 10.9 to the  Company's  Annual Report on Form 10-K filed April
14, 1993

*10.4  Abraxas  Petroleum  Corporation  401(k) Profit  Sharing  Plan.  (Filed as
Exhibit 10.4 to the Exchange Offer Registration Statement).

*10.5  Abraxas  Petroleum  Corporation  Director  Stock Option  Plan.  (Filed as
Exhibit 10.5 to the Exchange Offer Registration Statement).

*10.6 Abraxas Petroleum Corporation Restricted Share Plan for Directors.  (Filed
as Exhibit 10.20 to the Company's  Annual Report on Form 10-K filed on April 12,
1994).

*10.7 Abraxas  Petroleum  Corporation  1994 Long Term Incentive Plan.  (Filed as
Exhibit  10.21 to the  Company's  Annual  Report on Form 10-K filed on April 12,
1994).

*10.8 Abraxas Petroleum  Corporation Incentive Performance Bonus Plan. (Filed as
Exhibit  10.24 to the  Company's  Annual  Report on Form 10-K filed on April 12,
1994).

10.9 Registration Rights and Stock Registration Agreement dated as of August 11,
1993 by and  among  Abraxas,  EEP and  Endowment  Energy  Partners  II,  Limited
Partnership  ("EEP II").  (Filed as Exhibit 10.33 to the Company's  Registration
Statement  on  Form  S-1,  Registration  No.  33-66446  (the  "S-1  Registration
Statement")).

                                       39
<PAGE>
10.10 First Amendment to Registration  Rights and Stock  Registration  Agreement
dated June 30, 1994 by and among Abraxas, EEP and EEP II. (Filed as Exhibit 10.3
to the Registrant's Current Report on Form 8-K filed on July 14, 1994).

10.11 Second Amendment to Registration  Rights and Stock Registration  Agreement
dated September 2, 1994 by and among Abraxas,  EEP and EEP II. (Filed as Exhibit
10.3 to the Company's Annual Report on Form 10-K filed March 31, 1995)

10.12 Third Amendment to Registration  Rights and Stock  Registration  Agreement
dated November 17, 1995 by and among Abraxas,  EEP and EEP II. (Filed as Exhibit
10.17 to the Company's Annual Report on Form 10-K filed March 31, 1995)

10.13  Common  Stock  Purchase  Warrant  dated as of December  18, 1991  between
Abraxas and EEP. (Filed as Exhibit 12.3 to the Company's  Current Report on Form
8-K filed January 9, 1992).

10.14 Common Stock Purchase  Warrant dated as of August 1, 1993 between  Abraxas
and EEP. (Filed as Exhibit 10.35 to the S-1 Registration Statement).

10.15 Common Stock  Purchase  Warrant dated August 11, 1993 between  Abraxas and
EEP II. (Filed as Exhibit 10.36 to the S-1 Registration Statement).

10.16 Common Stock  Purchase  Warrant dated August 11, 1993 between  Abraxas and
Associated Energy Managers, Inc. (Filed as Exhibit 10.37 to the S-1 Registration
Statement).

10.17 Letter dated  September 2, 1994 from Abraxas to EEP and EEP II.  (Filed as
Exhibit 10.13 to the Company's Annual Report on Form 10-K filed March 31, 1995)

10.18  Warrant  Agreement  dated as of July 27, 1994  between  Abraxas and FUNB.
(Filed as Exhibit 10.3 to the Company's  Current Report on Form 8-K filed August
5, 1994).

10.19 Warrant Agreement dated as of December 16, 1994, between Abraxas and FUNB.
(Filed as Exhibit 10.23 to the Company's  Annual Report on Form 10-K filed March
31, 1995).

10.20 First  Amendment to Warrant  Agreement dated as of August 31, 1995 between
Abraxas and FUNB. (Filed as Exhibit 10.21 to the S-3 Registration Statement).

10.21 Form of Indemnity  Agreement between Abraxas and each of its directors and
officers. (Filed as Exhibit 10.30 to the S-1 Registration Statement).

*10.22 Employment  Agreement between Abraxas and Robert L. G. Watson.  (Filed as
Exhibit 10.23 to the S-3 Registration Statement).

*10.23 Employment  Agreement  between Abraxas and Chris E. Williford.  (Filed as
Exhibit 10.24 to the S-3 Registration Statement).

*10.24  Employment  Agreement  between Abraxas and Stephen T. Wendel.  (Filed as
Exhibit 10.26 to the S-3 Registration Statement).

*10.25 Employment Agreement between Abraxas and Robert W. Carington,  Jr. (Filed
herewith).

10.26  Registration  Rights  Agreement  dated as of March 26,  1999 by and among
Abraxas,  Canadian  Abraxas,  New Cache,  Sandia and  Jefferies & Company,  Inc.
(Filed herewith).

10.27  Management  Agreement  dated  November  14, 1996 by and between  Canadian
Abraxas and Cascade Oil & Gas Ltd. (Filed as Exhibit 10.36 to the Exchange Offer
Registration Statement).

                                       40
<PAGE>
10.28  Agreement of Limited  Partnership  of Abraxas  Wamsutter L.P. dated as of
November 12, 1998 by and between  Wamsutter  Holdings,  Inc. and TIFD III-X Inc.
(Filed  as  Exhibit  10.2 to the  Company's  Current  Report  on Form 8-K  filed
November 30,1998).

21.1 Subsidiaries of Abraxas. (Filed herewith).

23.1 Consent of Independent Auditors. (Filed herewith).

23.2 Consent of DeGolyer & MacNaughton. (Filed herewith).

23.3 Consent of McDaniel & Associates Consultants, Ltd. (Filed herewith).

27.1 Financial Data Schedule (Filed herewith).

*     Management Compensatory Plan or Agreement.



                                       41
<PAGE>
                          INDEX TO FINANCIAL STATEMENTS

                                                                          Page
Abraxas Petroleum Corporation and Subsidiaries

Report of Independent Auditors .............................................F-2
Consolidated Balance Sheets at December 31, 1997 and 1998 ..................F-3
Consolidated Statements of Operations for the years ended
  December 31, 1996, 1997 and 1998 .........................................F-5
Consolidated Statements of Stockholders' Equity (Deficit)
 for the years ended December 31, 1996, 1997 and 1998 ......................F-6
Consolidated Statements of Cash Flows for the years ended
 December 31, 1996, 1997 and 1998 ..........................................F-8
Notes to Consolidated Financial Statements .................................F-10







<PAGE>
The Board of Directors and Stockholders
Abraxas Petroleum Corporation

        We have audited the accompanying  consolidated balance sheets of Abraxas
Petroleum Corporation and Subsidiaries as of December 31, 1997 and 1998, and the
related consolidated  statements of operations,  stockholders' equity (deficit),
and cash flows for each of the three  years in the  period  ended  December  31,
1998.  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, 1997 and 1998, and the
consolidated  results of their  operations  and their cash flows for each of the
three years in the period ended December 31, 1998, in conformity  with generally
accepted accounting principles.



                                                   ERNST & YOUNG LLP

San Antonio, Texas
March 17, 1999
except for Note 2, as to which the date is
March 27, 1999


                                      F-2
<PAGE>
<TABLE>
<CAPTION>
                                ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                                          CONSOLIDATED BALANCE SHEETS
                                          
                                                    ASSETS


                                                                December 31
                                                       -------------------------------
                                                            1997             1998
                                                       --------------- ---------------
                                                               (In thousands)
<S>                                                      <C>             <C>        
Current assets:
  Cash ..........................................        $     2,876     $    61,390
  Accounts receivable, less allowance for
    doubtful accounts:
      Joint owners ..............................              2,149           3,337
      Oil and gas production sales ..............             11,194           6,098
      Other .....................................              1,259           1,070
                                                       --------------- ---------------
                                                              14,602          10,505
  Equipment inventory ...........................                367             504
  Other current assets ..........................                508             844
                                                       --------------- ---------------
    Total current assets ........................             18,353          73,243

Property and equipment...........................            385,442         374,316
Less accumulated depreciation, depletion, and             
  amortization ..................................             74,597         165,867 
                                                       --------------- ---------------
  Net property and equipment based on the full cost
    method of accounting for oil and gas properties
    of which $11,519 and $10,675 at
    December 31, 1997 and 1998, respectively,                
    were excluded from amortization .............            310,845         208,449
Deferred financing fees, net of accumulated
  amortization of $1,540 and $2,911 at
  December 31, 1997 and 1998,                                 
  respectively ..................................              8,072           8,059
Other assets ....................................              1,258           1,747
                                                       --------------- ---------------
  Total assets ..................................        $   338,528     $   291,498
                                                       =============== ===============


</TABLE>

                            See accompanying notes.



                                      F-3
<PAGE>

<TABLE>
<CAPTION>
                                ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                                    CONSOLIDATED BALANCE SHEETS (CONTINUED)

                                LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)

                                                                December 31
                                                       -------------------------------
                                                            1997            1998
                                                       --------------- ---------------
                                                               (In thousands)
<S>                                                      <C>             <C>        
Current liabilities: 
  Accounts payable ................................      $    17,120     $    10,499
  Oil and gas production payable ..................            2,819           5,846
  Accrued interest ................................            4,622           5,522
  Income taxes payable ............................              164             160
  Other accrued expenses ..........................            2,732             527
                                                       ---------------   --------------
    Total current liabilities .....................           27,457          22,554

Long-term debt:
  Credit facility .................................           31,500          15,700
  Senior notes ....................................          215,000         277,471
  Other............................................            2,117           6,527
                                                       ---------------   ---------------
                                                             248,617         299,698

Deferred income taxes .............................           27,751          19,820
Minority interest in foreign subsidiary ...........            4,813           9,672
Future site restoration  ..........................            3,077           3,276

Commitments and contingencies

Stockholders' equity (Deficit):
  Convertible preferred stock, 8%, authorized
   1,000,000 shares; -0- shares issued and                         
    outstanding....................................                -               -
  Common stock, par value $.01 per share -
    authorized 50,000,000 shares; issued
    6,422,540 and 6,501,441 shares at                             
    December 31, 1997 and 1998, respectively ....                 63              65
  Additional paid-in capital ......................           51,118          51,695
  Accumulated deficit .............................          (19,185)       (103,145)
  Treasury stock, at cost, 53,023 and 171,015 shares
    at December 31, 1997 and 1998, respectively ...             (281)         (1,167)
  Accumulated other comprehensive income (loss)....           (4,902)        (10,970)
                                                       --------------  ---------------
Total stockholders' equity (deficit)                          26,813         (63,522)
                                                       --------------- ---------------
                                                      
    Total liabilities and stockholders' equity           
      (deficit)....................................      $   338,528     $   291,498
                                                       =============== ===============

</TABLE>


                            See accompanying notes.


                                      F-4
<PAGE>
<TABLE>
<CAPTION>
                                ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                                     CONSOLIDATED STATEMENTS OF OPERATIONS


                                                               Year Ended December 31
                                                     -------------------------------------------
                                                        1996           1997            1998
                                                     -------------------------------------------
                                                       (In thousands except per share data)
<S>                                                  <C>            <C>            <C>        
Reveune:
  Oil and gas production revenues ...............    $    25,749    $    65,826    $    54,263
  Gas processing revenues .......................            600          3,568          3,159
  Rig revenues ..................................            139            334            469
  Other  ........................................            165          1,203          2,193
                                                     -------------  ------------   -------------
                                                          26,653         70,931         60,084
Operating costs and expenses:
  Lease operating and production taxes ..........          5,858         14,881         16,841
  Gas processing costs ..........................            262          1,252          1,250
  Depreciation, depletion, and amortization .....          9,605         30,581         31,226
  Rig operations ................................            169            296            521
  Proved property impairment ....................              -          4,600         61,224
  General and administrative ....................          1,933          4,171          5,522
                                                     ------------  -------------   ------------
                                                          17,827         55,781        116,584
                                                     ------------  -------------   ------------
Operating income (loss)..........................          8,826         15,150        (56,500)

Other (income) expense:
  Interest income ...............................           (254)          (320)          (805)
  Amortization of deferred financing fee ........            280          1,260          1,571
  Interest expense ..............................          6,241         24,620         30,848
  Other .........................................            373           (369)            --
                                                     ------------  -------------   ------------
                                                           6,640         25,191         31,614
                                                     ------------  -------------   ------------
Income (loss) before taxes and extraordinary item          2,186        (10,041)       (88,114)
Income tax expense (benefit):
  Current .......................................            176            244            231
  Deferred ......................................              -         (4,135)        (4,389)
Minority interest in income of consolidated
  foreign subsidiary ............................             70            335              4
                                                     ------------  -------------   ------------
Income (loss) before extraordinary item .........          1,940         (6,485)       (83,960)

Extraordinary item:
  Debt extinguishment costs ...................      $      (427)   $         -    $         -
                                                     ------------  -------------   ------------
Net income (loss) .............................            1,513         (6,485)       (83,960)
Less dividend requirement on cumulative                     
  preferred stock .............................             (366)          (183)            --
                                                     ------------  -------------   ------------
Net income (loss) applicable to common stock ..      $     1,147    $    (6,668)   $   (83,960)
                                                     ------------  -------------   ------------
Earnings (loss) per common share:
    Income (loss) before extraordinary item ...      $       .27    $     (1.11)   $    (13.26)
    Extraordinary item ........................             (.07)             -              -
                                                     ------------   ------------   ------------
  Net income (loss) per common share ............    $       .20    $     (1.11)   $    (13.26)
                                                     ============   ============   ============

Earnings (loss) per common share - assuming dilution:
    Income (loss) before extraordinary item ...      $       .23    $     (1.11)   $    (13.26)
    Extraordinary item ........................             (.06)             -              -
                                                     ------------   ------------   ------------
Net income (loss) per common share - assuming        
    dilution                                         $       .17    $     (1.11)   $    (13.26)
                                                     ============   ============   ============    
</TABLE>


                             See accompanying notes


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


                                ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                           CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT)
                                      (In thousands except share amounts)


                                                                                                             Accumulated
                              Convertible                                                                       Other
                            Preferred Stock      Common Stock     Treasury Stock    Additional              Comprehensive
                          ---------------------------------------------------------  Paid-In    Accumulated     Income
                          Shares    Amount     Shares   Amount   Shares   Amount     Caprtal       Deficit      (Loss)       Total 
                          --------------------------------------------------------------------  ------------------------------------

<S>                        <C>      <C>       <C>       <C>     <C>     <C>        <C>           <C>         <C>          <C>      
Balance at December 31,    45,741   $   -     5,799,762 $  58   2,571   $    (1)   $  50,914     $ (13,664)  $  (244)     $  37,063
  1995 .................
  Comprehensive income
    (loss):
    Net income .........        -       -         -         -       -         -            -         1,513         -          1,513
    Other comprehensive
      income:
      Change in
        unrealized
        holding loss on         -       -         -         -       -         -            -             -       244            244
        securities .....
      Foreign currency
        translation             -       -         -         -       -         -            -             -    (2,406)        (2,406)
        adjustment .....
                          ----------------------------------------------------------------------------------------------------------
  Comprehensive income          -       -         -         -       -         -            -         1,513    (2,162)          (649)
    (loss)
  Issuance of common
    stock for                   -       -         5,050        (2,500)        1           41             -         -             42
    compensation .......        -       -         -
  Expenses paid related
    to private                  -       -         -         -       -         -          (42)            -         -            (42)
    placement offering .
  Options exercised ....        -       -         2,000     -       -         -           13             -         -             13
  Treasury stock                -       -         -         -  74,640      (405)           -             -         -           (405)
    purchased ..........
  Dividend on preferred         -       -         -         -       -         -            -          (366)        -           (366)
    stock ..............
                          ----------------------------------------------------------------------------------------------------------
Balance at December 31,
  1996 .................   45,471       -     5,806,812    58  74,711      (405)      50,926       (12,517)    (2,406)       35,656 
  Comprehensive income
    (loss):
    Net loss ...........        -       -         -         -       -         -            -        (6,485)         -        (6,485)
    Other comprehensive
      income:
      Foreign currency
        translation             -       -         -         -       -         -            -             -     (2,496)       (2,496)
        adjustment .....
                          ----------------------------------------------------------------------------------------------------------
  Comprehensive income          -       -         -         -       -         -            -        (6,485)    (2,496)       (8,981)
    (loss)
  Issuance of common
    stock for                   -       -         7,735     - (21,688)      124          186             -          -           310
    compensation .......                                                                        
  Conversion of
    preferred stock       (45,741)      -       508,183     5       -         -           (5)            -          -             -
    into common stock ..
  Options exercised ....        -       -         2,000     -       -         -           11             -          -            11
  Dividend on preferred         -       -         -         -       -         -            -          (183)         -          (183)
    stock ..............
  Warrants exercised ...        -       -        97,810     -       -         -            -            -           -             -
                          ----------------------------------------------------------------------------------------------------------
Balance at December 31,  
  1997 .................        -   $   _     6,422,540  $ 63  53,023  $   (281)   $   51,118     $(19,185)  $ (4,902)    $  26,813

</TABLE>


                                      F-6
<PAGE>

<TABLE>
<CAPTION>


                                ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                 CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (DEFICIT) (continued)
                                     (In thousands except share amounts)


 
                                                                                                             Accumulated
                              Convertible                                                                       Other
                            Preferred Stock      Common Stock     Treasury Stock    Additional              Comprehensive
                          ---------------------------------------------------------  Paid-In    Accumulated     Income
                          Shares    Amount     Shares   Amount   Shares   Amount     Caprtal       Deficit      (Loss)       Total 
                          --------------------------------------------------------------------  ------------------------------------
Balance at December 31,
<S>                           <C>   <C>       <C>        <C>    <C>    <C>           <C>         <C>         <C>          <C>      
  1997 .................        -   $      _  6,422,540  $ 63   53,023 $   (281)     $ 51,118    $ (19,185)  $ (4,902)    $  26,813
  Comprehensive income
    (loss):
    Net loss ...........        -          -          -     -        -        -             -      (83,960)         -       (83,960)
    Other comprehensive
      income:
      Foreign currency
        translation                                                                                            (6,067)       (6,067)
        adjustment .....        -          -          -     -        -        -             -            -             -       
                                                                                                                           ---------
  Comprehensive income                                                                                                      
    (loss):                                                                                                                 (90,027)
  Issuance of common
    stock for  
    compensation .......       -           -     4,838      -    (18,263)    94            114           -          -           207
  Purchase of treasury
    stock ..............       -           -         -      -    136,255   (980)             -           -          -          (980)
  Options exercised ....       -           -     3,000      -          -      -             16           -          -            16
  Issuance of common
    stock for
    acquisition of oil           
    and gas properties .       -           -    71,063        2        -      -            447           -          -           449
                          ==========================================================================================================
Balance at December 31,
  1998 .................       -    $      - 6,501,441       65  171,015  $ (1,167)  $  51,695   $(103,145)  $(10,970)    $ (63,522)
                          ==========================================================================================================

 </TABLE>
                                                     
                            See accompanying notes.


                                      F-7
<PAGE>


<TABLE>
<CAPTION>
                                                    ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES
   
                                                        CONSOLIDATED STATEMENTS OF CASH FLOWS
                                                                      

                                                                  Year Ended December 31
                                                 ----------------------------------------------------------
                                                       1996                1997                1998
                                                 ------------------  ------------------ -------------------
                                                                      (In thousands)

<S>                                                 <C>                 <C>                <C>           
Operating Activities
Net income (loss) ........................          $       1,513       $      (6,485)     $     (83,960)
Adjustments to reconcile net income
   (loss) to net cash provided by
   operating activities:
     Minority interest in income of
       foreign subsidiary ................                     70                 335                  4
     Depreciation, depletion, and
       amortization ......................                  9,605              30,581             31,226
     Proved property impairment ..........                      -               4,600             61,224
     Deferred income tax benefit..........                      -              (4,135)            (4,389)
     Amortization of deferred financing
       fees...............................                    280               1,260              1,571
     Issuance of common stock for
       compensation ......................                     42                 310                207
     Loss on marketable securities .......                    235                   -                  -
     Net loss from debt restructurings ...                    427                   -                  -
     Changes in operating assets and
       liabilities:
         Accounts receivable .............                 (6,013)               (444)             4,739
         Equipment inventory .............                    (82)                 76               (137)
         Other assets ....................                   (133)               (325)              (468)
         Accounts payable and accrued
           expenses ......................                  7,009              10,402             (5,770)
         Oil and gas production payable ..                    591                 466                598
                                                 ------------------  ------------------ -------------------
Net cash provided by operating activities                  13,544              36,641              4,845

Investing Activities
Capital expenditures, including purchases
   and development of properties .........                (87,793)            (84,111)           (57,412)
Payment for purchase of CGGS,
   net of cash acquired ..................                (85,362)                  -                  -
Proceeds from sale of oil and gas
   properties and equipment inventory ....                    242               9,606             59,389
Proceeds from sale of marketable
   securities ............................                    335                   -                  -
                                                 ------------------  ------------------ -------------------            
Net cash (used) provided by investing
   activities ............................               (172,578)            (74,505)             1,977


</TABLE>



                                      F-8
<PAGE>


<TABLE>
<CAPTION>

                                                       Abraxas Petroleum Corporation and Subsidiaries

                                                      Consolidated Statements of Cash Flows (continued)
                                                                      

                                                                  Year Ended December 31
                                                 ----------------------------------------------------------
                                                       1996                1997                1998
                                                 ------------------  ------------------  ------------------
                                                                      (In thousands)

<S>                                                 <C>                 <C>                <C>          
Financing Activities
Preferred stock dividends ..................        $        (366)      $        (183)     $           -
Issuance of common stock, net of expenses                     (29)                 11              3,926
Purchase of treasury stock, net ............                 (405)                  -               (979)
Proceeds from long-term borrowings .........              305,400              33,620             83,691
Payments on long-term borrowings ...........             (131,969)                  -            (32,433)
Deferred financing fees ....................               (9,688)               (123)            (1,688)
Other ......................................                   87                   -                  -
                                                 ------------------  ------------------ -------------------
Net cash provided by financing activities ..              163,030              33,325             52,517
                                                 ------------------  ------------------ -------------------
Increase (decrease) in cash ................                3,996              (4,539)            59,339
                                                 ------------------  ------------------ -------------------
Effect of exchange rate changes on cash ....                    -              (1,005)              (825)
                                                 ------------------  ------------------ -------------------                        
Increase (decrease) in cash ................                3,996              (5,544)            58,514
Cash at beginning of year ..................                4,384               8,380              2,876
                                                 ------------------  ------------------ -------------------                       
Cash at end of year.........................        $       8,380       $       2,836      $      61,390
                                                 ==================  ================== ===================

Supplemental Disclosures
Supplemental disclosures of cash flow
   information:
     Interest paid .........................        $       3,863       $      24,170      $      30,362
                                                 ==================  ================== ===================


Supplemental schedule of noncash investing and financing activities:
     During  1996,  the  Company  purchased  all of the  capital  stock  of CGGS
       Canadian  Gas  Gathering  Systems,  Inc.  for  $85,362,000,  net of  cash
       acquired.  In conjunction with the acquisition,  liabilities assumed were
       as follows (in thousands):
         Fair value of assets acquired ...............................................     $     123,970
         Cash paid for the capital stock .............................................           (85,362)
                                                                                        -------------------
         Liabilities assumed .........................................................     $      38,608
                                                                                        ===================
</TABLE>

                                   See accompanying notes.


                                      F-9
<PAGE>

                        ABRAXAS PETROLEUM CORPORATION AND SUBSIDIARIES

                          NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                              December 31, 1996, 1997, and 1998


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,  in the Permian Basin of western Texas,  and in Canada and the processing
of natural  gas  primarily  in Canada.  The  consolidated  financial  statements
include  the  accounts  of the Company  and its  subsidiaries.  All  significant
intercompany accounts and transactions have been eliminated in consolidation.

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.  Management
believes that it is reasonably  possible that  estimates of proved crude oil and
natural gas revenues could significantly change in the future.

Concentration of Credit Risk

        Financial  instruments  which  potentially  expose the Company to credit
risk consist  principally of trade receivables,  interest rate and crude oil and
natural  gas price swap  agreements.  Accounts  receivable  are  generally  from
companies  with  significant  oil  and gas  marketing  activities.  The  Company
performs ongoing credit evaluations and, generally,  requires no collateral from
its customers.

Equipment Inventory

        Equipment  inventory   principally  consists  of  casing,   tubing,  and
compression equipment 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
of properties and successful as well as unsuccessful exploration and development
activities  are  capitalized.  The Company does not capitalize  internal  costs.
Depreciation,  depletion,  and amortization  (DD&A) of capitalized crude oil and
natural  gas  properties  and  estimated  future  development  costs,  excluding
unevaluated,  unproved properties,  are based on the  unit-of-production  method
based on proved  reserves.  Net  capitalized  costs of crude oil and natural gas
properties,  less related deferred taxes, are limited,  by country, to the lower
of unamortized cost or the cost ceiling, defined as the sum of the present value
of  estimated  future net revenues  from proved  reserves  based on  unescalated
discounted at 10 percent,  plus the cost of properties not being  amortized,  if
any,  plus the lower of cost or  estimated  fair  value of  unproved  properties
included in the costs being amortized, if any, less related income taxes. Excess
costs are  charged to proved  property  impairment  expense.  No gain or loss is
recognized  upon sale or  disposition  of crude oil and natural gas  properties,
except in unusual circumstances.



                                      F-10
<PAGE>

        Unevaluated properties not currently being amortized included in oil and
gas properties  were  approximately  $11,519,000 and $10,675,000 at December 31,
1997 and 1998,  respectively.  The  properties  represented  by these costs were
undergoing exploration activities or are properties on which the Company intends
to commence  activities in the future. The Company believes that the unevaluated
properties  at  December  31,  1998 will be  substantially  evaluated  in six to
thirty-six months and it will begin to amortize these costs at such time.

Other Property and Equipment

        Other  property  and  equipment  are  recorded  on the  basis  of  cost.
Depreciation  of gas gathering and processing  facilities and other property and
equipment is provided  over the 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.

Hedging

        The  Company  periodically  enters into  contracts  to hedge the risk of
future crude oil and natural gas price  fluctuations.  Such contracts may either
fix or  support  crude oil and  natural  gas prices or limit the impact of price
fluctuations  with respect to the Company's  sales of crude oil and natural gas.
Gains and  losses  on such  hedging  activities  are  recognized  in oil and gas
production revenues when hedged production is sold.

Stock-Based Compensation

        Statement of Financial  Accounting  Standards No. 123,  "Accounting  for
Stock-Based  Compensation,"  ("Statement 123") encourages, but does not require,
companies to record  compensation  cost for  stock-based  employee  compensation
plans at fair  value.  The  Company  has  chosen  to  continue  to  account  for
stock-based   compensation  using  the  intrinsic  value  method  prescribed  in
Accounting  Principles  Board  Opinion No. 25,  "Accounting  for Stock Issued to
Employees,"  and related  interpretations.  Accordingly,  compensation  cost for
stock  options is measured as the excess,  if any, of the quoted market price of
the  Company's  stock at the date of the grant over the amount an employee  must
pay to acquire the stock.

Foreign Currency Translation

        The  functional  currency for the Company's  Canadian  operations is the
Canadian  dollar.  The Company  translates  the  functional  currency  into U.S.
dollars  based on the  current  exchange  rate at the end of the  period for the
balance  sheet and a weighted  average  rate for the period on the  statement of
operations.   Translation   adjustments  are  reflected  as  Accumulated   Other
Comprehensive Income (Loss) in Stockholders' Equity (Deficit).

Fair Value of Financial Instruments

        The Company includes fair value information in the notes to consolidated
financial  statements  when  the  fair  value of its  financial  instruments  is
materially  different from the book value. The Company assumes the book value of
those financial  instruments  that are classified as current  approximates  fair
value  because  of the  short  maturity  of these  instruments.  For  noncurrent
financial  instruments,  the Company uses quoted market prices or, to the extent
that there are no available  quoted  market  prices,  market  prices for similar
instruments.

Restoration, Removal and Environmental Liabilities

        The  estimated  costs of  restoration  and  removal of major  processing
facilities are accrued on a  straight-line  basis over the life of the property.
The estimated future costs for known environmental  remediation requirements are
accrued when it is probable that a liability has been incurred and the amount of


                                      F-11
<PAGE>

remediation   costs  can  be  reasonably   estimated.   These  amounts  are  the
undiscounted,  future estimated costs under existing regulatory requirements and
using existing technology.


Revenue Recognition

        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 net of royalties. Revenue from the processing of natural gas is recognized
in the period the service is performed.

Deferred Financing Fees

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

Federal Income Taxes

        The Company records income taxes 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.

Reclassifications

        Certain   balances  for  1996  and  1997  have  been   reclassified  for
comparative purposes.

2.  Liquidity

        The  Company's  operating  results have been  adversely  effected by the
 decline in prices of crude oil and natural gas during 1998.  In  addition,  the
 Company has significant  interest payments due on its Series D Notes in May and
 November  1999. As a result of these  conditions,  the Company has issued $63.5
 million of debt securities  ("Senior  Notes") in March,  1999. These securities
 are secured by  substantially  all of the  Company's  crude oil and natural gas
 properties  and natural gas  processing  facilities and the shares of Grey Wolf
 owned by the Company and bear  interest at 12.875%,  payable  semi-annually  on
 March 15 and September 15, commencing September 15, 1999. The Senior Notes will
 mature in 2003.  Proceeds  from the Senior  Notes  will be used to pay-off  the
 Company's existing Credit Facility,  pay-off  approximately $10 million of debt
 assumed in connection  with the Company's  acquisition  of New Cache in January
 1999 with the remainder being used for general corporate purposes.

        The Company has  implemented  a number of measures to conserve  its cash
resources,  including  postponement  of exploration  and  development  projects.
However, while these measures will help conserve the Company's cash resources in
the near term,  they will also limit the  Company's  ability  to  replenish  its
depleting  reserves,  which could negatively impact the Company's operating cash
flow and results of operations in the future.

3.  Acquisitions and Divestitures

Pacalta Properties Acquisition

        In October 1997,  Canadian Abraxas Petroleum Limited (Canadian Abraxas),
a wholly owned subsidiary of the Company, and Grey Wolf Exploration,  Inc. (Grey
Wolf) completed the acquisition of the Canadian assets of Pacalta Resources Ltd.
(Pacalta  Properties) for approximately  $14,000,000  (CDN$20,000,000)  and four
million Grey Wolf special warrants valued at approximately $1,375,000.  Canadian
Abraxas acquired an approximate 92% interest in the Pacalta Properties, and Grey
Wolf acquired an  approximate  8% interest.  In July 1998 Grey Wolf acquired the
remaining interest in the Pacalta Properties from Canadian Abraxas.

                                      F-12
<PAGE>
        The acquisition was accounted for as a purchase,  and the purchase price
was  allocated  to the crude oil and  natural gas  properties  based on the fair
values of the  properties  acquired.  The  transaction  was financed  through an
advance from the Company with funds which were obtained through borrowings under
the Company's Credit Facility. Results of operations from the Pacalta Properties
have been included in the consolidated financial statements since October 1997.

CGGS Acquisition

        In November  1996,  the Company,  through its wholly  owned  subsidiary,
Canadian  Abraxas  purchased  100%  of the  outstanding  capital  stock  of CGGS
Canadian Gas Gathering Systems Inc. (CGGS) for approximately $85,500,000, net of
the CGGS cash acquired and including  transaction costs. CGGS owns producing oil
and gas  properties in western  Canada and adjacent gas gathering and processing
facilities as well as undeveloped  leasehold  properties.  Immediately after the
purchase,  CGGS was merged with and into Canadian  Abraxas.  The acquisition was
accounted  for as a purchase and the purchase  price was allocated to the assets
and liabilities based on estimated fair values.  The transaction was financed by
a portion of the proceeds  from the offering of  $215,000,000  of Senior  Notes.
Results  of  operations  from  Canadian   Abraxas  have  been  included  in  the
consolidated financial statements since November 1996.

Wyoming Properties Acquisition and Divestiture

        In September 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. for
$47,500,000.  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  through
borrowings under the Company's bridge facility referred to in Note 4. Results of
operations from the Wyoming  Properties  have been included in the  consolidated
financial statements since September 1996.

        In  November  1998,  the  Company  sold  its  interest  in  the  Wyoming
Properties  to  Abraxas   Wamsutter  L.P.  a  Texas  limited   partnership  (the
"Partnership")  for approximately  $58.6 million and a minority equity ownership
in the  Partnership.  A subsidiary of the Company,  Wamsutter  Holdings,  Inc. a
Wyoming corporation,  (the "General Partner"),  will initially own a one percent
interest and act as General  Partner of the  Partnership.  After certain payback
requirements  are  satisfied,  the  Company's  interest  will  increase  to  35%
initially and could  increase to as high as 65%. The Company will also receive a
management fee and reimbursement of certain overhead costs from the Partnership.

Portilla and Happy Fields Acquisition

        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 Portilla and Happy  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),  was 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.

        In November  1996,  the  Company  closed an  agreement  with the Limited
Partner and certain  noteholders  (Noteholders) of the Partnership,  pursuant to
which the Company obtained 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  paid to the Limited


                                      F-13
<PAGE>
Partner and the Noteholders  was $6,961,000.  The Company also paid off the Bank
Loan which had an outstanding  principal  balance of approximately  $20,051,000,
and assumed a crude oil and natural gas price swap agreement.

        As  a  result  of  obtaining  the  Limited  Partner's  interest  in  the
Partnership,  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 has included in its balance
sheet the amount  previously  removed from oil and gas  properties in 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.  The  purchase  was  financed  by a portion of the
proceeds from the offering of the Senior Notes.  The Company  recorded its share
of the net loss of the Partnership from March 1996 to November 1996 of $513,000.
The Company also assumed and wrote off the remaining deferred financing fees and
organization costs of the Partnership. Gross revenues and expenses from both the
Company's  original  interest in the  Portilla  and Happy  Fields as well as the
interest in the Portilla  Field  previously  owned by the Pension Fund have been
included in the consolidated financial statements since November 1996.

Grey Wolf Acquisition

        In January 1996,  the Company made a $3,000,000  investment 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,
Canada corporation whose common shares are traded on The Alberta Stock Exchange.
The  acquisition  was  accounted  for as a purchase and the  purchase  price was
allocated to the assets and  liabilities  based on the fair  values.  Results of
operations  of  Cascade  have  been  included  in  the  consolidated   financial
statements since January 1996. During 1997,  Cascade acquired 100% of the common
stock of Grey Wolf in exchange for the  issuance of  additional  Cascade  common
shares to the Grey Wolf  shareholders  and the cancellation of the common shares
of Cascade held by Grey Wolf. This  transaction  resulted in the share ownership
of  Cascade  previously  held  by  Grey  Wolf  being  passed  to the  Grey  Wolf
shareholders, and Grey Wolf was merged into Cascade.

East White Point and Stedman Island Fields Acquisition

        In November 1996,  the Company  obtained a release of the 50% overriding
royalty interest in the East White Point Field in San Patricia County, Texas and
the Stedman  Island  Field in Nueces  County,  Texas from the  Pension  Fund for
$9,271,000  before  adjustment  for  accrual  of net  revenue  to  closing.  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 through proceeds of the sale
of the Senior Notes.  Results of  operatioins  from these  properties  have been
included in the  consolidated  financial  statements since November 1, 1996. The
Company recorded the net purchase price of  approximately  $9,271,000 to its oil
and gas properties.

4.  Property and Equipment

        The major components of property and equipment, at cost, are as follows:

                                               Estimated
                                              Useful Life    1997       1998
                                              ----------- ---------- ----------
                                                 Years       (In thousands)

    Land, buildings, and improvements ......        15    $     291   $     309
    Crude oil and natural gas properties ...         -      344,199     335,207
    Natural gas processing plants ..........        18       39,113      36,583
    Equipment and other ....................         7        1,839       2,217
                                                          ---------- -----------
                                                          $ 385,442   $ 374,316
                                                          ========== ===========

                                      F-14
<PAGE>

                                                            
5.  Long-Term Debt

        Long-term debt consists of the following:
<TABLE>
<CAPTION>

                                                                    December 31
                                                                1997          1998
                                                            ------------- --------------
                                                                    (In thousands)


    <S>                                                        <C>            <C>      
    11.5% Senior Notes due 2004, Series B (see below)...       $  215,000     $ 274,000
    Unamortized premium on Senior Notes.................               -          3,471
    Credit facility due to Bankers Trust Company, ING
      Capital and Union Bank of California (see below)..           31,500        15,700
    Credit facility due to a Canadian bank,
      providing for borrowings to approximately
      $11,630,000 at the bank's prime rate plus                   
      .125%, 6.20% at December 31, 1998.................            2,096         6,515
    Other ..............................................               21            12
                                                            ------------- --------------
                                                                  248,617       299,698
    Less current maturities .........................                 -             -
                                                            ------------- --------------
                                                              $   248,617     $ 299,698
                                                            ============= ==============
</TABLE>

        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  (Notes).  In January  1997,  the Notes were  exchanged for Series B Notes,
which have been  registered  under the  Securities Act of 1933 (Series B Notes).
The form and terms of the  Series B Notes  are the same as the  Notes  issued on
November 14, 1996. Interest at 11.5% is payable  semi-annually in arrears on May
1 and November 1 of each year, commencing on May 1, 1997. The Series B Notes are
general unsecured  obligations of the Company and Canadian Abraxas and rank pari
passu in right of payment to all future subordinated indebtedness of the Company
and Canadian Abraxas. The Series B Notes are, however,  effectively subordinated
in right of  payment to all  existing  and future  secured  indebtedness  to the
extent of the value of the assets  securing such  indebtedness.  The Company and
Canadian  Abraxas  are joint and  several  obligors  on the Series B Notes.  The
Series B Notes are redeemable, in whole or in part, at the option of the Company
and Canadian  Abraxas on or after November 1, 2000, at the  redemption  price of
105.75% through  October 31, 2001,  102.87% through October 31, 2002 and 100.00%
thereafter plus accrued interest. In addition,  any time on or prior to November
1, 1999, the Company and Canadian  Abraxas may redeem up to 35% of the aggregate
principal amount of the Series B Notes originally  issued with the cash proceeds
of one or more equity offerings at a redemption price of 111.5% of the aggregate
principal  amount of the Series B Notes to be redeemed  plus  accrued  interest,
provided,  however,  that  after  giving  effect  to such  redemption,  at least
$139,750,000  aggregate principal amount of Series B Notes remains  outstanding.
The Series B Notes were issued  under the terms of an Indenture  dated  November
14, 1996 that contains,  among others,  certain  covenants which generally limit
the ability of the Company to incur additional  indebtedness other than specific
indebtedness  permitted  under the  Indenture,  including  the  Credit  Facility
discussed below,  provided  however,  if no event of default is continuing,  the
Company  may  incur  indebtedness  if  after  giving  pro  forma  effect  to the
incurrence  of  such  debt  both  the  Company's  consolidated  earnings  before
interest,  taxes,  depletion and amortization  (EBITDA)  coverage ratio would be
greater than 2.25 to 1.0 if prior to November 1, 1997, and at least equal to 2.5
to 1.0 thereafter,  and the Company's adjusted consolidated net tangible assets,
as defined, are greater than 150% of the aggregate consolidated  indebtedness of
the Company or the  Company's  adjusted  consolidated  net  tangible  assets are
greater than 200% of the aggregate consolidated indebtedness of the Company. The
Indenture also contains other covenants  affecting the Company's  ability to pay
dividends on its common stock, sell assets and incur liens.

                                      F-15
<PAGE>
        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  and  borrowed  $85,000,000
which was used to repay all amounts due under its previous credit  agreement and
to finance the purchase of the Wyoming Properties.

        On November 14, 1996, the Company repaid all amounts  outstanding  under
the bridge  facility with proceeds  from the offering of  $215,000,000  of Notes
described  above and  entered  into an amended  and  restated  credit  agreement
(Credit Facility) with the Lenders and Union Bank of California.  On October 14,
1997, the Company amended the Credit Facility to provide for a revolving line of
credit  with  an  availability  of  $40,000,000,  subject  to a  borrowing  base
condition.  At December  31, 1997 and 1998,  $31,500,000  and  $15,700,000  were
outstanding under the Credit Facility.

        Commitments available under the 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. Amounts due under
the Credit  Facility will be secured by the Company's oil and gas properties and
plants.  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 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 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
Credit  Facility is based on a facility usage grid. If the borrowings  under the
Credit Facility represent an amount less than or equal to 33.3% of the available
borrowing  base,  then the applicable  interest rate charged on the  outstanding
balance  will be either (a) an adjusted  rate of the London  Inter-Bank  Offered
Rate  ("LIBOR") plus 1.25% or (b) the prime rate of the agent (which is based on
the agent's published prime rate) plus 0.50%. If the borrowings under the 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 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  interest  rate at
December 31, 1998 was 6.57%.

        The 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 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
Company is obligated to pay the Lenders on a quarterly basis a commitment fee of
0.50% per annum on the average  unused  portion of the commitment in effect from
time to  time.  The  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.  As of December 31,
1998,  the Company  was not in  compliance  with the EBITDA to interest  expense
ratio requirement under the Credit Facility. This Credit Facility,  however, was
fully  redeemed with proceeds from the Company's  issuance of the Senior Secured
Notes on March 26, 1999 as discussed in Note 2. Should crude oil prices continue


                                      F-16
<PAGE>
to decline,  a further write-down of the Company's oil and gas properties may be
required (see Note 16).

        In January 1998, the Company and Canadian Abraxas  completed the sale of
$60,000,000  aggregate principal amount of 11.5% Senior Notes due 2004, Series C
(Series C Notes).  The Series C Notes are general  unsecured  obligations of the
Company and  Canadian  Abraxas and rank pari passu in right to all  existing and
future  indebtedness of the Company and Canadian  Abraxas and on parity with the
Series B Notes  and  senior  in  right of  payment  to all  future  subordinated
indebtedness  of the Company and  Canadian  Abraxas.  The Series C Senior  Notes
carry similar redemption provisions to the Series B Notes and are subject to the
terms of the Indenture dated January 27, 1998 which is substantially  similar to
the  Indenture  governing the Series B Notes.  The Company and Canadian  Abraxas
sold the Series C Notes at a premium of $4,050,000  which will be amortized over
the life of the Series C Notes  resulting  in an  effective  rate of interest of
10.5%.  The  net  proceeds,  after  deducting  estimated  offering  costs,  were
$62,750,000,  $33,400,000  of which was used to repay  outstanding  indebtedness
under the Credit Facility,  except for $100,000 which remained  outstanding with
the remainder used for general corporate purposes.

        The Company's principal source of funds to meet debt service and capital
requirements  is net  cash  flow  provided  by  operating  activities,  which is
sensitive to the prices the Company  receives for its crude oil and natural gas.
The Company  periodically enters into hedge agreements to reduce its exposure to
price risk in the spot market for natural gas. However, a substantial portion of
the Company's  production will remain subject to such price risk.  Additionally,
significant capital expenditures are required for drilling and development,  and
other equipment additions.  The Company believes that cash provided by operating
activities and other financing  sources,  including,  if necessary,  the sale of
certain assets and additional  long-term debt, will provide  adequate  liquidity
for the Company's operations, including its capital expenditure program, for the
next twelve months. No assurance,  however, can be given that the Company's cash
flow from  operating  activities  will be  sufficient  to meet  planned  capital
expenditures  and debt  service in the  future.  Should the Company be unable to
generate sufficient cash flow from operating  activities to meet its obligations
and make planned  capital  expenditures,  the Company  could be forced to reduce
such  expenditures,  sell assets or 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.

        During 1996, 1997 and 1998, the Company capitalized  $465,000,  $966,000
and $414,000 of interest expense, respectively.

        The  fair  value  of the  Notes  was  approximately  $212,350,000  as of
December 31, 1998. The fair values of the credit  facilities  approximate  their
carrying  values  as  of  December  31,  1998.  The  Company  has  approximately
$1,980,000 of standby letters of credit and a $30,000  performance  bond open at
December 31, 1998.  Approximately  $30,000 of cash is  restricted  and in escrow
related to certain of the letters of credit and bond.

6.  Stockholders' Equity

Common Stock

        In 1994, the Board of Directors adopted a Stockholders'  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


                                      F-17
<PAGE>
specified  period of time after a tender or  exchange  offer.  The  Rights  will
expire in November 2004, unless earlier exchanged or redeemed.

Treasury Stock

        In March 1996,  the Board of  Directors  authorized  the purchase in the
open market of up to 500,000 shares of the Company's  outstanding  common stock,
the aggregate  purchase  price not to exceed  $3,500,000.  During the year ended
December 31, 1998 the Company  purchased 136,255 shares of its common stock at a
cost of $980,000, which were recorded as treasury stock.

7.  Stock Option Plans and Warrants

Stock Options

        The Company grants options to its officers, directors, and key employees
under various stock option and incentive plans.

        The Company's  various stock option plans have  authorized  the grant of
options to management personnel and directors for up to approximately  1,395,000
shares of the Company's  common stock.  All options  granted have ten year terms
and vest and become fully  exercisable  over four years of continued  service at
25% on each anniversary date. At December 31, 1998 approximately 279,000 options
remain available for grant.

        Pro forma  information  regarding net income (loss) and earnings  (loss)
per share is required by Statement 123, which also requires that the information
be determined  as if the Company has  accounted  for its employee  stock options
granted  subsequent  to December  31,  1994 under the fair value  method of that
Statement.  The fair value for these  options was estimated at the date of grant
using a Black-Scholes  option pricing model with the following  weighted-average
assumptions for 1996, 1997, and 1998, respectively:  risk-free interest rates of
6.25%,  6.25% and  6.25%,  respectively;  dividend  yields  of -0-%;  volatility
factors of the expected market price of the Company's common stock of .383, .529
and .667,  respectively;  and a weighted-average  expected life of the option of
six years.

        The  Black-Scholes  option  valuation  model  was  developed  for use in
estimating the fair value of traded  options which have no vesting  restrictions
and are fully  transferable.  In addition,  option  valuation models require the
input of highly  subjective  assumptions  including  the  expected  stock  price
volatility.  Because the Company's  employee stock options have  characteristics
significantly different from those of traded options, and because changes in the
subjective input assumptions can materially  affect the fair value estimate,  in
management's  opinion, the existing models do not necessarily provide a reliable
single measure of the fair value of its employee stock options.

        For purposes of pro forma  disclosures,  the estimated fair value of the
options is amortized to expense over the options' vesting period.  The Company's
pro forma information follows (in thousands except for earnings (loss) per share
information):

                                                    1996       1997      1998
                                                 -------------------------------
                                                         (In thousands)

    Pro forma net income (loss) ................   $ 1,250   $(7,325)  $(85,619)
    Pro forma net income (loss) per common share   $   .15   $ (1.25)  $ (13.52)
    Pro forma net income (loss) per common share
      - assuming dilution ......................   $   .13   $ (1.25)  $ (13.52)



                                      F-18
<PAGE>
        A  summary  of  the  Company's  stock  option   activity,   and  related
information for the years ended December 31, follows:
<TABLE>
<CAPTION>

                                1996                     1997                     1998
                      -------------------------------------------------- ------------------------
                               Weighted-Average         Weighted-Average          Weighted-Average
                      Options  Exercise Price  Options     Exercise      Options  Exercise Price
                      (000s)                    (000s)     Price(1)      (000s)
                      -------- ----------------------------------------- -------- ---------------

<S>                       <C>       <C>            <C>       <C>             <C>       <C>   
Outstanding-beginning
  of year ............    219       $ 6.71 (1)     551       $ 6.63          834       $ 8.27
Granted ..............    358         6.58         285        11.26          792         7.37
Exercised ............     (2)        6.75          (2)        5.50           (3)        5.33
Forfeited ............    (24)        9.21           -           -           (51)        7.39
                      --------                 ---------                 --------

Outstanding-end of        
  year ...............    551       $ 6.63         834       $ 8.27        1,572       $ 7.33
                      ========                 =========                 ========

Exercisable at end of      
  year ...............     93       $ 6.65         222       $ 6.66          501       $ 6.71
                      ========                 =========                 ========

Weighted-average fair
  value of options
  granted during the                
  year ...............              $ 3.46                   $ 8.00                    $ 5.15

</TABLE>

        Exercise  prices for options  outstanding as of December 31, 1998 ranged
from $5.00 to $8.75 The  weighted-average  remaining  contractual  life of those
options is 8.9 years.

(1) In March 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.  In March 1998,  the Company  amended the exercise price to $7.44 per
    share on all options with an existing exercise price greater than $7.44.

Stock Awards

        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 1996, 1997, and
1998,  the Company made direct  awards of common stock of 1,000  shares,  14,748
shares and 18,263  shares,  respectively,  at  weighted  average  fair values of
$5.00, $10.75 and $5.13 per share, 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 1996, 1997, and 1998, the Company made direct awards of common stock
of 4,050  shares,  7,235  shares and 4,838  shares,  respectively,  at  weighted
average fair values of $6.25, $9.87 and $14.75 per share, respectively.

        During 1996, the Company's  stockholders  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.  During 1996, each of
the seven  eligible  directors  was granted an option to purchase  8,000  common
shares at $6.75.  These options are included in the above table. No options were
granted  during  1997,  during 1998 each of the seven  eligible  directors  were
granted an option to  purchase  2,000  common  shares at $7.44 and 3,000  common
shares at $5.56.  An  additional  option was granted to an eligible  director to
purchase 4,000 common shares at $7.44.

                                      F-19
<PAGE>
Stock Warrants

        In connection with an amendment to one of the Company's  previous credit
agreements,  the Company granted stock warrants to the lender  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.  During  1997,  the lender
exercised  212,000 of its  warrants  on a cashless  basis and was issued  97,810
shares of the Company's common stock.

        Additionally, warrants to purchase 13,500 shares of the Company's common
stock at $7.00 per share remain outstanding from previous grants.

        At December 31, 1998,  the Company has  approximately  5,036,000  shares
reserved for future  issuance for  conversion  of its stock  options,  warrants,
Rights, and incentive plans for the Company's directors and employees.

8.  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
                                                    -----------------------
                                                       1997        1998
                                                    ----------- -----------
                                                        (In thousands)
    Deferred tax liabilities:
      U.S. full cost pool .......................... $  3,444    $     --
      Canadian full cost pool ......................   27,684      19,753
      State taxes ..................................       67          67
      Other ........................................      103          14
                                                    ----------- -----------
    Total deferred tax liabilities .................   31,298      19,834
    Deferred tax assets:
      U.S. full cost pool ..........................       --      15,803
      Depletion ....................................      930       1,075
      Net operating losses .........................    8,520      15,841
      Other ........................................       12         117
                                                    ----------- -----------
    Total deferred tax assets ......................    9,462      32,836
    Valuation allowance for deferred tax assets ....   (5,915)    (32,822)
                                                    ----------- -----------
    Net deferred tax assets ........................    3,547          14
                                                    ----------- -----------
    Net deferred tax liabilities ................... $ 27,751    $ 19,820
                                                    =========== ===========

        Significant  components of the provision  (benefit) for income taxes are
as follows:

                                                      1997        1998
                                                   ----------- -----------

    Current:
      Federal ......................................  $     -     $     -
      State ........................................        -           -
      Foreign ......................................      244         231
                                                    ----------- -----------
                                                      $   244     $   231
                                                    =========== ===========

    Deferred:
      Federal ......................................  $     -     $     -
      State ........................................        -           -
      Foreign ......................................   (4,135)     (4,389)
                                                    ----------- -----------
                                                      $(4,135)    $(4,389)
                                                    =========== ===========


                                      F-20
<PAGE>

        At December  31,  1998,  the  Company  had,  subject to the  limitations
discussed below,  $46,591,000 of net operating loss  carryforwards  for U.S. tax
purposes,  of which it is  estimated  a maximum of  $43,836,000  may be utilized
before it expires.  These loss  carryforwards will expire from 2002 through 2018
if not utilized. At December 31, 1998, the Company had approximately $11,900,000
of net operating loss  carryforwards for Canadian tax purposes of which $200,000
will expire in 2002,  $4,970,000 will expire in 2003,  $3,200,000 will expire in
2004 and $3,530,000 will expire in 2005.

        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 of the Internal  Revenue  Code of 1986,  as amended  (Section  382),
occurred in December 1991. Accordingly,  it is expected that the use of the U.S.
net  operating  loss  carryforwards  generated  prior to  December  31,  1991 of
$4,909,000 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 $837,000
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 U.S. net operating  loss  carryforwards  generated  through  October 1993
(including those subject to the 1991 and 1992 ownership changes discussed above)
of $8,875,000 will be limited to approximately  $1,034,000 per year,  subject to
the lower  limitations  described  above.  Of the  $8,875,000 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  $6,120,000.  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 $5,915,000  and  $32,822,000  for deferred tax assets at
December 31, 1997 and 1998, 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
                                   ---------------------------------------
                                       1996        1997         1998
                                   ----------- ------------ --------------
                                                   (In thousands)

    Tax (expense) benefit at
      U.S. statutory rates (34%)..  $   (743)   $   3,414    $    29,958
    (Increase) decrease in
      deferred tax asset                  
      valuation allowance ........        (1)        (259)       (26,907)
    Higher effective rate of
      foreign operations .........       (49)        (244)          (231)
    Percentage depletion .........       189          499            146
    Other ........................       428          481          1,192
                                   ----------- ------------ --------------
                                    $   (176)   $   3,891    $     4,158
                                   =========== ============ ==============



                                      F-21
<PAGE>

9.      Related Party Transactions

        Accounts   receivable  from  affiliates,   officers,   and  stockholders
represent amounts  receivable  relating to joint interest billings on properties
which the Company operates and advances made to officers.

        In January  1996,  Grey Wolf  purchased  newly issued  shares of Cascade
representing 66 2/3% of Cascade's capital stock. As described in Note 3, in 1997
Grey Wolf merged with Cascade and the name was changed to Grey Wolf Exploration,
Inc. ("Grey Wolf"). At December 31, 1998, the Company owns  approximately 48% of
Grey Wolf.  The Company's  President as well as certain  directors  directly own
approximately 5% of Grey Wolf. Additionally the Company's President owns options
to purchase up to 800,000 shares of Grey Wolf capital stock at an exercise price
of CDN$.20 per share,  and  certain of the  Company's  directors  own options to
purchase in the  aggregate up to 1,000,000  shares of Grey Wolf capital stock at
an exercise price of CDN$.20 per share.  Grey Wolf  currently has  approximately
127,000,000 shares of capital stock outstanding.

        Grey  Wolf  owns a 10%  interest  in the  Canadian  Abraxas  oil and gas
properties and the Canadian  Abraxas gas processing  plants acquired by Canadian
Abraxas in November 1996 from CGGS and a 100% interest in the Pacalta Properties
and  manages  the  operations  of Canadian  Abraxas,  pursuant  to a  management
agreement   between  Canadian  Abraxas  and  Grey  Wolf.  Under  the  management
agreement,  Canadian  Abraxas  reimburses  Grey  Wolf  for  reasonable  costs or
expenses attributable to Canadian Abraxas and for administrative  expenses based
upon the  percentage  that  Canadian  Abraxas'  gross revenue bears to the total
gross revenue of Canadian Abraxas and Grey Wolf.

10.  Commitments and Contingencies

Operating Leases

        During the years ended  December 31, 1996,  1997,  and 1998, the Company
incurred  rent  expense  of  approximately  $179,000,   $228,000  and  $292,000,
respectively.  Future  minimum  rental  payments  are as follows at December 31,
1998:

    1999 ................................................. $ 299,000
    2000 .................................................   313,000
    2001 .................................................   354,000
    2002 .................................................   247,000
    2003 .................................................   228,000
    Thereafter ...........................................   626,000

Contingencies

        In May 1995,  certain  plaintiffs  filed a lawsuit  against  the Company
alleging negligence and gross negligence,  tortious  interference with contract,
conversion  and waste.  In March 1998, a jury found against the Company,  on May
22,  1998  final  judgement  in the amount of  approximately  $1.3  million  was
entered.  The  Company has filed an appeal.  As of March 4, 1999,  no ruling has
been  made on the  appeal.  Management  believes,  based on the  advice of legal
counsel,  that the plaintiffs'  claims are without merit and that damages should
not be  recoverable  under this  action;  however,  the  ultimate  effect on the
Company's  financial  position and results of operations cannot be determined at
this time. The Company has not established a reserve for this matter at December
31, 1998.

        Additionally,  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,  1998,  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.


                                      F-22
<PAGE>
11.  Earnings per Share
<TABLE>
<CAPTION>

        The  following  table sets forth the  computation  of basic and  diluted
earnings per share:

                                                        1996           1997           1998
                                                    ------------   ------------    ------------

<S>                                                 <C>            <C>             <C>          
Numerator:
  Net income (loss) .............................   $  1,513,000   $ (6,485,000)   $(83,960,000)
  Preferred stock dividends .....................        366,000        183,000            --
                                                    ------------   ------------    ------------
  Numerator for basic earnings per share -
    income (loss) available to common ...........      1,147,000     (6,668,000)    (83,960,000)
    stockholders

  Effect of dilutive securities:
    Preferred stock dividends ...................           --             --              --
                                                    ------------   ------------    ------------

  Numerator for diluted earnings per share -
    income available to common stockholders
    after assumed conversions ...................      1,147,000     (6,668,000)    (83,960,000)

Denominator:
  Denominator for basic earnings per share -
    weighted-average shares .....................      5,757,105      6,025,294       6,331,292

  Effect of dilutive securities:
    Stock options and warrants ..................         24,277           --              --
    Convertible preferred stock .................           --             --              --
    Assumed issuance under the CVR Agreement ....      1,013,060           --              --
                                                    ------------   ------------    ------------
                                                       1,037,337           --              --
                                                    ------------   ------------    ------------

  Dilutive potential common shares
     Denominator for diluted earnings per share -
     adjusted weighted-average shares
     and assumed conversions ....................      6,794,442      6,025,294       6,331,292

  Basic earnings (loss) per share:
    Income (loss) before extraordinary item .....   $        .27   $      (1.11)   $     (13.26)
    Extraordinary item ..........................           (.07)           --              --
                                                    ------------   ------------    ------------                                
                                                    $        .20   $      (1.11)   $     (13.26)
                                                    ============   ============    ============

  Diluted earnings (loss) per share:
    Income (loss) before extraordinary item .....   $        .23    $      (1.11)  $     (13.26)
    Extraordinary item ..........................           (.06)           --              --
                                                    ------------   ------------    ------------                                    
                                                    $        .17    $      (1.11)  $     (13.26)
                                                    ============   ============    ============
</TABLE>

        For the year ended  December  31,  1998 none of the shares  issuable  in
connection  with stock options or warrants are included in diluted  shares.  For
the year ended December 31, 1997, none of the shares issuable in connection with
stock options,  warrants,  or the conversion of preferred  stock are included in
diluted shares.  Inclusion of these shares would be  antidilutive  due to losses
incurred in those  years.  In  addition,  for the year ended  December  31, 1996
shares  issuable in connection  with the conversion of the preferred  stock were
not included in diluted shares because the effect was antidilutive.

        Stock options and warrants to purchase  approximately  875,000 shares of
common  stock at a weighted  average per share  price of $8.36 were  outstanding
during 1996.  Since the exercise price of these warrants and options was greater
than the average  market price of the common  shares,  they were not included in
the computations of diluted earnings per share.  Inclusion of these shares would
be antidilutive.

                                      F-23
<PAGE>

12.  Quarterly Results of Operations (Unaudited)

        Selected  results of operations for each of the fiscal  quarters  during
the years ended December 31, 1997 and 1998 are as follows:
<TABLE>
<CAPTION>

                                    1st           2nd            3rd           4th
                                  Quarter       Quarter        Quarter       Quarter
                               -------------- ------------- ----------------------------
                                        (In thousands, except per share data)
<S>                              <C>            <C>           <C>           <C>     
Year Ended December 31, 1997
  Net revenue ...............    $ 19,216       $ 15,772      $ 15,703      $ 20,240
  Operating income (loss) ...       7,791          4,090         3,902          (633)
  Net income (loss) .........       1,454         (2,010)       (2,042)       (3,887)
  Earnings (loss) per common
    share ...................         .24           (.37)         (.33)        (.61)
  Earnings (loss) per common
    share - assuming                   
    dilution ................         .22           (.37)         (.33)        (.61)
Year Ended December 31, 1998
  Net revenue ...............    $ 16,739       $ 15,471      $ 13,799      $ 14,075
  Operating income (loss) ...       2,423            577          (765)      (58,735)
  Net income (loss) .........      (4,572)        (6,105)       (5,795)      (67,488)
  Earnings (loss) per common
    share ...................         (.72)          (.96)         (.92)      (10.66)
  Earnings (loss) per common
    share - assuming                  
    dilution ................         (.72)          (.96)         (.92)      (10.66)

</TABLE>

        During the fourth quarter of 1997, the Company  recorded a write-down of
its  Canadian  proved  crude oil and natural  gas  properties  of  approximately
$4,600,000  ($3,000,000,  net of taxes).  During the fourth quarter of 1998, the
Company  recorded  a  write-down  of its  United  States  proved  crude  oil and
properties of approximately $61,224,000 under the ceiling limitation.

13.  Benefit Plans

        The  Company  has a defined  contribution  plan  (401(k))  covering  all
eligible  employees of the  Company.  During  1996,  1997,  and 1998 the Company
contributed 2,500, 7,440, and 10,329 shares,  respectively,  of its common stock
held in the  treasury  to the  Plan and  recorded  the  fair  value of  $12,500,
$41,850,  and  $76,847  respectively,  as  compensation  expense.  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 employee contribution is limited to the lesser of 20%
of the employee's annual compensation or $10,000.


                                      F-24
<PAGE>
14. Summary Financial Information of Canadian Abraxas Petroleum Ltd.

        The following is summary financial  information of Canadian  Abraxas,  a
wholly  owned  subsidiary  of the  Company.  Canadian  Abraxas  is  jointly  and
severally liable for the entire balance of the Series B Notes ($215,000,000), of
which  $84,612,000  was  utilized by  Canadian  Abraxas in  connection  with the
acquisition of CGGS. The Company has not presented separate financial statements
and  other  disclosures  concerning  Canadian  Abraxas  because  management  has
determined that such information is not material to the holders of the Notes.

<TABLE>
<CAPTION>

                                                                        December 31,
                                                                    1997            1998
                                                                --------------  -------------
                                                                       (In thousands)
    
   <S>                                                            <C>             <C>     
   BALANCE SHEET
   Assets
 
   Total current assets .......................................    $  4,738        $  6,144
    Oil and gas and processing properties .....................     109,968          91,115
    Other assets ..............................................       3,761           3,854
                                                                ==============  =============
                                                                   $118,467        $101,113
                                                                ==============  =============

    Liabilities and Stockholder's Equity
    Total current liabilities .................................    $  3,625        $  3,030
    11.5% Senior Notes due 2004 ...............................      74,682          74,682
    Notes payable to Abraxas Petroleum Corporation ............      18,844          20,355
    Other liabilities .........................................      30,295          22,519
    Stockholder's equity (deficit) ............................      (8,979)        (19,473)
                                                                --------------  -------------
                                                                   $118,467        $101,113
                                                                ==============  =============
</TABLE>
<TABLE>
<CAPTION>


                                           November 14, 1996,
                                                Date of           
                                             Acquisition, to        Year Ended        Year Ended
                                            December 31, 1996   December 31, 1997  December 31, 1998
                                           ---------------------------------------------------------
                                                                   (In Thousands)
    <S>                                        <C>                 <C>                <C>      
    STATEMENTS OF OPERATIONS
    Revenues ..............................    $   3,972           $  19,264          $  18,624
    Operating costs and expenses ..........       (2,292)            (16,617)           (18,026)
    Proved property impairment ............            -              (4,600)                --
    Interest expense ......................       (1,331)             (9,952)           (10,356)
    Other income ..........................           23                 202                191
    Income tax (expense) benefit ..........         (175)              3,815              4,158
                                           ---------------------------------------------------------
      Net income (loss) ...................    $     197           $  (7,888)         $  (5,409)
                                           =========================================================
</TABLE>

15.  Business Segments

        The Company conducts its operations through two geographic segments, the
United States and Canada,  and is engaged in the  acquisition,  development  and
production  of crude oil and  natural gas and the  processing  of natural gas in
each country. The Company's significant operations are located in the Texas Gulf
Coast,  the Permian Basin of western Texas and Canada.  Identifiable  assets are
those assets used in the  operations of the segment.  Corporate  assets  consist
primarily  of deferred  financing  fees and other  property and  equipment.  The
Company's revenues are derived primarily from the sale of crude oil, condensate,
natural  gas  liquids  and  natural  gas to  marketers  and  refiners  and  from
processing fees from the custom  processing of natural gas. As a general policy,
collateral is not required for receivables; however, the credit of the Company's
customers is  regularly  assessed.  The Company is not aware of any  significant


                                      F-25
<PAGE>
credit risk relating to its customers and has not experienced significant credit
losses associated with such receivables.

        In  1998  four  customers  accounted  for  approximately  58% of oil and
natural gas production and gas processing  revenues.  Three customers  accounted
for approximately 54% of United States revenue and three customers accounted for
approximately  83% of revenue in Canada.  In 1997 three customers  accounted for
approximately 40% of oil and natural gas production  revenues and gas processing
revenues.  In 1996 four  customers  accounted for  approximately  63% of oil and
natural gas production revenues and gas processing revenues.

        Business  segment  information  about the Company's  1996  operations in
different geographic areas is as follows:

                                             U.S.       Canada        Total
                                        -----------   ----------   ----------
                                                    (In thousands)

Revenues ...........................    $    21,999   $   4,654    $  26,653
                                        ===========   ==========   ==========

Operating profit ...................    $     8,987   $   1,694    $  10,681
                                        ===========   ==========
General corporate ..................                                  (2,044)
Interest expense and amortization
  of deferred financing fees .......                                  (6,521)
                                                                   ==========
  Income before income taxes .......                               $   2,116
                                                                   ==========

Identifiable assets at December 31,     
  1996 .............................    $   168,141   $ 126,266    $ 294,407
                                        ===========   ==========
Corporate assets ...................                                  10,435
                                                                   ----------
  Total assets .....................                               $ 304,842
                                                                   ==========

        Business  segment  information  about the Company's  1997  operations in
different geographic areas is as follows:

                                           U.S.       Canada        Total
                                        -----------   ----------   ----------
                                                    (In thousands)

Revenues ...........................    $    50,172   $  20,759    $  70,931
                                        ===========   ==========   ==========

Operating profit (loss).............    $    19,938   $  (2,125)   $  17,813
                                        ===========   ==========
General corporate ..................                                  (2,309)
Interest expense and amortization
  of deferred financing fees .......                                 (25,880)
                                                                   ==========
  Loss before income taxes .........                               $ (10,376)
                                                                   ==========

Identifiable assets at December 31,     
  1997 .............................    $   198,277   $ 130,969    $ 329,246
                                        ===========   ========== 
Corporate assets ...................                                   9,282
                                                                   ----------
  Total assets .....................                               $ 338,528
                                                                   ==========




                                      F-26
<PAGE>



        Business  segment  information  about the Company's  1998  operations in
different geographic areas is as follows:

                                            U.S.       Canada        Total
                                        -----------   ----------   ----------
                                                    (In thousands)

Revenues ...........................    $    36,267   $  23,817    $  60,084
                                        ===========   =========    =========

Operating profit (loss).............    $   (53,016)  $     877    $ (52,139)
                                        ===========   =========    
General corporate ..................                                  (3,556)
Interest expense and amortization
  of deferred financing fees .......                                 (32,419)
                                                                   ---------
  Loss before income taxes .........                               $ (88,114)
                                                                   =========
Identifiable assets at December 31,     
  1998 .............................    $   153,030   $ 129,301    $ 282,331
                                        ===========   =========   
Corporate assets ...................                                   9,167
                                                                   ---------
  Total assets .....................                               $ 291,498
                                                                   =========

16.  Commodity Swap Agreements

        The Company enters into commodity swap agreements (Hedge  Agreements) to
reduce its  exposure  to price risk in the spot market for crude oil and natural
gas.  Pursuant to the Hedge  Agreements,  either the Company or the counterparty
thereto is required to make payment to the other at the end of each month.

        In November 1996, the Company assumed Hedge Agreements extending through
October 2001 with a counterparty  involving various quantities and fixed prices,
These  Hedge  Agreements  provide  for  the  Company  to  make  payments  to the
counterparty to the extent the market prices  determined  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 O) price for natural gas
exceeds the above fixed prices and for the  counterparty to make payments to the
Company to the extent the market  prices are less than the above  fixed  prices.
The Company accounts for the related gains or losses (a loss of $952,000 in 1997
and a gain of  $268,000  in 1998) in crude oil and  natural  gas  revenue in the
period of the hedged  production.  The Company terminated these hedge agreements
in January 1999 and was paid $750,000 by the counterparty for such termination

        In March  1998 the  Company  entered  into a  costless  collar for 2,000
barrels  of  crude  oil with a floor  price of  $14.00  and a  ceiling  price of
$22.30.The  agreement was effective  April 1, 1998 and extends through March 31,
1999.  Under the terms the Company will be paid when the average  crude price is
below the floor price and pay the  counterparty  when the average  price exceeds
the ceiling price.  During 1998, the Company realized a gain of $282,000 on this
agreement, which is accounted for in crude oil and natural gas revenue.

17.  Proved Property Impairment

        In 1997 and 1998 the Company  recorded a write-down  of its proved crude
oil and natural gas properties of  approximately  $4,600,000,  $3,000,000  after
taxes,  and $61,224,000  under the ceiling  limitation  prescribed for companies
following the full cost method of accounting for its oil and gas properties. The
1997  write-down was related to the Company's  Canadian oil and gas  properties,
the 1998  write-down  was  related to the  Company's  United  States oil and gas
properties.  These  write-downs  were due primarily to a decrease in spot market
prices for the Company's  crude oil and natural gas. Under full cost  accounting
rules,  the  net  capitalized  costs  of oil and gas  properties,  less  related
deferred taxes, are limited by country,  to the lower of unamortized cost or the
cost  ceiling as discussed in Note 1. The risk that the Company will be required
to  write-down  the carrying  value of its crude oil and natural gas  properties
increases  when crude oil and  natural  gas prices are  depressed  or  volatile.


                                      F-27
<PAGE>
Should prices continue to decline,  a further  write-down of the Company's crude
oil and natural gas properties may be required.  If such a write-down were large
enough,  it could  result in the  occurrence  of an event of  default  under the
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.

18.  Subsequent Event

        On January 13, 1999 the Company acquired approximately 14,026,467 common
shares and associated  rights,  representing  approximately  98.8 percent of New
Cache  Petroleums,  LTD. ("New Cache") for approximately $78 million in cash and
the  assumption of  approximately  $10 million of debt.  The Company  intends to
integrate the operations of New Cache into the existing operations of its wholly
owned subsidiary Canadian Abraxas.

19.  Supplemental Oil and Gas Disclosures (Unaudited)

        The  accompanying  table presents  information  concerning the Company's
crude  oil and  natural  gas  producing  activities  as  required  by  Financial
Accounting  Standards 69, "Disclosures about Oil and Gas Producing  Activities."
Capitalized costs relating to oil and gas producing activities are as follows:

                                                         December 31
                                                    ---------------------
                                                       1997      1998
                                                    ---------- ----------
                                                       (In thousands)

    Proved crude oil and natural gas properties .   $ 332,680  $ 324,532
    Unproved properties .........................      11,519     10,675
                                                    ---------- ----------
      Total .......................................   344,199    335,207
    Accumulated depreciation, depletion, and
      amortization, and impairment ..............     (70,717)  (161,593)
                                                    ---------- ----------
        Net capitalized costs ...................   $ 273,482  $ 173,614
                                                    ========= ==========




                                      F-28
<PAGE>
        Costs  incurred in oil and gas property  acquisitions,  exploration  and
development activities are as follows:
<TABLE>
<CAPTION>

                                                                 Years Ended December 31
                              ------------------------------------------------------------------------------------------------
                                           1996                             1997                           1998
                              ------------------------------   ------------------------------   ------------------------------
                                Total      U.S.      Canada     Total       U.S.     Canada      Total       U.S.      Canada
                              --------   --------   --------   --------   --------   --------   --------   --------   --------
                                                                         (In thousands)
Property acquisition costs:
<S>                           <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>     
  Proved ..................   $ 87,005   $ 37,609   $ 49,396   $ 13,800   $   --     $ 13,800   $  2,729   $  1,319   $  1,410
  Unproved ................     37,268      8,230     29,038      8,958       --        8,958       --         --         --
                              --------   --------   --------   --------   --------   --------   --------   --------   --------

                              $124,273   $ 45,839   $ 78,434   $ 22,758   $   --     $ 22,758   $  2,729   $  1,319   $  1,410
                              ========   ========   ========   ========   ========   ========   ========   ========   ========

Property development and
  exploration costs .......   $ 18,133   $ 18,115   $     18   $ 61,414   $ 53,363   $  8,051   $ 51,821   $ 35,421   $ 16,400
                              ========   ========   ========   ========   ========   ========   ========   ========   ========
</TABLE>

        The results of operations  for oil and gas producing  activities  are as
follows:
<TABLE>
<CAPTION>

                                                                Years Ended December 31
                              ------------------------------------------------------------------------------------------------
                                           1996                             1997                           1998
                              ------------------------------   ------------------------------   ------------------------------
                                Total      U.S.      Canada     Total       U.S.     Canada      Total       U.S.      Canada
                              --------   --------   --------   --------   --------   --------   --------   --------   --------
                                                                         (In thousands)
<S>                          <C>         <C>        <C>        <C>        <C>        <C>        <C>        <C>        <C>     
Revenues .................   $ 25,749    $ 21,758   $  3,991   $ 65,826   $ 49,031   $ 16,795   $ 54,263   $ 33,705   $ 20,558
Production costs .........     (5,858)     (5,193)      (665)   (14,881)   (10,749)    (4,132)   (16,841)   (10,299)    (6,542)
Depreciation,
  depletion, and      
  amortization ...........     (9,103)     (7,695)    (1,408)   (27,803)   (18,992)    (8,811)   (30,832)   (17,239)   (13,593)
Proved property ..........  
  impairnebt                     --          --         --       (4,600)      --       (4,600)   (61,223)   (61,223)      --
General and 
  administrative .........       (483)       (401)       (82)    (1,042)      (721)      (321)    (1,381)      (992)      (389)
Income taxes .............       (148)       --         (148)       427       --          427        (14)      --          (14)
                             --------    --------    --------    -------- --------    --------  --------    --------    --------

Results of operations from
  oil and gas producing
  activities (excluding
  corporate overhead and 
   interest costs)........   $ 10,157    $  8,469   $  1,688    $ 17,927  $ 18,569   $   (642)  $(56,028)  $(56,048)  $     20
                             ========    ========   ========    ========  ========   ========   ========   ========   ========
Depletion rate per
  barrel of oil 
  equivalent    ..........   $   5.12    $   5.10   $   5.29    $   5.62  $   5.05   $   6.98   $   5.36   $   5.26   $   5.49
                             ========    ========   ========    ========  ========   ========   ========   ========   ========
</TABLE>




                                      F-29
<PAGE>


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, 1996,  1997, and 1998. 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.
<TABLE>
<CAPTION>
                                                              Total               United States              Canada
                                                     -------------------------------------------------------------------------
                                                         Liquid     Natural     Liquid     Natural      Liquid       Natural
                                                      Hydrocarbons   Gas      Hydrocarbons   Gas      Hydrocarbons     Gas
                                                     ------------- --------- ------------- -------   -------------  ---------- 
                                                        (Barrels)    (Mcf)      (Barrels)    (Mcf)      (Barrels)     (Mcf)
                                                                                          (In Thousands)
    Proved developed and undeveloped reserves:
      <S>                                              <C>        <C>          <C>        <C>                            
      Balance at December 31, 1995 ............         8,267      54,569       8,267      54,569          -             -
        Revisions of previous estimates .......           680      (2,561)        680      (2,561)         -             -
        Extensions and discoveries ............         1,752      10,194       1,746      10,060          6           134
        Purchase of minerals in place .........         8,062     121,408       6,694      65,135      1,368        56,273
        Production ............................          (724)     (6,350)       (670)     (5,042)       (54)       (1,308)
        Sale of minerals in place .............            (2)          -          (2)          -          -             -
                                                     ---------   --------      ------     -------      -----        -------
      Balance at December 31, 1996 ............        18,035     177,260      16,715     122,161      1,320(1)     55,099
        Revisions of previous estimates .......        (1,083)     (4,554)     (1,096)    (10,343)        13         5,789
        Extensions and discoveries ............         2,262      48,405       2,190      40,877         72         7,528
        Purchase of minerals in place .........           585      27,575         197         150        388        27,425
        Production ............................        (1,929)    (21,050)     (1,736)    (12,508)      (193)       (8,542)
        Sale of minerals in place .............           (93)     (6,322)         (9)        (42)       (84)       (6,280)
                                                    ---------   ---------     -------     -------      ------      -------
      Balance at December 31, 1997 ............        17,777     221,314      16,261     140,295      1,516(1)     81,019(2)
        Revisions of previous estimates .......        (3,323)     (7,834)     (3,903)    (17,501)       580         9,667
        Extensions and discoveries ............           266      49,403         237      43,900         29         5,503
        Purchase of minerals in place .........           464      15,167         126       2,033        338        13,134
        Production ............................        (1,596)    (24,930)     (1,322)    (11,707)      (274)      (13,223)
        Sale of minerals in place .............        (5,893)    (55,642)     (5,648)    (46,781)      (245)       (8,861)
                                                    ---------   ---------     -------    --------     ------       -------  
      Balance at December 31, 1998 ............         7,695     197,478       5,751     110,239      1,944(1)     87,239(2)
                                                    =========   =========     =======    ========     ======       =======

</TABLE>


(1) Includes 120,400; 260,200 and 475,400 barrels of liquid hydrocarbon reserves
owned by Grey Wolf of which approximately 57,600; 140,200 and 244,000barrels are
applicable to the minority  interest's  share of these  reserves at December 31,
1996, 1997 and 1998, respectively. 
(2) Includes 7,446 and 28,610 MMcf of natural
gas reserves owned by Grey Wolf of which 4,012 and 14,700 MMcf are applicable to
the minority  interest's  share of these reserves at December 31, 1997 and 1998,
respectively.


                                      F-30
<PAGE>
<TABLE>
<CAPTION>

Estimated Quantities of Proved Oil and Gas Reserves (continued)

                                                             Total               United States              Canada
                                                     -------------------------------------------------------------------------
                                                         Liquid     Natural     Liquid     Natural      Liquid       Natural
                                                      Hydrocarbons   Gas      Hydrocarbons   Gas      Hydrocarbons     Gas
                                                     ------------- --------- ------------- -------   -------------  ----------    
                                                        (Barrels)    (Mcf)      (Barrels)    (Mcf)      (Barrels)     (Mcf)
                                                                                          (In Thousands)

    Proved developed reserves:
      <S>                                                 <C>       <C>          <C>        <C>          <C>         <C>   
      December 31, 1996.......................            14,961    157,660      13,641     103,639      1,320       54,021
                                                     ===========   =========    ========   =========    =======     ========

      December 31, 1997 ......................            14,254    186,490      12,750     109,456      1,504       77,034
                                                     ===========   =========    ========   =========    =======     ========

      December 31, 1998 ......................             5,819    144,588       4,138      65,075      1,681       79,513
                                                     ===========   ==========   ========   =========    =======     ========

</TABLE>
       

                                      F-31
<PAGE>



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,  1998,  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 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.




                                      F-32
<PAGE>

       Set forth below is the  Standardized  Measure relating to proved oil and
gas reserves for:
<TABLE>
<CAPTION>

                                                                      Years Ended December 31
                         ------------------------------------ -------------------------------------- -------------------------------
                                          1996                              1997                                1998
                         ----------------------------------   ---------------------------------    ---------------------------------
                            Total         U.S.      Canada      Tota         U.S.      Canada        Total        U.S.      Canada
                         -----------   ---------   --------   ---------   ---------   ---------    ---------  ---------   ----------
                                                                              (In thousands)

<S>                       <C>          <C>         <C>        <C>         <C>         <C>          <C>        <C>         <C>      
Future cash inflows ...   $1,009,420   $ 824,776   $184,644   $ 714,048   $ 530,627   $ 183,421    $ 474,263  $ 268,821   $ 205,442
Future production and
  development costs ...     (251,749)   (201,498)   (50,251)   (249,604)   (186,445)    (63,159)    (169,736)   (99,187)    (70,549)
Future income tax 
  expense .............     (207,834)   (157,508)   (50,326)    (82,998)    (48,736)    (34,262)     (20,655)      --       (20,655)
                         -----------   ---------   --------   ---------   ---------   ---------    ---------  ---------   ----------
Future net cash flows .      549,837     465,770     84,067     381,446     295,446      86,000      283,872    169,634     114,238
Discount ..............     (220,016)   (193,221)   (26,795)   (129,367)   (107,259)    (22,108)    (102,291)   (75,389)    (26,902)
                         -----------   ---------   --------   ---------   ---------   ---------    ---------  ---------   ----------
Standardized Measure of
  discounted future net
  cash relating to
  proved reserves .....   $  329,821   $ 272,549   $ 57,272   $ 252,079   $ 188,187   $  63,892    $ 181,581  $  94,245   $  87,336
                          ===========  ==========  =========  ==========  =========   =========    =========  =========   ==========

</TABLE>

                                      F-33
<PAGE>
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:

<TABLE>
<CAPTION>


                                                    Year Ended December 31
                                        ------------------------------------------------
                                             1996            1997            1998
                                        --------------- --------------- ----------------
                                                        (In thousands)

<S>                                     <C>             <C>             <C>        
Standardized Measure, beginning  
  of year ..........................    $      87,160     $   329,821     $   252,079
  Sales and transfers of oil and
    gas   produced, net of production         
    costs ............................        (19,887)        (50,945)        (37,422)
  Net changes in prices and
    development   and production              
    costs from prior year ............         65,917        (190,174)        (26,858)
  Extensions, discoveries, and
    improved recovery, less related            
    costs ............................         30,699          49,471          36,187
  Purchases of minerals in place .....        244,930          27,586          28,079
  Sales of minerals in place .........            (24)         (5,720)        (58,099)
  Revision of previous quantity                 
    estimates ........................          2,257          (8,150)        (12,514)
  Change in future income tax expense         (87,393)         70,858         (17,727)
  Other ..............................         (2,554)        (12,389)         (9,005)
  Accretion of discount ..............          8,716          41,721          26,861
                                        --------------- --------------- ----------------
    Standardized Measure, end of year     $   329,821     $   252,079     $   181,581
                                        =============== =============== ================


</TABLE>

                                      F-34
<PAGE>


SIGNATURES

Pursuant to the  requirements of Section 13 or 15(d) of the Securities  Exchange
Act of 1934,  the  Registrant  has duly  caused this report to the signed on its
behalf by the undersigned, thereunto duly authorized.

                                 ABRAXAS PETROLEUM CORPORATION

        By:/s/Robert L.G. Watson        By: /s/ Chris Williford
           --------------------------     -----------------------
              Robert L.G. Watson,          Chris Williford 
              President and Principal      Vice President and
              Executive Officer            Principal Financial and
                                           Accounting Officer
        DATED:

Pursuant to the  requirements  of the Securities and Exchange Act of 1934,  this
report  has  been  signed  below  by the  following  persons  on  behalf  of the
Registrant and in the capacities and on the date indicated.

        Signature                        Name and Title                 Date
/s/ Robert L.G. Watson        Chairman of the Board,                    4/13/99
Robert L.G. Watson            President (Principal Executive Officer)
                              and Director

/s/ Chris Williford           Exec. Vice President and                  4/13/99
Chris Williford               Treasurer (Principal Financial
                              and Accounting Officer) and
                              Director

/s/ Robert W. Carington       Exec. Vice President and                  4/13/99
Robert W. Carington           Director

/s/ Franklin Burke            Director                                  4/13/99
Franklin Burke

/s/ Robert D. Gershen         Director                                  4/13/99
Robert D.Gershen

/s/ Richard M. Kleberg, III   Director                                  4/13/99
Richard M. Kleberg, III

/s/ Harold Carter             Director                                  4/13/99
Harold Carter

/s/ James C. Phelps           Director                                  4/13/99
James C. Phelps

/s/ Paul A. Powell, Jr.       Director                                  4/13/99
Paul A.Powell, Jr.

/s/ Richard M. Riggs          Director                                  4/13/99
Richard M. Riggs


                                       42
<PAGE>
                                                             EXHIBIT 4.6
                                                              

                          ABRAXAS PETROLEUM CORPORATION
                                   as Issuer,


                     THE SUBSIDIARY GUARANTORS PARTY HERETO

                                       and


                  NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION,
                                   as Trustee




                                    INDENTURE

                           Dated as of March 26, 1999




                                   $63,500,000
                           12.875% Senior Notes due 2003









<PAGE>




                              CROSS-REFERENCE TABLE

 TIA                                                          Indenture
Section                                                        Section

310(a)(1).........................................................7.10
      (a)(2)......................................................7.10
      (a)(3)......................................................N.A.
      (a)(4)......................................................N.A.
      (a)(5)......................................................7.08; 7.10,
 ..................................................................7.11
      (b).........................................................7.08; 7.10,
 .................................................................10.02
      (c).........................................................N.A.
311(a)............................................................7.11
      (b).........................................................7.11
      (c).........................................................N.A.
312(a)............................................................2.05
      (b)........................................................10.03
      (c)........................................................10.03
313(a)............................................................7.06
      (b)(1)......................................................N.A.
      (b)(2)......................................................7.06
      (c).........................................................7.06; 10.02
      (d).........................................................7.06
314(a)............................................................4.06; 4.08;
 .................................................................11.02
      (b)........................................................12.02
      (c)(1)......................................................7.02, 10.04
      (c)(2)......................................................7.02, 10.04
      (c)(3)......................................................N.A.
      (d)........................................................12.03
      (e)........................................................10.05
      (f).........................................................N.A.
315(a)............................................................7.01(b)
      (b).........................................................7.05; 10.02
      (c).........................................................7.01(a)
      (d).........................................................7.01(c)
      (e).........................................................6.11
316(a)(last sentence).............................................2.09
      (a)(1)(A)...................................................6.05
      (a)(1)(B)...................................................6.04
      (a)(2)......................................................N.A.
      (b).........................................................6.07
      (c).........................................................9.04
317(a)(1).........................................................6.08
      (a)(2)......................................................6.09
      (b).........................................................2.04



<PAGE>

318(a)...........................................................10.01
      (c)........................................................10.01



N.A. means Not Applicable

NOTE:  This  Cross-Reference  Table is not and shall not,  for any  purpose,  be
deemed to be a part of the Indenture.


<PAGE>


                                                  TABLE OF CONTENTS


                                                                          Page

             ARTICLE ONE DEFINITIONS AND INCORPORATION BY REFERENCE
  SECTION 1.01.  Definitions................................................1
  SECTION 1.02.  Incorporation by Reference of TIA.........................17
  SECTION 1.03.  Rules of Construction.....................................18

                          ARTICLE TWOTHE NOTES
  SECTION 2.01.  Principal Amount; Form and Dating.........................18
  SECTION 2.02.  Execution and Authentication; Aggregate Principal Amount..19
  SECTION 2.03.  Registrar and Paying Agent................................20
  SECTION 2.04.  Paying Agent To Hold Assets in Trust......................20
  SECTION 2.05.  Holder Lists..............................................20
  SECTION 2.06.  Transfer and Exchange.....................................20
  SECTION 2.07.  Replacement Notes.........................................21
  SECTION 2.08.  Outstanding Notes.........................................21
  SECTION 2.09.  Treasury Notes............................................21
  SECTION 2.10.  Temporary Notes...........................................22
  SECTION 2.11.  Cancellation..............................................22
  SECTION 2.12.  Defaulted Interest........................................22
  SECTION 2.13.  CUSIP Number..............................................22
  SECTION 2.14.  Deposit of Monies.........................................23
  SECTION 2.15.  Restrictive Legends.......................................23
  SECTION 2.16.  Book-Entry Provisions for Global Security.................24
  SECTION 2.17.  Special Transfer Provisions...............................25
  SECTION 2.18.  Liquidated Damages Under Registration Rights Agreement....26
  
                            ARTICLE THREE REDEMPTION
  SECTION 3.01.  Notices to Trustee........................................27
  SECTION 3.02.  Selection of Notes To Be Redeemed.........................27
  SECTION 3.03.  Optional Redemption.......................................27
  SECTION 3.04.  Notice of Redemption......................................28
  SECTION 3.05.  Effect of Notice of Redemption............................28
  SECTION 3.06.  Deposit of Redemption Price...............................28
  SECTION 3.07.  Notes Redeemed in Part....................................29

                          ARTICLE FOUR COVENANTS
  SECTION 4.01.  Payment of Notes..........................................29
  SECTION 4.02.  Maintenance of Office or Agency...........................29
  SECTION 4.03.  Corporate Existence.......................................29
  SECTION 4.04.  Payment of Taxes and Other Claims.........................29
                                       ii
<PAGE>

  SECTION 4.05.  Maintenance of Properties and Insurance...................30
  SECTION 4.06.  Compliance Certificate; Notice of Default.................30
  SECTION 4.07.  Compliance with Laws......................................31
  SECTION 4.08.  Reports to Holders........................................31
  SECTION 4.09.  Waiver of Stay, Extension or Usury Laws...................31
  SECTION 4.10.  Limitation on Restricted Payments.........................31
  SECTION 4.11.  Limitation on Transactions with Affiliates................33
  SECTION 4.12.  Limitation on Incurrence of Additional Indebtedness.......33
  SECTION 4.13.  Limitation on Dividend and Other Payment Restrictions
                 Affecting Restricted Subsidiaries.........................34
  SECTION 4.14.  Limitation on Restricted and Unrestricted Subsidiaries....35
  SECTION 4.15.  Change of Control.........................................36
  SECTION 4.16.  Limitation on Asset Sales.................................37
  SECTION 4.17.  Limitations with Respect to Capital Stock
                 of Restricted Subsidiaries................................39
  SECTION 4.18.  Limitation on Liens.......................................40
  SECTION 4.19.  Limitation on Conduct of Business.........................40
  SECTION 4.20.  Additional Subsidiary Guarantees..........................40
  SECTION 4.21.  Limitation on Restrictive Covenants.......................40
  SECTION 4.22.  Impairment of Security Interest...........................40
  SECTION 4.23.  Additional Amounts........................................41
  SECTION 4.24.  Maintenance of Lien; Additional Collateral................41

                       ARTICLE FIVE SUCCESSOR CORPORATION
  SECTION 5.01.  Merger, Consolidation and Sale of Assets..................42
  SECTION 5.02.  Successor Corporation Substituted.........................43

                              ARTICLE SIX REMEDIES
  SECTION 6.01.  Events of Default.........................................43
  SECTION 6.02.  Acceleration..............................................45
  SECTION 6.03.  Other Remedies............................................45
  SECTION 6.04.  Waiver of Past Defaults...................................45
  SECTION 6.05.  Control by Majority.......................................45
  SECTION 6.06.  Limitation on Suits.......................................46
  SECTION 6.07.  Right of Holders To Receive Payment.......................46
  SECTION 6.08.  Collection Suit by Trustee................................46
  SECTION 6.09.  Trustee May File Proofs of Claim..........................46
  SECTION 6.10.  Priorities................................................47
  SECTION 6.11.  Undertaking for Costs.....................................47
  SECTION 6.12.  Restoration of Rights and Remedies........................47

                              ARTICLE SEVEN TRUSTEE
  SECTION 7.01.  Duties of Trustee.........................................47
  SECTION 7.02.  Rights of Trustee.........................................48
  SECTION 7.03.  Individual Rights of Trustee..............................49

                                      iii
<PAGE>

  SECTION 7.04.  Trustee's Disclaimer......................................50
  SECTION 7.05.  Notice of Default.........................................50
  SECTION 7.06.  Reports by Trustee to Holders.............................50
  SECTION 7.07.  Compensation and Indemnity................................50
  SECTION 7.08.  Replacement of Trustee....................................51
  SECTION 7.09.  Successor Trustee by Merger, Etc..........................51
  SECTION 7.10.  Eligibility; Disqualification.............................52
  SECTION 7.11.  Preferential Collection of Claims Against Issuer..........52
  SECTION 7.12.  Other Capacities..........................................52

                ARTICLE EIGHT DISCHARGE OF INDENTURE; DEFEASANCE
  SECTION 8.01.  Termination of Issuer's Obligations.......................52
  SECTION 8.02.  Application of Trust Money................................54
  SECTION 8.03.  Repayment to the Issuer...................................54
  SECTION 8.04.  Reinstatement.............................................54
  SECTION 8.05.  Acknowledgment of Discharge by Trustee....................54

                     ARTICLE NINE MODIFICATION OF INDENTURE
  SECTION 9.01.  Without Consent of Holders................................55
  SECTION 9.02.  With Consent of Holders...................................55
  SECTION 9.03.  Compliance with TIA.......................................55
  SECTION 9.04.  Revocation and Effect of Consents.........................55
  SECTION 9.05.  Notation on or Exchange of Notes..........................56
  SECTION 9.06.  Trustee To Sign Amendments, Etc...........................56
  SECTION 9.07.  Evidence of Amendments, Supplements, Waivers..............56

                            ARTICLE TEN MISCELLANEOUS
  SECTION 10.01.  TIA Controls.............................................56
  SECTION 10.02.  Notices..................................................56
  SECTION 10.03.  Communications by Holders with Other Holders.............57
  SECTION 10.04.  Certificate and Opinion as to Conditions Precedent.......57
  SECTION 10.05.  Statements Required in Certificate or Opinion............58
  SECTION 10.06.  Rules by Trustee, Paying Agent, Registrar................58
  SECTION 10.07.  Legal Holidays...........................................58
  SECTION 10.08.  Governing Law............................................58
  SECTION 10.09.  No Adverse Interpretation of Other Agreements............58
  SECTION 10.10.  No Personal Liability....................................58
  SECTION 10.11.  Successors...............................................59
  SECTION 10.12.  Duplicate Originals......................................59
  SECTION 10.13.  Severability.............................................59
  SECTION 10.14.  Independence of Covenants................................59
  SECTION 10.15.  Currency Indemnity.......................................59

                                       iv
<PAGE>

                        ARTICLE ELEVEN GUARANTEE OF NOTES
  SECTION 11.01.  Unconditional Guarantee..................................59
  SECTION 11.02.  Limitations on Guarantees................................60
  SECTION 11.03.  Execution and Delivery of Guarantee......................61
  SECTION 11.04.  Release of a Subsidiary Guarantor........................61
  SECTION 11.05.  Waiver of Subrogation....................................61
  SECTION 11.06.  Immediate Payment........................................62
  SECTION 11.07.  No Set-Off...............................................62
  SECTION 11.08.  Obligations Absolute.....................................62
  SECTION 11.09.  Obligations Continuing...................................62
  SECTION 11.10.  Obligations Not Reduced..................................62
  SECTION 11.11.  Obligations Reinstated...................................63
  SECTION 11.12.  Obligations Not Affected.................................63
  SECTION 11.13.  Waiver...................................................64
  SECTION 11.14.  No Obligation To Take Action Against the Issuer..........64
  SECTION 11.15.  Dealing with the Issuer and Others.......................64
  SECTION 11.16.  Default and Enforcement..................................64
  SECTION 11.17.  Acknowledgment...........................................65
  SECTION 11.18.  Costs and Expenses.......................................65
  SECTION 11.19.  No Merger or Waiver; Cumulative Remedies.................65
  SECTION 11.20.  Survival of Obligations..................................65
  SECTION 11.21.  Guarantee in Addition to Other Obligations...............65
  SECTION 11.22.  Severability.............................................65


                             ARTICLE TWELVE SECURITY
  SECTION 12.01.  Grant of Security Interest; Remedies.....................66
  SECTION 12.02.  Recording and Opinions...................................66
  SECTION 12.03.  Release of Collateral....................................67
  SECTION 12.04.  Specified Releases of Collateral.........................67
  SECTION 12.05.  Rights of Purchasers; Form and Sufficiency of Release....69
  SECTION 12.06.  Authorization of Actions to Be Taken by the Trustee
                  Under the Security Documents.............................69
  SECTION 12.07.  Authorization of Receipt of Funds by the Trustee Under
                  the Security Documents...................................70
  SECTION 12.08.  Use of Trust Moneys......................................70

                                       v
<PAGE>









Exhibit A - Form of Initial Note............................................A-1
Exhibit B - Form of Exchange Note...........................................B-1
Exhibit C - Form of Certificate To Be Delivered in Connection with
            Transfers to Non-QIB Accredited Investors.......................C-1
Exhibit D - Form of Certificate To Be Delivered in Connection with 
            Transfers Pursuant to Regulation S .............................D-1
Exhibit E - Guarantee.......................................................E-1
Exhibit F - Form of Supplemental Indenture..................................F-1

Note:  This Table of Contents is not, and shall not, for any purpose,  be deemed
to be part of the Indenture.

                                       ix
<PAGE>
         INDENTURE,  dated as of March  26,  1999,  is among  Abraxas  Petroleum
Corporation,  a Nevada  corporation (the "Issuer"),  Canadian Abraxas  Petroleum
Limited,  an Alberta  corporation  and  wholly  owned  subsidiary  of the Issuer
("Canadian  Abraxas"),  New Cache Petroleums,  Ltd., an Alberta  corporation and
wholly owned  subsidiary  of Canadian  Abraxas ("New  Cache"),  Sandia Oil & Gas
Corporation,  a Texas  corporation  and wholly  owned  subsidiary  of the Issuer
("Sandia"),  and Norwest Bank Minnesota,  National Association,  as Trustee (the
"Trustee").

         The Issuer has duly  authorized  the  creation of the 12f% Senior Notes
due 2003,  Series A (the "Initial Notes") and 12f% Senior Notes due 2003, Series
B (the "Exchange Notes") to be issued in exchange for the Initial Notes pursuant
to the  Registration  Rights  Agreement  (as  defined  herein)  and,  to provide
therefor,  the Issuer has duly  authorized  the  execution  and delivery of this
Indenture.  The Notes (as defined herein) will be guaranteed on a senior secured
basis by Canadian  Abraxas,  New Cache,  Sandia and each of the Issuer's  future
Restricted  Subsidiaries (as defined herein) which become Subsidiary  Guarantors
as required in this Indenture. All things necessary to make the Notes, when duly
issued and executed by the Issuer,  and authenticated  and delivered  hereunder,
the valid  obligations  of the  Issuer,  and to make this  Indenture a valid and
binding agreement of the Issuer, have been done.

         Each  party  hereto  agrees as  follows  for the  benefit  of the other
parties and for the equal and ratable benefit of the Holders of the Notes.

                                   ARTICLE ONE

                   DEFINITIONS AND INCORPORATION BY REFERENCE

         SECTION 1.01.  Definitions.


         "Acquired  Indebtedness"  means  Indebtedness of a Person or any of its
Subsidiaries  (a)  existing  at  the  time  such  Person  becomes  a  Restricted
Subsidiary  or at the time it merges or  consolidates  with the Issuer or any of
its Restricted Subsidiaries,  or (b) which becomes Indebtedness of the Issuer 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:  (1) the sum of: (A) discounted
future  net  revenues  from  proved oil and gas  reserves  of the Issuer and its
consolidated Restricted  Subsidiaries,  calculated in accordance with Commission
guidelines  (before  any  state  or  federal  income  tax),  as  estimated  by a
nationally  recognized firm of independent  petroleum  engineers as of a date no
earlier  than the date of the  Issuer's  latest  annual  consolidated  financial
statements,  as increased  by, as of the date of  determination,  the  estimated
discounted  future net revenues from (i)  estimated  proved oil and gas reserves
acquired  since the date of such year-end  reserve report and (ii) 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 (iii) estimated proved oil and gas
reserves  produced or disposed of since the date of such year-end reserve report
and (iv) 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 (i) through (iv),  such
increases  and  decreases  shall  be as  estimated  by  the  Issuer'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  (1)(A)  shall be  confirmed in
writing,  by a nationally  recognized  firm of independent  petroleum  engineers
(which may be the  Issuer's  independent  petroleum  engineers  who  prepare the
Issuer's  annual  reserve  report),  plus  (B) the  capitalized  costs  that are
attributable  to oil and  gas  properties  of the  Issuer  and its  consolidated

                                       1
<PAGE>
Restricted   Subsidiaries   to  which  no  proved  oil  and  gas   reserves  are
attributable,  based on the  Issuer's  books and records as of a date no earlier
than the date of the Issuer's latest annual or quarterly  financial  statements,
plus  (C) the Net  Working  Capital  on a date no  earlier  than the date of the
Issuer's latest consolidated annual or quarterly financial statements,  plus (D)
with  respect to each  other  tangible  asset of the Issuer or its  consolidated
Restricted Subsidiaries  specifically including, but not to the exclusion of any
other qualifying  tangible assets,  the Issuer'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
(i) the net book value of such other  tangible  asset on a date no earlier  than
the date of the  Issuer's  latest  consolidated  annual or  quarterly  financial
statements or (ii) the appraised value, as estimated by a qualified  Independent
Advisor,  of such  other  tangible  assets  of the  Issuer  and  its  Restricted
Subsidiaries,  as of a date no  earlier  than  the date of the  Issuer's  latest
audited financial statements minus (2) minority interests and, to the extent not
otherwise taken into account in determining  Adjusted  Consolidated Net Tangible
Assets,  any gas  balancing  liabilities  of the  Issuer  and  its  consolidated
Restricted  Subsidiaries  reflected in the  Issuer'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 this  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 Issuer, (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 this  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. For purposes of this definition, 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 provided in Section 4.11.

         "Agent" means any Registrar, Paying Agent, co-Registrar, authenticating
agent or securities custodian.

         "Agent Members" has the meaning provided in Section 2.16.

         "Asset  Acquisition"  means:  (a) an  Investment  by the  Issuer 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 Issuer or
any  Restricted  Subsidiary,  or  (b)  the  acquisition  by  the  Issuer  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 comprise  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
Issuer or any of its Restricted  Subsidiaries  (including any Sale and Leaseback
Transaction) to any Person other than the Issuer 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  Issuer  or any  Restricted
Subsidiary,  including any  disposition by means of a merger,  consolidation  or
similar transaction; provided, however, that the following will not be deemed to
be an Asset Sale: (i) the sale, lease, conveyance, disposition or other transfer
of all or substantially  all of the assets of the Issuer in a transaction  which
is made in compliance  with Article Five, (ii) any Investment in an Unrestricted

                                       2
<PAGE>
Subsidiary  which is made in compliance  with Section 4.10,  (iii)  disposals or
replacements of obsolete equipment in the ordinary course of business,  (iv) the
sale,  lease,  conveyance,  disposition  or other  transfer by the Issuer or any
Restricted  Subsidiary of assets or property to the Issuer or one or more Wholly
Owned  Restricted  Subsidiaries,  (v) any  disposition of  Hydrocarbons or other
mineral  products  for  value  in the  ordinary  course  of  business,  (vi) the
abandonment,  surrender, termination,  cancellation,  release, farmout, lease or
sublease  of  undeveloped  oil and gas  properties  in the  ordinary  course  of
business  or oil and gas  properties  which are not  capable  of  production  in
economic quantities,  (vii) the contemporaneous  trade or exchange by the Issuer
or any of its  Restricted  Subsidiaries  of any oil and gas property or interest
therein  owned or held by such  Person for any oil and gas  property or interest
therein  owned or held by another  Person  which the Board of  Directors  of the
Issuer  determines  in good faith by  resolution  to be of  approximately  equal
value,  including any cash or Cash Equivalents  necessary in order to achieve an
exchange of equivalent  value;  provided that such cash and Cash Equivalents are
subject to Section 4.16; provided,  further, to the extent not prohibited by the
terms of any instruments  evidencing Acquired  Indebtedness  associated with the
property  received,  that the property received by the Issuer or such Restricted
Subsidiary  is made  subject  to the  Lien of this  Indenture  and the  Security
Documents to the extent that such  property  traded or exchanged  was subject to
such Lien, provided that any such property received that constitutes Oil and Gas
Assets shall be subject to such Lien in any event; and provided,  further,  that
to the extent the property traded or exchanged by the Issuer and/or a Restricted
Subsidiary   contains  proved  reserves,   the  property  received  contains  an
approximately equal value of proved reserves, including cash or Cash Equivalents
to  achieve  an  exchange  of  equivalent  value,  or (viii)  the  sale,  lease,
conveyance,  disposition  or other  transfer  by the  Issuer  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 sale, lease,  conveyance,  disposition or
transfer) of all such assets and property so sold, leased, conveyed, disposed or
transferred since the Issue Date pursuant to this clause (viii) shall not exceed
$1,000,000 in any one year.

         "Authenticating Agent" has the meaning provided in Section 2.02.

         "Available  Proceeds  Amount"  means  (a)  the  sum of  all  Collateral
Proceeds and all  Non-Collateral  Proceeds  remaining after application to repay
any Indebtedness secured by the assets the subject of the Asset Sale giving rise
to such Non-Collateral  Proceeds;  and (b) for purposes of determining whether a
Net Proceeds  Offer must be made as of any day and the amount of such offer,  an
amount equal to: the amount set forth under clause (a) above minus the aggregate
amount of all such Asset Sale proceeds  previously  spent in compliance with the
terms of Section 12.08.

         "Bankruptcy  Law" means  Title 11, U.S.  Code or any  similar  Federal,
state or foreign law for the relief of debtors.

         "Board of Directors"  means, as for 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.

         "Canadian Abraxas" means the party named as such in the first paragraph
of this Indenture  until a successor  replaces it pursuant to this Indenture and
thereafter means such successor.

         "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.

                                       3
<PAGE>
         "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 S&P or Moody's;  (c)  commercial  paper maturing no more
than one year from the date of creation thereof and, at the time of acquisition,
having a rating  of at least  A-1  from S&P or at least  P-1 from  Moody's;  (d)
certificates  of deposit or bankers'  acceptances  maturing within one year from
the date of acquisition  thereof issued by any bank organized  under the laws of
the United States of America or any state thereof or the District of Columbia or
any United  States  branch of a foreign  bank having at the date of  acquisition
thereof  combined  capital  and  surplus  of not  less  than  $250,000,000;  (e)
repurchase  obligations  with a term of not more than seven days for  underlying
securities of the types described in clause (a) above entered into with any bank
meeting the  qualifications  specified in clause (d) above; and (f) money market
mutual or similar funds having assets in excess of $100,000,000.

         "Change  of  Control"  means  the  occurrence  of  one or  more  of the
following  events:  (a) any sale,  lease,  exchange  or other  transfer  (in one
transaction or a series of related  transactions) of all or substantially all of
the assets of the Issuer 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 this  Indenture);  (b) the  approval by the
holders  of  Capital  Stock  of the  Issuer  of any  plan  or  proposal  for the
liquidation or dissolution of the Issuer (whether or not otherwise in compliance
with the provisions of this 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  Issuer;  or (d) the  replacement  of a
majority of the Board of Directors of the Issuer over a two-year period from the
directors who  constituted the Board of Directors of the Issuer 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 Issuer 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 provided in Section 4.15.

         "Change of Control  Payment  Date" has the meaning  provided in Section
4.15.

         "Collateral"  means,  collectively,  all of  the  property  and  assets
(including, without limitation, Trust Moneys) that are from time to time subject
to, or  purported  to be subject  to, the Lien of this  Indenture  or any of the
Security Documents.

         "Collateral Account" shall have the meaning provided in Section 12.08.

         "Collateral  Proceeds"  means any Net Cash  Proceeds  received  from an
Asset Sale involving Collateral.

         "Commission" means the SEC.

         "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.

                                       4
<PAGE>
         "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 Issuer 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 Issuer 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 Issuer and its Restricted  Subsidiaries in accordance
with GAAP.

         "Consolidated EBITDA Coverage Ratio" means, with respect to the Issuer,
the ratio of: (a) Consolidated  EBITDA of the Issuer 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 Issuer for the Four
Quarter Period.

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  Issuer  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
Issuer 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  Issuer  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 Issuer 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 Issuer 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 Issuer 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 Issuer (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.

                                       5
<PAGE>
         "Consolidated  Interest  Expense" means, with respect to the Issuer for
any period, the sum of, without  duplication:  (a) the aggregate of the interest
expense of the Issuer 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 Issuer 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 Issuer for any
period,  the  aggregate  net income  (or loss) of the Issuer and its  Restricted
Subsidiaries for such period on a consolidated  basis,  determined in accordance
with GAAP;  provided,  however,  that there  shall be  excluded  therefrom:  (a)
after-tax gains from Asset Sales or abandonments or reserves  relating  thereto,
(b) after-tax items classified as  extraordinary or nonrecurring  gains, (c) the
net  income of any  Person  acquired  in a "pooling  of  interests"  transaction
accrued  prior to the date it becomes a  Restricted  Subsidiary  or is merged or
consolidated  with the Issuer 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 Issuer has an  interest,  other than a
Restricted  Subsidiary,  except to the extent of cash dividends or distributions
actually paid to the Issuer 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 Issuer by  consolidation  or merger or as a  transferee  of the  Issuer'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 Issuer, for
any  period,  the  aggregate  depreciation,  depletion,  amortization  and other
non-cash  expenses  of the  Issuer  and  its  Restricted  Subsidiaries  reducing
Consolidated  Net  Income  of  the  Issuer  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.

         "Corporate  Trust  Office"  means the office of the Trustee at which at
any  particular   time  its  corporate   trust  business  shall  be  principally
administered, which office at the date of execution of this Indenture is located
at Sixth and Marquette, Minneapolis, Minnesota 55479-0069.

         "Covenant Defeasance" has the meaning set forth in Section 8.01.

         "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 Issuer 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.

                                       6
<PAGE>
         "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 Issuer
or any  Restricted  Subsidiary of the Issuer which is related to the business of
the Issuer and its Restricted 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
Issuer or any  Restricted  Subsidiary  of the  Issuer  against  fluctuations  in
currency values.

         "Custodian"  means  any  receiver,   trustee,   assignee,   liquidator,
sequestrator or similar official under any Bankruptcy Law.

         "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.

         "Default  Interest  Payment Date" has the meaning set forth in Section.
2.12.

         "Depository"  means The  Depository  Trust  Company,  its  nominees and
successors.

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

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

         "Event of Default" has the meaning provided in Section 6.01.

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

         "Exchange  Notes" has the meaning set forth in the second  paragraph of
this Indenture.

         "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 Issuer acting reasonably and in good faith and shall be evidenced by a Board
Resolution of the Issuer delivered to the Trustee;  provided,  however, that (a)
if the  aggregate  non-cash  consideration  to be  received by the Issuer 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.

         "Global Notes" has the meaning provided in Section 2.01.

                                       7
<PAGE>
         "Grey Wolf" means Grey Wolf Exploration Ltd., an Alberta corporation.

         "guarantee"  means any  obligation,  contingent  or  otherwise,  of any
Person directly or indirectly  guaranteeing any Indebtedness or other obligation
of any other Person and, without  limiting the generality of the foregoing,  any
obligation,  direct or indirect,  contingent or otherwise, of such Person (i) to
purchase or pay (or advance or supply funds for the purchase or payment of) such
Indebtedness or other obligation of such other Person (whether arising by virtue
of partnership  arrangements,  or by agreement to keep-well, to purchase assets,
goods,  securities  or  services,  to  take-or-pay,  or  to  maintain  financial
statement conditions or otherwise) or (ii) entered into for purposes of assuring
in any other manner the obligee of such  Indebtedness or other obligation of the
payment  thereof or to protect such obligee  against loss in respect thereof (in
whole  or in part)  (but if in  part,  only to the  extent  thereof);  provided,
however,  that the term  "guarantee"  shall not  include  (A)  endorsements  for
collection  or deposit in the  ordinary  course of business  and (B)  guarantees
(other than  guarantees of  Indebtedness)  by the Issuer in respect of assisting
one or more Restricted  Subsidiaries in the ordinary course of their  respective
businesses,  including  without  limitation  guarantees of trade obligations and
operating  leases,  on ordinary  business terms.  The term "guarantee" used as a
verb has a corresponding meaning.

         "Guarantees" has the meaning set forth in Section 11.01.

         "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"  means,  with respect to any  Indebtedness,  to create,  incur,
assume,  guarantee,  acquire,  become liable,  contingently  or otherwise,  with
respect to such  Indebtedness,  or otherwise become  responsible for the payment
thereof.

         "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 this 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 Issuer.

The "amount" or "principal  amount" of Indebtedness at any time of determination
as used herein  represented by: (1) 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,  (2) any Capitalized Lease Obligation shall be
the  amount  determined  in  accordance  with the  definition  thereof,  (3) any
Interest Swap Obligations  included in the definition of Permitted  Indebtedness
shall be zero, (4) all other  unconditional  obligations  shall be the amount of
the liability  thereof  determined in  accordance  with GAAP,  and (5) all other
contingent  obligations  shall be the  maximum  liability  at such  date of such
Person.

                                       8
<PAGE>
         "Indenture" means this Indenture,  as amended or supplemented from time
to time in accordance with the terms hereof.

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

         "Initial  Notes" has the meaning set forth in the second  paragraph  of
this Indenture.

         "Initial Purchaser" means Jefferies & Company, Inc.

         "Institutional  Accredited  Investor"  means an institution  that is an
"accredited investor" as that term is defined in Rule 501(a)(1), (2), (3) or (7)
under the Securities Act.

         "interest"  when used with  respect to any Note means the amount of all
interest  accruing on such Note,  including any  applicable  defaulted  interest
pursuant to Section 2.12 and any Liquidated Damages pursuant to the Registration
Rights Agreement.

         "Interest  Payment Date" means the stated maturity of an installment of
interest on the Notes.

         "Interest Swap Obligation" 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.

         "Internal  Revenue  Code" means the Internal  Revenue Code of 1986,  as
amended to the date hereof and from time to time hereafter.

         "Investment" means, with respect to any Person, any direct or indirect:
(a) loan, advance or other extension of credit (including, without limitation, a
guarantee)  or capital  contribution  (by means of any transfer of cash or other
property (valued at the fair market value thereof as of the date of transfer) to
others or any  payment  for  property  or  services  for the  account  or use of
others), (b) purchase or acquisition by such Person of any Capital Stock, bonds,
notes,  debentures or other  securities or evidences of Indebtedness  issued by,
any other Person  (whether by merger,  consolidation,  amalgamation or otherwise
and whether or not  purchased  directly  from the issuer of such  securities  or
evidences of  Indebtedness),  (c) 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  Section  4.12,  and (d) 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 Issuer and its  Restricted  Subsidiaries  on
commercially  reasonable  terms in accordance with normal trade practices of the
Issuer 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
Issuer 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 Issuer,  the Issuer
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 Initial Notes.

         "Issuer"  means the party named as such in the first  paragraph of this
Indenture  until  a  successor  replaces  it  pursuant  to  this  Indenture  and
thereafter means such successor.

                                       9
<PAGE>
         "Issuer  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 Issuer or any of its Restricted  Subsidiaries,  which business activities
are not prohibited by the terms of this Indenture.

         "Legal Defeasance" has the meaning set forth in Section 8.01.

         "Legal Holiday" has the meaning provided in Section 10.07.

         "Lien"  means  any lien,  mortgage,  deed of  trust,  pledge,  security
interest,  floating or other 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).

         "Liquidated   Damages"   shall  have  the  meaning  set  forth  in  the
Registration Rights Agreement.

         "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
Issuer and  consolidated  Restricted  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 such fiscal quarter of
oil and gas reserves that have been estimated by independent petroleum engineers
and on which a report or  reports  exist,  (ii) any  disposition  of  properties
existing at the  beginning of such fiscal  quarter that have been disposed of as
provided  in Section  4.16,  and (iii) any  reserves  added  during  such fiscal
quarter  attributable  to the drilling or  recompletion of wells not included in
previous reserve estimates, but which will be included in future quarters.

         "Maturity Date" means March 15, 2003.

         "Moody's" means Moody's Investors Service, Inc. and its successors.

         "Mortgage" means any mortgage, deed of trust, assignment of production,
security agreement, fixture filing, guarantee of debts and liabilities,  general
security  agreement,  financing  statement  or  other  instrument  executed  and
delivered by the Issuer or any Restricted  Subsidiary of the Issuer and granting
a Lien in favor of the Trustee  for the benefit of the Trustee and the  Holders,
as the  same may be  amended,  supplemented  or  modified  from  time to time in
accordance with the terms thereof and of this Indenture.

         "Net Cash  Proceeds"  means,  with  respect  to any Asset  Sale,  sale,
transfer  or  other  disposition,  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 Issuer or any
of its Restricted  Subsidiaries  from such Asset Sale,  sale,  transfer or other
disposition net of: (a) reasonable  out-of-pocket  expenses and fees relating to
such  Asset  Sale,  sale,  transfer  or other  disposition  (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)  appropriate  amounts  (determined  by the Chief
Financial  Officer of the Issuer) to be provided by the Issuer 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,
sale, transfer or other disposition and retained by the Issuer or any Restricted
Subsidiary,  as the case may be, after such Asset Sale, sale,  transfer or other
disposition  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, sale,  transfer or other disposition (but excluding any payments which, by
the terms of the  indemnities  will not,  be made during the term of the Notes),
and (d) the aggregate  amount of cash and Cash  Equivalents so received which is
used to retire any then existing Indebtedness (other than Indebtedness under the
Notes) of the Issuer or such Restricted Subsidiary which is secured by a Lien on
the property subject of the Asset Sale, sale, transfer or other disposition.

         "Net Proceeds Offer" has the meaning set forth in Section 4.16.

                                       10
<PAGE>
         "Net Proceeds  Offer Payment Date" has the meaning set forth in Section
4.16.

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

         "New  Cache"  means the party named as such in the first  paragraph  of
this  Indenture  until a successor  replaces it pursuant to this  Indenture  and
thereafter means such successor.

         "Non-Collateral Proceeds" has the meaning set forth in Section 4.16.

         "Non-Recourse   Indebtedness"   with   respect  to  any  Person   means
Indebtedness  of  such  Person  for  which:  (a) 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 (b) 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: (i) fraud or  misrepresentation  by the Person in connection with
such  Indebtedness,  (ii) such Person failing to pay taxes or other charges that
result in the creation of Liens on any portion of the specific property securing
such Indebtedness or failing to maintain any insurance on such property required
under the instruments securing such Indebtedness, (iii) the conversion of any of
the collateral for such  Indebtedness,  (iv) such Person failing to maintain any
of the  collateral  for such  Indebtedness  in the condition  required under the
instruments securing the Indebtedness,  (v) any income generated by the specific
property  securing  such  Indebtedness  being  applied in a manner not otherwise
allowed in the instruments securing such Indebtedness, (vi) 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  (vii)  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, that
upon the occurrence of any of the foregoing clauses (i) through (vii) 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.

         "Non-U.S.  Person" means a Person who is not a U.S. person,  as defined
in Regulation S.

         "Notes"  means the Initial  Notes and the Exchange  Notes  treated as a
single  class of  securities,  as amended or  supplemented  from time to time in
accordance with the terms hereof, that are issued pursuant to this Indenture.

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

         "Offering  Memorandum" means the confidential Offering Memorandum dated
March 27, 1999 of the Issuer relating to the offering of the Notes.

         "Officer" means, with respect to any Person,  the Chairman of the Board
of Directors,  the Chief Executive Officer,  the President,  any Vice President,
the Chief Financial Officer, the Treasurer, the Controller,  or the Secretary of
such Person,  or any other officer  designated by the Board of Directors serving
in a similar capacity.

         "Officers'  Certificate"  means a certificate signed by two Officers of
the Issuer  complying with the requirements of Sections 10.04 and 10.05, as they
relate to the giving of an Officers' Certificate.

         "Oil and Gas Assets" means the Crude Oil and Natural Gas Properties and
natural gas processing  facilities of the Issuer and/or  Restricted  Subsidiary,
except that for purposes of the Issuer's obligation to secure  substantially all
of its Oil & Gas Assets acquired after the Issue Date, the T-Gas Assets shall be
excluded.

                                       11
<PAGE>
         "Opinion of Counsel" means a written  opinion  addressed to the Trustee
from legal counsel who is reasonably  acceptable to the Trustee  complying  with
the requirements of Sections 10.04 and 10.05, as they relate to the giving of an
Opinion of Counsel.

         "Paying  Agent" has the meaning  provided in Section 2.03, and includes
any additional Paying Agent.

         "Payment Restriction" shall have the meaning set forth in Section 4.13.

         "Permitted  Indebtedness"  means,  without  duplication,  each  of  the
following:  (a)  Indebtedness  under the Notes,  the Exchange Notes, the Private
Exchange  Notes,  if any,  this  Indenture,  the  Guarantees  and  the  Security
Documents;  (b)  Interest  Swap  Obligations  of  the  Issuer  or  a  Restricted
Subsidiary  covering  Indebtedness  of the  Issuer  or  any  of  its  Restricted
Subsidiaries; provided, however, that such Interest Swap Obligations are entered
into to protect the Issuer and its Restricted  Subsidiaries from fluctuations in
interest rates on Indebtedness incurred in accordance with this 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; (c) Indebtedness of a Restricted Subsidiary to the Issuer or
to a Wholly Owned Restricted Subsidiary for so long as such Indebtedness is held
by the Issuer or a Wholly Owned Restricted  Subsidiary,  in each case subject to
no Lien held by a Person  other  than the  Issuer or a Wholly  Owned  Restricted
Subsidiary;  provided, however, that if as of any date any Person other than the
Issuer  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;  (d)  Indebtedness  of the Issuer 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  Issuer  to  any  Wholly  Owned  Restricted
Subsidiary  that is not a Subsidiary  Guarantor is unsecured  and  subordinated,
pursuant  to a  written  agreement,  to  the  Issuer's  obligations  under  this
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 Issuer;  (e)
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;  (f)  Indebtedness  of the  Issuer  or any of its
Restricted Subsidiaries  represented by letters of credit for the account of the
Issuer 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;
(g) Refinancing  Indebtedness;  (h) Capitalized  Lease Obligations of the Issuer
outstanding on the Issue Date; (i)  Capitalized  Lease  Obligations and Purchase
Money  Indebtedness of the Issuer or any of its Restricted  Subsidiaries  not to
exceed  $5,000,000  at  any  one  time  outstanding;   (j)  Permitted  Operating
Obligations;  (k)  Obligations  arising in connection with Crude Oil and Natural
Gas Hedge Agreements of the Issuer or a Restricted Subsidiary;  (l) Non-Recourse
Indebtedness;  (m) 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 Issuer 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;  (n) additional  Indebtedness of the Issuer or
any of its Restricted  Subsidiaries in an aggregate principal amount at any time
outstanding not to exceed the greater of (i) $5,000,000 or (ii) 2.5% of Adjusted
Consolidated  Net Tangible  Assets;  and (o)  Indebtedness,  including,  but not
limited to, the Series D Notes, outstanding on the Issue Date (to the extent not
repaid with the proceeds of the sale of the Notes).

         "Permitted  Industry  Investments"  means:  (a)  capital  expenditures,
including,  without limitation,  acquisitions of Issuer Properties and interests
therein;  (b) (i) 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 (ii) exchanges of Issuer Properties for
other Issuer Properties of at least equivalent value as determined in good faith
by the Board of Directors of the Issuer;  and (c) Investments of operating funds
on behalf of co-owners of Crude Oil and Natural Gas  Properties of the Issuer or
the Subsidiaries pursuant to joint operating agreements.

                                       12
<PAGE>
         "Permitted  Investments"  means:  (a)  Investments by the Issuer 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  Issuer  or a  Restricted  Subsidiary  that is not  subject  to any  Payment
Restriction;  (b)  Investments  in  the  Issuer  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 Issuer's obligations under
the Notes and this Indenture; (c) investments in cash and Cash Equivalents;  (d)
Investments  made by the Issuer or its  Restricted  Subsidiaries  as a result of
consideration  received in connection with an Asset Sale made in compliance with
Section 4.16; and (e) Permitted Industry Investments.

         "Permitted Liens" means each of the following types of Liens: (a) Liens
arising under this Indenture or the Security  Documents;  (b) Liens securing the
Notes and the  Guarantees;  (c) 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 Issuer 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; (d) 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,  builders, 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;  (e) 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); (f) 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 Issuer or any of its Restricted
Subsidiaries;  (g) 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;  (h)
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; (i) Liens encumbering deposits made to
secure obligations arising from statutory, regulatory,  contractual, or warranty
requirements  of the  Issuer or any of its  Restricted  Subsidiaries,  including
rights of offset and set-off; (j) Liens securing Interest Swap Obligations which
Interest Swap  Obligations  relate to Indebtedness  that is otherwise  permitted
under  this  Indenture  and  Liens  securing  Crude  Oil and  Natural  Gas Hedge
Agreements;  (k) Liens on  pipeline  or  pipeline  facilities,  Hydrocarbons  or
properties  and  assets of the Issuer and its  Subsidiaries  which  arise out of
operation of law; (l) 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 Issuer and its Subsidiaries or otherwise
as are customary in the oil and gas business; (m) with respect to any Properties
and  assets of the Issuer  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 Issuer or any  Subsidiary  determines in good
faith to be necessary for the economic development of such Property; (n) any (i)
interest or title of a lessor or sublessor under any lease,  (ii) 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,  builders'  Liens, tax
Liens, and easements),  or (iii)  subordination of the interest of the lessee or
sublessee under such lease to any restrictions or encumbrance referred to in the
preceding  clause (ii); (o) 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 Issuer or any  Restricted  Subsidiary  on deposit with or in
possession  of such bank;  (p) Liens  securing  Non-recourse  Indebtedness;  (q)
judgment and attachment Liens not giving rise to an Event of Default;  (r) Liens
securing Acquired Indebtedness not to exceed $10,000,000 in the aggregate at any
one time  outstanding  incurred  in  accordance  with  Section  4.12;  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 Issuer or a

                                       13
<PAGE>
Restricted   Subsidiary  and  were  not  granted  in  connection   with,  or  in
anticipation of, the incurrence of such Acquired Indebtedness by the Issuer or a
Restricted Subsidiary and (ii) such Liens do not extend to or cover any property
or assets of the Issuer 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  Issuer  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 Issuer or a Restricted Subsidiary;  and (s) Liens existing on the Issue Date
(other than to the extent such Liens secure  Indebtedness  being repaid with the
proceeds  of the Notes) and Liens  securing  Refinancing  Indebtedness  which is
incurred to Refinance any Indebtedness  permitted under this Indenture and which
has been incurred in accordance with the provisions of this Indenture; provided,
however,  that with respect to such Liens that already secure such  Indebtedness
being  Refinanced,  such Liens (i) 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 (ii) do not extend to or
cover any new or additional  property or assets,  and with respect to such Liens
that are  newly  created,  (A) such  Liens  are  expressly  junior  to the Liens
securing the Notes,  (B) such  Refinancing  results in an  improvement  on a pro
forma basis in the Issuer's  Consolidated  EBITDA  Coverage  Ratio,  and (C) the
instruments  creating such Liens expressly subject the foreclosure rights of the
holders of the  Indebtedness  being Refinanced to a stand-still of not less than
179 days.

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

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

         "Physical Notes" has the meaning provided in Section 2.01.

         "Plan  of  Liquidation"  means,  with  respect  to any  Person,  a plan
(including  by  operation  of  law)  that  provides  for,  contemplates  or  the
effectuation   of  which  is  preceded  or   accompanied   by  (whether  or  not
substantially  contemporaneously)  (i) the  sale,  lease,  conveyance  or  other
disposition of all or  substantially  all of the assets of such Person otherwise
than as an entirety or substantially as an entirety and (ii) the distribution of
all or  substantially  all of the proceeds of such sale,  lease,  conveyance  or
other  disposition and all or substantially  all of the remaining assets of such
Person to holders of Capital Stock of such Person.

         "Pledge  Agreement"  means those certain Security  Agreements  (Pledge)
dated as of the Issue  Date  pursuant  to which the  Capital  Stock of Grey Wolf
owned by the Issuer and/or the Restricted  Subsidiaries of the Issuer is pledged
to the  Trustee  for the  benefit of the  Holders,  as the same may be  amended,
modified or supplemented from time to time.

         "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.

         "principal"  of  any  Indebtedness  (including  the  Notes)  means  the
principal  amount  of such  Indebtedness  plus  the  premium,  if  any,  on such
Indebtedness.

         "Private  Exchange Notes" has the meaning set forth in the Registration
Rights Agreement.

         "Private  Placement Legend" means the legend initially set forth on the
Notes in the form set forth in Section 2.15.

                                       14
<PAGE>
         "pro forma" means,  with respect to any calculation made or required to
be made pursuant to the terms of this  Indenture,  a  calculation  in accordance
with Article 11 of Regulation S-X under the Securities Act, as determined by the
Board of Directors of the Issuer in  consultation  with its  independent  public
accountants.

         "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.

         "Qualified  Institutional  Buyer"  or  "QIB"  shall  have  the  meaning
specified in Rule 144A under the Securities Act.

         "Record Date" means the Record Dates specified in the Notes.

         "Redemption  Date," when used with  respect to any Note to be redeemed,
means the date fixed for such  redemption  pursuant  to this  Indenture  and the
Notes.

         "Redemption  Price," when used with respect to any Note to be redeemed,
means the price fixed for such redemption,  including  principal and premium, if
any, pursuant to this Indenture and the Notes.

         "Reference Date" has the meaning set forth in Section 4.10.

         "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 Issuer or any
Restricted  Subsidiary of the Issuer of Indebtedness incurred in accordance with
Section 4.12 (other than  pursuant to clause (b),  (c), (d), (e), (f), (i), (j),
(k), (m) or (n) of the definition of Permitted Indebtedness),  in each case that
does not:  (1)  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  Issuer  and  its  Restricted   Subsidiaries  in  connection  with  such
Refinancing),  or (2) create  Indebtedness  with (A) a Weighted  Average Life to
Maturity  that is less  than  the  Weighted  Average  Life  to  Maturity  of the
Indebtedness  being  Refinanced or (B) a final  maturity  earlier than the final
maturity of the Indebtedness being Refinanced;  provided,  however,  that (a) if
such Indebtedness being Refinanced is Indebtedness of the Issuer or a Subsidiary
Guarantor,  then such Refinancing  Indebtedness shall be Indebtedness  solely of
the Issuer and/or such Subsidiary  Guarantor and (b) 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.

         "Registrar" has the meaning provided in Section 2.03.

         "Registration Rights Agreement" means the Registration Rights Agreement
dated the Issue Date between the Issuer and the Initial Purchaser.

         "Regulation S" means Regulation S under the Securities Act.

                                       15
<PAGE>
         "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).

         "Released Interests" has the meaning provided in Section 12.04.

         "Replacement Assets" has the meaning provided in Section 4.16.

         "Restricted Payment" shall have the meaning set forth in Section 4.10.

         "Restricted  Security"  has the  meaning  assigned to such term in Rule
144(a)(3) under the Securities Act; provided, however, that the Trustee shall be
entitled to request and conclusively  rely on an Opinion of Counsel with respect
to whether any Note constitutes a Restricted Security.

         "Restricted  Subsidiary" means any Subsidiary of the Issuer (including,
without  limitation,  Canadian Abraxas,  New Cache and Sandia) that has not been
designated  by the  Board of  Directors  of the  Issuer,  by a Board  Resolution
delivered  to the  Trustee,  as an  Unrestricted  Subsidiary  pursuant to and in
compliance  with Section 4.14.  Any such  designation  may be revoked by a Board
Resolution of the Issuer delivered to the Trustee,  subject to the provisions of
such Section.

         "Rule 144A" means Rule 144A under the Securities Act.

         "S&P" means Standard & Poor's Rating Services, a division of The McGraw
Hill Companies, Inc., and its successors.

         "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  Issuer or a  Restricted  Subsidiary  of any  Property,
whether  owned by the Issuer or any  Restricted  Subsidiary at the Issue Date or
later  acquired  which has been or is to be sold or transferred by the Issuer 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.

         "Sandia"  means the party named as such in the first  paragraph of this
Indenture  until  a  successor  replaces  it  pursuant  to  this  Indenture  and
thereafter such successor.

         "Securities Act" means the Securities Act of 1933, as amended,  and the
rules and regulations of the Commission promulgated thereunder.

         "Security  Documents" means,  collectively,  the Mortgages,  the Pledge
Agreement and all security  agreements,  mortgages,  deeds of trust,  collateral
assignments or other instruments  evidencing or creating any security  interests
in favor of the Trustee in all or any portion of the Collateral, in each case as
amended,  supplemented  or modified from time to time in  accordance  with their
terms and the terms of this Indenture.

         "Series D Notes"  means the  $275,000,000  112  Senior  Notes due 2004,
Series D of the Issuer and Canadian Abraxas.

         "Stated Maturity Date" means March 15, 2003.

         "Subordinated  Indebtedness"  means  Indebtedness  of the  Issuer  or a
Subsidiary  Guarantor that is  subordinated or junior in right of payment to the
Notes,  the  relevant  Guarantee  and the  Security  Documents,  as  applicable,
pursuant to a written agreement to that effect.

         "Subsidiary," with respect to any Person, means: (a) any corporation of
which the  outstanding  Capital  Stock  having at least a majority  of the votes

                                       16
<PAGE>
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 Canadian Abraxas,  New Cache,  Sandia and
each of the  Issuer's  Restricted  Subsidiaries  that in the  future  executes a
supplemental indenture in which such Restricted Subsidiary agrees to be bound by
the terms of this 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 this Indenture.

         "Surviving Entity" shall have the meaning set forth in Section 5.01.

         "T-Gas Assets" means (i) those certain oil and gas leasehold rights and
interests  in  Sweetwater  and  Carbon  Counties,  Wyoming,  conveyed  by  Dalen
Resources  Oil & Gas Co., as  assignor,  to Tgas  Investments,  L.L.C.,  by that
certain  Assignment of Oil and Gas Leases with Reservation of Production Payment
dated effective August 1, 1995, as amended,  the same interests being covered by
that  certain  Option to Purchase Oil and Gas  Interests  dated August 25, 1995,
between Tgas Investments, L.L.C., and Dalen Resources Oil & Gas Co., as amended,
said option now being held by the Issuer and/or Abraxas Wamsutter L.P.; and (ii)
those  certain  Credit  Payments  respecting  tax  credits  to be  made  by Tgas
Investments,  L.L.C. to Dalen  Resources Oil & Gas Co. in that certain  Purchase
and Sale Agreement  dated August 1, 1995, as amended,  evidenced by a Promissory
Note (Recourse) dated effective August 25, 1995, from Tgas Investments,  L.L.C.,
to Dalen  Resources  Oil & Gas Co.,  as  renewed  and  amended,  now held by the
Issuer.

         "TIA" means the Trust Indenture Act of 1939 (15 U.S.C. " 77aaa-77bbbb),
as  amended,  as in effect on the date of this  Indenture,  except as  otherwise
provided in Section 9.03.

         "Trust  Officer"  means any  officer or  assistant  officer  within the
Corporate  Trust Office of the Trustee (or any  successor  group of the Trustee)
assigned by the Trustee or successor Trustee to administer this Indenture, or in
the case of a successor trustee, an officer assigned to the department, division
or group performing the corporation trust work of such successor and assigned to
administer this Indenture.

         "Trustee"  means  the  party  named as such in this  Indenture  until a
successor replaces it in accordance with the provisions of Article Seven of this
Indenture and thereafter means such successor.

         "Trust  Moneys"  means  all cash or Cash  Equivalents  received  by the
Trustee:  (a) upon the release of Collateral from the Lien of this Indenture and
the Security Documents,  including  investment earnings thereon; or (b) pursuant
to the provisions of any Mortgage; or (c) as proceeds of any other sale or other
disposition  of all or any part of the Collateral by or on behalf of the Trustee
or any collection,  recovery, receipt,  appropriation or other realization of or
from all or any part of the Collateral  pursuant to this Indenture or any of the
Security Documents or otherwise;  or (d) for application under this Indenture as
provided for in this Indenture or the Security  Documents,  or whose disposition
is not elsewhere  specifically provided for in this Indenture or in the Security
Documents;  provided,  however, that Trust Moneys shall not include any property
deposited with the Trustee pursuant to any Change of Control Offer, Net Proceeds
Offer or redemption or defeasance of any Notes.

         "U.S.   Government   Obligations"  mean  direct   obligations  of,  and
obligations guaranteed by, the United States of America for the payment of which
the full faith and credit of the United States of America is pledged.

         "U.S. Legal Tender" means such coin or currency of the United States of
America  as at the time of  payment  shall be legal  tender  for the  payment of
public and private debts.

         "Unrestricted Subsidiary" means any Subsidiary of the Issuer designated
as such pursuant to and in compliance with Section 4.14; provided, however, that
Unrestricted  Subsidiaries shall initially include Western and Grey Wolf, to the
extent,  if any,  it now or  hereafter  constitutes  a  "Subsidiary".  Any  such
designation may be revoked by a Board  Resolution of the Issuer delivered to the
Trustee, subject to the provisions of such Section 4.14.

                                       17
<PAGE>
         "Valuation Date" has the meaning provided in Section 12.04.

         "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.

         "Western"  means  Western  Associated  Energy   Corporation,   a  Texas
Corporation.

         "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 Issuer or another Wholly Owned Restricted
Subsidiary.

         SECTION 1.02.  Incorporation by Reference of TIA.

         Whenever  this  Indenture  refers  to a  provision  of  the  TIA,  such
provision is  incorporated  by reference in, and made a part of, this Indenture.
The following TIA terms used in this Indenture have the following meanings:

         "indenture securities" means the Notes.

         "indenture security holder" means a Holder.

         "indenture to be qualified" means this Indenture.

         "indenture trustee" or "institutional trustee" means the Trustee.

         "obligor" on the indenture  securities means the Issuer, any Subsidiary
Guarantor or any other obligor on the Notes.

         All other TIA terms used in this Indenture that are defined by the TIA,
defined by TIA reference to another  statute or defined by  Commission  rule and
not otherwise defined herein have the meanings assigned to them therein.

         SECTION 1.03.  Rules of Construction.

         Unless the context otherwise requires:

                  (1)      a term has the meaning assigned to it;

                  (2) an accounting  term not otherwise  defined has the meaning
         assigned to it in accordance with GAAP of any date of determination;

                  (3)      "or" is not exclusive;

                  (4) words in the singular include the plural, and words in the
plural include the singular;

                  (5) "herein," "hereof" and other words of similar import refer
         to this Indenture as a whole and not to any particular Article, Section
         or other subdivision; and

                  (6) any reference to a statute,  law or regulation  means that
         statute,  law or  regulation as amended and in effect from time to time
         and  includes  any  successor  statute,  law or  regulation;  provided,
         however,  that any  reference  to the  Bankruptcy  Law  shall  mean the
         Bankruptcy Law as applicable to the relevant case.

                                       18
<PAGE>
                                   ARTICLE TWO

                                    THE NOTES

         SECTION 2.01.  Principal Amount; Form and Dating.

         (a)      Principal Amount.

         The aggregate principal amount of Notes which may be issued,  executed,
authenticated and outstanding under this Indenture is $63,500,000.

         (b)      Form and Dating.

         The  Initial  Notes and the  Trustee's  certificate  of  authentication
relating  thereto shall be  substantially  in the form of Exhibit A hereto.  The
Exchange Notes and the Trustee's certificate of authentication  relating thereto
shall be  substantially  in the form of  Exhibit  B  hereto.  The Notes may have
notations,  legends or  endorsements  required by law,  stock  exchange  rule or
depository  rule or usage.  The Issuer and the Trustee shall approve the form of
the Notes and any notation,  legend or endorsement  on them.  Each Note shall be
dated the date of its  issuance  and shall show the date of its  authentication.
Each Note shall have an executed Guarantee endorsed thereon substantially in the
form of Exhibit E hereto.

         The terms and  provisions  contained  in the Notes,  annexed  hereto as
Exhibits A and B, shall  constitute,  and are hereby  expressly  made, a part of
this Indenture  and, to the extent  applicable,  the Issuer and the Trustee,  by
their  execution and delivery of this  Indenture,  expressly agree to such terms
and provisions and to be bound thereby.

         Notes offered and sold in reliance on Rule 144A, Notes offered and sold
to institutional  "accredited investors" (as defined in Rule 501(a)(1), (2), (3)
or (7) under the  Securities  Act) and Notes  offered  and sold in  reliance  on
Regulation  S shall be  issued  initially  in the form of one or more  permanent
global Notes in registered form,  substantially in the form set forth in Exhibit
A (the  "Global  Notes"),  deposited  with the  Trustee,  as  custodian  for the
Depository,  duly  executed  by the Issuer  (and  having an  executed  Guarantee
endorsed thereon) and  authenticated by the Trustee as hereinafter  provided and
shall bear the legend set forth in Section 2.15. The aggregate  principal amount
of the  Global  Notes  may  from  time to  time be  increased  or  decreased  by
adjustments made on the records of the Trustee, as custodian for the Depository,
as hereinafter provided. Notes issued in exchange for interests in a Global Note
pursuant  to Section  2.16 may be issued in the form of  permanent  certificated
Notes in registered form in  substantially  the form set forth in Exhibit A (the
"Physical Notes").

         SECTION 2.02. Execution and Authentication; Aggregate Principal Amount.

         Two  Officers,  or an Officer and an Assistant  Secretary of the Issuer
and each  Subsidiary  Guarantor,  shall sign,  or one Officer shall sign and one
Officer or an Assistant  Secretary  (each of whom shall, in each case, have been
duly authorized by all requisite  corporate  actions) shall attest to, the Notes
for the Issuer and the  Guarantees  for the  Subsidiary  Guarantors by manual or
facsimile signature.

         If an Officer or Assistant  Secretary whose signature is on a Note or a
Guarantee  was an Officer or Assistant  Secretary at the time of such  execution
but  no  longer   holds  that  office  or  position  at  the  time  the  Trustee
authenticates the Note, the Note shall nevertheless be valid.

         A Note shall not be valid until an authorized  signatory of the Trustee
manually  signs the  certificate  of  authentication  on the Note. The signature
shall be  conclusive  evidence that the Note has been  authenticated  under this
Indenture.

         The Trustee upon receipt of a written order in the form of an Officers'
Certificate  shall  authenticate  (i) Initial  Notes for  original  issue in the
aggregate  principal  amount not to exceed  $63,500,000  and (ii) Exchange Notes


                                       19
<PAGE>

from time to time for issue  only in  exchange  for a like  principal  amount of
Initial Notes or (iii) Private Exchange Notes, in each case upon a written order
of the Issuer in the form of an Officers'  Certificate of the Issuer.  Each such
written order shall specify the amount of Notes to be authenticated and the date
on which the Notes are to be authenticated,  whether the Notes are to be Initial
Notes or Exchange Notes and whether the Notes are to be issued as Physical Notes
or Global Notes or such other information as the Trustee may reasonably request.
In addition, with respect to authentication pursuant to clauses (ii) or (iii) of
the first  sentence of this  paragraph,  the first such  written  order from the
Issuer  shall be  accompanied  by an  Opinion of Counsel of the Issuer in a form
reasonably satisfactory to the Trustee stating that the issuance of the Exchange
Notes or Private  Exchange  Notes,  as the case may be, does not give rise to an
Event of Default,  complies with this Indenture and has been duly  authorized by
the Issuer. The aggregate  principal amount of Notes outstanding at any time may
not exceed $63,500,000, except as provided in Sections 2.07 and 2.08.

         The Trustee may appoint an  authenticating  agent (the  "Authenticating
Agent")  reasonably  acceptable  to the  Issuer to  authenticate  Notes.  Unless
otherwise provided in the appointment,  an Authenticating Agent may authenticate
Notes  whenever  the Trustee  may do so. Each  reference  in this  Indenture  to
authentication  by the Trustee includes  authentication  by such  Authenticating
Agent. An Authenticating  Agent has the same rights as an Agent to deal with the
Issuer or with any Affiliate of the Issuer.

         The Notes  shall be  issuable in fully  registered  form only,  without
coupons, in denominations of $1,000 and any integral multiple thereof.


         SECTION 2.03.  Registrar and Paying Agent.

         The Issuer  shall  maintain an office or agency  where (a) Notes may be
presented  or  surrendered   for   registration  of  transfer  or  for  exchange
("Registrar")  which  shall be the  Corporate  Trust  Office,  (b)  Notes may be
presented or surrendered for payment  ("Paying  Agent") which shall initially be
the Norwest Corporate Trust c/o The Depository Trust Company,  First Floor, TADS
Department,  55 Water  Street,  New York,  New York  10041,  and (c) notices and
demands to or upon the Issuer in respect of the Notes and this  Indenture  or to
or upon  the  Subsidiary  Guarantors  in  respect  of their  Guarantee  and this
Indenture  may be served  which  shall be the office of the Paying  Agent or the
Corporate Trust Office.  The Registrar shall keep a register of the Notes and of
their  transfer  and  exchange.  The Issuer,  upon prior  written  notice to the
Trustee,  may have one or more  co-Registrars  and one or more additional Paying
Agents  reasonably  acceptable  to the  Trustee.  The  Issuer may act as its own
Paying Agent,  except that for the purposes of payments on the Notes pursuant to
Sections  4.15 and 4.16,  neither the Issuer nor any Affiliate of the Issuer may
act as Paying Agent;  provided that any such  co-Registrar or Paying Agent shall
deliver a certificate  to the Trustee  certifying  that it agrees to perform its
duties in accordance with the procedures established by the Trustee and with the
terms of this Indenture.

         The Issuer shall enter into an  appropriate  agency  agreement with any
Agent not a party to this  Indenture,  which  agreement  shall  incorporate  the
provisions of the TIA and implement the provisions of this Indenture that relate
to such Agent. The Issuer shall notify the Trustee,  in advance, of the name and
address of any such Agent. If the Issuer fails to maintain a Registrar or Paying
Agent, or fail to give the foregoing notice, the Trustee shall act as such.

         The Issuer and the Subsidiary  Guarantors initially appoint the Trustee
as  Registrar,  Paying  Agent and agent for  service of demands  and  notices in
connection with the Notes and the Guarantees, until such time as the Trustee has
resigned or a successor has been  appointed.  Any of the  Registrar,  the Paying
Agent or any other agent may resign upon 30 days' notice to the Issuer.

         SECTION 2.04.  Paying Agent To Hold Assets in Trust.

         The Issuer  shall  require  each Paying Agent other than the Trustee to
agree in writing  that such Paying  Agent shall hold in trust for the benefit of
the Holders or the  Trustee all assets held by the Paying  Agent for the payment
of principal of, premium, if any, or interest on, the Notes (whether such assets
have been  distributed  to it by the Issuer or any other  obligor on the Notes),
and the Issuer and the Paying  Agent shall  notify the Trustee of any Default by
the Issuer (or any other obligor on the Notes) in making any such  payment.  The
Issuer at any time may require a Paying Agent to  distribute  all assets held by
it to the Trustee and  account for any assets  disbursed  and the Trustee may at

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any time during the continuance of any payment Default,  upon written request to
a Paying Agent, require such Paying Agent to distribute all assets held by it to
the Trustee and to account for any assets distributed.  Upon distribution to the
Trustee of all assets that shall have been delivered by the Issuer to the Paying
Agent, the Paying Agent shall have no further liability for such assets.

         SECTION 2.05.  Holder Lists.

         The  Trustee  shall  preserve  in as  current  a form as is  reasonably
practicable  the most recent list  available to it of the names and addresses of
the Holders.  If the Trustee is not the  Registrar,  the Issuer shall furnish or
cause the  Registrar  to furnish to the  Trustee  before each Record Date and at
such other  times as the  Trustee  may request in writing a list as of such date
and in such  form  as the  Trustee  may  reasonably  require  of the  names  and
addresses  of the  Holders,  which list may be  conclusively  relied upon by the
Trustee.

         SECTION 2.06.  Transfer and Exchange.

         When Notes are  presented  to the  Registrar or a  co-Registrar  with a
request to register the transfer of such Notes or to exchange  such Notes for an
equal principal amount of Notes or other authorized denominations, the Registrar
or co-Registrar shall register the transfer or make the exchange as requested if
its requirements for such transaction are met; provided, however, that the Notes
presented or surrendered for  registration of transfer or exchange shall be duly
endorsed or accompanied by a written instrument of transfer in form satisfactory
to the Issuer,  the Trustee and the Registrar or co-Registrar,  duly executed by
the  Holder  thereof or his  attorney  duly  authorized  in  writing.  To permit
registration  of  transfers  and  exchanges,  the Issuer  shall  execute and the
Trustee shall  authenticate  Notes and the Subsidiary  Guarantors  shall execute
Guarantees  thereon at the  Registrar's or  co-Registrar's  request.  No service
charge  shall be made for any  registration  of  transfer or  exchange,  but the
Issuer may require payment of a sum sufficient to cover any transfer tax, fee or
similar governmental charge payable in connection therewith (other than any such
transfer  taxes  or  similar  governmental  charge  payable  upon  exchanges  or
transfers  pursuant to Sections 2.10,  3.04,  4.15, 4.16 or 9.05, in which event
the Issuer shall be responsible for the payment of such taxes).

         The  Registrar  or  co-Registrar  shall not be required to register the
transfer of or exchange of any Note (i) during a period beginning at the opening
of business 15 days  before the mailing of a notice of  redemption  of Notes and
ending at the close of business on the day of such mailing and (ii) selected for
redemption in whole or in part pursuant to Article Three,  except the unredeemed
portion of any Note being redeemed in part.

         Any  Holder  of a  beneficial  interest  in a  Global  Note  shall,  by
acceptance of such Global Note, agree that transfers of beneficial  interests in
such Global Note may be effected only through a book entry system  maintained by
the  Holder  of such  Global  Note  (or its  agent),  and  that  ownership  of a
beneficial  interest  in the Note shall be required  to be  reflected  in a book
entry system.

         SECTION 2.07.  Replacement Notes.

         If a mutilated Note is surrendered to the Trustee or if the Holder of a
Note  claims  that the Note has been lost,  destroyed  or  wrongfully  taken and
submits evidence thereof satisfactory to the Trustee, the Issuer shall issue and
the  Trustee,  upon  receipt  of a  written  order in the  form of an  Officers'
Certificate, shall authenticate a replacement Note and the Subsidiary Guarantors
shall  execute a Guarantee  thereon if the  Trustee's  requirements  are met. If
required  by the Trustee or the Issuer,  such Holder must  provide an  indemnity
bond or other  indemnity  of  reasonable  tenor,  sufficient  in the  reasonable
judgment of the Issuer,  the Subsidiary  Guarantors and the Trustee,  to protect
the Issuer,  the Subsidiary  Guarantors,  the Trustee or any Agent from any loss
which any of them may suffer if a Note is replaced. Every replacement Note shall
constitute an additional obligation of the Issuer and the Subsidiary Guarantors.

                                       21
<PAGE>
         SECTION 2.08.  Outstanding Notes.

         Notes  outstanding  at any  time  are  all the  Notes  that  have  been
authenticated  by the Trustee except those canceled by it, those delivered to it
for cancellation and those described in this Section as not outstanding. Subject
to the  provisions  of  Section  2.09,  a Note does not cease to be  outstanding
because the Issuer or any of its Affiliates holds the Note.

         If a Note is replaced  pursuant to Section 2.07 (other than a mutilated
Note  surrendered  for  replacement),  it ceases to be  outstanding  unless  the
Trustee  receives proof  satisfactory  to it that the replaced Note is held by a
bona fide purchaser. A mutilated Note ceases to be outstanding upon surrender of
such Note and replacement thereof pursuant to Section 2.07.

         If on a Redemption  Date or the Maturity  Date,  the Paying Agent holds
U.S. Legal Tender or U.S.  Government  Obligations  sufficient to pay all of the
principal,  premium,  if any, and interest due on the Notes payable on that date
and is not prohibited from paying such money to the Holders thereof  pursuant to
the terms of this  Indenture,  then on and after that date such  Notes  shall be
deemed not to be outstanding and interest on them shall cease to accrue.

         SECTION 2.09.  Treasury Notes.

         In determining  whether the Holders of the required principal amount of
Notes have concurred in any direction, waiver, consent or notice, Notes owned by
the Issuer or an Affiliate of the Issuer shall be  considered as though they are
not outstanding, except that for the purposes of determining whether the Trustee
shall be protected  in relying on any such  direction,  waiver or consent,  only
Notes which a Trust Officer of the Trustee  actually knows are so owned shall be
so considered.  The Issuer shall notify the Trustee, in writing,  when it or, to
its knowledge, any of its Affiliates repurchases or otherwise acquires Notes, of
the  aggregate  principal  amount  of such  Notes so  repurchased  or  otherwise
acquired and such other  information as the Trustee may  reasonably  request and
the Trustee shall be entitled to rely thereon.

        SECTION 2.10.  Temporary Notes.

         Until definitive  Notes are ready for delivery,  the Issuer may prepare
and the Trustee  shall  authenticate  temporary  Notes upon receipt of a written
order of the  Issuer  in the form of an  Officers'  Certificate.  The  Officers'
Certificate  shall specify the amount of temporary Notes to be authenticated and
the date on which the temporary Notes are to be  authenticated.  Temporary Notes
shall be  substantially  in the form of definitive Notes but may have variations
that the Issuer considers appropriate for temporary Notes and so indicate in the
Officers' Certificate. Without unreasonable delay, the Issuer shall prepare, the
Trustee  shall   authenticate  and  the  Subsidiary   Guarantors  shall  execute
Guarantees on, upon receipt of a written order of the Issuer pursuant to Section
2.02, definitive Notes in exchange for temporary Notes.

         SECTION 2.11.  Cancellation.

         The  Issuer  at  any  time  may  deliver   Notes  to  the  Trustee  for
cancellation.  The  Registrar  and the Paying Agent shall forward to the Trustee
any Notes surrendered to them for transfer, exchange or payment. The Trustee, or
at the direction of the Trustee,  the Registrar or the Paying Agent,  and no one
else, shall cancel and, at the written  direction of the Issuer,  shall dispose,
in its  customary  manner,  of all Notes  surrendered  for  transfer,  exchange,
payment or  cancellation.  Subject to Section 2.07, the Issuer may not issue new
Notes  to  replace  Notes  that it has  paid or  delivered  to the  Trustee  for
cancellation.  If the Issuer shall  acquire any of the Notes,  such  acquisition
shall  not  operate  as  a  redemption  or  satisfaction  of  the   Indebtedness
represented  by such  Notes  unless  and until the same are  surrendered  to the
Trustee for cancellation pursuant to this Section 2.11.

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<PAGE>
         SECTION 2.12.  Defaulted Interest.

         The Issuer will pay interest on overdue  principal from time to time on
demand at the rate of interest then borne by the Notes. The Issuer shall, to the
extent lawful, pay interest on overdue  installments of interest (without regard
to any  applicable  grace  periods)  from  time to time on demand at the rate of
interest  then borne by the Notes.  Interest  will be computed on the basis of a
360-day year  comprised of twelve 30-day  months,  and, in the case of a partial
month, the actual number of days elapsed.

         If the Issuer  defaults in a payment of interest on the Notes, it shall
pay the defaulted interest,  plus (to the extent lawful) any interest payable on
the defaulted  interest,  to the Persons who are Holders on a subsequent special
record date, which special record date shall be the fifteenth day next preceding
the date fixed by the Issuer for the payment of  defaulted  interest or the next
succeeding  Business  Day if such date is not a Business  Day.  The Issuer shall
notify the Trustee in writing of the amount of defaulted interest proposed to be
paid on each Note and the date of the  proposed  payment  (a  "Default  Interest
Payment  Date"),  and at the same time the Issuer shall deposit with the Trustee
an amount of money equal to the aggregate  amount proposed to be paid in respect
of such  defaulted  interest  or shall  make  arrangements  satisfactory  to the
Trustee for such deposit on or prior to the date of the proposed  payment,  such
money when deposited to be held in trust for the benefit of the Persons entitled
to such defaulted interest as provided in this Section; provided,  however, that
in no event shall the Issuer  deposit  monies  proposed to be paid in respect of
defaulted  interest  later than 11:00  a.m.  New York City time of the  proposed
Default  Interest  Payment Date. At least 15 days before the subsequent  special
record date, the Issuer shall mail (or cause to be mailed) to each Holder, as of
a recent date selected by the Issuer,  with a copy to the Trustee, a notice that
states the subsequent special record date, the Default Interest Payment Date and
the  amount of  defaulted  interest,  and  interest  payable  on such  defaulted
interest, if any, to be paid.  Notwithstanding the foregoing, any interest which
is paid  prior to the  expiration  of the  30-day  period  set forth in  Section
6.01(a) shall be paid to Holders as of the regular  record date for the Interest
Payment  Date  for  which  interest  has  not  been  paid.  Notwithstanding  the
foregoing,  the Issuer may make payment of any  defaulted  interest in any other
lawful manner not inconsistent with the requirements of any securities  exchange
on which the Notes may be listed,  and upon such  notice as may be  required  by
such exchange.

         SECTION 2.13.  CUSIP Number.

         The Issuer in issuing the Notes may use a "CUSIP"  number,  and, if so,
the Trustee shall use the CUSIP number in notices of redemption or exchange as a
convenience to Holders;  provided,  however,  that no  representation  is hereby
deemed to be made by the Trustee as to the  correctness or accuracy of the CUSIP
number  printed in the notice or on the Notes,  and that  reliance may be placed
only on the other identification  numbers printed on the Notes. The Issuer shall
promptly notify the Trustee in writing of any change in the CUSIP number.

         SECTION 2.14.  Deposit of Monies.

         Prior to 11:00 a.m. New York City time on each  Interest  Payment Date,
Maturity Date,  Redemption Date, Change of Control Payment Date and Net Proceeds
Offer Payment  Date,  the Issuer shall have  deposited  with the Paying Agent in
immediately  available funds money sufficient to make cash payments, if any, due
on such Interest Payment Date, Maturity Date, Redemption Date, Change of Control
Payment  Date and Net  Proceeds  Offer  Payment  Date,  as the case may be, in a
timely  manner which permits the Paying Agent to remit payment to the Holders on
such Interest Payment Date,  Maturity Date,  Redemption Date,  Change of Control
Payment Date and Net Proceeds Offer Payment Date, as the case may be.

                                       23
<PAGE>
         SECTION 2.15.  Restrictive Legends.

         Each  Global  Note and  Physical  Note that  constitutes  a  Restricted
Security shall bear the following legend (the "Private Placement Legend") on the
face thereof  until after the third  anniversary  of the later of the Issue Date
and the last date on which the  Issuer or any  Affiliate  of the  Issuer was the
owner of such Note (or any predecessor security) (or such shorter period of time
as permitted by Rule 144(k) under the Securities Act or any successor  provision
thereunder)  (or  such  longer  period  of time  as may be  required  under  the
Securities Act or applicable state securities laws in the opinion of counsel for
the Issuer, unless otherwise agreed by the Issuer and the Holder thereof):

         THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE U.S.  SECURITIES ACT OF
         1933, AS AMENDED (THE "SECURITIES ACT"), AND,  ACCORDINGLY,  MAY NOT BE
         OFFERED OR SOLD  WITHIN THE UNITED  STATES OR TO, OR FOR THE ACCOUNT OR
         BENEFIT OF, U.S.  PERSONS EXCEPT AS SET FORTH BELOW. BY ITS ACQUISITION
         HEREOF,  THE  HOLDER  (1)  REPRESENTS  THAT  (A)  IT  IS  A  "QUALIFIED
         INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT)
         OR (B) IT IS AN  "ACCREDITED  INVESTOR" (AS DEFINED IN RULE  501(a)(1),
         (2), (3), OR (7) UNDER THE SECURITIES ACT), (AN "ACCREDITED  INVESTOR")
         OR (C) IT IS NOT A U.S.  PERSON AND IS  ACQUIRING  THIS  SECURITY IN AN
         OFFSHORE  TRANSACTION IN COMPLIANCE  WITH RULE 904 UNDER THE SECURITIES
         ACT,  (2) AGREES THAT IT WILL NOT WITHIN TWO YEARS  AFTER THE  ORIGINAL
         ISSUANCE OF THIS  SECURITY  RESELL OR OTHERWISE  TRANSFER THIS SECURITY
         EXCEPT (A) TO THE ISSUER THEREOF OR ANY SUBSIDIARY THEREOF,  (B) INSIDE
         THE UNITED STATES TO A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH
         RULE 144A UNDER THE SECURITIES  ACT, (C) INSIDE THE UNITED STATES TO AN
         ACCREDITED  INVESTOR THAT,  PRIOR TO SUCH  TRANSFER,  FURNISHES (OR HAS
         FURNISHED  ON ITS  BEHALF  BY A U.S.  BROKER-DEALER)  TO THE  TRUSTEE A
         SIGNED  LETTER  CONTAINING  CERTAIN   REPRESENTATIONS   AND  AGREEMENTS
         RELATING TO THE  RESTRICTIONS ON TRANSFER OF THIS SECURITY (THE FORM OF
         WHICH LETTER CAN BE OBTAINED FROM THE TRUSTEE FOR THIS  SECURITY),  (D)
         OUTSIDE THE UNITED STATES IN AN OFFSHORE TRANSACTION IN COMPLIANCE WITH
         RULE 904  UNDER  THE  SECURITIES  ACT  (PROVIDED  THAT ANY SUCH SALE OR
         TRANSFER IN CANADA OR TO OR FOR THE BENEFIT OF A CANADIAN RESIDENT MUST
         BE  EFFECTED   PURSUANT  TO  AN  EXEMPTION   FROM  THE  PROSPECTUS  AND
         REGISTRATION  REQUIREMENTS UNDER APPLICABLE  CANADIAN SECURITIES LAWS),
         (E) PURSUANT TO THE EXEMPTION  FROM  REGISTRATION  PROVIDED BY RULE 144
         UNDER  THE  SECURITIES  ACT  (IF  AVAILABLE),  OR  (F)  PURSUANT  TO AN
         EFFECTIVE  REGISTRATION  STATEMENT  UNDER  THE  SECURITIES  ACT AND (3)
         AGREES  THAT IT WILL  GIVE TO EACH  PERSON  TO WHOM  THIS  SECURITY  IS
         TRANSFERRED  A NOTICE  SUBSTANTIALLY  TO THE EFFECT OF THIS LEGEND.  IN
         CONNECTION  WITH ANY TRANSFER OF THIS  SECURITY  WITHIN TWO YEARS AFTER
         THE ORIGINAL ISSUANCE OF THIS SECURITY,  IF THE PROPOSED  TRANSFEREE IS
         AN  ACCREDITED  INVESTOR,  THE  HOLDER  MUST,  PRIOR TO SUCH  TRANSFER,
         FURNISH  TO THE  TRUSTEE  AND THE  ISSUER  SUCH  CERTIFICATIONS,  LEGAL
         OPINIONS OR OTHER INFORMATION AS EITHER OF THEM MAY REASONABLY  REQUIRE
         TO CONFIRM  THAT SUCH  TRANSFER IS BEING MADE  PURSUANT TO AN EXEMPTION
         FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS
         OF  THE   SECURITIES   ACT.  AS  USED  HEREIN,   THE  TERMS   "OFFSHORE
         TRANSACTION,"  "UNITED STATES" AND "U.S. PERSON" HAVE THE MEANING GIVEN
         TO THEM BY REGULATION S UNDER THE SECURITIES ACT.

         Each  Global  Note  shall  also bear the  following  legend on the face
thereof:

         UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR  SECURITIES IN
         DEFINITIVE FORM, THIS SECURITY MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE
         BY THE  DEPOSITORY  TO A  NOMINEE  OF THE  DEPOSITORY,  OR BY ANY  SUCH

                                       24
<PAGE>
         NOMINEE  OF THE  DEPOSITORY,  OR BY THE  DEPOSITORY  OR NOMINEE OF SUCH
         SUCCESSOR DEPOSITORY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITORY OR A
         NOMINEE  OF SUCH  SUCCESSOR  DEPOSITORY.  UNLESS  THIS  CERTIFICATE  IS
         PRESENTED  BY AN  AUTHORIZED  REPRESENTATIVE  OF THE  DEPOSITORY  TRUST
         COMPANY, A NEW YORK CORPORATION ("DTC"), TO THE ISSUER OR ITS AGENT FOR
         REGISTRATION  OF  TRANSFER,  EXCHANGE OR PAYMENT,  AND ANY  CERTIFICATE
         ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS IS
         REQUESTED  BY AN  AUTHORIZED  REPRESENTATIVE  OF DTC (AND  ANY  PAYMENT
         HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY
         AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE
         HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL  INASMUCH
         AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

         TRANSFERS  OF THIS GLOBAL  SECURITY  SHALL BE LIMITED TO  TRANSFERS  IN
         WHOLE,  BUT NOT IN PART,  TO  NOMINEES  OF CEDE & CO. OR TO A SUCCESSOR
         THEREOF OR SUCH  SUCCESSOR'S  NOMINEE AND TRANSFERS OF PORTIONS OF THIS
         GLOBAL  SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE  WITH
         THE RESTRICTIONS SET FORTH IN SECTION 2.17 OF THIS INDENTURE.

         SECTION 2.16.  Book-Entry Provisions for Global Security. 

         (a) The Global Notes  initially  shall (i) be registered in the name of
the  Depository  or the nominee of such  Depository,  (ii) be  delivered  to the
Trustee as custodian for such  Depository and (iii) bear legends as set forth in
Section 2.15.

         Members of, or participants in, the Depository  ("Agent Members") shall
have no rights  under this  Indenture  with  respect to any Global  Note held on
their behalf by the  Depository,  or the Trustee as its custodian,  or under the
Global Notes,  and the Depository may be treated by the Issuer,  the Trustee and
any Agent of the Issuer or the Trustee as the absolute owner of such Global Note
for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall
prevent the Issuer,  the Trustee or any Agent of the Issuer or the Trustee  from
giving  effect  to any  written  certification,  proxy  or  other  authorization
furnished by the  Depository or impair,  as between the Depository and its Agent
Members,  the  operation of customary  practices  governing  the exercise of the
rights of a Holder of any Note.

         (b)  Transfers of a Global Note shall be limited to transfers in whole,
but not in part, to the Depository, its successors or their respective nominees.
Interests of beneficial  owners in a Global Note may be transferred or exchanged
for Physical Notes in accordance with the rules and procedures of the Depository
and the  provisions  of Section  2.17.  In  addition,  Physical  Notes  shall be
transferred to all beneficial owners in exchange for their beneficial  interests
in a Global Note if (i) the Depository  notifies the Issuer that it is unwilling
or unable  to  continue  as  Depository  for the  Global  Notes and a  successor
depositary  is not appointed by the Issuer within 90 days of such notice or (ii)
an Event of  Default  has  occurred  and is  continuing  and the  Registrar  has
received a written request from the Depository to issue Physical Notes.

         (c) In  connection  with any  transfer  or exchange of a portion of the
beneficial  interest in a Global Note to beneficial owners pursuant to paragraph
(b),  the  Registrar  shall (if one or more  Physical  Notes  are to be  issued)
reflect on its books and records the date and a decrease in the principal amount
of such Global Note in an amount equal to the principal amount of the beneficial
interest in the Global Note to be transferred, and the Issuer shall execute, the
Subsidiary  Guarantors  shall  execute  Guarantees  on,  and the  Trustee  shall
authenticate and deliver, one or more Physical Notes of like tenor and amount.

         (d) In  connection  with  the  transfer  of an  entire  Global  Note to
beneficial owners pursuant to paragraph (b), such Global Note shall be deemed to
be  surrendered to the Trustee for  cancellation,  and the Issuer shall execute,
the  Subsidiary  Guarantors  shall  execute  Guarantees on and the Trustee shall

                                       25
<PAGE>
authenticate and deliver,  to each beneficial owner identified by the Depository
in exchange for its beneficial  interest in the Global Note, an equal  aggregate
principal amount of Physical Notes of authorized denominations.

         (e) Any Physical Note constituting a Restricted  Security  delivered in
exchange  for an  interest in a Global Note  pursuant  to  paragraph  (b) or (c)
shall,  except as otherwise provided by paragraphs  (a)(i)(x) and (c) of Section
2.17, bear the legend regarding transfer restrictions applicable to the Physical
Notes set forth in Section 2.15.

         (f) The  Holder  of a  Global  Note may  grant  proxies  and  otherwise
authorize  any  Person,  including  Agent  Members  and  Persons  that  may hold
interests  through Agent Members,  to take any action which a Holder is entitled
to take under this Indenture or the Notes.

         SECTION 2.17.  Special Transfer Provisions.

         (a)  Transfers  to  Non-QIB  Institutional   Accredited  Investors  and
Non-U.S.  Persons.  The  following  provisions  shall apply with  respect to the
registration  of any  proposed  transfer  of a Note  constituting  a  Restricted
Security to any Institutional  Accredited  Investor which is not a QIB or to any
Non-U.S. Person:

                    (i) the  Registrar  shall  register the transfer of any Note
         constituting a Restricted Security,  whether or not such Note bears the
         Private Placement  Legend,  if (x) the requested  transfer is after the
         second anniversary of the Issue Date (provided,  however,  that neither
         the Issuer  nor any  Affiliate  of the  Issuer has held any  beneficial
         interest in such Note, or portion  thereof,  at any time on or prior to
         the second  anniversary  of the Issue Date) or (y) (1) in the case of a
         transfer to an  Institutional  Accredited  Investor  which is not a QIB
         (excluding Non-U.S.  Persons), the proposed transferee has delivered to
         the  Registrar  a  certificate  substantially  in the form of Exhibit C
         hereto  or (2) in the case of a  transfer  to a  Non-U.S.  Person,  the
         proposed  transferor  has  delivered  to the  Registrar  a  certificate
         substantially in the form of Exhibit D hereto; and

                   (ii) if the proposed  transferor is an Agent Member holding a
         beneficial  interest in a Global Note, upon receipt by the Registrar of
         (x) the  certificate,  if any,  required by paragraph (i) above and (y)
         written  instructions given in accordance with the Depository's and the
         Registrar's procedures,

whereupon (a) the Registrar  shall reflect on its books and records the date and
(if the transfer does not involve a transfer of  outstanding  Physical  Notes) a
decrease in the  principal  amount of such Global Note in an amount equal to the
principal  amount  of  the  beneficial   interest  in  the  Global  Note  to  be
transferred,  and (b) the Issuer shall execute, the Subsidiary  Guarantors shall
execute the Guarantees on and the Trustee shall  authenticate and deliver one or
more Physical Notes of like tenor and amount.

         (b)  Transfers  to QIBs.  The  following  provisions  shall  apply with
respect to the  registration of any proposed  transfer of a Note  constituting a
Restricted Security to a QIB (excluding transfers to Non-U.S. Persons):

                    (i)  the  Registrar  shall  register  the  transfer  if such
         transfer is being made by a proposed transferor who has checked the box
         provided for on the form of Note stating,  or has otherwise advised the
         Issuer and the  Registrar  in  writing,  that the sale has been made in
         compliance  with the  provisions  of Rule 144A to a transferee  who has
         signed the certification  provided for on the form of Note stating,  or
         has otherwise advised the Issuer and the Registrar in writing,  that it
         is  purchasing  the Note for its own account or an account with respect
         to which it exercises  sole  investment  discretion and that it and any
         such  account is a QIB within  the  meaning of Rule 144A,  and is aware
         that  the  sale to it is  being  made in  reliance  on  Rule  144A  and
         acknowledges that it has received such information regarding the Issuer
         as it has  requested  pursuant  to Rule 144A or has  determined  not to
         request such  information  and that it is aware that the  transferor is
         relying  upon its  foregoing  representations  in  order  to claim  the
         exemption from registration provided by Rule 144A; and

                   (ii) if the proposed  transferee is an Agent Member,  and the
         Notes to be transferred  consist of Physical Notes which after transfer
         are to be evidenced  by an interest in a Global  Note,  upon receipt by
         the  Registrar of written  instructions  given in  accordance  with the

                                       26
<PAGE>
         Depository's  and  the  Registrar's  procedures,  the  Registrar  shall
         reflect  on its  books  and  records  the date and an  increase  in the
         principal  amount  of  such  Global  Note  in an  amount  equal  to the
         principal  amount  of the  Physical  Notes to be  transferred,  and the
         Trustee shall cancel the Physical Notes so transferred.

         (c)  Private   Placement  Legend.   Upon  the  transfer,   exchange  or
replacement  of Notes not bearing the Private  Placement  Legend,  the Registrar
shall  deliver  Notes that do not bear the Private  Placement  Legend.  Upon the
transfer, exchange or replacement of Notes bearing the Private Placement Legend,
the Registrar  shall deliver only Notes that bear the Private  Placement  Legend
unless (i) the requested  transfer is after the third  anniversary  of the Issue
Date (provided, however, that neither the Issuer nor any Affiliate of the Issuer
has held any beneficial  interest in such Note, or portion thereof,  at any time
prior to or on the  third  anniversary  of the  Issue  Date),  or (ii)  there is
delivered to the Registrar an Opinion of Counsel reasonably  satisfactory to the
Issuer and the  Trustee to the effect that  neither  such legend nor the related
restrictions  on transfer are required in order to maintain  compliance with the
provisions of the Securities Act.

         (d)  General.  By  its  acceptance  of any  Note  bearing  the  Private
Placement  Legend,  each Holder of such a Note  acknowledges the restrictions on
transfer of such Note set forth in this  Indenture and in the Private  Placement
Legend and  agrees  that it will  transfer  such Note only as  provided  in this
Indenture.

         The  Registrar  shall retain  copies of all letters,  notices and other
written  communications  received pursuant to Section 2.16 or this Section 2.17.
The Issuer shall have the right to inspect and make copies of all such  letters,
notices  or other  written  communications  at any  reasonable  time  during the
Registrar's  normal business hours upon the giving of reasonable  written notice
to the Registrar.

         (e)  Transfers  of  Notes  Held  by  Affiliates.  Any  certificate  (i)
evidencing a Note that has been transferred to an Affiliate of the Issuer within
three years after the Issue Date,  as evidenced by a notation on the  Assignment
Form for such  transfer or in the  representation  letter  delivered  in respect
thereof  or (ii)  evidencing  a Note that has been  acquired  from an  Affiliate
(other than by an  Affiliate) in a transaction  or a chain of  transactions  not
involving any public offering,  shall,  until three years after the last date on
which the Issuer or any  Affiliate  of the Issuer was an owner of such Note,  in
each case,  bear a legend in  substantially  the form set forth in Section  2.15
hereof,  unless  otherwise  agreed by the Issuer (with written notice thereof to
the Trustee).

         SECTION 2.18.  Liquidated Damages Under Registration Rights Agreement.

         Under  certain  circumstances,  the Issuer  shall be  obligated  to pay
certain liquidated damages to the Holders,  all as set forth in Section 4 of the
Registration Rights Agreement.  The terms thereof are hereby incorporated herein
by reference.

                                  ARTICLE THREE

                                   REDEMPTION

         SECTION 3.01.  Notices to Trustee.

         If the Issuer elects to redeem Notes pursuant to Section 3.03, it shall
notify the Trustee and the Paying  Agent in writing of the  Redemption  Date and
the principal amount of the Notes to be redeemed.

         The Issuer shall give each notice provided for in this Section 3.01 not
less than 5, but not more than 30, days (unless a shorter notice period shall be
satisfactory  to the Trustee,  as evidenced in a writing signed on behalf of the
Trustee) before the intended  mailing date of the Notice of Redemption  relating
thereto,  together with an Officers'  Certificate  stating that such  redemption
shall comply with the conditions contained herein and in the Notes.

         SECTION 3.02.  Selection of Notes To Be Redeemed.

                                       27
<PAGE>
         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 in accordance with the provisions of Section 3.04. 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  Issuer  has  deposited  with  the  Paying  Agent  for the  Notes  funds  in
satisfaction of the applicable Redemption Price.

         SECTION 3.03.  Optional Redemption.

         The Notes will be redeemable,  at the Issuer's option,  in whole at any
time or in part from time to time,  on and after March 15, 2001 at the following
Redemption  Prices (expressed as percentages of the principal amount thereof) if
redeemed during the twelve-month  period commencing on March 15 of the years set
forth below, plus, in each case, accrued and unpaid interest, if any, thereon to
the date of redemption:

                  Year                                Percentage

                  2001................................ 103.000%
                  2002 and thereafter................. 100.000%

         At any time, or from time to time,  prior to March 15, 2001, the Issuer
may, at its option, use all or a portion of the net cash proceeds of one or more
Equity Offerings to redeem up to 35% of the aggregate  original principal amount
of the Notes at a Redemption Price equal to 112.875 % 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 65% of the
aggregate original principal amount of the 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 the
Issuer or any of its Affiliates shall be deemed not to be outstanding). In order
to effect the foregoing redemption with the proceeds of any Equity Offering, the
Issuer shall make such  redemption not more than 60 days after the  consummation
of any such Equity Offering.

         SECTION 3.04.  Notice of Redemption.

         At least 30 days but not more than 60 days  before a  Redemption  Date,
the  Issuer  shall  mail or cause to be mailed a notice of  redemption  by first
class mail to each  Holder of Notes to be redeemed  at its  registered  address,
with a copy to the Trustee and any Paying Agent.  At the Issuer's  request,  the
Trustee  shall give the notice of  redemption  in the  Issuer's  name and at the
Issuer's expense.

         Each notice of redemption  shall identify  (including the CUSIP number)
the Notes to be redeemed and shall state:

                  (1) the Redemption Date;

                  (2) the Redemption  Price and the amount of accrued  interest,
         if any, to be paid;

                  (3) the name and address of the Paying Agent;


                                       28
<PAGE>
                  (4) the  subparagraph  of the  Notes  pursuant  to which  such
         redemption is being made;

                  (5) that Notes called for  redemption  must be  surrendered to
         the Paying Agent to collect the Redemption Price plus accrued interest,
         if any;

                  (6) that,  unless the Issuer defaults in making the redemption
         payment,  interest on Notes or applicable  portions  thereof called for
         redemption  ceases to accrue on and after the Redemption  Date, and the
         only remaining right of the Holders of such Notes is to receive payment
         of the  Redemption  Price plus  accrued  interest as of the  Redemption
         Date, if any, upon surrender to the Paying Agent of the Notes redeemed;

                  (7) if any Note is being  redeemed in part, the portion of the
         principal  amount  of such  Note to be  redeemed  and  that,  after the
         Redemption  Date,  and upon surrender of such Note, a new Note or Notes
         in the  aggregate  principal  amount  equal to the  unredeemed  portion
         thereof will be issued; and

                  (8) if  fewer  than  all the  Notes  are to be  redeemed,  the
         identification  of the  particular  Notes (or  portion  thereof)  to be
         redeemed,  as well as the  aggregate  principal  amount  of Notes to be
         redeemed and the aggregate  principal amount of Notes to be outstanding
         after such partial redemption.

         The Issuer 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 purchase
of Notes.

         SECTION 3.05.  Effect of Notice of Redemption.

         Once notice of redemption  is mailed in  accordance  with Section 3.04,
such notice of redemption  shall be irrevocable  and Notes called for redemption
become  due and  payable on the  Redemption  Date at the  Redemption  Price plus
accrued  interest  as of such date,  if any.  Upon  surrender  to the Trustee or
Paying Agent,  such Notes called for redemption  shall be paid at the Redemption
Price plus accrued  interest thereon to the Redemption Date, but installments of
interest,  the maturity of which is on or prior to the Redemption Date, shall be
payable to Holders of record at the close of  business  on the  relevant  record
dates referred to in the Notes. Interest shall accrue on or after the Redemption
Date and  shall  be  payable  only if the  Issuer  defaults  in  payment  of the
Redemption Price plus any accrued and unpaid interest as of the Redemption Date.

         SECTION 3.06.  Deposit of Redemption Price.

         On or before the Redemption  Date and in accordance  with Section 2.14,
the Issuer shall deposit with the Paying Agent U.S.  Legal Tender  sufficient to
pay the  Redemption  Price plus  accrued  interest,  if any,  of all Notes to be
redeemed on that date. The Paying Agent shall promptly  return to the Issuer any
U.S.  Legal Tender so deposited  which is not required for that purpose,  except
with respect to monies owed as  obligations  to the Trustee  pursuant to Article
Seven.

         Unless the Issuer  fails to comply  with the  preceding  paragraph  and
default in the payment of such Redemption Price plus accrued  interest,  if any,
interest  on the  Notes to be  redeemed  will  cease to  accrue on and after the
applicable Redemption Date, whether or not such Notes are presented for payment.

         SECTION 3.07.  Notes Redeemed in Part.

         Upon  surrender  of a Note that is to be redeemed in part,  the Trustee
shall  authenticate for the Holder a new Note or Notes equal in principal amount
to the unredeemed portion of the Note surrendered.

                                       29
<PAGE>
                                  ARTICLE FOUR

                                    COVENANTS

         SECTION 4.01.  Payment of Notes.

         (a) The  Issuer  shall  pay the  principal  of,  premium,  if any,  and
interest  on the Notes on the dates and in the manner  provided in the Notes and
in this Indenture.

         (b) An  installment  of  principal of or interest on the Notes shall be
considered paid on the date it is due if the Trustee or Paying Agent (other than
the Issuer or any of its  Affiliates)  holds,  prior to 11:00 a.m. New York City
time on that date,  U.S.  Legal Tender  designated for and sufficient to pay the
installment in full and is not prohibited  from paying such money to the Holders
pursuant to the terms of this Indenture or the Notes.

         (c)  Notwithstanding   anything  to  the  contrary  contained  in  this
Indenture,  the Issuer may, to the extent it is required to do so by law, deduct
or  withhold  income or other  similar  taxes  imposed by the  United  States of
America from principal or interest payments hereunder.

         SECTION 4.02.  Maintenance of Office or Agency.

         The Issuer shall  maintain the office or agency  required under Section
2.03. The Issuer shall give prior written notice to the Trustee of the location,
and any change in the  location,  of such  office or agency.  If at any time the
Issuer shall fail to maintain any such  required  office or agency or shall fail
to furnish the Trustee with the address thereof, such presentations, surrenders,
notices  and  demands  may be made or served at the  address of the  Trustee set
forth in Section 10.02.

         SECTION 4.03.  Corporate Existence.

         Except as otherwise  permitted by Article Five,  the Issuer shall do or
cause to be done, at its own cost and expense,  all things necessary to preserve
and keep in full force and effect its  respective  corporate  existence  and the
corporate  existence of each of its Restricted  Subsidiaries  in accordance with
the respective  organizational  documents of each such Restricted Subsidiary and
the material  rights  (charter and  statutory)  and franchises of the Issuer and
each such Restricted Subsidiary; provided, however, that the Issuer shall not be
required to preserve,  with respect to itself,  any material  right or franchise
and, with respect to any of its  Restricted  Subsidiaries,  any such  existence,
material  right or  franchise,  if the Board of  Directors  of the Issuer  shall
determine in good faith that the preservation  thereof is no longer desirable in
the  conduct of the  business  of the Issuer  and its  Subsidiaries,  taken as a
whole.

         SECTION 4.04.  Payment of Taxes and Other Claims.

         The Issuer shall pay or  discharge  or cause to be paid or  discharged,
before the same shall become delinquent, (i) all material taxes, assessments and
governmental  charges (including  withholding taxes and any penalties,  interest
and additions to taxes) levied or imposed upon it or any of its  Subsidiaries or
its  properties  or any of its  Subsidiaries'  properties  and (ii) all material
lawful claims for labor,  materials and supplies  that, if unpaid,  might by law
become a Lien  upon  the  property  of the  Issuer  or any of its  Subsidiaries;
provided,  however, that the Issuer shall not be required to pay or discharge or
cause to be paid or discharged any such tax,  assessment,  charge or claim whose
amount,   applicability  or  validity  is  being  contested  in  good  faith  by
appropriate  negotiations  or  proceedings  properly  instituted  and diligently
conducted for which adequate  reserves,  to the extent required under GAAP, have
been taken.

                                       30
<PAGE>
         SECTION 4.05.  Maintenance of Properties and Insurance.

         (a)  The  Issuer  shall,   and  shall  cause  each  of  its  Restricted
Subsidiaries  to,  maintain all properties  used or useful in the conduct of its
business in good working order and condition (subject to ordinary wear and tear)
and make all necessary repairs, renewals,  replacements,  additions, betterments
and  improvements  thereto  and  actively  conduct  and  carry on its  business;
provided, however, that nothing in this Section 4.05 shall prevent the Issuer or
any  of  its  Restricted  Subsidiaries  from  discontinuing  the  operation  and
maintenance  of any of its  properties,  if  such  discontinuance  is (i) in the
ordinary course of business pursuant to customary  business terms or (ii) in the
good faith  judgment of the  respective  Boards of Directors or other  governing
body of the Issuer or Restricted  Subsidiary,  as the case may be,  desirable in
the conduct of their  respective  businesses and is not  disadvantageous  in any
material respect to the Holders.

         (b) The Issuer shall  provide or cause to be  provided,  for itself and
each  of  the  Restricted   Subsidiaries,   insurance   (including   appropriate
self-insurance)  against  loss or damage of the kinds  that,  in the good  faith
judgment  of the  Issuer,  is adequate  and  appropriate  for the conduct of the
business of the Issuer and its Restricted Subsidiaries in a prudent manner, with
reputable  insurers  or with the  government  of the United  States of  America,
Canada or an agency  or  instrumentality  thereof,  in such  amounts,  with such
deductibles,  and by such  methods  as shall  be  customary,  in the good  faith
judgment of the Issuer, for companies similarly situated in the industry.

         SECTION 4.06.  Compliance Certificate; Notice of Default.

         (a) The Issuer shall  deliver to the Trustee,  within 60 days after the
end of each of its fiscal  quarters (other than such fiscal quarter that ends on
the same day upon which Issuer's fiscal year ends) and 105 days after the end of
each of its fiscal years, an Officers' Certificate (provided,  however, that one
of the  signatories  to each such  Officers'  Certificate  shall be the Issuer's
principal executive officer, principal financial officer or principal accounting
officer), as to such Officers' knowledge, without independent investigation,  of
the Issuer's  compliance  with all conditions and covenants under this Indenture
(without  regard  to any  period  of grace or  requirement  of  notice  provided
hereunder) and in the event any Default exists,  such Officers shall specify the
nature of such Default.  Each such Officers'  Certificate  shall also notify the
Trustee  should  the  Issuer  elect to change  the  manner in which it fixes its
fiscal year end.

         (b) So long as not contrary to the then current  recommendations of the
American  Institute  of  Certified  Public  Accountants,  the  annual  financial
statements  delivered pursuant to Section 4.08 shall be accompanied by a written
report of the Issuer's independent  certified public accountants (who shall be a
firm  of  established   national   reputation)  stating  (A)  that  their  audit
examination has included a review of the terms of this Indenture and the form of
the Notes as they relate to accounting  matters,  and (B) whether, in connection
with their audit examination,  any Default or Event of Default has come to their
attention and if such a Default or Event of Default has come to their attention,
specifying the nature and period of existence thereof; provided,  however, that,
without  any  restriction  as to  the  scope  of  the  audit  examination,  such
independent  certified public  accountants  shall not be liable by reason of any
failure to obtain  knowledge  of any such Default or Event of Default that would
not be disclosed in the course of an audit  examination  conducted in accordance
with generally accepted auditing standards.

         (c)  (i) If any  Default  or  Event  of  Default  has  occurred  and is
continuing  or (ii) if any Holder  seeks to exercise any remedy  hereunder  with
respect to a claimed Default under this Indenture or the Notes, the Issuer shall
deliver to the Trustee,  at its address set forth in Section  10.02  hereof,  by
registered or certified mail or by facsimile  transmission followed by hard copy
by registered or certified mail an Officers' Certificate  specifying such event,
notice or other action within 10 days of its becoming aware of such occurrence.

                                       31
<PAGE>
         SECTION 4.07.  Compliance with Laws.

         The Issuer shall comply,  and shall cause each of its  Subsidiaries  to
comply,  with  all  applicable   statutes,   rules,   regulations,   orders  and
restrictions  of the United  States of  America,  all states and  municipalities
thereof,  and of any  governmental  department,  commission,  board,  regulatory
authority,  bureau,  agency and instrumentality of the foregoing,  in respect of
the conduct of their respective businesses and the ownership of their respective
properties,  except  for such  noncompliances  as  could  not  singly  or in the
aggregate  reasonably  be  expected  to have a  material  adverse  effect on the
financial condition,  business, prospects or results of operations of the Issuer
and its Subsidiaries taken as a whole.

         SECTION 4.08.  Reports to Holders.

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

         SECTION 4.09.  Waiver of Stay, Extension or Usury Laws.

         The Issuer and each Subsidiary  Guarantor  covenant (to the extent that
it may  lawfully do so) that it will not at any time insist upon,  plead,  or in
any manner  whatsoever  claim or take the benefit or  advantage  of, any stay or
extension  law or any usury law or other law that would  prohibit or forgive the
Issuer or such  Subsidiary  Guarantor  from  paying  all or any  portion  of the
principal of or interest on the Notes as contemplated herein,  wherever enacted,
now or at any time hereafter in force,  or which may affect the covenants or the
performance  of this  Indenture;  and (to the extent that it may lawfully do so)
the Issuer and each Subsidiary  Guarantor  hereby expressly waive all benefit or
advantage of any such law, and covenant that it will not hinder, delay or impede
the  execution of any power herein  granted to the Trustee,  but will suffer and
permit the execution of every such power as though no such law had been enacted.

         SECTION 4.10.  Limitation on Restricted Payments.

         The Issuer 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 Issuer) on or in respect of shares of the
                  Issuer's Capital Stock to holders of such Capital Stock,

         (b)      purchase,  redeem or otherwise acquire or retire for value any
                  Capital Stock of the Issuer 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 Issuer or warrants,  rights or
                  options to purchase  or acquire  shares of  Qualified  Capital
                  Stock of the Issuer,

         (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 Subordinated  Indebtedness
                  of the Issuer 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)  through  (d) being
referred  to as a  "Restricted  Payment"),  if at the  time of  such  Restricted
Payment or immediately after giving effect thereto,

                                       32
<PAGE>
         (i)      a Default or an Event of Default  shall have  occurred  and be
                  continuing,

         (ii)     the Issuer is not able to incur at least  $1.00 of  additional
                  Indebtedness (other than Permitted Indebtedness) in compliance
                  with Section 4.12, 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
                  Issuer) 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  Issuer  earned
                           subsequent  to the Issue  Date and on or prior to the
                           last date of the Issuer'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 Issuer from any Person  (other than a  Restricted
                           Subsidiary  of the Issuer) from the issuance and sale
                           subsequent  to the Issue  Date and on or prior to the
                           Reference  Date of  Qualified  Capital  Stock  of the
                           Issuer, 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
                           Issuer from a holder of the  Issuer's  Capital  Stock
                           (excluding,  in the case of clauses (iii)(B) and this
                           clause (iii)(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  Issuer or to any  Restricted  Subsidiary  of the
                           Issuer from  Unrestricted  Subsidiaries  (but without
                           duplication   of  any   such   amount   included   in
                           calculating cumulative Consolidated Net Income of the
                           Issuer),   or  from  redesignations  of  Unrestricted
                           Subsidiaries as Restricted Subsidiaries (in each case
                           valued as provided in Section  4.14),  not to exceed,
                           in the  case  of  any  Unrestricted  Subsidiary,  the
                           amount of Investments  previously  made by the Issuer
                           or any  Restricted  Subsidiary  in such  Unrestricted
                           Subsidiary  and which  was  treated  as a  Restricted
                           Payment under this 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 Issuer), 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

                                       33
<PAGE>
                  the  Issuer,  either  (A)  solely in  exchange  for  shares of
                  Qualified  Capital  Stock of the  Issuer  or (B)  through  the
                  application of net proceeds of a substantially concurrent sale
                  for cash (other than to a Restricted Subsidiary of the Issuer)
                  of shares of Qualified Capital Stock of the Issuer,

         (3)      if no Default or Event of Default  shall have  occurred and be
                  continuing,  the acquisition of any Indebtedness of the Issuer
                  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,  either (A) solely in exchange
                  for shares of Qualified  Capital  Stock of the Issuer,  or (B)
                  through the  application  of net  proceeds of a  substantially
                  concurrent   sale  for  cash  (other  than  to  a   Restricted
                  Subsidiary  of the Issuer) of (I) shares of Qualified  Capital
                  Stock of the Issuer or (II) Refinancing Indebtedness, and

         (4)      the   initial   designation   of  Western  and  Grey  Wolf  as
                  Unrestricted Subsidiaries under this Indenture. 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) and (2)(B) shall be included in such calculation.

         SECTION 4.11.  Limitation on Transactions with Affiliates.

         (a) The  Issuer  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 Section
4.11(b)  and (ii)  Affiliate  Transactions  that are on terms  that are fair and
reasonable to the Issuer or the applicable Restricted Subsidiary and are no less
favorable to the Issuer 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 Issuer 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 Issuer,
such  approval to be evidenced by a Board  Resolution  stating that the Board of
Directors  has  determined  that such  transaction  complies  with the foregoing
provisions.  If the Issuer 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
Issuer shall, prior to the consummation  thereof,  obtain a favorable opinion as
to the fairness of such  transaction  or series of related  transactions  to the
Issuer  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 Section  4.11(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  Issuer  or  any
Restricted  Subsidiary  as determined in good faith by the Board of Directors or
senior management of the Issuer or such Restricted  Subsidiary,  as the case may
be;  (ii)  transactions  exclusively  between or among the Issuer and any of its
Restricted   Subsidiaries  or  exclusively  between  or  among  such  Restricted
Subsidiaries;  provided,  however,  that  such  transactions  are not  otherwise
prohibited by this Indenture;  and (iii) Restricted  Payments  permitted by this
Indenture.

         SECTION 4.12.  Limitation on Incurrence of Additional Indebtedness.

         The Issuer will not, and will not cause or permit any of its Restricted
Subsidiaries  to,  directly or  indirectly,  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 Issuer and the Subsidiary Guarantors 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,

         (a)      both (i) the Issuer's Consolidated EBITDA Coverage Ratio would
                  have been at least  equal to 2.5 to 1.0 and (ii) the  Issuer's
                  Adjusted  Consolidated  Net  Tangible  Assets  are equal to or

                                       34
<PAGE>
                 greater than 150% of the aggregate  consolidated  Indebtedness
                  of the Issuer and its Restricted Subsidiaries, or

         (b)      the Issuer's  Adjusted  Consolidated  Net Tangible  Assets are
                  equal to or greater  than 200% of the  aggregate  consolidated
                  Indebtedness of the Issuer and its Restricted Subsidiaries.

         Notwithstanding  the  preceding,  if no Event  of  Default  shall  have
occurred and be continuing at the time or as a consequence  of the incurrence of
such Indebtedness,  the Issuer and any of its Restricted  Subsidiaries may incur
Permitted Indebtedness.

         For purposes of determining any particular amount of Indebtedness under
this  Section  4.12,  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  Issuer  or any  Restricted
Subsidiary or which is secured by a Lien on an asset acquired by the Issuer 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 Issuer 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 Issuer 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  Issuer  or  such  Subsidiary
Guarantor, as the case may be.

         SECTION 4.13.  Limitation  on Dividend and Other  Payment  Restrictions
Affecting Restricted Subsidiaries.

         The Issuer 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  to, or pay any  Indebtedness  or other
                  obligation  owed  to,  the  Issuer  or  any  other  Restricted
                  Subsidiary,

         (c)      guarantee  any  Indebtedness  or any other  obligation  of the
                  Issuer or any Restricted Subsidiary, or

         (d)      transfer  any of its  property  or assets to the Issuer or any
                  other   Restricted   Subsidiary   (each  such  encumbrance  or
                  restriction, a "Payment Restriction").

         The preceding will not apply,  however, to encumbrances or restrictions
existing  under or by reason of the following  (which are excluded from the term
"Payment Restriction"):  (i) applicable law, (ii) this Indenture, this Indenture
governing  the  Series  D  Notes  or  any  Security  Document,  (iii)  customary
non-assignment  provisions  of any  contract or any lease  governing a leasehold
interest of any Restricted  Subsidiary,  (iv) 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,  (v)  agreements  existing  on the Issue Date to the extent and in the
manner  such  agreements  were in  effect  on the  Issue  Date,  (vi)  customary
restrictions  with respect to a Restricted  Subsidiary of the Issuer 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 this  Indenture  solely in  respect  of the  assets or Capital
Stock to be sold or  disposed  of,  (vii) 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

                                       35
<PAGE>

(viii) an agreement governing Refinancing Indebtedness incurred to Refinance the
Indebtedness issued, assumed or incurred pursuant to an agreement referred to in
clause (ii), (iv) or (v) 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 Issuer in its  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), (iv) or
(v).

         SECTION 4.14.  Limitation on Restricted and Unrestricted Subsidiaries.

         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  Issuer  and  its  Restricted  Subsidiaries  of the
Indebtedness  (if any) of such  redesignated  Subsidiary for purposes of Section
4.12, (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 Issuer
could  not  incur  $1.00  of  additional   Indebtedness  (other  than  Permitted
Indebtedness)  pursuant  to Section  4.12 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 Issuer also may, if no Default or Event
of Default  shall have  occurred  and be  continuing  or would arise  therefrom,
designate any Restricted  Subsidiary none of whose properties are subject to any
Liens of the Security  Documents to be an  Unrestricted  Subsidiary  if (i) such
designation  is at that time permitted  under Section 4.10 and (ii)  immediately
after  giving  effect to such  designation,  the  Issuer  could  incur  $1.00 of
additional  Indebtedness (other than Permitted Indebtedness) pursuant to Section
4.12.

         Any such  designation or  redesignation 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
Section 4.14, such Restricted Subsidiary's Guarantee will be released.

         For purposes of Section 4.10,  (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  Issuer'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 Issuer'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 Issuer and the
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.

         Notwithstanding the foregoing, the Board of Directors may not designate
any  Subsidiary of the Issuer to be an  Unrestricted  Subsidiary  if, after such
designation,  (a) the Issuer 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.

         Notwithstanding the foregoing,  the provisions set forth above will not
prohibit  the  initial   designation  of  each  of  Grey  Wolf  and  Western  as
Unrestricted Subsidiaries.

                                       36
<PAGE>
         Subsidiaries  of the  Issuer  that are not  designated  by the Board of
Directors  as  Restricted  or  Unrestricted  Subsidiaries  will be  deemed to be
Restricted Subsidiaries.  All Subsidiaries of an Unrestricted Subsidiary will be
Unrestricted Subsidiaries.

         SECTION 4.15.  Change of Control.

         (a) Upon the  occurrence of a Change of Control,  each Holder will have
the  right to  require  that the  Issuer  repurchase  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.

         (b) Within 30 days  following the date upon which the Change of Control
occurred,  the Issuer must send, by first class mail, a notice to each Holder at
such Holder's last registered address, with a copy to the Trustee,  which notice
shall govern the terms of the Change of Control Offer. The notice to the Holders
shall contain all instructions and materials necessary to enable such Holders to
tender Notes pursuant to the Change of Control Offer. Such notice shall state:

                    (i) that the Change of Control  Offer is being made pursuant
         to this Section 4.15, that all Notes tendered and not withdrawn will be
         accepted for payment and that the Change of Control  Offer shall remain
         open for a period of 20 Business  Days or such longer  period as may be
         required by law;

                   (ii) the  purchase  price  (including  the  amount of accrued
         interest) and the purchase date (which shall 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");

                  (iii)  that any Note not  tendered  will  continue  to  accrue
         interest;

                   (iv)  that,  unless  the Issuer  defaults  in making  payment
         therefor,  any Note  accepted  for  payment  pursuant  to the Change of
         Control  Offer  shall  cease to accrue  interest  after  the  Change of
         Control Payment Date;

                    (v) that 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 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;

                   (vi) that Holders will be entitled to withdraw their election
         if the Paying Agent  receives,  not later than the second  Business Day
         prior to the  Change  of  Control  Payment  Date,  a  telegram,  telex,
         facsimile  transmission or letter setting forth the name of the Holder,
         the principal amount of the Notes the Holder delivered for purchase and
         a statement that such Holder is  withdrawing  his election to have such
         Notes purchased;

                  (vii) that Holders whose Notes are purchased only in part will
         be issued  new Notes in a  principal  amount  equal to the  unpurchased
         portion of the Notes  surrendered;  provided,  however,  that each Note
         purchased  and each new Note issued  shall be in an original  principal
         amount of $1,000 or integral multiples thereof; and

                 (viii) the  circumstances  and relevant  facts  regarding  such
         Change of Control.

         On or before the Change of Control  Payment Date,  the Issuer shall (i)
accept for payment Notes or portions thereof tendered  pursuant to the Change of
Control  Offer,  (ii) deposit with the Paying Agent in  accordance  with Section
2.14 U.S.  Legal  Tender  sufficient  to pay the  purchase  price  plus  accrued
interest,  if any,  of all Notes so  tendered  and (iii)  deliver to the Trustee

                                       37
<PAGE>
Notes so accepted  together with an Officers'  Certificate  stating the Notes or
portions thereof being purchased by the Issuer. Upon receipt by the Paying Agent
of the  monies  specified  in  clause  (ii)  above  and a copy of the  Officers'
Certificate  specified in clause (iii)  above,  the Paying Agent shall  promptly
mail to the  Holders  of Notes so  accepted  payment  in an amount  equal to the
purchase  price plus accrued  interest,  if any, and the Trustee shall  promptly
authenticate and mail to such Holders new Notes equal in principal amount to any
unpurchased portion of the Notes surrendered. Any Notes not so accepted shall be
promptly  mailed by the  Issuer to the  Holder  thereof.  For  purposes  of this
Section 4.15, the Trustee shall act as the Paying Agent.

         The Issuer 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 Issuer
and purchases all Notes validly  tendered and not withdrawn under such Change of
Control Offer.

         Neither the Board of  Directors of the Issuer nor the Trustee may waive
the provisions of this Section 4.15 relating to the Issuer's  obligation to make
a Change of Control Offer.

         The Issuer 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
provisions  of this Section  4.15,  the Issuer shall comply with the  applicable
securities  laws and  regulations  and shall not be deemed to have  breached its
obligations under the provisions of this Section 4.15 by virtue thereof.

         SECTION 4.16.  Limitation on Asset Sales.

         (a) The  Issuer  will  not,  and will not  cause or  permit  any of its
Restricted Subsidiaries to, consummate an Asset Sale unless:

                  (i) the Issuer 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  Issuer's  Board of
         Directors or senior management of the Issuer);

                  (ii) (A) at least  70% of the  consideration  received  by the
         Issuer  or the  Restricted  Subsidiary,  as the case may be,  from such
         Asset  Sale  shall  be in the form of cash or Cash  Equivalents  and is
         received at the time of such  disposition  and (B) 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 90
         days of such disposition.

         (b) Within 180 days after the receipt of any Net Cash  Proceeds from an
Asset Sale, the Issuer or such  Restricted  Subsidiary  shall apply the Net Cash
Proceeds of such Asset Sale as follows:

                  (i) to the extent such Net Cash  Proceeds are received from an
         Asset  Sale  not  involving  the  sale,   transfer  or  disposition  of
         Collateral  ("Non-Collateral  Proceeds"),  to  repay  any  Indebtedness
         secured by the assets  involved  in such  Asset  Sale  together  with a
         concomitant  permanent  reduction in the amount of such Indebtedness so
         repaid; and

                  (ii) with  respect to any  Non-Collateral  Proceeds  remaining
         after application pursuant to the preceding clause (i) and any Net Cash
         Proceeds received from an Asset Sale involving  Collateral,  the Issuer
         shall make an offer within such 180 days to purchase (the "Net Proceeds
         Offer") from all Holders up to a maximum principal amount (expressed as
         an  integral  multiple  of  $1,000)  of Notes  equal  to the  Available
         Proceeds  Amount at a  purchase  price  equal to 100% of the  principal
         amount thereof plus accrued and unpaid interest  thereon to the date of
         purchase (the "Net Proceeds  Offer  Payment  Date");  provided that the
         Issuer will not be  required to apply  pursuant to this clause (ii) Net
         Cash  Proceeds  received from any Asset Sale if, and only to the extent
         that such Net Cash  Proceeds  are applied  to,  within 180 days of such

                                       38
<PAGE>
         Asset Sale,  (i) an investment or  investments in Crude Oil and Natural
         Gas Related  Assets or (ii) an investment or  investments 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
         Crude Oil and  Natural Gas  Business  of the Issuer and its  Restricted
         Subsidiaries  ("Replacement  Assets"), and the assets constituting such
         Crude Oil and Natural Gas Related Assets or Replacement  Assets and any
         non-cash  consideration  received  are made subject to the Lien of this
         Indenture and the Security Documents in the manner contemplated in this
         Indenture  to the extent the Net Cash  Proceeds  used to purchase  such
         assets  arose from the sale of property  that was subject to such Lien,
         provided that any such assets that are Oil and Gas Assets shall be made
         subject to such Lien in any event; further provided,  however,  that if
         at the end of the 180 day period  referred to above,  the Issuer or one
         of  its  Restricted  Subsidiaries  has  delivered  to  the  Trustee  an
         Officers'  Certificate  (A) otherwise in  compliance  with the terms of
         this  Indenture,  (B) stating that  attached  thereto is a  definitive,
         executed  purchase and sale  agreement  for a Crude Oil and Natural Gas
         Related Assets  investment or for Replacement  Assets,  and (C) setting
         forth the aggregate cash  consideration  to be paid in connection  with
         such purchase from the Available Proceeds Amount, then the Issuer shall
         have an additional 90 day period during which it may defer making a Net
         Proceeds Offer with respect to the Available Proceeds Amount subject of
         such purchase and sale.

         If at any time any consideration  (other than cash or Cash Equivalents)
received by the Issuer or any Restricted  Subsidiary of the Issuer,  as the case
may be, in connection with any Asset Sale is converted into or sold or otherwise
disposed of for cash,  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 Section 4.16.

         The Issuer may defer the Net Proceeds Offer until there is an aggregate
unutilized  Available  Proceeds  Amount  equal  to or in  excess  of  $5,000,000
resulting  from one or more Asset  Sales (at which  time the  entire  unutilized
Available  Proceeds  Amount,  and not just the  amount in excess of  $5,000,000,
shall be applied as required  pursuant to this Section 4.16).  To the extent the
Net Proceeds Offer is not fully subscribed to by Holders,  the Issuer may obtain
a release of the unutilized portion of the Collateral  Proceeds from the Lien of
this Indenture and the Security Documents.

         Notwithstanding  the terms of the four preceding  paragraphs above, the
Issuer 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  Issuer  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 this Section 4.16;  further  provided,  however,  that, to the
extent that the  property  transferred  or conveyed  constitutes  an Oil and Gas
Asset,  the property  received in exchange  therefor  constitutes an Oil and Gas
Asset.

         All  Collateral  Proceeds  shall  constitute  Trust Moneys and shall be
delivered by the Issuer to the Trustee and shall be deposited in the  Collateral
Account in accordance with this Indenture.  Collateral Proceeds so deposited may
be  withdrawn  from the  Collateral  Account  for  application  by the Issuer in
accordance  with clause (ii) above or  otherwise  pursuant to this  Indenture in
accordance with Section 12.08.

         In the event of the transfer of substantially  all (but not all) of the
consolidated  assets of the Issuer as an entirety  to a Person in a  transaction
permitted under Section 5.01, the successor  corporation shall be deemed to have
sold the  consolidated  assets of the Issuer not so transferred  for purposes of
this  covenant,  and shall comply with the  provisions of this Section 4.16 with
respect to such deemed sale as if it were an Asset Sale.  In addition,  the fair
market value of such  consolidated  assets of the Issuer deemed to be sold shall
be deemed to be Net Cash Proceeds for purposes of this Section 4.16.

         (c) Each notice of a Net Proceeds  Offer  pursuant to this Section 4.16
shall be mailed or caused to be mailed,  by first class mail,  by the Issuer not
less than 30 days nor more than 60 days before the Net  Proceeds  Offer  Payment
Date to all  Holders  at their  last  registered  addresses,  with a copy to the
Trustee.  The notice shall contain all instructions  and materials  necessary to

                                       39
<PAGE>
enable such Holders to tender Notes pursuant to the Net Proceeds Offer and shall
state the following terms:

                    (i) that the Net  Proceeds  Offer is being made  pursuant to
         Section  4.16,  that all Notes  tendered  will be accepted for payment;
         provided,  however,  that if the  aggregate  principal  amount of Notes
         tendered  in  a  Net  Proceeds  Offer  plus  accrued  interest  at  the
         expiration  of such  offer  exceeds  the  aggregate  amount  of the Net
         Proceeds Offer,  the Issuer shall select the Notes to be purchased on a
         pro rata basis (with such  adjustments as may be deemed  appropriate by
         the Issuer so that only Notes in  denominations  of $1,000 or multiples
         thereof  shall be  purchased)  and that the Net  Proceeds  Offer  shall
         remain open for a period of 20 Business  Days or such longer  period as
         may be required by law;

                   (ii) the  purchase  price  (including  the  amount of accrued
         interest) and the Net Proceeds Offer Payment Date;

                   (iii)  that any Note not  tendered  will  continue  to accrue
         interest;

                   (iv)  that,  unless  the Issuer  defaults  in making  payment
         therefor,  any Note  accepted for payment  pursuant to the Net Proceeds
         Offer  shall  cease to accrue  interest  after the Net  Proceeds  Offer
         Payment Date;

                    (v) that Holders electing to have a Note purchased  pursuant
         to a Net Proceeds  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 at the address specified in
         the notice  prior to the close of  business on the third  Business  Day
         prior to the Net Proceeds Offer Payment Date;

                   (vi) that Holders will be entitled to withdraw their election
         if the Paying  Agent  receives,  not later than the third  Business Day
         prior to the Net  Proceeds  Offer  Payment  Date,  a  telegram,  telex,
         facsimile  transmission or letter setting forth the name of the Holder,
         the principal amount of the Notes the Holder delivered for purchase and
         a statement that such Holder is  withdrawing  his election to have such
         Note purchased; and

                  (vii) that Holders whose Notes are purchased only in part will
         be issued  new Notes in a  principal  amount  equal to the  unpurchased
         portion of the Notes  surrendered;  provided,  however,  that each Note
         purchased  and each new Note issued  shall be in an original  principal
         amount of $1,000 or integral multiples thereof;

         On or before the Net Proceeds  Offer Payment Date, the Issuer shall (A)
accept for  payment  Notes or  portions  thereof  tendered  pursuant  to the Net
Proceeds  Offer which are to be purchased in accordance  with item (c)(i) above,
(B) deposit with the Paying  Agent in  accordance  with Section 2.14 U.S.  Legal
Tender  sufficient to pay the purchase price plus accrued  interest,  if any, of
all Notes to be  purchased  and (C) deliver to the Trustee all Notes so accepted
together  with an Officers'  Certificate  stating the Notes or portions  thereof
being  purchased  by the Issuer.  The Paying  Agent shall  promptly  mail to the
Holders of Notes so accepted  payment in an amount equal to the  purchase  price
plus accrued  interest,  if any. For purposes of this Section 4.16,  the Trustee
shall act as the Paying Agent.

         The Issuer 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 provisions of
this Section 4.16, the Issuer shall comply with the applicable  securities  laws
and regulations  and shall not be deemed to have breached its obligations  under
the provisions of this Section 4.16 by virtue thereof.

         SECTION 4.17.  Limitations  with Respect to Capital Stock of Restricted
Subsidiaries.

         The Issuer will not cause or permit any of its Restricted  Subsidiaries
to issue any  Preferred  Stock  (other  than to the Issuer or to a Wholly  Owned

                                       40
<PAGE>
Restricted  Subsidiary)  or permit any Person (other than the Issuer or a Wholly
Owned  Restricted  Subsidiary)  to own any  Preferred  Stock  of any  Restricted
Subsidiary.  The  Issuer  will  not and  will not  cause  or  permit  any of its
Restricted  Subsidiaries  to sell or otherwise  dispose of any shares of Capital
Stock of any Restricted  Subsidiary,  and shall not permit any of its Restricted
Subsidiaries,  directly or indirectly,  to issue or sell or otherwise dispose of
any of its Capital Stock except: (a) to the Issuer or a Wholly-Owned  Restricted
Subsidiary  of the  Issuer,  or (b) if all  shares  of  Capital  Stock  of  such
Restricted  Subsidiary are sold or otherwise disposed of. In connection with any
sale or disposition of Capital Stock of any Restricted  Subsidiary of the Issuer
under  clause (b),  the Issuer will be required to comply with  Section 4.16 and
the  Guarantee  given  by such  Restricted  Subsidiary,  if any,  as well as all
Collateral owned by such Person shall be released.

         SECTION 4.18.  Limitation on Liens.

         The Issuer 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 or remain in effect any Liens:

         (a)      upon any item of  Collateral  other than the Liens  created by
                  this  Indenture  and the  Security  Documents  and  the  Liens
                  expressly permitted by the applicable Security Documents; and

         (b)      upon  any  other  Properties  of the  Issuer  or of any of its
                  Restricted  Subsidiaries,  whether  owned on the Issue Date or
                  acquired  after the Issue  Date,  or on any  income or profits
                  therefrom,  or assign or otherwise convey any right to receive
                  income or profits  thereon  other than,  with  respect to this
                  clause (b): (i) Liens existing on the Issue Date to the extent
                  and in the manner  such Liens are in effect on the Issue Date,
                  and (ii) Permitted Liens.

         SECTION 4.19.  Limitation on Conduct of Business.

         The  Issuer  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.

         SECTION 4.20.  Additional Subsidiary Guarantees.

         If the Issuer 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 Issuer 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  substantially  the form
of Exhibit F, pursuant to which such Restricted Subsidiary shall unconditionally
guarantee all of the Issuer's  obligations under the Notes and this Indenture on
the  terms  set  forth in this  Indenture,  (b)  grant to the  Trustee a Lien on
substantially  all its Oil and Gas  Assets,  and (c)  deliver to the  Trustee an
Opinion  of  Counsel  and an  Officers'  Certificate,  stating  that no Event of
Default shall occur as a result of such supplemental indenture, that it complies
with the terms of this Indenture and 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 this Indenture.

         SECTION 4.21.  Limitation on Restrictive Covenants.

         Notwithstanding any other provisions of this Indenture, the restrictive
covenants  set forth  herein  for so long as the Series D  Indenture  remains in
effect, shall be and shall be deemed limited to the extent necessary so that the
creation,  existence and  effectiveness of such  restrictive  covenant shall not
result  in a breach  of the  covenant  of the  Series D  Indenture  relating  to
"Limitation  on Dividend and Other  Payment  Restrictions  Affecting  Restricted
Subsidiaries."

         SECTION 4.22.  Impairment of Security Interest.

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<PAGE>
         Neither  the  Issuer nor any of its  Subsidiaries  will take or omit to
take any action  which  action or  omission  would have the result of  adversely
affecting or impairing any Lien granted in favor of the Trustee, for its benefit
and the benefit of the Holders, with respect to the Collateral,  and neither the
Issuer nor any of its  Subsidiaries  shall  grant to any  Person,  or suffer any
Person (other than the Issuer and its  Restricted  Subsidiaries)  to have (other
than to the  Trustee on behalf of the  Trustee  and the  Holders)  any  interest
whatsoever in the Collateral other than Permitted Liens.  Neither the Issuer nor
any of its Subsidiaries  will enter into any agreement or instrument that by its
terms  requires the proceeds  received from any sale of Collateral to be applied
to repay, redeem, defease or otherwise acquire or retire any Indebtedness, other
than pursuant to this Indenture and the Security Documents.

         SECTION 4.23.  Additional Amounts.

         All payments made by any Subsidiary  Guarantor under or with respect to
the  Notes  or its  Guarantee  will be made  free  and  clear  of,  and  without
withholding  or deduction for or on account of, any present or future tax, duty,
levy, impost, assessment or other governmental charge imposed or levied by or on
behalf of the Government of Canada or of any province or territory thereof or by
any  authority  or  agency  therein  or  thereof  having  power  to tax  (or the
jurisdiction  of  incorporation  of any successor of any  Subsidiary  Guarantor)
(hereunder  "Taxes"),   unless  the  applicable   Subsidiary  Guarantor  or  any
successor, as the case may be, is required to withhold or deduct Taxes by law or
by the  interpretation  or administration  thereof by the relevant  governmental
authority or agency. If any Subsidiary  Guarantor or any successor,  as the case
may be, is so  required  to  withhold  or deduct any amount for or on account of
Taxes from any payment made under or with respect to the Notes or any Guarantee,
such  Subsidiary   Guarantor  will  pay  such  additional  amounts  ("Additional
Amounts")  as may be  necessary  so that the net amount  received by each Holder
(including  Additional  Amounts) after such withholding or deduction will not be
less than the amount the Holder  would have  received if such Taxes had not been
withheld or deducted;  provided that no Additional  Amounts will be payable with
respect to a payment  made to a Holder (an  "Excluded  Holder")  in respect of a
beneficial owner (a) with which the Issuer or such Subsidiary Guarantor does not
deal at arm's-length  (within the meaning of the Income Tax Act (Canada)) at the
time of making  such  payment or (b) which is subject to such Taxes by reason of
its being connected with Canada or any province or territory  thereof  otherwise
than by the mere acquisition, holding or disposition of the Notes or the receipt
of  payments  thereunder.  The  Subsidiary  Guarantors  will  also (i) make such
withholding or deduction and (ii) remit the full amount  deducted or withheld to
the relevant  governmental  authority in  accordance  with  applicable  law. The
Subsidiary Guarantors will furnish to the Holders, within 30 days after the date
the payment of any Taxes is due pursuant to applicable law,  certified copies of
tax receipts  evidencing such payment.  The Subsidiary  Guarantors will, jointly
and  severally,  indemnify and hold harmless each Holder (other than an Excluded
Holder) and upon written  request  reimburse  each such Holder for the amount of
(A) any  Taxes so levied or  imposed  on and paid by such  Holder as a result of
payments  made  under or with  respect  to the Notes or any  Guarantee,  (B) any
liability (including penalties, interest and expenses) arising therefrom or with
respect  thereto,  and (C) any Taxes  imposed with respect to any  reimbursement
under (A) or (B) so that the net  amount  received  by such  Holder  after  such
reimbursement  will not be less  than  the net  amount  the  Holder  would  have
received if Taxes on such  reimbursement had not been imposed.  At least 30 days
prior to each date on which any  payment  under or with  respect to the Notes is
due and payable,  if a Subsidiary  Guarantor will be obligated to pay Additional
Amounts with respect to such payment,  such Subsidiary Guarantor will deliver to
the  Trustee an  Officers'  Certificate  stating  the fact that such  Additional
Amounts  will be  payable,  the amounts so payable and will set forth such other
information  necessary to enable the Trustee to pay such  Additional  Amounts to
Holders on the payment date.  Whenever in this Indenture there is mentioned,  in
any context,  the payment of principal (and premium, if any),  redemption price,
Change of Control payment,  purchase price, interest or any other amount payable
under or with  respect  to any Note,  such  mention  shall be deemed to  include
mention  of the  payment of  Additional  Amounts  to the  extent  that,  in such
context, Additional Amounts are, were or would be payable in respect thereof.

    The Issuer will pay any present or future stamp,  court or documentary taxes
or any other excise or property  taxes,  charges or similar levies that arise in
any jurisdiction  from the execution,  delivery,  enforcement or registration of
the Notes or any other document or instrument in relation  thereto,  or from the
receipt of any payments with respect to the Notes, excluding such taxes, charges
or  similar  levies  imposed  by  any  jurisdiction   outside  of  Canada,   the
jurisdiction of incorporation of any successor of the Issuer or any jurisdiction
in which a paying agent is located,  and has agreed to indemnify the Holders for
any such taxes paid by such Holders.

                                       42
<PAGE>
    The  foregoing  obligations  shall  survive any  termination,  defeasance or
discharge of this  Indenture  and the payment of all amounts owing under or with
respect to the Notes and any Guarantee.

         SECTION 4.24.  Maintenance of Lien; Additional Collateral.

         (a) If,  after  the Issue  Date,  the  Issuer or any of its  Restricted
Subsidiaries shall (i) acquire any material Oil and Gas Assets or (ii) engage in
successful drilling and exploration  activities resulting in the creation of new
material Crude Oil and Natural Gas Properties,  then the Issuer shall, and shall
cause  each  of  its  Restricted  Subsidiaries  to,  execute  and  file  in  the
appropriate  filing  offices  mortgages,  deeds of trust,  security  agreements,
financing  statements  and other  instruments  granting  to the  Trustee for the
benefit of the Holders a first priority Lien,  subject only to Permitted  Liens,
as is necessary or appropriate to ensure that the Lien of this Indenture and the
Security Documents covers such new Oil and Gas Assets ; provided,  however, that
in no event  shall the Issuer  shall be  obligated  to grant a Lien to the T-Gas
Assets if the sale or  disposition  thereof  results in Net Cash Proceeds to the
Issuer in excess of $500,000.

         (b) Without  limitation of clause (a) of this Section 4.24, on the date
any  Replacement  Assets  shall be acquired  pursuant to Section 4.16 and on the
date of any Oil and Gas  Assets  are  received  in  exchange  or trade for other
properties as  contemplated by clause (G) of the definition of "Asset Sale," the
Issuer shall,  and shall cause each of its Restricted  Subsidiaries  to, execute
and file in the appropriate filing offices mortgages,  deeds of trust,  security
agreements,  financing statements and other instruments granting to the Trustee,
for the benefit of the Holders, a first priority Lien, subject only to Permitted
Liens,  on  substantially  all of such  material  Replacement  Assets  or  other
material Oil and Gas Assets received in exchange or trade.

         (c) In connection with any Security  Documents executed and filed under
clause (a) or (b) of Section  4.24,  the Issuer shall also comply with the terms
of Section 12.02 to the extent applicable.

         (d) On March 15th in each year,  beginning  with  March 15,  2000,  the
Issuer shall review its and its Restricted  Subsidiaries'  Oil and Gas Assets to
ascertain  whether or not  substantially  all of such assets are then subject to
the Lien of this Indenture and the Security Documents.  If a substantial portion
of such  assets  are not  then  subject  to the Lien of this  Indenture  and the
Security  Documents,  then the  Issuer  shall,  and shall  cause its  Restricted
Subsidiaries,  to execute and file in the appropriate  filing offices mortgages,
deeds of trust, security agreements,  financing statements and other instruments
granting to the Trustee  for the benefit of the Holders a first  priority  Lien,
subject only to Permitted  Liens,  as is necessary or  appropriate to accomplish
such objective.

                                  ARTICLE FIVE

                              SUCCESSOR CORPORATION

         SECTION 5.01.  Merger, Consolidation and Sale of Assets.

                                       43
<PAGE>
         The  Issuer  will not,  in a single  transaction  or series of  related
transactions,  consolidate  or merge with or into any Person,  or sell,  assign,
transfer,  lease,  convey  or  otherwise  dispose  of (or  cause or  permit  any
Restricted  Subsidiary to sell,  assign,  transfer,  lease,  convey or otherwise
dispose of) all or  substantially  all of the Issuer's  assets  (determined on a
consolidated basis for the Issuer and its Restricted  Subsidiaries),  whether as
an entirety or substantially as an entirety to any Person unless: (a) either (i)
the  Issuer  or such  Restricted  Subsidiary,  as the case may be,  shall be the
surviving  or  continuing  corporation  or (ii) the  Person  (if other  than the
Issuer) formed by such  consolidation  or into which the Issuer is merged or the
Person which acquires by sale, assignment,  transfer, lease, conveyance or other
disposition  the  properties  and  assets  of  the  Issuer  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  (or if  such  Restricted
Subsidiary  was formed  under the laws of Canada or any  province  or  territory
thereof,  such  Surviving  Entity shall be a  corporation  organized and validly
existing under the laws of Canada or any province or territory  thereof) 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,  this  Indenture,
the Security Documents and the Registration  Rights Agreement on the part of the
Issuer 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  and  any  Lien  granted  in  connection  with  or in  respect  of such
transaction), the Issuer 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 Issuer 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 Section  4.12  hereof;  (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 Issuer 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
hereof and that all  conditions  precedent  in this  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
Issuer.

         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 Issuer,  shall be deemed to be the transfer of
all or substantially all of the properties and assets of the Issuer.

         Each Subsidiary  Guarantor  (other than any Subsidiary  Guarantor whose
Guarantee is to be released in  accordance  with the terms of the  Guarantee and
this Indenture in connection with any transaction  complying with the provisions
of this  Indenture  described  under this Section 5.01) will not, and the Issuer
will not cause or permit any Subsidiary  Guarantor to, consolidate with or merge
with or into any Person  other than the Issuer 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  (or if such
Restricted  Subsidiary  was formed  under the laws of Canada or any  province or
territory  thereof,  such Surviving Entity shall be a corporation  organized and
validly existing under the laws of Canada or any province or territory thereof);
(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
Issuer could satisfy the provisions of clause (b) of the first paragraph of this
Section 5.01.  Any merger or  consolidation  of a Subsidiary  Guarantor with and
into the  Issuer  (with  the  Issuer  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 Section 5.01.

                                       44
<PAGE>

         SECTION 5.02.  Successor Corporation Substituted.

         Upon any consolidation, combination or merger or any transfer of all or
substantially  all of the assets of the Issuer in accordance with the foregoing,
in which the Issuer is not the Surviving Entity,  the Surviving Entity formed by
such  consolidation  or into  which  the  Issuer  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 Issuer under this  Indenture and
the Notes  with the same  effect as if such  Surviving  Entity had been named as
such,  and  thereafter  (except  in  the  case  of  a  lease),  the  predecessor
corporation will be relieved of all further obligations and covenants under this
Indenture and the Notes.

                                   ARTICLE SIX

                                    REMEDIES

         SECTION 6.01.  Events of Default.

         An "Event of Default" means any of the following events:

                  (a) the  failure to pay  interest  (including  any  Liquidated
         Damages)  on any Notes when the same  becomes  due and payable and such
         default continues for a period of 20 days;

                  (b) the  failure to pay the  principal  of 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  this  Indenture  which  default
         continues  for a period of 20 days after the  Issuer or any  Subsidiary
         Guarantor 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 Section  4.15,  4.16 or 5.01 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 Issuer or any Restricted  Subsidiary
         (or the payment of which is guaranteed by the Issuer 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 $5,000,000 or
         more;

                  (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  Issuer  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) the Issuer or any of its Subsidiaries pursuant to or under
         or within the meaning of any Bankruptcy Law:

                             (i)    commences a voluntary case or proceeding;

                            (ii)  consents  to the entry of an order for  relief
                  against it in an involuntary case or proceeding;


                                       45
<PAGE>
                           (iii)  consents to the  appointment of a Custodian of
                  it or for all or substantially all of its property;

                           (iv) makes a general  assignment  for the  benefit of
                  its creditors; or

                           (v) shall generally not pay its debts when such debts
                  become due or shall admit in writing its  inability to pay its
                  debts generally;

                  (g) a court  of  competent  jurisdiction  enters  an  order or
decree under any Bankruptcy Law that:

                           (i)  is  for  relief   against   the  Issuer  or  any
                  Subsidiary of the Issuer in an involuntary case or proceeding,

                           (ii)  appoints  a  Custodian  of the  Issuer  or any
                  Subsidiary of the Issuer for all or  substantially  all of its
                  Properties, or

                           (iii)  orders  the  liquidation  of the Issuer or any
                  Subsidiary of the Issuer, and in each case the order or decree
                  remains unstayed and in effect for 60 days; or

                  (h) any of the  Guarantees  or any of the  Security  Documents
         cease to be in full  force and effect or any of the  Guarantees  or the
         Security  Documents  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 this Indenture)
         or any obligor or any Related Person denies or disaffirms its liability
         under any Security Document to which it is party.

         SECTION 6.02.  Acceleration.

         Upon the  happening of any Event of Default  specified in Section 6.01,
the Trustee may, or the holders of at least 25% in aggregate 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 Issuer and the Trustee  specifying  the  respective  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 of the type  described in clause (f) or (g)
above occurs and is  continuing,  then such amount will ipso facto become and be
immediately  due and payable without any declaration or other act on the part of
the Trustee or any Holder.

         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
aggregate  principal  amount of the Notes then  outstanding by written notice to
the Issuer and the  Trustee may  rescind  and cancel  such  declaration  and its
consequences  (a) if the  rescission  would not  conflict  with any  judgment or
decree,  (b) if all existing  Events of Default have been cured or waived except
nonpayment of principal or interest  that has become due solely  because of such
acceleration, (c) to the extent the payment of such interest is lawful, interest
on overdue installments of interest and overdue principal,  which has become due
otherwise than by such  declaration of  acceleration,  has been paid, (d) if the
Issuer has 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) or
(g) 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
Issuer.  No such  rescission  shall affect any subsequent  Default or impair any
right consequent thereto.

         SECTION 6.03.  Other Remedies.

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<PAGE>
         If an Event of Default occurs and is continuing, the Trustee may pursue
any available remedy by proceeding at law or in equity to collect the payment of
the  principal of,  premium,  if any, or interest on the Notes or to enforce the
performance of any provision of the Notes or this Indenture.

         All rights of action and claims  under this  Indenture or the Notes may
be enforced by the Trustee  even if it does not possess any of the Notes or does
not produce any of them in the proceeding. A delay or omission by the Trustee or
any Holder in exercising  any right or remedy  accruing upon an Event of Default
shall not impair the right or remedy or  constitute a waiver of or  acquiescence
in the Event of  Default.  No  remedy is  exclusive  of any  other  remedy.  All
available remedies are cumulative to the extent permitted by law.

         SECTION 6.04.  Waiver of Past Defaults.

         Prior to the declaration of  acceleration of the Notes,  the Holders of
not less than a  majority  in  aggregate  principal  amount  of the  Notes  then
outstanding  by written  notice to the Trustee  may, on behalf of the Holders of
all  the  Notes,  waive  any  existing  Default  or  Event  of  Default  and its
consequences  under  this  Indenture,  except a  Default  or  Event  of  Default
specified in Section 6.01(a) or (b) or in respect of any provision  hereof which
cannot be  modified  or amended  without  the  consent of the Holder so affected
pursuant to Section  9.02.  When a Default or Event of Default is so waived,  it
shall be deemed to be cured and shall cease to exist. This Section 6.04 shall be
in lieu of '  316(a)(1)(B)  of the TIA  and  such '  316(a)(1)(B)  of the TIA is
hereby expressly excluded from this Indenture and the Notes, as permitted by the
TIA.

         SECTION 6.05.  Control by Majority.

         Holders of the Notes may not enforce this Indenture or the Notes except
as provided in this  Article Six and under the TIA. The Holders of not less than
a majority in aggregate principal amount of the outstanding Notes shall 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,  provided,  however,  that the  Trustee  may  refuse to follow any
direction (a) that  conflicts with any rule of law or this  Indenture,  (b) that
the  Trustee  determines  may be unduly  prejudicial  to the  rights of  another
Holder,  or (c) that may expose  the  Trustee to  personal  liability  for which
reasonable security and indemnity provided to the Trustee against such liability
shall be inadequate;  provided,  further, however, that the Trustee may take any
other action  deemed  proper by the Trustee that is not  inconsistent  with such
direction  or  this  Indenture.  This  Section  6.05  shall  be  in  lieu  of  '
316(a)(1)(A) of the TIA, and such ' 316(a)(1)(A) of the TIA is hereby  expressly
excluded from this Indenture and the Notes, as permitted by the TIA.

         SECTION 6.06.  Limitation on Suits.

         No Holder of any Notes shall have any right to institute any proceeding
with  respect  to this  Indenture,  the Notes,  any  Guarantee  or any  Security
Document or any remedy  hereunder or thereunder,  unless the Holders of at least
25% in aggregate  principal  amount of the  outstanding  Notes have made written
request,  and  offered  reasonable  security  and  indemnity,  to the Trustee to
institute  such  proceeding as Trustee under the Notes and this  Indenture,  the
Trustee has failed to institute such proceeding  within 60 days after receipt of
such notice, request and offer of security and indemnity and the Trustee, within
such 60-day period, has not received  directions  inconsistent with such written
request by Holders of not less than a majority in aggregate  principal amount of
the outstanding Notes.

         The  foregoing  limitations  shall not apply to a suit  instituted by a
Holder  of a Note  for the  enforcement  of the  payment  of the  principal  of,
premium,  if any, or interest on, such Note on or after the respective due dates
expressed or provided for in such Note.

         A Holder  may not use this  Indenture  to  prejudice  the rights of any
other Holders or to obtain priority or preference over such other Holders.

         SECTION 6.07.  Right of Holders To Receive Payment.

                                       47
<PAGE>
         Notwithstanding any other provision in this Indenture, the right of any
Holder of a Note to receive  payment of the principal of,  premium,  if any, and
interest  on such  Note,  on or after  the  respective  due dates  expressed  or
provided  for in such  Note,  or to bring suit for the  enforcement  of any such
payment on or after the respective due dates, is absolute and  unconditional and
shall not be impaired or affected without the consent of the Holder.

         SECTION 6.08.  Collection Suit by Trustee.

         If an Event of Default  specified  in clause (a) or (b) of Section 6.01
occurs and is continuing,  the Trustee may recover  judgment in its own name and
as trustee of an express trust  against the Issuer,  or any other obligor on the
Notes for the whole amount of the  principal  of,  premium,  if any, and accrued
interest  remaining unpaid,  together with interest on overdue principal and, to
the  extent  that  payment  of such  interest  is  lawful,  interest  on overdue
installments of interest, in each case at the rate per annum provided for by the
Notes  and such  further  amount as shall be  sufficient  to cover the costs and
expenses of collection,  including the reasonable compensation,  fees, expenses,
disbursements and advances of the Trustee, its agents and counsel.

         SECTION 6.09.  Trustee May File Proofs of Claim.

         The Trustee may file such proofs of claim and other papers or documents
as may be  necessary  or  advisable  in order to have the claims of the  Trustee
(including  any  claim  for  the  reasonable   compensation,   fees,   expenses,
disbursements and advances of the Trustee, its agents, counsel,  accountants and
experts)  and the Holders  allowed in any judicial  proceedings  relative to the
Issuer, any Subsidiary Guarantor or Restricted  Subsidiary (or any other obligor
upon the Notes),  their  creditors  or their  property and shall be entitled and
empowered  to  collect  and  receive  any  monies or other  property  payable or
deliverable  on any such claims and to distribute the same, and any Custodian in
any such judicial  proceedings is hereby  authorized by each Holder to make such
payments to the Trustee and, in the event that the Trustee  shall consent to the
making of such  payments  directly  to the  Holders,  to pay to the  Trustee any
amount due to it for the reasonable compensation,  fees, expenses, disbursements
and advances of the Trustee,  its agent and counsel,  and any other  amounts due
the Trustee under  Section 7.07.  Nothing  herein  contained  shall be deemed to
authorize the Trustee to authorize or consent to or accept or adopt on behalf of
any Holder any plan of  reorganization,  arrangement,  adjustment or composition
affecting  the Notes or the rights of any Holder  thereof,  or to authorize  the
Trustee to vote in respect of the claim of any Holder in any such proceeding.

         SECTION 6.10.  Priorities.

         If the Trustee collects any money pursuant to this Article Six it shall
pay out such money in the following order:

                  First: to the Trustee (including any predecessor  Trustee) for
         amounts due under Section 7.07;

                  Second: to Holders for interest accrued on the Notes, ratably,
         without  preference  or priority of any kind,  according to the amounts
         due and payable on the Notes for interest;

                  Third:  to Holders for the principal  amounts  (including  any
         premium) owing under the Notes, ratably, without preference or priority
         of any kind,  according to the amounts due and payable on the Notes for
         the principal (including any premium); and

                  Fourth:  the balance, if any, to the Issuer.

         The Trustee,  upon prior written notice to the Issuer, may fix a record
date and payment date for any payment to Holders pursuant to this Section 6.10.

         SECTION 6.11.  Undertaking for Costs.

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<PAGE>
         In any suit for the  enforcement  of any  right or  remedy  under  this
Indenture  or in any suit against the Trustee for any action taken or omitted by
it as  Trustee,  a court may in its  discretion  require the filing by any party
litigant  in the suit of an  undertaking  to pay the costs of the suit,  and the
court in its  discretion  may  assess  reasonable  costs,  including  reasonable
attorneys'  fees,  against any party litigant in the suit,  having due regard to
the merits and good faith of the claims or defenses made by the party  litigant.
This  Section  6.11  does not  apply to any suit by the  Trustee,  any suit by a
Holder  pursuant to Section  6.06, or a suit by a Holder or Holders of more than
10% in aggregate principal amount of the outstanding Notes.

         SECTION 6.12.  Restoration of Rights and Remedies.

         If the Trustee or any Holder has  instituted  any proceeding to enforce
any right or remedy  under this  Indenture,  any  Guarantee or any Note and such
proceeding  has been  discontinued  or  abandoned  for any  reason,  or has been
determined  adversely to the Trustee or to such  Holder,  then and in every such
case the Issuer, the Subsidiary  Guarantors,  the Trustee and the Holders shall,
subject to any  determination  in such  proceeding,  be restored  severally  and
respectively to their former positions hereunder,  and thereafter all rights and
remedies  of the  Trustee  and the  Holders  shall  continue  as  though no such
proceeding had been instituted.

                                  ARTICLE SEVEN

                                     TRUSTEE

         SECTION 7.01.  Duties of Trustee.

         (a) If an Event of Default has occurred and is continuing,  the Trustee
shall  exercise such of the rights and powers vested in it by this Indenture and
use the same  degree  of care and  skill in its  exercise  thereof  as a prudent
person would exercise or use under the  circumstances  in the conduct of his own
affairs.

         (b) Except during the continuance of an Event of Default:

                  (1)  The  Trustee  need  perform  only  those  duties  as  are
         specifically   set  forth  in  this   Indenture  and  no  covenants  or
         obligations  shall be implied in this Indenture that are adverse to the
         Trustee.

                  (2) In the  absence of bad faith on its part,  the Trustee may
         conclusively   rely,  as  to  the  truth  of  the  statements  and  the
         correctness of the opinions  expressed  therein,  upon  certificates or
         opinions furnished to the Trustee and conforming to the requirements of
         this  Indenture.  However,  in the  case of any  such  certificates  or
         opinions that by any provision hereof are  specifically  required to be
         furnished to the Trustee,  the Trustee shall  examine the  certificates
         and  opinions  to  determine   whether  or  not  they  conform  to  the
         requirements of this Indenture.

         (c)  Notwithstanding  anything to the contrary  herein  contained,  the
Trustee may not be relieved from liability for its own negligent action, its own
negligent failure to act, or its own willful misconduct, except that:

                  (1) This  paragraph does not limit the effect of paragraph (b)
         of this Section 7.01.

                  (2) The Trustee  shall not be liable for any error of judgment
         made in good  faith by a Trust  Officer,  unless it is proved  that the
         Trustee was negligent in ascertaining the pertinent facts.

                  (3) The Trustee shall not be liable with respect to any action
         it takes or omits to take in good faith in accordance  with a direction
         received by it pursuant to Section 6.02, 6.04 or 6.05.

         (d) No provision of this Indenture  shall require the Trustee to expend
or risk  its own  funds  or  otherwise  incur  any  financial  liability  in the

                                       49
<PAGE>
performance  of any of its duties  hereunder  or in the  exercise  of any of its
rights  or  powers  if it shall  have  reasonable  grounds  for  believing  that
repayment of such funds or adequate  security and indemnity against such risk or
liability is not reasonably assured to it.

         (e) Every  provision of this  Indenture  that in any way relates to the
Trustee is subject to paragraphs  (a), (b), (c) and (d) of this Section 7.01 and
Section 7.02.

         (f) The Trustee shall not be liable for interest on any money or assets
received  by it except as the  Trustee  may agree in  writing  with the  Issuer.
Assets held in trust by the Trustee  need not be  segregated  from other  assets
except to the extent required by law.

         SECTION 7.02.  Rights of Trustee.

         Subject to Section 7.01:

                  (a) The  Trustee  may rely and  shall  be fully  protected  in
         acting or refraining from acting upon any document believed by it to be
         genuine and to have been signed or presented by the proper Person.  The
         Trustee need not investigate any fact or matter stated in the document,
         but the Trustee,  in its  discretion,  may make such further inquiry or
         investigation  into such facts or matters as it may see fit, and if the
         Trustee shall determine to make such further inquiry or  investigation,
         it shall be entitled to examine the books,  records and premises of the
         Company, personally or by agent or attorney.

                  (b) Before the Trustee acts or refrains  from  acting,  it may
         consult  with  counsel of its  selection  and may require an  Officers'
         Certificate  or an Opinion of Counsel,  which shall conform to Sections
         10.04 and  10.05.  The  Trustee  shall not be liable  for any action it
         takes or omits to take in good  faith  in  reliance  on such  Officers'
         Certificate or Opinion of Counsel.

                  (c) The Trustee may act through its  attorneys  and agents and
         shall not be responsible  for the misconduct or negligence of any agent
         appointed with due care.

                  (d) The  Trustee  shall not be liable for any  action  that it
         takes or omits to take in good faith which it reasonably believes to be
         authorized or within the discretion, rights or powers conferred upon it
         by this Indenture.

                  (e) The Trustee  shall not be bound to make any  investigation
         into the  facts  or  matters  stated  in any  resolution,  certificate,
         statement,  instrument,  opinion, notice, request, direction,  consent,
         order, bond, debenture, or other paper or document, but the Trustee, in
         its  discretion,  may make such further inquiry or  investigation  into
         such facts or  matters as it may see fit,  and,  if the  Trustee  shall
         determine to make such further  inquiry or  investigation,  it shall be
         entitled,  upon reasonable  notice to the Issuer, to examine the books,
         records, and premises of the Issuer, personally or by agent or attorney
         and to consult  with the officers  and  representatives  of the Issuer,
         including the Issuer's accountants and attorneys.

                  (f) The Trustee  shall be under no  obligation to exercise any
         of the rights or powers vested in it by this  Indenture at the request,
         order or direction of any of the Holders  pursuant to the provisions of
         this  Indenture,  unless  such  Holders  shall  have  offered,  and  if
         requested,  provided to the Trustee security and indemnity satisfactory
         to the Trustee against the costs, expenses and liabilities which may be
         incurred by it in  compliance  with such request,  order,  direction or
         exercise.

                  (g) The  Trustee  shall  not be  required  to give any bond or
         surety  in  respect  of  the  performance  of  its  powers  and  duties
         hereunder.

                  (h)  Delivery of reports,  information  and  documents  to the
         Trustee under Section 4.08 is for  informational  purposes only and the
         Trustee's  receipt of the foregoing  shall not constitute  constructive
         notice  of any  information  contained  therein  or  determinable  from

                                       50
<PAGE>
         information   contained   therein,   including  the  Issuer's  and  any
         Subsidiary Guarantor's compliance with any of their covenants hereunder
         (as to which the Trustee is entitled to rely  exclusively  on Officers'
         Certificates).

                  (i) No permissive  right of the Trustee to act hereunder shall
         be construed as a duty.

                  (j)  Whenever  in the  administration  of this  Indenture  the
         Trustee shall deem it desirable  that a matter be proved or established
         prior to  taking,  suffering  or  omitting  any action  hereunder,  the
         Trustee (unless other evidence be herein specifically  prescribed) may,
         in the  absence  of bad  faith  on its  part,  rely  upon an  Officers'
         Certificate, a written Opinion of Counsel, or both.

                  (k) Except with respect to Section  4.01  hereof,  the Trustee
         shall have no duty to inquire as to the  performance  of the  Company's
         covenants in Article Four hereof. In addition, the Trustee shall not be
         deemed to have  knowledge of any Default or Event of Default except (i)
         any Event of Default occurring pursuant to Sections 6.01(a) and 6.01(b)
         hereof or (ii) any  Default or Event of  Default  of which the  Trustee
         shall have received written notification or obtained actual knowledge.

                  (l)  The  Trustee  shall  not be  deemed  to  have  notice  or
         knowledge  of any matter  unless a Trust  Officer has actual  knowledge
         thereof or unless  written notice thereof is received by the Trustee at
         the  Corporate  Trust Office of the Trustee and such notice  references
         the Notes generally, the Company or this Indenture.

                  (m) The Trustee shall be authorized to exercise its rights and
         remedies under this Indenture and the Security Documents through one or
         more agents.

         SECTION 7.03.  Individual Rights of Trustee.

         The  Trustee in its  individual  or any other  capacity  may become the
owner or pledgee of Notes and may  otherwise  deal with the  Issuer,  any of its
Subsidiaries,  or their respective Affiliates with the same rights it would have
if it were not Trustee. Any Agent may do the same with like rights. However, the
Trustee must comply with Sections 7.10 and 7.11.

         SECTION 7.04.  Trustee's Disclaimer.

         The Trustee makes no  representation  as to the validity or adequacy of
this Indenture, the Guarantees,  the Registration Rights Agreement or the Notes,
and it shall not be  accountable  for the Issuer's use of the proceeds  from the
Notes,  and it shall not be responsible  for any statement of the Issuer in this
Indenture or the Notes other than the Trustee's certificate of authentication.

         SECTION 7.05.  Notice of Default.

         If a Default or an Event of Default occurs and is continuing and if (i)
the Trustee  receives written notice thereof or (ii) such default is an Event of
Default  under  Section  6.01(a) or (b),  the Trustee  shall mail to each Holder
notice of the uncured Default or Event of Default within 90 days after obtaining
knowledge  thereof.  Except in the case of a Default  or an Event of  Default in
payment of  principal  of, or interest on, any Note,  including  an  accelerated
payment,  a Default in payment on the Change of Control Payment Date pursuant to
a Change of Control Offer or on the Net Proceeds  Offer Payment Date pursuant to
a Net Proceeds Offer and a Default in compliance  with Article Five hereof,  the
Trustee may  withhold the notice if and so long as its Board of  Directors,  the
executive  committee of its Board of  Directors or a committee of its  directors
and/or Trust Officers in good faith determines that withholding the notice is in
the interest of the Holders.  The foregoing  sentence of this Section 7.05 shall
be in lieu of the proviso to ' 315(b) of the TIA and such proviso to ' 315(b) of
the TIA is hereby  expressly  excluded  from this  Indenture  and the Notes,  as
permitted by the TIA.

         SECTION 7.06.  Reports by Trustee to Holders.

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<PAGE>
         Within 60 days after  November 1 of each year  beginning with 1998, the
Trustee  shall,  to the extent that any of the events  described in TIA ' 313(a)
occurred  within the previous  twelve months,  but not  otherwise,  mail to each
Holder a brief report dated as of such date that complies with TIA ' 313(a). The
Trustee also shall comply with TIA " 313(b), (c) and (d).

         A copy of each  report at the time of its  mailing to Holders  shall be
mailed to the Issuer and filed with the Commission and each stock  exchange,  if
any, on which the Notes are listed.

         The Issuer shall promptly notify the Trustee if the Notes become listed
on any stock exchange and the Trustee shall comply with TIA ' 313(d).

         SECTION 7.07.  Compensation and Indemnity.

         The Issuer shall pay to the Trustee from time to time such compensation
for its  services  as has been  agreed to by the  Issuer  and the  Trustee.  The
Trustee's  compensation  shall not be  limited by any law on  compensation  of a
trustee of an express trust. The Issuer shall reimburse the Trustee upon request
for all reasonable  out-of-pocket  expenses incurred or made by it in connection
with the  performance  of its duties under this  Indenture.  Such expenses shall
include the  reasonable  fees and  expenses of the  Trustee's  agents,  counsel,
accountants and experts.

         The Issuer and the  Subsidiary  Guarantors  shall jointly and severally
indemnify  each of the  Trustee  (or any  predecessor  Trustee)  and its agents,
employees,  stockholders,  Affiliates  and  directors and officers for, and hold
them each  harmless  against,  any and all  loss,  liability,  damage,  claim or
expense  (including  reasonable  fees and expenses of counsel),  including taxes
(other  than taxes based on the income of the  Trustee)  incurred by them except
for such actions to the extent  caused by any  negligence,  bad faith or willful
misconduct on their part,  relating to or arising out of or in  connection  with
(i) the  acceptance or  administration  of this trust  including the  reasonable
costs and  expenses of  defending  themselves  against any claim or liability in
connection  with the exercise or performance  of any of their rights,  powers or
duties hereunder,  or (ii) the validity,  invalidity,  adequacy or inadequacy of
this Indenture,  the Subsidiary  Guarantees,  the Notes, the Registration Rights
Agreement  and the  Offering  Memorandum.  The Trustee  shall  notify the Issuer
promptly of any claim asserted  against the Trustee for which it intends to seek
indemnity.  At the Trustee's sole discretion,  the Issuer shall defend the claim
and the Trustee shall  cooperate and may  participate in the defense;  provided,
however,  that any  settlement  of a claim  shall be  approved in writing by the
Trustee if such  settlement  would  result in an  admission  of liability by the
Trustee or if such settlement  would not be accompanied by a full release of the
Trustee for all  liability  arising out of the events giving rise to such claim.
Alternatively,  the Trustee may at its option have  separate  counsel of its own
choosing  and the Issuer  shall pay the  reasonable  fees and  expenses  of such
counsel.

         To secure the Issuer's  payment  obligations  in this Section 7.07, the
Trustee  shall  have a lien  prior to the Notes on all  assets or money  held or
collected by the Trustee,  in its  capacity as Trustee,  except  assets or money
held in trust to pay principal of or premium,  if any, or interest on particular
Notes.

         When the Trustee incurs expenses or renders  services after an Event of
Default  specified  in Section  6.01(f) or (g)  occurs,  such  expenses  and the
compensation   for  such  services  are  intended  to  constitute   expenses  of
administration under any Bankruptcy Law.

         The  provisions of this Section 7.07 shall survive the  termination  of
this Indenture.

         SECTION 7.08.  Replacement of Trustee.

         The Trustee  may resign at any time by so  notifying  the  Issuer.  The
Holders of a majority in principal  amount of the  outstanding  Notes may remove
the Trustee and appoint a successor  Trustee  with the Issuer's  consent,  by so
notifying the Issuer and the Trustee.  The Issuer may by resolution of its Board
of Directors remove the Trustee if:

                  (1)      the Trustee fails to comply with Section 7.10;

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<PAGE>
                  (2)      the Trustee is adjudged bankrupt or insolvent;

                  (3) a receiver or other  public  officer  takes  charge of the
         Trustee or its property; or

                  (4) the Trustee becomes incapable of acting.

         If the  Trustee  resigns or is  removed  or if a vacancy  exists in the
office of Trustee for any reason,  the Issuer  shall  notify each Holder of such
event and shall promptly appoint a successor Trustee.  Within one year after the
successor Trustee takes office, the Holders of a majority in aggregate principal
amount of the outstanding  Notes may appoint a successor  Trustee to replace the
successor Trustee appointed by the Issuer.

         A  successor  Trustee  shall  deliver  a  written   acceptance  of  its
appointment to the retiring Trustee and to the Issuer.  Immediately  after that,
the retiring  Trustee  shall  transfer all property held by it as Trustee to the
successor Trustee, subject to the Lien provided in Section 7.07, the resignation
or removal of the retiring  Trustee  shall become  effective,  and the successor
Trustee  shall have all the rights,  powers and duties of the Trustee under this
Indenture.  The Issuer shall mail notice of such successor Trustee's appointment
to each Holder.

         If a successor  Trustee  does not take office  within 30 days after the
retiring Trustee resigns or is removed,  the retiring Trustee, the Issuer or the
Holders of at least 10% in aggregate  principal amount of the outstanding  Notes
may  petition  any court of  competent  jurisdiction  for the  appointment  of a
successor Trustee.

         If the  Trustee  fails to comply  with  Section  7.10,  any  Holder may
petition any court of competent  jurisdiction for the removal of the Trustee and
the appointment of a successor Trustee.

         Notwithstanding  any resignation or replacement of the Trustee pursuant
to this Section 7.08, the Issuer's obligations under Section 7.07 shall continue
for the benefit of the retiring Trustee.

         SECTION 7.09.  Successor Trustee by Merger, Etc.

         If the Trustee consolidates with, merges or converts into, or transfers
all  or   substantially   all  of  its  corporate  trust  business  to,  another
corporation,  the  resulting,  surviving or transferee  corporation  without any
further act shall,  if such  resulting,  surviving or transferee  corporation is
otherwise eligible hereunder, be the successor Trustee; provided,  however, that
such  corporation  shall be otherwise  qualified and eligible under this Article
Seven.

         SECTION 7.10.  Eligibility; Disqualification.

         This   Indenture   shall  always  have  a  Trustee  who  satisfies  the
requirement  of TIA " 310(a)(1),  (2) and (5). The Trustee (or, in the case of a
Trustee that is a corporation  included in a bank holding  company  system,  the
related bank holding  company)  shall have a combined  capital and surplus of at
least $150 million as set forth in its most recent  published  annual  report of
condition,  and  have a  Corporate  Trust  Office  in the City of New  York.  In
addition,  if the Trustee is a  corporation  included in a bank holding  company
system, the Trustee,  independently of such bank holding company, shall meet the
capital  requirements  of TIA ' 310(a)(2).  The Trustee  shall comply with TIA '
310(b);  provided,  however,  that there shall be excluded from the operation of
TIA ' 310(b)(1)  any indenture or indentures  under which other  securities,  or
certificates of interest or participation in other securities, of the Issuer are
outstanding, if the requirements for such exclusion set forth in TIA ' 310(b)(1)
are  met.  The  provisions  of TIA ' 310  shall  apply  to the  Issuer  and  the
Subsidiary Guarantors, as obligors of the Notes.

         SECTION 7.11.  Preferential Collection of Claims Against Issuer.

         The Trustee  shall  comply with TIA ' 311(a),  excluding  any  creditor
relationship  listed in TIA ' 311(b). A Trustee who has resigned or been removed
shall be subject to TIA ' 311(a) to the extent indicated therein. The provisions
of TIA ' 311  shall  apply  to the  Issuer  and the  Subsidiary  Guarantors,  as
obligors on the Notes.

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<PAGE>
         SECTION 7.12.  Other Capacities.

         All  references  in this  Indenture  to the Trustee  shall be deemed to
refer to the Trustee in its  capacity as Trustee  and in its  capacities  as any
Agent,  to the extent  acting in such  capacities,  and every  provision of this
Indenture  relating  to the  conduct or  affecting  the  liability  or  offering
protection,  immunity or indemnity to the Trustee  shall be deemed to apply with
the same force and effect to the Trustee acting in its capacities as any Agent.

                                  ARTICLE EIGHT

                       DISCHARGE OF INDENTURE; DEFEASANCE

         SECTION 8.01.  Termination of Issuer's Obligations.

         This  Indenture,  the  Guarantees  and the Security  Documents  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 this  Indenture) as to all  outstanding  Notes when (a) either (i) all 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
Issuer and thereafter  repaid to the Issuer 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
Issuer has  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  written  instructions  in the form of an  Officers'
Certificate  from the Issuer  directing  the  Trustee to apply such funds to the
payment  thereof at maturity or  redemption,  as the case may be; (b) the Issuer
has paid all other sums payable under this Indenture by the Issuer;  and (c) the
Issuer has delivered to the Trustee an Officers'  Certificate  and an Opinion of
Counsel stating that all conditions  precedent under this Indenture  relating to
the  satisfaction  and  discharge of this  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 Issuer.

         The  Issuer  may,  at its  option  and at any  time,  elect to have its
obligations  and the  corresponding  obligations  of the  Subsidiary  Guarantors
discharged  with respect to the  outstanding  Notes ("Legal  Defeasance").  Such
Legal  Defeasance  means that the Issuer and the Subsidiary  Guarantors 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  Issuer's  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 Issuer's
obligations in connection  therewith and (d) the Legal Defeasance  provisions of
this Section 8.01.  In addition,  the Issuer may, at its option and at any time,
elect to have the  obligations of the Issuer and the Subsidiary  Guarantors,  if
any,  released with respect to covenants  contained in Sections  4.04,  4.08 and
4.10 through 4.20 and Article Five  ("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 of Covenant Defeasance, those
events  described  under Section 6.01 (except those events  described in Section
6.01(a),(b),(f)  and (g)) 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 Issuer must irrevocably  deposit with the Trustee,  in
         trust,  for the benefit of the Holders U.S. Legal Tender,  non-callable
         U.S. 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;

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<PAGE>
                  (b) in the case of Legal  Defeasance,  the  Issuer  shall have
         delivered  to the  Trustee an  Opinion of Counsel in the United  States
         reasonably acceptable to the Trustee confirming that (i) the Issuer has
         received  from, or there has been  published  by, the Internal  Revenue
         Service a ruling or (ii) since the Issue Date,  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 Issuer 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
         under Section 6.01(f) or (g) 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 this
         Indenture or any other  agreement or  instrument to which the Issuer or
         any of its Restricted Subsidiaries is a party or by which the Issuer or
         any of its Restricted Subsidiaries is bound;

                  (f)  the  Issuer  shall  have  delivered  to  the  Trustee  an
         Officers'  Certificate  stating  that the  deposit  was not made by the
         Issuer  with the  intent  of  preferring  the  Holders  over any  other
         creditors  of the  Issuer or with the intent of  defeating,  hindering,
         delaying or defrauding any other creditors of the Issuer or others;

                  (g)  the  Issuer  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 Issuer;

                  (h) the Issuer 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; and

                  (i)  certain   other   customary   conditions   precedent  are
         satisfied.

         SECTION 8.02.  Application of Trust Money.

         The Trustee or Paying  Agent shall hold in trust U.S.  Legal  Tender or
U.S.  Government  Obligations  deposited  with it pursuant to Section 8.01,  and
shall apply the deposited U.S.  Legal Tender and the money from U.S.  Government
Obligations in accordance with this Indenture to the payment of the principal of
and interest on the Notes.  The Trustee  shall be under no  obligation to invest
said U.S. Legal Tender or U.S. Government  Obligations except as it may agree in
writing with the Issuer.

         The Issuer shall pay and indemnify the Trustee  against any tax, fee or
other charge imposed on or assessed against the Legal Tender or U.S.  Government
Obligations  deposited  pursuant to Section 8.01 or the  principal  and interest
received in respect  thereof  other than any such tax, fee or other charge which
by law is for the account of the Holders of outstanding Notes. The provisions of
this Section 8.02 shall survive the termination of this Indenture.

         SECTION 8.03.  Repayment to the Issuer.

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<PAGE>
         Subject  to Section  8.01,  the  Trustee  and the  Paying  Agent  shall
promptly  pay to the Issuer upon  request any excess U.S.  Legal  Tender or U.S.
Government  Obligations held by them at any time and thereupon shall be relieved
from all liability with respect to such money.  The Trustee and the Paying Agent
shall  pay to the  Issuer  upon  receipt  of a  written  order in the form of an
Officers'  Certificate  requesting  any money  held by them for the  payment  of
principal or interest that remains  unclaimed for one year;  provided,  however,
that the  Trustee  or such  Paying  Agent,  before  being  required  to make any
payment,  may at the  expense  of the  Issuer  cause to be  published  once in a
newspaper of general  circulation in the City of New York or mail to each Holder
entitled to such money notice that such money remains unclaimed and that after a
date  specified  therein  which  shall be at least 30 days from the date of such
publication  or mailing any unclaimed  balance of such money then remaining will
be repaid to the Issuer.  After payment to the Issuer,  Holders entitled to such
money  must look to the  Issuer  for  payment  as  general  creditors  unless an
applicable law designates another Person.

         SECTION 8.04.  Reinstatement.

         If the Trustee or Paying Agent is unable to apply any U.S. Legal Tender
or U.S. Government  Obligations in accordance with Section 8.01 by reason of any
legal  proceeding  or by  reason  of any  order  or  judgment  of any  court  or
governmental  authority  enjoining,  restraining or otherwise  prohibiting  such
application,  then the Issuer's  obligations  under this Indenture and the Notes
shall be revived and  reinstated  as though no deposit had occurred  pursuant to
Section  8.01 until such time as the  Trustee or Paying  Agent is  permitted  to
apply all such U.S.  Legal Tender or U.S.  Government  Obligations in accordance
with Section 8.01; provided, however, that if the Issuer has made any payment of
interest  on or  principal  of any Notes  because  of the  reinstatement  of its
obligations, the Issuer shall be subrogated to the rights of the Holders of such
Notes to receive  such payment  from the U.S.  Legal  Tender or U.S.  Government
Obligations held by the Trustee or Paying Agent.

         SECTION 8.05.  Acknowledgment of Discharge by Trustee.

         After (i) the conditions of Section 8.01 have been satisfied,  (ii) the
Issuer has paid or caused to be paid all other  sums  payable  hereunder  by the
Issuer  and  (iii)  the  Issuer  has  delivered  to  the  Trustee  an  Officers'
Certificate  and an  Opinion  of  Counsel,  each  stating  that  all  conditions
precedent  referred  to in clause (i) above  relating  to the  satisfaction  and
discharge of this  Indenture  have been complied  with, the Trustee upon written
request of the Issuer in the form of an Officers'  Certificate shall acknowledge
in writing the discharge of the Issuer's obligations under this Indenture except
for those surviving obligations specified in Sections 7.07 and 8.02.

                                  ARTICLE NINE

                            MODIFICATION OF INDENTURE

         SECTION 9.01.  Without Consent of Holders.

         Subject to the provisions of Section 9.02,  the Issuer,  the Subsidiary
Guarantors and the Trustee may amend,  waive or supplement this Indenture or any
Security  Document  without notice to or consent of any Holder:  (a) to cure any
ambiguity,  defect or  inconsistency;  (b) to comply with  Section  5.01 of this
Indenture;  (c) to provide for uncertificated  Notes in addition to certificated
Notes;  (d) to comply with any requirements of the Commission in order to effect
or maintain the  qualification  of this Indenture  under the TIA; or (e) 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.  Notwithstanding  the
foregoing,  the Trustee  and the Issuer may not make any change  that  adversely
affects the rights of any Holder under this  Indenture or any Security  Document
without the consent of such Holder.  In formulating its opinion on such matters,
the Trustee will be entitled to rely on such  evidence as it deems  appropriate,
including,  without  limitation,  solely on an  Opinion  of  Counsel;  provided,
however, that in delivering such Opinion of Counsel, such counsel may rely as to
matters of fact, on a certificate or certificates of officers of the Issuer.

         SECTION 9.02.  With Consent of Holders.

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<PAGE>
         All other  amendments,  supplements or waivers of this  Indenture,  the
Notes,  the Guarantees or any Security  Document may be made with the consent of
the Holders of not less than a majority of the then outstanding principal amount
of the then outstanding  Notes,  except that, without the consent of each Holder
of the Notes affected thereby, no amendment,  supplement or waiver may, directly
or indirectly:  (i) reduce the amount of Notes whose Holders must consent to any
amendment;  (ii) reduce the rate of or change the time for payment of  interest,
including  defaulted  interest,  on any Notes or reduce the amount of liquidated
damages  payable  under the  Registration  Rights  Agreement;  (iii)  reduce the
principal  of or change 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; (iv) make any Notes payable in currency
other than that stated in the Notes;  (v) make any change in  provisions of this
Indenture  protecting  the right of each Holder of a Note 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
aggregate  principal amount of the then  outstanding  Notes to waive Defaults or
Events of Default;  (vi)  amend,  change or modify in any  material  respect the
obligation of the Issuer 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;  (vii) modify or change any
provision of this Indenture, any Security Document or Section 1.01 affecting the
ranking of the Notes or any  Guarantee in a manner which  adversely  affects the
Holders; or (viii) release any Subsidiary  Guarantor from any of its obligations
under its Guarantee or this  Indenture  otherwise  than in  accordance  with the
terms of this Indenture.

         SECTION 9.03.  Compliance with TIA.

         Every  amendment,  waiver or supplement of this  Indenture or the Notes
shall  comply  with the TIA as then in  effect;  provided,  however,  that  this
Section 9.03 shall not of itself  require that this  Indenture or the Trustee be
qualified  under the TIA or constitute  any admission or  acknowledgment  by any
party  hereto that any such  qualification  is  required  prior to the time this
Indenture and the Trustee are required by the TIA to be so qualified.

         SECTION 9.04.  Revocation and Effect of Consents.

         Until an amendment,  waiver or supplement becomes effective,  a consent
to it by a Holder is a  continuing  consent by the  Holder and every  subsequent
Holder  of a Note or  portion  of a Note  that  evidences  the same  debt as the
consenting  Holder's  Note,  even if  notation of the consent is not made on any
Note. Subject to the following  paragraph,  any such Holder or subsequent Holder
may  revoke  the  consent  as to such  Holder's  Note or portion of such Note by
notice  to the  Trustee  or the  Issuer  received  before  the date on which the
Trustee  receives an Officers'  Certificate  certifying  that the Holders of the
requisite  principal amount of Notes have consented (and not theretofore revoked
such consent) to the amendment,  supplement or waiver. An amendment,  supplement
or waiver  becomes  effective  upon  receipt by the  Trustee  of such  Officers'
Certificate  and evidence of consent by the Holders of the requisite  percentage
in principal amount of outstanding Notes.

         The Issuer may,  but shall not be  obligated  to, fix a Record Date for
the purpose of  determining  the Holders  entitled to consent to any  amendment,
supplement  or waiver,  which Record Date shall be at least 30 days prior to the
first   solicitation  of  such  consent.   If  a  Record  Date  is  fixed,  then
notwithstanding  the second  sentence of the  immediately  preceding  paragraph,
those  Persons who were  Holders at such  Record Date (or their duly  designated
proxies),  and only those  Persons,  shall be  entitled  to revoke  any  consent
previously given,  whether or not such Persons continue to be Holders after such
Record Date.  No such consent  shall be valid or effective for more than 90 days
after such Record Date unless consents from Holders of the requisite  percentage
in  principal   amount  of  outstanding   Notes   required   hereunder  for  the
effectiveness of such consents shall have also been given and not revoked within
such 90 day period.

         SECTION 9.05.  Notation on or Exchange of Notes.

         If an amendment,  supplement or waiver changes the terms of a Note, the
Trustee may require  the Holder of such Note to deliver it to the  Trustee.  The
Trustee may place an  appropriate  notation on the Note about the changed  terms
and return it to the  Holder.  Alternatively,  if the  Issuer or the  Trustee so

                                       57
<PAGE>
determines, the Issuer in exchange for the Note shall issue and the Trustee upon
receipt  of a  written  order  in the  form of an  Officers'  Certificate  shall
authenticate a new Note that reflects the changed terms.

         SECTION 9.06.  Trustee To Sign Amendments, Etc.

         The Trustee shall execute any amendment,  supplement or waiver approved
by the Board of Directors of the Issuer and authorized  pursuant to this Article
Nine;  provided,  however,  that the Trustee may, but shall not be obligated to,
execute any such amendment, supplement or waiver which affects the Trustee's own
rights, duties or immunities under this Indenture.  In executing such supplement
or waiver the  Trustee  shall be  entitled  to receive  security  and  indemnity
satisfactory  to it, and shall be fully  protected in relying upon an Opinion of
Counsel and an  Officers'  Certificate  of the Issuer,  each stating that (a) no
Event of  Default  shall  occur as a result  of such  amendment,  supplement  or
waiver, (b) such amendment,  supplement or waiver has been approved by the Board
of Directors of the Issuer and (c) the execution of any amendment, supplement or
waiver  authorized  pursuant to this Article Nine is  authorized or permitted by
this  Indenture,  provided the legal counsel  delivering such Opinion of Counsel
may rely as to  matters  of fact on one or more  Officers'  Certificates  of the
Issuer. Such Opinion of Counsel shall not be an expense of the Trustee.

         SECTION  9.07.  Evidence  of  Amendments,  Supplements,  Waivers.  This
Indenture,  the Notes,  the  Guarantees  and the Security  Documents may only be
amended,  supplemented  or  waived  by  a  written  instrument  duly  signed  as
contemplated in Section 9.01 or 9.02.

                                   ARTICLE TEN

                                  MISCELLANEOUS

         SECTION 10.01.  TIA Controls.

         If any provision of this Indenture limits, qualifies, or conflicts with
another provision which is required to be included in this Indenture by the TIA,
the required provision shall control; provided, however, that this Section 10.01
shall not of itself  require  that this  Indenture  or the Trustee be  qualified
under the TIA or constitute any admission or  acknowledgment by any party hereto
that any such qualification is required prior to the time this Indenture and the
Trustee are required by the TIA to be so qualified.

         SECTION 10.02.  Notices.

         Any notices or other  communications  required or  permitted  hereunder
shall be in writing,  and shall be sufficiently  given if made by hand delivery,
by telex, by telecopier or registered or certified mail, postage prepaid, return
receipt requested, addressed as follows:

                  if to the Issuer or any Subsidiary Guarantor:

                           c/o Abraxas Petroleum Corporation
                           500 North Loop 1604 East
                           Suite 100
                           San Antonio, Texas  78232
                           Telecopier Number:  (210) 490-8816

                           Attn:  Chief Executive Officer

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<PAGE>
                  if to the Trustee:

                           Norwest Bank Minnesota, National Association
                           Sixth and Marquette
                           Minneapolis, Minnesota 55479-0069
                           Attn:  Corporate Trust Department
                           Telephone Number:  (612) 667-9764

         Each of the  Issuer,  the  Subsidiary  Guarantors  and the  Trustee  by
written notice to the others may designate additional or different addresses for
notices  to  such  Person.  Any  notice  or  communication  to the  Issuer,  the
Subsidiary  Guarantors or the Trustee shall be deemed to have been given or made
as of the date so delivered if hand  delivered;  when answered back, if telexed;
when receipt is acknowledged, if faxed; and five (5) calendar days after mailing
if sent by registered or certified  mail,  postage prepaid (except that a notice
of change of  address  shall not be  deemed to have been  given  until  actually
received by the addressee).

         Any notice or  communication  mailed to a Holder shall be mailed to him
by first  class mail or other  equivalent  means at his address as it appears on
the registration  books of the Registrar ten (10) days prior to such mailing and
shall be sufficiently given to him if so mailed within the time prescribed.

         Failure to mail a notice or  communication to a Holder or any defect in
it shall not affect its sufficiency  with respect to other Holders.  If a notice
or  communication  is mailed in the manner  provided  above,  it is duly  given,
whether or not the addressee  receives it, except for notices or  communications
to the Trustee which shall be effective only upon actual receipt thereof.

         SECTION 10.03.  Communications by Holders with Other Holders.

         Holders may  communicate  pursuant  to TIA ' 312(b) with other  Holders
with respect to their rights under this Indenture or the Notes. The Issuer,  the
Subsidiary  Guarantors,  the Trustee,  the  Registrar and any other Person shall
have the protection of TIA ' 312(c).

         SECTION 10.04.  Certificate and Opinion as to Conditions Precedent.

         Upon any  request or  application  by the Issuer to the Trustee to take
any action under this Indenture, the Issuer shall furnish to the Trustee:

                  (1)  an   Officers'   Certificate,   in  form  and   substance
         satisfactory  to the  Trustee,  stating  that,  in the  opinion  of the
         signers,  all  conditions  precedent to be performed by the Issuer,  if
         any,  provided for in this  Indenture  relating to the proposed  action
         have been complied with; and

                  (2) an Opinion of Counsel stating that, in the opinion of such
         counsel,  all such conditions  precedent to be performed by the Issuer,
         if any, provided for in this Indenture  relating to the proposed action
         have been complied with (which counsel, as to factual matters, may rely
         on an Officers' Certificate).

         SECTION 10.05.  Statements Required in Certificate or Opinion.

         Each certificate or opinion with respect to compliance with a condition
or covenant provided for in this Indenture, other than the Officers' Certificate
required by Section 4.06, shall include:

                  (1) a statement  that the Person  making such  certificate  or
         opinion has read such covenant or condition;

                  (2) a  brief  statement  as to the  nature  and  scope  of the
         examination  or  investigation  upon which the  statements  or opinions
         contained in such certificate or opinion are based;

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                  (3) a statement  that,  in the opinion of such Person,  he has
         made such examination or  investigation  as is reasonably  necessary to
         enable  him to express  an  informed  opinion as to whether or not such
         covenant or condition has been complied with; and

                  (4) a  statement  as to whether or not, in the opinion of each
         such Person, such condition or covenant has been complied with.

         SECTION 10.06.  Rules by Trustee, Paying Agent, Registrar.

         The Trustee may make reasonable  rules in accordance with the Trustee's
customary  practices for action by or at a meeting of Holders.  The Paying Agent
or Registrar may make reasonable rules for its functions.

         SECTION 10.07.  Legal Holidays.

         A "Legal Holiday" used with respect to a particular place of payment is
a Saturday,  a Sunday or a day on which banking  institutions  in New York,  New
York or at such place of payment are not required to be open.  If a payment date
is a Legal Holiday at such place,  payment may be made at such place on the next
succeeding day that is not a Legal Holiday, and no interest shall accrue for the
intervening period.

         SECTION 10.08.  Governing Law.

         THIS INDENTURE,  THE NOTES AND THE GUARANTEES  SHALL BE GOVERNED BY AND
CONSTRUED  IN  ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW  YORK.  Each of the
parties hereto agrees to submit to the  jurisdiction  of the courts of the State
of New York in any  action or  proceeding  arising  out of or  relating  to this
Indenture.

         SECTION 10.09.  No Adverse Interpretation of Other Agreements.

         This Indenture may not be used to interpret another indenture,  loan or
debt  agreement  of the  Issuer,  any  Subsidiary  Guarantor  or  any  of  their
Subsidiaries.  Any such  indenture,  loan or debt  agreement  may not be used to
interpret this Indenture.

         SECTION 10.10.  No Personal Liability.

         No director,  officer, employee or stockholder,  as such, of the Issuer
or any  Subsidiary  Guarantor,  as  such,  shall  have  any  liability  for  any
obligations  of the Issuer or any  Subsidiary  Guarantor  under the Notes,  this
Indenture,  the Guarantees or the Registration Rights Agreement or for any claim
based on, in respect of, or by reason of, such  obligations  or their  creation.
Each Holder of Notes by accepting a Note waives and releases all such liability.
The waiver and release  are part of the  consideration  for the  issuance of the
Notes.

         SECTION 10.11.  Successors.

         All  agreements  of the Issuer and the  Subsidiary  Guarantors  in this
Indenture,  the Notes and the Guarantees shall bind their successors.  Except as
permitted  under Article Five,  neither the Issuer nor any Subsidiary  Guarantor
may assign any or all of its rights hereunder.  All agreements of the Trustee in
this Indenture shall bind its successors.

         SECTION 10.12.  Duplicate Originals.

         All  parties  may sign any  number of copies  of this  Indenture.  Each
signed copy shall be an original,  but all of them together shall  represent the
same agreement.

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         SECTION 10.13.  Severability.

         In case any one or more of the  provisions in this  Indenture or in the
Notes shall be held invalid,  illegal or  unenforceable,  in any respect for any
reason, the validity, legality and enforceability of any such provision in every
other respect and of the remaining  provisions  shall not in any way be affected
or impaired  thereby,  it being intended that all of the provisions hereof shall
be enforceable to the full extent permitted by law.

         SECTION 10.14.  Independence of Covenants.

         All covenants and  agreements in this  Indenture and the Notes shall be
given  independent  effect so that if any particular  action or condition is not
permitted  by any of such  covenants,  the fact that it would be permitted by an
exception to, or otherwise be within the limitations of, another  covenant shall
not avoid the  occurrence  of a Default or an Event of Default if such action is
taken or condition exists.

         SECTION  10.15.  Currency  Indemnity.  This  is an  international  loan
transaction in which the  specification of U.S.  Dollars is of the essence,  and
the  stipulated  currency  shall in each instance be the currency of account and
payment in all  instances.  A payment  obligation in U.S.  Dollars  hereunder or
under the Notes (the "Original  Currency")  shall not be discharged by an amount
paid in  another  currency  (the  "Other  Currency"),  whether  pursuant  to any
judgment  expressed in or converted  into any Other Currency or in another place
except to the extent  that such  tender or  recovery  results  in the  effective
receipt by the Holders of the full amount of the Original Currency payable to it
under this Indenture or the Notes.  If for the purpose of obtaining  judgment in
any  court it is  necessary  to  convert  a sum due  hereunder  in the  Original
Currency  into the Other  Currency,  the rate of exchange  that shall be applied
shall be that at which in accordance with normal banking  procedures the Trustee
could purchase Original Currency at its principal office with the Other Currency
on the Business Day next  preceding  the day on which such judgment is rendered.
The  obligation  of the Issuer and the  Subsidiary  Guarantors in respect of any
such sum due from them to the Trustee or any Holder hereunder or under any other
document  (in  this  Section   10.15   called  an  "Entitled   Person")   shall,
notwithstanding  the  rate  of  exchange  actually  applied  in  rendering  such
judgment,  be  discharged  only to the extent that on the Business Day following
receipt by such  Entitled  Person of any sum adjudged to be due hereunder in the
Other  Currency  such  Entitled  Person may in  accordance  with normal  banking
procedures  purchase and  transfer  the  Original  Currency to New York with the
amount of the  judgment  currency so adjudged to be due;  and the Issuer and the
Subsidiary  Guarantors each hereby, as a separate obligation and notwithstanding
any such  judgment,  agrees  jointly and  severally to indemnify  such  Entitled
Person  against,  and to pay such  Entitled  Person on demand,  in the  Original
Currency,  the amount (if any) by which the sum  originally due to such Entitled
Person in the  Original  Currency  hereunder  exceeds the amount of the Original
Currency so purchased and transferred.

                                 ARTICLE ELEVEN

                               GUARANTEE OF NOTES

         SECTION 11.01.  Unconditional Guarantee.

         Subject to the  provisions  of this  Article  Eleven,  each  Subsidiary
Guarantor,   if  any,  hereby,   jointly  and  severally,   unconditionally  and
irrevocably  guarantees,  on a senior  basis (such  guarantee  to be referred to
herein as a "Guarantee") to each Holder of a Note authenticated and delivered by
the Trustee and to the Trustee and its successors and assigns,  irrespective  of
the validity and enforceability of this Indenture,  the Notes or the obligations
of the  Issuer  or  any  Subsidiary  Guarantor  to the  Holders  or the  Trustee
hereunder or  thereunder,  that:  (a) the  principal  of,  premium,  if any, and
interest on the Notes (and any Liquidated Damages payable thereon) shall be duly
and punctually  paid in full when due,  whether at maturity,  upon redemption at
the option of Holders pursuant to the provisions of the Notes relating  thereto,
by acceleration or otherwise,  and interest on the overdue principal and (to the
extent  permitted  by  law)  interest,  if  any,  on the  Notes  and  all  other
obligations  of the Issuer or the  Subsidiary  Guarantors  to the Holders or the
Trustee hereunder or thereunder (including amounts due the Trustee under Section
7.07  hereof)  and all  other  obligations  shall  be  promptly  paid in full or
performed,  all in accordance with the terms hereof and thereof; and (b) in case
of any extension of time of payment or renewal of any Notes or any of such other

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obligations,  the same shall be promptly  paid in full when due or  performed in
accordance with the terms of the extension or renewal,  whether at maturity,  by
acceleration or otherwise. Failing payment when due of any amount so guaranteed,
or failing  performance  of any other  obligation  of the Issuer to the  Holders
under this Indenture or under the Notes,  for whatever  reason,  each Subsidiary
Guarantor shall be obligated jointly or severally to pay or to perform, or cause
the  performance  of,  the same  immediately.  An Event of  Default  under  this
Indenture  or the Notes shall  entitle the  Holders of Notes to  accelerate  the
obligations of the Subsidiary Guarantors hereunder in the same manner and to the
same extent as the obligations of the Issuer.

         Each of the Subsidiary  Guarantors  hereby agrees that its  obligations
hereunder shall be  unconditional,  irrespective of the validity,  regularity or
enforceability  of the Notes or this  Indenture,  the  absence  of any action to
enforce the same,  any waiver or consent by any Holder of the Notes with respect
to any  provisions  hereof or  thereof,  any  release  of any  other  Subsidiary
Guarantor,  the  recovery of any  judgment  against  the  Issuer,  any action to
enforce the same,  whether or not a Guarantee is affixed to any particular Note,
or any other circumstance which might otherwise  constitute a legal or equitable
discharge or defense of a guarantor.  Each of the Subsidiary  Guarantors  hereby
waives the  benefit of  diligence,  presentment,  demand of  payment,  filing of
claims with a court in the event of insolvency or bankruptcy of the Issuer,  any
right to require a proceeding first against the Issuer,  protest, notice and all
demands  whatsoever  and covenants  that its  Guarantee  shall not be discharged
except by complete  performance of the obligations  contained in the Notes, this
Indenture and this  Guarantee.  This Guarantee is a guarantee of payment and not
of  collection.  If any  Holder  or the  Trustee  is  required  by any  court or
otherwise  to  return  to the  Issuer  or to any  Subsidiary  Guarantor,  or any
custodian,  trustee,  liquidator or other similar official acting in relation to
the Issuer or such Subsidiary  Guarantor,  any amount paid by the Issuer or such
Subsidiary  Guarantor  to the Trustee or such  Holder,  this  Guarantee,  to the
extent  theretofore  discharged,  shall be  reinstated in full force and effect.
Each Subsidiary  Guarantor  further agrees that, as between it, on the one hand,
and the Holders of Notes and the Trustee, on the other hand, (a) subject to this
Article  Eleven,  the  maturity  of the  obligations  guaranteed  hereby  may be
accelerated  as  provided  in  Article  Six  hereof  for  the  purposes  of this
Guarantee,  notwithstanding any stay, injunction or other prohibition preventing
such acceleration in respect of the obligations  guaranteed  hereby,  and (b) in
the event of any  acceleration  of such  obligations  as provided in Article Six
hereof, such obligations (whether or not due and payable) shall forthwith become
due and payable by the Subsidiary Guarantors for the purpose of this Guarantee.

         No stockholder,  officer,  director,  employee or  incorporator,  past,
present or future, or any Subsidiary Guarantor, as such, shall have any personal
liability  under this  Guarantee  solely by reason of his,  her or its status as
such stockholder, officer, director, employee or incorporator.

         Each Subsidiary  Guarantor that makes a payment or  distribution  under
its Guarantee  shall be entitled to a  contribution  from each other  Subsidiary
Guarantor, determined in accordance with GAAP.

         SECTION 11.02.  Limitations on Guarantees.

         The obligations of each Subsidiary Guarantor in the United States under
its Guarantee 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  this  Indenture,  will  result  in the  obligations  of such
Subsidiary   Guarantor  under  the  Guarantee  not   constituting  a  fraudulent
conveyance or fraudulent transfer under federal or state law.

         SECTION 11.03.  Execution and Delivery of Guarantee.

         To further  evidence the  Guarantee  set forth in Section  11.01,  each
Subsidiary   Guarantor   hereby  agrees  that  a  notation  of  such  Guarantee,
substantially  in the form of Exhibit E herein,  shall be  endorsed on each Note
authenticated and delivered by the Trustee.  Such Guarantee shall be executed on
behalf of each Subsidiary  Guarantor by either manual or facsimile  signature of
two Officers of each  Subsidiary  Guarantor,  each of whom, in each case,  shall
have been duly authorized to so execute by all requisite  corporate action.  The
validity and  enforceability  of any Guarantee shall not be affected by the fact
that it is not affixed to any particular Note.

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         Each of the Subsidiary  Guarantors hereby agrees that its Guarantee set
forth in Section 11.01 shall remain in full force and effect notwithstanding any
failure to endorse on each Note a notation of such Guarantee.

         If an Officer of a  Subsidiary  Guarantor  whose  signature  is on this
Indenture  or a  Guarantee  no longer  holds that office at the time the Trustee
authenticates  the Note on  which  such  Guarantee  is  endorsed  or at any time
thereafter,  such Subsidiary  Guarantor's  Guarantee of such Note shall be valid
nevertheless.

         The  delivery  of any Note by the  Trustee,  after  the  authentication
thereof  hereunder,  shall constitute due delivery of any Guarantee set forth in
this Indenture on behalf of each Subsidiary Guarantor.

         SECTION 11.04.  Release of a Subsidiary Guarantor.

         (a) If no Default exists or would exist under this Indenture,  upon the
sale or disposition of all of the Capital Stock of a Subsidiary Guarantor by the
Issuer or a Restricted Subsidiary of the Issuer in a transaction constituting an
Asset Sale the Net Cash Proceeds of which are applied in accordance with Section
4.16, or upon the consolidation or merger of a Subsidiary Guarantor with or into
any Person in  compliance  with  Article  Five (in each case,  other than to the
Issuer  or  an  Affiliate  of  the  Issuer  or a  Restricted  Subsidiary),  such
Subsidiary  Guarantor and each Subsidiary of such  Subsidiary  Guarantor that is
also a Subsidiary  Guarantor shall be deemed released from all obligations under
this  Article  Eleven  without  any further  action  required on the part of the
Trustee or any Holder and all Collateral  owned by such Person shall be released
to the extent  set forth in Section  12.04;  provided,  however,  that each such
Subsidiary  Guarantor is sold or disposed of in accordance  with this Indenture.
Any Subsidiary Guarantor not so released or the entity surviving such Subsidiary
Guarantor,  as  applicable,  shall  remain or be liable  under its  Guarantee as
provided in this Article Eleven.

         (b) The Trustee shall deliver to the Issuer an  appropriate  instrument
evidencing  the  release of a  Subsidiary  Guarantor  upon  receipt of a written
request by the Issuer or such Subsidiary  Guarantor  accompanied by an Officers'
Certificate and an Opinion of Counsel  certifying as to the compliance with this
Section 11.04, provided the legal counsel delivering such Opinion of Counsel may
rely as to matters of fact on one or more Officers' Certificates of the Issuer.

         The Trustee  shall execute any  documents  reasonably  requested by the
Issuer or a  Subsidiary  Guarantor  in order to  evidence  the  release  of such
Subsidiary  Guarantor from its obligations  under its Guarantee  endorsed on the
Notes and under this Article Eleven.

         Except as set forth in Articles  Four and Five and this Section  11.04,
nothing  contained in this  Indenture  or in any of the Notes shall  prevent any
consolidation  or merger of a  Subsidiary  Guarantor  with or into the Issuer or
another  Subsidiary  Guarantor or shall  prevent any sale or  conveyance  of the
property  of a  Subsidiary  Guarantor  as an  entirety  or  substantially  as an
entirety to the Issuer or another Subsidiary Guarantor.

         SECTION 11.05.  Waiver of Subrogation.

         Until this  Indenture is discharged and all of the Notes are discharged
and paid in full, each Subsidiary Guarantor hereby irrevocably waives and agrees
not to exercise any claim or other rights which it may now or hereafter  acquire
against  the Issuer  that  arise from the  existence,  payment,  performance  or
enforcement  of the Issuer's  obligations  under the Notes or this Indenture and
such Subsidiary Guarantor's obligations under this Guarantee and this Indenture,
in any such instance including,  without  limitation,  any right of subrogation,
reimbursement,  exoneration,  contribution,  indemnification,  and any  right to
participate in any claim or remedy of the Holders against the Issuer, whether or
not such claim, remedy or right arises in equity, or under contract,  statute or
common law, including, without limitation, the right to take or receive from the
Issuer,  directly or  indirectly,  in cash or other property or by set-off or in
any other manner,  payment or security on account of such claim or other rights.
If any amount  shall be paid to any  Subsidiary  Guarantor  in  violation of the
preceding  sentence and any amounts owing to the Trustee or the Holders of Notes


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under or in connection with the Notes, this Indenture,  or any other document or
instrument delivered under or in connection with such agreements or instruments,
shall not have been paid in full,  such  amount  shall have been  deemed to have
been paid to such Subsidiary Guarantor for the benefit of, and held in trust for
the benefit of, the  Trustee or the Holders and shall  forthwith  be paid to the
Trustee for the benefit of itself or such  Holders to be credited and applied to
the  obligations  in favor of the  Trustee or the  Holders,  as the case may be,
whether  matured or unmatured,  in accordance  with the terms of this Indenture.
Each Subsidiary Guarantor  acknowledges that it will receive direct and indirect
benefits from the financing arrangements contemplated by this Indenture and that
the waiver set forth in this Section 11.05 is knowingly made in contemplation of
such benefits.

         SECTION 11.06.  Immediate Payment.

         Each  Subsidiary  Guarantor  agrees to make  immediate  payment  to the
Trustee  on behalf of the  Holders  of all  Obligations  owing or payable to the
respective  Holders upon receipt of a demand for payment therefor by the Trustee
to such Subsidiary Guarantor in writing.

         SECTION 11.07.  No Set-Off.

         Each payment to be made by a Subsidiary  Guarantor hereunder in respect
of the Obligations  shall be payable in the currency or currencies in which such
Obligations are denominated,  and shall be made without  set-off,  counterclaim,
reduction or diminution of any kind or nature.

         SECTION 11.08.  Obligations Absolute.

         The obligations of each Subsidiary Guarantor hereunder are and shall be
absolute and  unconditional  and any monies or amounts  expressed to be owing or
payable by each Subsidiary Guarantor hereunder which may not be recoverable from
such Subsidiary  Guarantor on the basis of a Guarantee shall be recoverable from
such Subsidiary  Guarantor as a primary obligor and principal  debtor in respect
thereof.

         SECTION 11.09.  Obligations Continuing.

         The  obligations  of  each  Subsidiary  Guarantor  hereunder  shall  be
continuing  and shall remain in full force and effect until all the  obligations
have been paid and satisfied in full. Each Subsidiary  Guarantor agrees with the
Trustee that it will from time to time deliver to the Trustee  suitable  written
acknowledgments  of its  continued  liability  hereunder  and  under  any  other
instrument or  instruments in such form as counsel to the Trustee may advise and
as will  prevent  any  action  brought  against  it in  respect  of any  default
hereunder  being barred by any statute of limitations  now or hereafter in force
and, in the event of the failure of a  Subsidiary  Guarantor so to do, it hereby
irrevocably  appoints  the Trustee  the  attorney  and agent of such  Subsidiary
Guarantor  to  make,   execute  and  deliver  such  written   acknowledgment  or
acknowledgments  or other  instruments as may from time to time become necessary
or advisable,  in the judgment of the Trustee on the advice of counsel, to fully
maintain and keep in force the liability of such Subsidiary Guarantor hereunder;
provided, however, that notwithstanding anything herein to the contrary, nothing
in this  Section  11.09 shall be  construed  to obligate the Trustee to take any
action  not  otherwise  allowed  by this  Indenture  or the  TIA,  and  under no
circumstances  shall Trustee be required to take any actions in compliance  with
this Section 11.09 which would incur any liability whatsoever under the terms of
this  Indenture  or  otherwise  except to the extent  that it is  provided  with
security or indemnity  satisfactory to it, nor shall Trustee's actions hereunder
be deemed to be a breach of any other provision of this Indenture.

         SECTION 11.10.  Obligations Not Reduced.

         The  obligations of each  Subsidiary  Guarantor  hereunder shall not be
satisfied,  reduced  or  discharged  solely by the  payment  of such  principal,
premium,  if any, interest,  fees and other monies or amounts as may at any time
prior to discharge of this Indenture pursuant to Article 8 be or become owing or
payable under or by virtue of or otherwise in connection  with the Notes or this
Indenture.

         SECTION 11.11.  Obligations Reinstated.

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         The obligations of each Subsidiary  Guarantor  hereunder shall continue
to be effective or shall be  reinstated,  as the case may be, if at any time any
payment which would  otherwise  have reduced the  obligations  of any Subsidiary
Guarantor  hereunder  (whether such payment shall have been made by or on behalf
of the Issuer or by or on behalf of a  Subsidiary  Guarantor)  is  rescinded  or
reclaimed from any of the Holders upon the insolvency,  bankruptcy,  liquidation
or reorganization of the Issuer or any Subsidiary Guarantor or otherwise, all as
though such  payment had not been made.  If demand for, or  acceleration  of the
time for,  payment  by the  Issuer is stayed  upon the  insolvency,  bankruptcy,
liquidation or  reorganization of the Issuer,  all such  Indebtedness  otherwise
subject to demand for payment or  acceleration  shall  nonetheless be payable by
each Subsidiary Guarantor as provided herein.

         SECTION 11.12.  Obligations Not Affected.

         The  obligations of each  Subsidiary  Guarantor  hereunder shall not be
affected,  impaired or  diminished  in any way by any act,  omission,  matter or
thing  whatsoever,  occurring  before,  upon or after  any  demand  for  payment
hereunder (and whether or not known or consented to by any Subsidiary  Guarantor
or any of the Holders) which,  but for this provision,  might constitute a whole
or partial  defense to a claim  against any  Subsidiary  Guarantor  hereunder or
might operate to release or otherwise  exonerate any  Subsidiary  Guarantor from
any of its obligations  hereunder or otherwise affect such obligations,  whether
occasioned  by default of any of the Holders or  otherwise,  including,  without
limitation:

                  (a) any limitation of status or power, disability,  incapacity
         or other  circumstance  relating  to the  Issuer or any  other  Person,
         including  any  insolvency,  bankruptcy,  liquidation,  reorganization,
         readjustment,  composition, dissolution, winding-up or other proceeding
         involving or affecting the Issuer or any other Person;

                  (b) any irregularity,  defect,  unenforceability or invalidity
         in respect of any indebtedness or other obligation of the Issuer or any
         other Person under this  Indenture,  the Notes or any other document or
         instrument;

                  (c) any failure of the Issuer, whether or not without fault on
         its part,  to  perform  or comply  with any of the  provisions  of this
         Indenture  or the Notes,  or to give  notice  thereof  to a  Subsidiary
         Guarantor;

                  (d) the taking or  enforcing or  exercising  or the refusal or
         neglect  to take or  enforce or  exercise  any right or remedy  from or
         against the Issuer or any other  Person or their  respective  assets or
         the release or discharge of any such right or remedy;

                  (e) the granting of time, renewals,  extensions,  compromises,
         concessions, waivers, releases, discharges and other indulgences to the
         Issuer or any other Person;

                  (f) any change in the time,  manner or place of payment of, or
         in any  other  term  of,  any of the  Notes,  or any  other  amendment,
         variation,  supplement,  replacement  or waiver  of, or any  consent to
         departure from, any of the Notes or this Indenture,  including, without
         limitation,  any  increase or decrease  in the  principal  amount of or
         premium, if any, or interest on any of the Notes;

                  (g) any  change  in the  ownership,  control,  name,  objects,
         businesses,  assets, capital structure or constitution of the Issuer or
         a Subsidiary Guarantor;

                  (h) any merger or  amalgamation  of the Issuer or a Subsidiary
         Guarantor with any Person or Persons;

                  (i)  the  occurrence  of  any  change  in  the  laws,   rules,
         regulations or ordinances of any  jurisdiction by any present or future
         action  of any  governmental  authority  or  court  amending,  varying,
         reducing or otherwise  affecting,  or purporting to amend, vary, reduce
         or otherwise  affect,  any of the  Obligations or the  obligations of a
         Subsidiary Guarantor under its Guarantee; and

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                  (j)  any  other   circumstance,   including   release  of  the
         Subsidiary Guarantor pursuant to Section 11.04 (other than by complete,
         irrevocable  payment)  that  might  otherwise  constitute  a  legal  or
         equitable  discharge or defense of the Issuer  under this  Indenture or
         the Notes or of a  Subsidiary  Guarantor  in respect  of its  Guarantee
         hereunder.

         SECTION 11.13.  Waiver.

         Without in any way limiting the  provisions  of Section  11.01  hereof,
each Subsidiary  Guarantor hereby waives notice of acceptance hereof,  notice of
any liability of any Subsidiary Guarantor hereunder, notice or proof of reliance
by the Holders upon the obligations of any Subsidiary Guarantor  hereunder,  and
diligence,  presentment,  demand for payment on the Issuer,  protest,  notice of
dishonor  or  non-payment  of  any  of  the  Obligations,  or  other  notice  or
formalities to the Issuer or any Subsidiary Guarantor of any kind whatsoever.

         SECTION 11.14.  No Obligation To Take Action Against the Issuer.

         Neither the Trustee nor any other Person shall have any  obligation  to
enforce or exhaust  any rights or  remedies or to take any other steps under any
security  for the  Obligations  or against the Issuer or any other Person or any
Property  of the Issuer or any other  Person  before the  Trustee is entitled to
demand  payment and  performance  by any or all  Subsidiary  Guarantors of their
liabilities and obligations under their Guarantees or under this Indenture.

         SECTION 11.15.  Dealing with the Issuer and Others.

         The  Holders,  without  releasing,  discharging,  limiting or otherwise
affecting in whole or in part the  obligations and liabilities of any Subsidiary
Guarantor  hereunder  and  without  the  consent of or notice to any  Subsidiary
Guarantor, may

                  (a)   grant   time,   renewals,    extensions,    compromises,
         concessions, waivers, releases, discharges and other indulgences to the
         Issuer or any other Person;

                  (b) take or abstain from taking  security or  collateral  from
         the  Issuer  or  any  other  Person  or  from  perfecting  security  or
         collateral of the Issuer or any other Person;

                  (c)  release,  discharge,   compromise,  realize,  enforce  or
         otherwise  deal  with or do any act or  thing  in  respect  of (with or
         without  consideration)  any and all  collateral,  mortgages  or  other
         security  given by the Issuer or any third  party  with  respect to the
         obligations or matters contemplated by this Indenture or the Notes;

                  (d)      accept compromises or arrangements from the Issuer;

                  (e) apply all monies at any time  received  from the Issuer or
         from any security upon such part of the  Obligations as the Holders may
         see fit or change any such application in whole or in part from time to
         time as the Holders may see fit; and

                  (f)  otherwise  deal with,  or waive or modify  their right to
         deal with,  the Issuer and all other  Persons  and any  security as the
         Holders or the Trustee may see fit.

         SECTION 11.16.  Default and Enforcement.

         If any  Subsidiary  Guarantor  fails to pay in accordance  with Section
11.06  hereof,  the Trustee may proceed in its name as trustee  hereunder in the
enforcement  of  the  Guarantee  of  any  such  Subsidiary  Guarantor  and  such
Subsidiary  Guarantor's  obligations  thereunder  and  hereunder  by any  remedy
provided by law, whether by legal proceedings or otherwise,  and to recover from
such Subsidiary Guarantor the obligations.

         SECTION 11.17.  Acknowledgment.

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         Each Subsidiary  Guarantor  hereby  acknowledges  communication  of the
terms of this Indenture and the Notes and consents to and approves of the same.

         SECTION 11.18.  Costs and Expenses.

         Each  Subsidiary  Guarantor  shall pay on demand by the Trustee any and
all costs, fees and expenses  (including,  without  limitation,  legal fees on a
solicitor and client basis)  incurred by the Trustee,  its agents,  advisors and
counsel  or any of the  Holders  in  enforcing  any of their  rights  under  any
Guarantee.

         SECTION 11.19.  No Merger or Waiver; Cumulative Remedies.

         No Guarantee  shall operate by way of merger of any of the  obligations
of  a  Subsidiary  Guarantor  under  any  other  agreement,  including,  without
limitation,  this Indenture.  No failure to exercise and no delay in exercising,
on the part of the Trustee or the Holders, any right, remedy, power or privilege
hereunder  or under  this  Indenture  or the  Notes,  shall  operate as a waiver
thereof; nor shall any single or partial exercise of any right, remedy, power or
privilege  hereunder or under this  Indenture or the Notes preclude any other or
further  exercise thereof or the exercise of any other right,  remedy,  power or
privilege.  The rights,  remedies,  powers and  privileges  in the Guarantee and
under this Indenture,  the Notes and any other document or instrument  between a
Subsidiary  Guarantor  and/or the Issuer and the Trustee are  cumulative and not
exclusive of any rights, remedies, powers and privilege provided by law.

         SECTION 11.20.  Survival of Obligations.

         Without  prejudice to the survival of any of the other  obligations  of
each  Subsidiary  Guarantor  hereunder,   the  obligations  of  each  Subsidiary
Guarantor  under  Section  11.01  shall  survive  the  payment  in  full  of the
Obligations and shall be enforceable  against such Subsidiary  Guarantor without
regard  to and  without  giving  effect  to any  defense,  right  of  offset  or
counterclaim  available  to or  which  may  be  asserted  by the  Issuer  or any
Subsidiary Guarantor.

         SECTION 11.21.  Guarantee in Addition to Other Obligations.

         The  obligations of each  Subsidiary  Guarantor under its Guarantee and
this  Indenture  are in  addition  to and  not in  substitution  for  any  other
obligations  to the  Trustee  or to  any of the  Holders  in  relation  to  this
Indenture or the Notes and any guarantees or security at any time held by or for
the benefit of any of them.

         SECTION 11.22.  Severability.

         Any   provision  of  this  Article   Eleven  which  is   prohibited  or
unenforceable in any jurisdiction shall not invalidate the remaining  provisions
and any such  prohibition  or  unenforceability  in any  jurisdiction  shall not
invalidate  or render  unenforceable  such  provision in any other  jurisdiction
unless its  removal  would  substantially  defeat the basic  intent,  spirit and
purpose of this Indenture and this Article Eleven.

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                                 ARTICLE TWELVE

                                    SECURITY

         SECTION 12.01.  Grant of Security Interest; Remedies.

         (a) In order to secure the  obligations  of the Issuer  hereunder,  the
Issuer hereby covenants to and to cause each Subsidiary Guarantor owning Oil and
Gas  Assets to  execute  and  deliver  on or before  the Issue  Date one or more
Mortgages and other Security Documents,  as reasonably determined by the Trustee
to obtain a Lien on  substantially  all of the Oil and Gas  Assets of the Issuer
and the  Subsidiary  Guarantors as of the Issue Date and on the Capital Stock of
Grey Wolf owned by the Issuer and Canadian Abraxas. Each such Security Document,
when executed and delivered,  shall be deemed hereby  incorporated  by reference
herein to the same extent and as fully as if set forth in their entirety at this
place,  and reference is made hereby to each such  Security  Document for a more
complete  description  of the terms and  provisions  thereof.  Each  Holder,  by
accepting a Note,  agrees to all of the terms and  provisions  of each  Security
Document  and the  Trustee  agrees to all of the terms  and  provisions  of each
Security Document.

         (b) If (i) the Notes become due and payable  prior to the Maturity Date
or are not paid in full at the  Maturity  Date or (ii) an Event of  Default  has
occurred and is continuing,  the Trustee may take all actions it deems necessary
or appropriate,  including,  but not limited to, foreclosing upon the Collateral
in  accordance  with the Security  Documents  and  applicable  law. The proceeds
received from the sale of any Collateral that is the subject of a foreclosure or
collection suit shall be applied in accordance with the priorities Section 6.10.
The Trustee has the power to institute and maintain  such suits and  proceedings
as it may deem expedient to prevent impairment of, or to preserve or protect its
and the Holders'  interest in, the Collateral in the manner set forth in Article
Seven.

         (c) Unless an Event of Default shall have  occurred and be  continuing,
the  Issuer  and the  Subsidiary  Guarantors  will  have the  right to remain in
possession and retain  exclusive  control of the  Collateral  securing the Notes
(other than any cash, securities,  obligations and Cash Equivalents constituting
part of the Collateral and deposited with the Trustee in the Collateral  Account
and other than as set forth in the Security  Documents),  to freely  operate the
Collateral  and to  collect,  invest  and  dispose  of  any  income  thereon  or
therefrom.

         SECTION 12.02.  Recording and Opinions.

         (a) The Issuer  shall take or cause to be taken all action  required to
perfect,  maintain,  preserve and protect the Lien in the Collateral  granted by
the Security Documents,  including,  without limitation, the filing of financing
statements, continuation statements and any instruments of further assurance, in
such manner and in such  places as may be required by law fully to preserve  and
protect the rights of the Holders and the Trustee  under this  Indenture and the
Security Documents to all property  comprising the Collateral.  The Issuer shall
from  time to  time  promptly  pay  all  financing  and  continuation  statement
recording and/or filing fees, charges and taxes relating to this Indenture,  the
Security Documents,  any amendments thereto and any other instruments of further
assurance required pursuant to the Security Documents.

         (b) The Issuer shall, to the extent required by the TIA, furnish to the
Trustee,  at closing  and at such other time as required by ' 314(b) of the TIA,
Opinion(s)  of Counsel  either (i)  substantially  to the  effect  that,  in the
opinion  of  such  counsel,  this  Indenture  and  the  grant  of a Lien  in the
Collateral  intended  to be  made  by  the  Security  Documents  and  all  other
instruments  of further  assurance,  including,  without  limitation,  financing
statements,  have been  properly  recorded and filed to the extent  necessary to
perfect the Lien in the Collateral created by the Security Documents (other than
as stated in such opinion) and reciting the details of such action,  and stating
that as to the Lien created pursuant to the Security Documents,  such recordings
and filings are the only recordings and filings necessary to give notice thereof
and that no  re-recordings  or refilings  are  necessary to maintain such notice
(other  than as stated in such  opinion),  or (ii) to the  effect  that,  in the
opinion of such  counsel,  no such action is necessary to perfect such Lien.  In
rendering such opinions,  legal counsel may rely on  certificates of officers of
the Issuer and/or the Restricted Subsidiaries with respect to factual matters.

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         (c) To the extent  required by the TIA, the Issuer shall furnish to the
Trustee on March 15th in each year, beginning with March 15, 2000, an Opinion of
Counsel,  dated as of such date,  either (i)(A)  stating that, in the opinion of
such counsel,  all required action has been taken with respect to the recording,
filing,  re-recording  and refiling of all  supplemental  indentures,  financing
statements,  continuation  statements  and other  documents  as is  necessary to
maintain  the Lien of the  Security  Documents  (other  than as  stated  in such
opinion) and reciting with respect to the Lien in the  Collateral the details of
such action or referring to prior  Opinions of Counsel in which such details are
given,  and (B) stating that, based on relevant laws as in effect on the date of
such Opinion of Counsel, all financing statements,  continuation  statements and
other  documents have been executed and filed that are necessary as of such date
and during the  succeeding  24 months  fully to maintain the Lien of the Holders
and the Trustee  hereunder and under the Security  Documents with respect to the
Collateral (other than as stated in such opinion),  or (ii) stating that, in the
opinion of such  counsel,  no such action is necessary to maintain such Lien. In
rendering such opinions,  legal counsel may rely on  certificates of officers of
the Issuer and/or the Restricted Subsidiaries with respect to factual matters.

         SECTION 12.03.  Release of Collateral.

                  (a) The Trustee,  in its  capacity as secured  party under the
Security  Documents,  shall  not at any time  release  Collateral  from the Lien
created by this Indenture and the Security  Documents  unless such release is in
accordance with the provisions of this Indenture and the Security Documents.

                  (b) At any time when an Event of Default  shall have  occurred
and be  continuing,  the Trustee  shall not  release  any Liens  granted for the
benefit of the Holders and no release of Collateral  given at such time pursuant
to the  provisions  of  this  Indenture  and the  Security  Documents  shall  be
effective as against the Holders of the Notes.

                  (c) The  release  of any  Collateral  from  the  terms  of the
Security  Documents  shall  not be  deemed to impair  the  security  under  this
Indenture in  contravention  of the  provisions  hereof if and to the extent the
Collateral is released pursuant to this Indenture and the Security Documents. To
the extent  applicable,  the Issuer  shall  cause TIA ' 314(d)  relating  to the
release of property from the Lien of the Security  Documents and relating to the
substitution  therefor  of any  property  to be  subjected  to the  Lien  of the
Security  Documents to be complied with. Any certificate or opinion  required by
TIA ' 314(d) may be made by an Officer of the Issuer,  except in cases where TIA
' 314(d)  requires that such  certificate  or opinion be made by an  independent
Person, which Person shall be an independent engineer, appraiser or other expert
selected or approved by the Trustee.  A Person is  "independent"  if such Person
(a) is in fact independent,  (b) does not have any direct financial  interest or
any material indirect  financial interest in the Issuer, any of its Subsidiaries
or in any Affiliate of the Issuer and (c) is not an officer, employee, promoter,
underwriter, trustee, partner or director or Person performing similar functions
to any of the  foregoing for either the Issuer or any of its  Subsidiaries.  The
Trustee shall be entitled to receive and rely upon a certificate provided by any
such Person  confirming  that such Person is  independent  within the  foregoing
definition.

         SECTION 12.04.  Specified Releases of Collateral.

                  (a) The Issuer and the Subsidiary Guarantors shall be entitled
to  obtain  a full  release  of all of the  Collateral  from  the  Lien  of this
Indenture and of the Security  Documents  upon  compliance  with the  conditions
precedent  set forth in Section  8.01 for  satisfaction  and  discharge  of this
Indenture or for Legal Defeasance pursuant to Section 8.01. Upon delivery by the
Issuer to the  Trustee of an  Officers'  Certificate  and an Opinion of Counsel,
each to the effect that such  conditions  precedent have been complied with (and
which may be the same Officers'  Certificate and Opinion of Counsel  required by
Article Eight),  the Trustee shall  forthwith take all necessary  action (at the
request  of and the  expense  of the  Issuer) to  release  and  reconvey  to the
relevant Person all of the Collateral,  and shall deliver such Collateral in its
possession  to the Issuer,  including,  without  limitation,  the  execution and
delivery of releases and satisfactions wherever required.

                  (b) Upon  compliance  by the Issuer  with the  conditions  set
forth below in respect of any sale,  transfer or other disposition,  the Trustee
shall  release the Released  Interests  from the Lien of this  Indenture and the
Security  Documents  and reconvey  the  Released  Interests to the Issuer or the
grantor of the Lien on such property. The Issuer will have the right to obtain a
release of items of Collateral (the "Released  Interests")  subject to any sale,

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transfer or other disposition,  or owned by a Restricted  Subsidiary the Capital
Stock of which is sold in compliance  with the terms of this Indenture such that
it ceases to be a Restricted Subsidiary, upon compliance with the condition that
such Issuer deliver to the Trustee the following:

         (i) a written notice in the form of an Officers'  Certificate  from the
         Issuer requesting the release of Released Interests:

                  (A) describing the proposed Released Interests,

                  (B)  specifying  the value of such Released  Interests or such
Capital Stock, as the case may be, on a date within 60 days of the Issuer notice
(the "Valuation Date"),

                  (C) stating that the  consideration to be received is at least
equal to the fair market value of the Released Interests,

                  (D) stating that the release of such Released  Interests  will
not interfere  with the Trustee's  ability to realize the value of the remaining
Collateral  and will not impair the  maintenance  and operation of the remaining
Collateral,

                  (E)  confirming  the sale or exchange  of, or an  agreement to
sell or exchange, such Released Interests or such Capital Stock, as the case may
be, is a bona fide sale to or exchange with a Person that is not an Affiliate of
the Issuer or, in the event  that such sale or  exchange  is to or with a Person
that  is an  Affiliate,  confirming  that  such  sale  or  exchange  is  made in
compliance with the provisions set forth in Section 4.11,

                  (F) in the event there is to be a contemporaneous substitution
of  property  for  the  Collateral  subject  to  the  sale,  transfer  or  other
disposition,  specifying  the  property  intended  to  be  substituted  for  the
Collateral to be disposed of;

         (ii) an Officers' Certificate of the Issuer stating that:

                  (A)  such  sale,   transfer  or  other   disposition  or  such
redesignation,  as the case may be,  complies  with the terms and  conditions of
this Indenture,  including the provisions set forth in Sections 4.10, 4.11, 4.14
and 4.16, to the extent any of the foregoing are applicable,

                  (B) all Net Cash  Proceeds  from the sale,  transfer  or other
disposition of any of the Released  Interests or such Capital Stock, as the case
may be, will be applied  pursuant to the provisions of this Indenture in respect
of the deposit of proceeds into the Collateral  Account as  contemplated by this
Indenture and in respect of Asset Sales, to the extent applicable,

                  (C)  there is no  Default  or Event of  Default  in  effect or
continuing  on the date  thereof  or the date of such  sale,  transfer  or other
disposition or such redesignation, as the case may be,

                  (D) the release of the Collateral will not result in a Default
or Event of Default under this Indenture,

                  (E) upon  the  delivery  of such  Officers'  Certificate,  all
conditions  precedent in this Indenture relating to the release in question will
have been complied with,

                  (F) such sale,  transfer or other  disposition  is not between
the Issuer or any Restricted Subsidiary or between Restricted Subsidiaries, and

                  (G) such sale,  transfer or other  disposition  is not a sale,
transfer or other  disposition  that is excluded  from the  definition of "Asset

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Sale" because it was a sale, lease, conveyance, disposition or other transfer of
all or substantially all of the assets of the Issuer in a transaction which made
in compliance with the provisions of Section 5.01.

         (iii)    all  documentation  required by the TIA, if any,  prior to the
                  release of  Collateral  by the Trustee and, in the event there
                  is to be a  contemporaneous  substitution  of property for the
                  Collateral   subject   to  such   sale,   transfer   or  other
                  disposition,   all  documentation   necessary  to  effect  the
                  substitution of such new Collateral.

         (c) Notwithstanding  the provisions of Section 12.04(b),  so long as no
Event of Default shall have occurred and be continuing,  the Issuer may, without
satisfaction of the conditions set forth in Section  12.04(b) above,  all to the
extent  consistent  with  Sections  4.03,  4.05 and 4.07:  (i) sell or otherwise
dispose of any equipment or inventory  subject to the Lien of this Indenture and
the  Security  Documents,  which  may have  become  worn out or  obsolete,  (ii)
abandon,  terminate,  cancel, release or make alterations in or substitutions of
any  leases or  contracts  subject to the Lien of this  Indenture  or any of the
Security Documents,  (iii) surrender or modify any franchise,  license or permit
subject to the Lien of this Indenture or any of the Security  Documents which it
may own or under which it may be operating,  (iv) alter, repair, replace, change
the  location  or  position of and add to its  structures,  machinery,  systems,
equipment,  fixtures and appurtenances,  (v) demolish,  dismantle,  tear down or
scrap any  obsolete  Collateral  or  abandon  any  portion  thereof,  (vi) grant
farm-outs,  leases or  sub-leases  in respect of real property to the extent the
foregoing does not  constitute an Asset Sale, and (vii) dispose of  Hydrocarbons
or other  mineral  products for value in the ordinary  course of business all in
accordance with the terms of the TIA.

         SECTION 12.05.  Rights of Purchasers; Form and Sufficiency of Release.

         No  purchaser  or grantee of any  property or rights  purporting  to be
released  herefrom  shall be bound to ascertain  the authority of the Trustee to
execute the release or to inquire as to the existence of any  conditions  herein
prescribed  for the  exercise  of such  authority;  nor shall any  purchaser  or
grantee of any  property or rights  permitted  by this  Indenture  to be sold or
otherwise  disposed of by the Issuer or any  Restricted  Subsidiary be under any
obligation  to  ascertain  or  inquire  into  the  authority  of the  Issuer  or
Restricted Subsidiary to make such sale or other disposition.  In the event that
any Person has sold,  exchanged,  or otherwise  disposed of or proposes to sell,
exchange or otherwise dispose of any portion of the Collateral that may be sold,
exchanged or  otherwise  disposed  of, and the Issuer or  Restricted  Subsidiary
makes written request to the Trustee to furnish a written disclaimer, release or
quit-claim  of any  interest  in such  property  under  this  Indenture  and the
Security  Documents,  the Trustee,  in its  capacity as secured  party under the
Security  Documents,  shall  execute,  acknowledge  and deliver to the Issuer or
Restricted  Subsidiary  (in  proper  form)  such an  instrument  promptly  after
satisfaction  of the  conditions  set  forth  herein  for  delivery  of any such
release.  Notwithstanding the preceding sentence, all purchasers and grantees of
any property or rights  purporting to be released  herefrom shall be entitled to
rely upon any release  executed by the Trustee  hereunder as sufficient  for the
purpose of this Indenture and the Security  Documents and as constituting a good
and  valid  release  of the  property  therein  described  from the Lien of this
Indenture or of the Security Documents.

         SECTION  12.06.  Authorization  of Actions  to Be Taken by the  Trustee
Under the Security Documents.

         Subject to the provisions of the applicable Security Document,  (a) the
Trustee may, in its sole discretion and without the consent of the Holders, take
all actions it deems necessary or appropriate in order to (i) enforce any of the
terms of the Security Documents and (ii) collect and receive any and all amounts
payable in  respect  of the  Obligations  of the  Issuer  hereunder  and (b) the
Trustee shall have power to institute and to maintain such suits and proceedings
as it may deem  expedient to prevent any impairment of the Collateral by any act
that  may  be  unlawful  or in  violation  of the  Security  Documents  or  this
Indenture,  and such suits and  proceedings as the Trustee may deem expedient to
preserve  or protect  its  interests  and the  interests  of the  Holders in the
Collateral  (including  the power to institute and maintain suits or proceedings
to restrain the  enforcement  of or  compliance  with any  legislative  or other
governmental enactment,  rule or order that may be unconstitutional or otherwise
invalid if the enforcement of, or compliance with, such enactment, rule or order
would impair the security interest thereunder or be prejudicial to the interests
of the Holders or of the Trustee).

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         SECTION 12.07.  Authorization  of Receipt of Funds by the Trustee Under
the Security Documents.

         The Trustee is  authorized  to receive any funds for the benefit of the
Holders  distributed  under  the  Security   Documents,   and  to  make  further
distributions  of such funds to the Holders in accordance with the provisions of
Section 6.10 and the other provisions of this Indenture.

         SECTION 12.08.  Use of Trust Moneys.

         The Net Cash Proceeds  associated  with any Asset Sale and any Net Cash
Proceeds  associated with any sale, transfer or other disposition of Collateral,
to the extent such sale, transfer or other disposition is not an "Asset Sale" by
virtue of clause  (viii)  of the  definition  thereof,  insurance  proceeds  and
condemnation (or similar) proceeds shall be deposited into a securities  account
maintained  by the Trustee at its  Corporate  Trust Office or at any  securities
intermediary selected by the Trustee having a combined capital and surplus of at
least  $250,000,000  and  having a  long-term  debt  rating of at least  "A3" by
Moody's and at least "AC" by S&P styled the "Abraxas  Collateral  Account" (such
account  being the  "Collateral  Account")  which  shall be under the  exclusive
dominion  and control of the Trustee.  All amounts on deposit in the  Collateral
Account  shall be treated as  financial  assets and cash funds on deposit in the
Collateral  Account may be invested by the Trustee,  at the written direction of
the Issuer, in Cash Equivalents; provided, however, in no event shall the Issuer
have the right to withdraw funds or assets from the Collateral Account except in
compliance  with the terms of this  Indenture,  and all assets  credited  to the
Collateral  Account  shall be subject to a Lien in favor of the  Trustee and the
Holders.

    Any such  funds  may be  released  to the  Issuer by its  delivering  to the
Trustee an Officers' Certificate stating:

         (1) no Event of Default has occurred and is  continuing  as of the date
    of the proposed release; and

        (2) (A) if such Trust Moneys represent Collateral Proceeds in respect of
    an Asset  Sale,  that the  application  of such  funds are  otherwise  being
    applied  in  accordance  with  Section  4.16,  or (B) if such  Trust  Moneys
    represent proceeds in respect of a casualty,  expropriation or taking,  that
    the application of such funds will be applied to repair or replace  property
    subject of a casualty or  condemnation  or reimburse  the Issuer for amounts
    spent to repair or replace  such  property  and that  attached  thereto  are
    invoices or other evidence  reflecting the amounts spent or to be spent,  or
    (C) if such Trust Moneys  represent  proceeds derived from any other manner,
    that such  amounts are being  utilized in  connection  with  business of the
    Issuer and its Restricted  Subsidiaries in compliance with the terms of this
    Indenture; and

         (3) all conditions  precedent in this Indenture relating to the release
    in question have been complied with; and

        (4) all documentation  required by the TIA, if any, prior to the release
    of such Trust Moneys by the Trustee has been delivered to the Trustee.

    Notwithstanding  the  foregoing,  (A) if the  maturity of the Notes has been
accelerated,  which  acceleration  has not been  rescinded  as permitted by this
Indenture,  the Trustee shall apply the Trust Moneys  credited to the Collateral
Account to pay the principal of, premium, if any and accrued and unpaid interest
on the Notes to the extent of such Trust Moneys, (B) if the Issuer so elects, by
giving  written  notice to the  Trustee,  the Trustee  shall apply Trust  Moneys
credited  to the  Collateral  Account  to the  payment  of  interest  due on any
interest payment date, and (C) if the Issuer so elects, by giving written notice
to the Trustee,  the Trustee shall apply Trust Moneys credited to the Collateral
Account to the payment of the principal of, and premium, if any, and accrued and
unpaid  interest on any Notes on the Stated  Maturity Date or upon redemption or
to the purchase of Notes upon tender or in the open market or at private sale or
upon any exchange or in any one or more of such ways, in each case in compliance
with this Indenture.


                  [Remainder of Page Intentionally Left Blank]

                                       72
<PAGE>
                                   SIGNATURES

         IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed, all as of the date first written above.

                                ABRAXAS PETROLEUM CORPORATION, as Issuer



                                By:                                  
                                Name:
                                Title:


                               CANADIAN ABRAXAS PETROLEUM LIMITED, as a
                                   Subsidiary Guarantor


                                By:                                 
                                Name:
                                Title:


                               NEW CACHE PETROLEUMS, LTD., as a Subsidiary
                                   Guarantor


                                By:                                         
                                Name:
                                Title:


                               SANDIA OIL & GAS CORPORATION, as a Subsidiary
                                   Guarantor


                                By:                                        
                                Name:
                                Title:


                               NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION,
                                   as Trustee


                                 By:                                         
                                 Name:
                                 Title:



                                       73
<PAGE>
                                                                     EXHIBIT A

                                                               CUSIP No.:  [ ]

                          ABRAXAS PETROLEUM CORPORATION
                      12.875% SENIOR NOTE DUE 2003, SERIES A

No. [         ]                                                      $[       ]

         ABRAXAS  PETROLEUM  CORPORATION,  a Nevada  corporation  (the "Issuer",
which term includes any successor entities),  for value received promises to pay
to [ ] or registered assigns the principal sum of [ ] Dollars on March 15, 2003.

         Interest Payment Dates: September 15 and March 15, commencing September
         15, 1999

         Record Dates:  September 1 and March 1

         Reference  is made to the  further  provisions  of this Note  contained
herein, which will for all purposes have the same effect as if set forth at this
place.

         IN  WITNESS  WHEREOF,  the  Issuer  has  caused  this Note to be signed
manually or by facsimile by its duly authorized  officers and a facsimile of its
corporate seal to be affixed hereto or imprinted hereon.


                          ABRAXAS PETROLEUM CORPORATION


                           By:
                             Name:
                             Title:



Dated:

Certificate of Authentication

         This is one of the 12.875% Senior Notes due 2003,  Series A referred to
in the within-mentioned Indenture.

                           NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION,
                              as Trustee

                            By:
                                  Authorized Signatory
Date of Authentication:



                                      A-1
<PAGE>



                              (REVERSE OF SECURITY)

                     12.875% Senior Note due 2003, Series A

         (1) Interest.  ABRAXAS PETROLEUM CORPORATION, a Nevada corporation (the
"Issuer"),  promises to pay interest on the principal amount of this Note at the
rate per annum  shown  above.  Interest  on the Notes will  accrue from the most
recent date on which  interest  has been paid or, if no interest  has been paid,
from March 26, 1999.  The Issuer will pay interest  semi-annually  in arrears on
each Interest  Payment  Date,  commencing  September 15, 1999.  Interest will be
computed on the basis of a 360-day year of twelve 30-day months.

         The  Issuer  shall pay  interest  on overdue  principal  and on overdue
installments  of  interest  from time to time on demand at the rate borne by the
Notes and on overdue  installments of interest (without regard to any applicable
grace periods) to the extent lawful.

         2.  Method of  Payment.  The  Issuer  shall pay  interest  on the Notes
(except defaulted interest) to the Persons who are the registered Holders at the
close of business on the Record Date immediately  preceding the Interest Payment
Date even if the Notes are cancelled on registration of transfer or registration
of  exchange  (including  pursuant  to an  Exchange  Offer  (as  defined  in the
Registration  Rights  Agreement)) after such Record Date. Holders must surrender
Notes to a Paying  Agent to collect  principal  payments.  The Issuer  shall pay
principal and interest in money of the United States that at the time of payment
is legal tender for payment of public and private debts ("U.S.  Legal  Tender").
However,  the Issuer may pay principal and interest by its check payable in such
U.S.  Legal  Tender.  The Issuer may  deliver any such  interest  payment to the
Paying Agent or to a Holder at the Holder's registered address.

         3. Paying  Agent and  Registrar.  Initially,  Norwest  Bank  Minnesota,
National Association (the "Trustee") will act as Paying Agent and Registrar. The
Issuer may change any Paying Agent,  Registrar or co-Registrar without notice to
the Holders.

         4. Indenture. The Issuer issued the Notes under an Indenture,  dated as
of March 26, 1999 (the  "Indenture"),  between the Issuer and the Trustee.  This
Note is one of a duly authorized issue of Initial Notes of the Issuer designated
as its 12 f% Senior Notes due 2003,  Series A (the "Initial  Notes").  The Notes
are limited in aggregate principal amount to $63,500,000.  The Notes include the
Initial  Notes and the Exchange  Notes issued in exchange for the Initial  Notes
pursuant  to the  Registration  Rights  Agreement.  The  Initial  Notes  and the
Exchange Notes are treated as a single class of securities  under the Indenture.
Capitalized  terms herein are used as defined in the Indenture  unless otherwise
defined herein. The terms of the Notes include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939
(15 U.S.  Code "  77aaa-77bbbb)  (the  "TIA"),  as in  effect on the date of the
Indenture.  Notwithstanding  anything  to the  contrary  herein,  the  Notes are
subject to all such terms,  and Holders of Notes are  referred to the  Indenture
and  said  Act  for a  statement  of  them.  The  Notes  are  general  unsecured
obligations of the Issuer.

         5. Indenture.  Each Holder,  by accepting a Note, agrees to be bound by
all of the terms and  provisions  of the  Indenture,  as the same may be amended
from time to time in accordance with its terms.

         6. Redemption. The Notes will be redeemable, at the Issuer's option, in
whole at any time or in part from time to time,  on and  after  March 15,  2001,
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 March 15 of the years set forth
below, plus, in each case,  accrued and unpaid interest,  if any, thereon to the
date of redemption:


                                      A-2
<PAGE>

                  Year                                    Percentage

                  2001..................................   103.000%
                  2002 and thereafter................. ..  100.000%

         At any time, or from time to time,  prior to March 15, 2001, the Issuer
may, at its option, use all or a portion of the net cash proceeds of one or more
Equity  Offerings  (as  defined  in the  Indenture)  to  redeem up to 35% of the
aggregate  original principal amount of the Notes at a Redemption Price equal to
112.875% 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 65% of the aggregate original principal amount
of the 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 its
Affiliates  shall be  deemed  not to be  outstanding).  In order to  effect  the
foregoing redemption with the proceeds of any Equity Offering,  the Issuer shall
make such redemption not more than 60 days after the  consummation of any Equity
Offering.

         7. Notice of Redemption.  Notice of redemption  will be mailed at least
30 days but not more than 60 days before the  Redemption  Date to each Holder of
Notes to be redeemed at such Holder's registered address. Notes in denominations
larger than $1,000 may be redeemed in part.

         Except as set forth in the  Indenture,  if monies for the redemption of
the Notes called for redemption  shall have been deposited with the Paying Agent
for redemption on such Redemption Date, then,  unless the Issuer defaults in the
payment of such Redemption Price plus accrued interest, if any, the Notes called
for redemption  will cease to bear interest from and after such  Redemption Date
and the only right of the  Holders  of such Notes will be to receive  payment of
the Redemption Price plus accrued interest, if any.

         8. Offers to Purchase.  Sections 4.15 and 4.16 of the Indenture provide
that,  after certain Net Proceeds  Offers (as defined in the Indenture) and upon
the occurrence of a Change of Control (as defined in the Indenture), and subject
to further  limitations  contained  therein,  the  Issuer  will make an offer to
purchase  certain  amounts of the Notes in accordance  with the  procedures  set
forth in the Indenture.

         9. Registration  Rights.  Pursuant to the Registration Rights Agreement
between  the Issuer and the  Initial  Purchaser,  the Issuer and the  Subsidiary
Guarantors  will be obligated to consummate an exchange  offer pursuant to which
the  Holder of this Note  shall  have the  right to  exchange  this Note for the
Issuer's 12f % Senior Notes due 2003,  Series B (the  "Exchange  Notes"),  which
have been  registered  under the Securities  Act, in like  principal  amount and
having  terms  identical  in all  material  respects as the Initial  Notes.  The
Holders of the Initial  Notes shall be  entitled to receive  certain  additional
interest  payments in the event such exchange offer is not  consummated and upon
certain other  conditions,  all pursuant to and in accordance  with the terms of
the Registration Rights Agreement.

         10.  Denominations;  Transfer;  Exchange.  The Notes are in  registered
form,  without  coupons,  and (except  Notes  issued as payment of  Interest) in
denominations  of $1,000  and  integral  multiples  of  $1,000.  A Holder  shall
register the transfer of or exchange Notes in accordance with the Indenture. The
Registrar  may require a Holder,  among  other  things,  to furnish  appropriate
endorsements and transfer documents and to pay certain transfer taxes or similar
governmental  charges  payable  in  connection  therewith  as  permitted  by the
Indenture.  The  Registrar  need not register the transfer of or exchange of any
Notes or portions thereof selected for redemption.

         11.  Persons Deemed  Owners.  The registered  Holder of a Note shall be
treated as the owner of it for all purposes.

         12.  Unclaimed Money. If money for the payment of principal or interest
remains  unclaimed  for one year,  the Trustee and the Paying Agent will pay the
money back to the Issuer.  After  that,  all  liability  of the Trustee and such
Paying Agent with respect to such money shall cease.


                                      A-3
<PAGE>

         13.  Discharge  Prior to Redemption  or Maturity.  If the Issuer at any
time deposits with the Trustee U.S. Legal Tender or U.S. Government  Obligations
sufficient  to pay the  principal of and interest on the Notes to  redemption or
maturity and comply with the other provisions of the Indenture relating thereto,
the Issuer will be discharged  from certain  provisions of the Indenture and the
Notes (including certain covenants, but including,  under certain circumstances,
its  obligation  to pay the  principal  of and interest on the Notes but without
affecting the rights of the Holders to receive such amounts from such deposits).

         14. Amendment;  Supplement;  Waiver.  Subject to certain exceptions set
forth  in  the  Indenture,  the  Indenture  or  the  Notes  may  be  amended  or
supplemented with the written consent of the Holders of not less than a majority
in  aggregate  principal  amount of the  Notes  then  outstanding,  and any past
Default or Event of Default or  noncompliance  with any  provision may be waived
with the written consent of the Holders of not less than a majority in aggregate
principal amount of the Notes then outstanding.  Without notice to or consent of
any Holder,  the parties  thereto may amend or  supplement  the Indenture or the
Notes to,  among other  things,  cure any  ambiguity,  defect or  inconsistency,
provide for  uncertificated  Notes in  addition  to or in place of  certificated
Notes,  comply with any  requirements  of the  Commission  in order to effect or
maintain the qualification of the Indenture under the TIA or comply with Article
Five of the  Indenture or make any other change that does not  adversely  affect
the rights of any Holder of a Note.

         15. Restrictive Covenants. The Indenture imposes certain limitations on
the  ability of the Issuer  and the  Restricted  Subsidiaries  to,  among  other
things, incur additional  Indebtedness,  make payments in respect of its Capital
Stock or certain Indebtedness,  make certain Investments, create or incur liens,
enter into  transactions  with  Affiliates,  create  dividend  or other  payment
restrictions  affecting  Restricted  Subsidiaries,  issue Preferred Stock of its
Restricted  Subsidiaries,  and on the  ability of the Issuer and its  Restricted
Subsidiaries  to merge or  consolidate  with any other  Person or sell,  assign,
transfer,  lease, convey or otherwise dispose of all or substantially all of the
Issuer's and its Restricted Subsidiaries' assets or adopt a plan of liquidation.
Such  limitations  are  subject  to a number  of  important  qualifications  and
exceptions.  Pursuant to Section 4.06 of the Indenture, the Issuer must annually
report to the Trustee on compliance with such limitations.

         16.  Successors.  When a  successor  assumes,  in  accordance  with the
Indenture,  all the  obligations  of its  predecessor  under  the  Notes and the
Indenture, the predecessor, subject to certain exceptions, will be released from
those obligations.

         17.  Defaults  and  Remedies.  If an Event  of  Default  occurs  and is
continuing,  the  Trustee  or the  Holders  of not less  than  25% in  aggregate
principal  amount of Notes then  outstanding may declare all the Notes to be due
and  payable  in the  manner,  at the time and with the effect  provided  in the
Indenture. Holders of Notes may not enforce the Indenture or the Notes except as
provided in the Indenture. The Trustee is not obligated to enforce the Indenture
or the Notes unless it has received  security and indemnity  satisfactory to it.
The Indenture permits, subject to certain limitations therein provided,  Holders
of a majority in aggregate  principal  amount of the Notes then  outstanding  to
direct the  Trustee  in its  exercise  of any trust or power.  The  Trustee  may
withhold  from  Holders of Notes  notice of any  continuing  Default or Event of
Default  (except a Default in payment of principal or interest when due, for any
reason or a Default in  compliance  with  Article Five of the  Indenture)  if it
determines that withholding notice is in its interest.

         18. Trustee Dealings with Issuer.  The Trustee under the Indenture,  in
its individual or any other  capacity,  may become the owner or pledgee of Notes
and may  otherwise  deal with the Issuer,  its  Subsidiaries  or its  respective
Affiliates as if it were not the Trustee.

         19. No Recourse Against Others. No partner, director, officer, employee
or stockholder,  as such, of Issuer or any Subsidiary Guarantor,  as such, shall
have any liability for any  obligations  of Issuer or any  Subsidiary  Guarantor
under the Notes,  the  Indenture,  the  Guarantees  or the  Registration  Rights
Agreement  or for any claim  based  on, in  respect  of, or by reason  of,  such
obligations or its creation. Each Holder of Notes by accepting a Note waives and
releases  all  such   liability.   The  waiver  and  release  are  part  of  the
consideration for the issuance of the Notes.

                                      A-4
<PAGE>

         20.  Guarantees.  This Note will be entitled to the benefits of certain
Guarantees,  if any,  made for the benefit of the  Holders.  Reference is hereby
made to the Indenture for a statement of the respective  rights,  limitations of
rights,  duties and  obligations  thereunder of the Subsidiary  Guarantors,  the
Trustee and the Holders.

         21.  Authentication.  This Note shall not be valid until the Trustee or
Authenticating  Agent manually signs the certificate of  authentication  on this
Note.

         22. Governing Law. This Note and the Indenture shall be governed by and
construed in  accordance  with the laws of the State of New York,  as applied to
contracts made and performed  within the State of New York.  Each of the parties
hereto  agrees to submit to the  jurisdiction  of the courts of the State of New
York in any action or proceeding arising out of or relating to this Note.

         23.  Abbreviations  and Defined Terms.  Customary  abbreviations may be
used in the  name of a Holder  of a Note or an  assignee,  such  as:  TEN COM ('
tenants  in  common),  TEN ENT (' tenants  by the  entireties),  JT TEN (' joint
tenants  with  right of  survivorship  and not as tenants  in  common),  CUST ('
Custodian), and U/G/M/A (' Uniform Gifts to Minors Act).

         24. CUSIP  Numbers.  Pursuant to a  recommendation  promulgated  by the
Committee on Uniform Security Identification  Procedures,  the Issuer has caused
CUSIP numbers to be printed on the Notes as a convenience  to the Holders of the
Notes. No  representation  is made as to the accuracy of such numbers as printed
on the Notes and reliance may be placed only on the other identification numbers
printed hereon.

         The Issuer will  furnish to any Holder of a Note upon  written  request
and  without  charge a copy of the  Indenture,  which has the text of this Note.
Requests  may be made to:  Abraxas  Petroleum  Corporation,  500 North Loop 1604
East, Suite 100, San Antonio, Texas 78232.


                                      A-5
<PAGE>


                                 ASSIGNMENT FORM


         If you the Holder want to assign this Note,  fill in the form below and
have your signature guaranteed:


I or we assign and transfer this Note to:

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                  (Print or type name, address and zip code and
                  social security or tax ID number of assignee)

and  irrevocably  appoint  ______________  , agent to transfer  this Note on the
books of the Issuer. The agent may substitute another to act for him.


Dated:_________________ Signed:_________________________________________________
                                      (Sign exactly as your name appears
                                       on the other side of this Note)

Signature Guarantee:____________________________________________________________


         In  connection  with any transfer of this Note  occurring  prior to the
date which is the earlier of (i) the date of the  declaration  by the Commission
of the  effectiveness  of a registration  statement  under the Securities Act of
1933, as amended (the  "Securities  Act")  covering  resales of this Note (which
effectiveness  shall not have been  suspended or  terminated  at the date of the
transfer)  and (ii) March 27, 2000,  the  undersigned  confirms  that it has not
utilized any general  solicitation or general advertising in connection with the
transfer:




                                      A-6
<PAGE>



                                                     [Check One]

(1)      __       to the Issuer or a Subsidiary thereof; or

(2)      __       pursuant  to and in  compliance  with Rule 144A  under the
                  Securities Act of 1933, as amended; or

(3)      __       to an institutional  "accredited investor" (as defined in Rule
                  501(a)(1),  (2), (3) or (7) under the  Securities Act of 1933,
                  as amended)  that has furnished to the Trustee a signed letter
                  containing certain representations and agreements (the form of
                  which letter can be obtained from the Trustee); or

(4)      __       outside the United states to a "foreign  person" in compliance
                  with  Rule 904 of  Regulation  S under the  Securities  Act of
                  1933, as amended; or

(5)      __       pursuant to the exemption from  registration  provided by Rule
                  144 under the Securities Act of 1933, as amended; or

(6)      __       pursuant  to an  effective  registration  statement  under the
                  Securities Act of 1933, as amended; or

(7)      __       pursuant to another available  exemption from the registration
                  requirements of the Securities Act of 1933, as amended.

and unless the box below is checked,  the undersigned confirms that such Note is
not being  transferred  to an  "affiliate"  of the Issuer as defined in Rule 144
under the Securities Act of 1933, as amended (an "Affiliate"):

         o        The transferee is an Affiliate of the Issuer.

Unless one of the items is checked,  the Trustee  will refuse to register any of
the Notes evidenced by this certificate in the name of any Person other than the
registered Holder thereof; provided,  however, that if item (3), (4), (5) or (7)
is checked, the Issuer or the Trustee may require, prior to registering any such
transfer of the Notes,  in its sole  discretion,  such written  legal  opinions,
certifications  (including an  investment  letter in the case of box (3) or (4))
and other  information as the Trustee or the Issuer has reasonably  requested to
confirm that such transfer is being made pursuant to an exemption  from, or in a
transaction not subject to, the registration  requirements of the Securities Act
of 1933, as amended.


                                      A-7
<PAGE>

If none of the foregoing  items are checked,  the Trustee or Registrar shall not
be  obligated  to  register  this Note in the name of any Person  other than the
Holder  hereof  unless  and  until  the  conditions  to  any  such  transfer  of
registration  set forth herein and in Section 2.17 of the  Indenture  shall have
been satisfied.


Dated:____________________  Signed:_________________________________________   
                                         (Sign exactly as name
                                         appears on the other side
                                         of this Note)


Signature Guarantee:_______________________                        


              TO BE COMPLETED BY PURCHASER IF (2) ABOVE IS CHECKED

         The undersigned represents and warrants that it is purchasing this Note
for its own  account  or an account  with  respect  to which it  exercises  sole
investment  discretion  and  that  it  and  any  such  account  is a  "qualified
institutional buyer" within the meaning of Rule 144A under the Securities Act of
1933,  as amended  and is aware that the sale to it is being made in reliance on
Rule 144A and acknowledges  that it has received such information  regarding the
Issuer as the undersigned has requested  pursuant to Rule 144A or has determined
not to request  such  information  and that it is aware that the  transferor  is
relying upon the undersigned's  foregoing  representations in order to claim the
exemption from registration provided by Rule 144A.


Dated:_____________        _______________________________________             
                            NOTICE: To be executed by
                              an executive officer



                                      A-8
<PAGE>



                      [OPTION OF HOLDER TO ELECT PURCHASE]


         If you want to elect to have this Note purchased by the Issuer pursuant
to Section 4.15 or Section 4.16 of the Indenture, check the appropriate box:

                           Section 4.15 [     ]
                           Section 4.16 [     ]

         If you want to elect to have only part of this  Note  purchased  by the
Issuer  pursuant to Section  4.15 or Section  4.16 of the  Indenture,  state the
amount you elect to have purchased:


$________________


Dated: __________________  ____________________________________________________
                          
                                 NOTICE: The signature on this
                                 assignment must correspond with
                                 the  name as it  appears  upon the
                                 face of the  within  Note in every
                                 particular  without  alteration or
                                 enlargement    or    any    change
                                 whatsoever and be guaranteed.


Signature Guarantee:____________________________




                                      A-9
<PAGE>

                                                                    EXHIBIT B

                                                               CUSIP No.:  [ ]

                          ABRAXAS PETROLEUM CORPORATION
                       12.875% SENIOR NOTE DUE 2003, SERIES B

No. [         ]                                                      $[       ]

         ABRAXAS  PETROLEUM  CORPORATION,  a Nevada  corporation  (the "Issuer",
which term includes any successor  entities),  for value received promise to pay
to [ ] or registered assigns the principal sum of [ ] Dollars on March 15, 2003.

         Interest Payment Dates: September 15 and March 15, commencing September
         15, 1999

         Record Dates:  September 1 and March 1

         Reference  is made to the  further  provisions  of this Note  contained
herein, which will for all purposes have the same effect as if set forth at this
place.

         IN  WITNESS  WHEREOF,  the  Issuer  has  caused  this Note to be signed
manually or by facsimile by its duly authorized  officers and a facsimile of its
corporate seal to be affixed hereto or imprinted hereon.


                          ABRAXAS PETROLEUM CORPORATION


                          By:
                           Name:
                           Title:



Dated:

Certificate of Authentication

         This is one of the 12f% Senior Notes due 2003,  Series B referred to in
the within-mentioned Indenture.

                        NORWEST BANK MINNESOTA, NATIONAL ASSOCIATION,
                        as Trustee

                         By:
                          Authorized Signatory

Date of Authentication:




                                      B-1
<PAGE>


                              (REVERSE OF SECURITY)

                     12.875% Senior Note due 2003, Series B

         1. Interest.  ABRAXAS PETROLEUM CORPORATION,  a Nevada corporation (the
"Issuer"),  promises to pay interest on the principal amount of this Note at the
rate per annum  shown  above.  Interest  on the Notes will  accrue from the most
recent date on which  interest  has been paid or, if no interest  has been paid,
from March 26, 1999.  The Issuer will pay interest  semi-annually  in arrears on
each Interest  Payment  Date,  commencing  September 15, 1999.  Interest will be
computed on the basis of a 360-day year of twelve 30-day months.

         The  Issuer  shall pay  interest  on overdue  principal  and on overdue
installments  of  interest  from time to time on demand at the rate borne by the
Notes and on overdue  installments of interest (without regard to any applicable
grace periods) to the extent lawful.

         2.  Method of  Payment.  The  Issuer  shall pay  interest  on the Notes
(except defaulted interest) to the Persons who are the registered Holders at the
close of business on the Record Date immediately  preceding the Interest Payment
Date even if the Notes are cancelled on registration of transfer or registration
of exchange  after such Record Date.  Holders must  surrender  Notes to a Paying
Agent to collect principal payments. The Issuer shall pay principal and interest
in money of the United  States  that at the time of payment is legal  tender for
payment of public and private debts ("U.S. Legal Tender").  However,  the Issuer
may pay principal  and interest by its check payable in such U.S.  Legal Tender.
The Issuer may deliver  any such  interest  payment to the Paying  Agent or to a
Holder at the Holder's registered address.

         3. Paying  Agent and  Registrar.  Initially,  Norwest  Bank  Minnesota,
National Association (the "Trustee") will act as Paying Agent and Registrar. The
Issuer may change any Paying Agent,  Registrar or co-Registrar without notice to
the Holders.

         4. Indenture. The Issuer issued the Notes under an Indenture,  dated as
of March  26,  1999  (the  "Indenture"),  between  the  Issuer,  the  Subsidiary
Guarantors  and the  Trustee.  This  Note is one of a duly  authorized  issue of
Exchange  Notes of the  Issuer  designated  as its 12f%  Senior  Notes due 2003,
Series B (the "Exchange  Notes").  The Notes are limited in aggregate  principal
amount to  $63,500,000.  The Notes include the 12f% Notes due 2003 (the "Initial
Notes")  and the  Exchange  Notes,  issued in  exchange  for the  Initial  Notes
pursuant  to the  Registration  Rights  Agreement.  The  Initial  Notes  and the
Exchange Notes are treated as a single class of securities  under the Indenture.
Capitalized  terms herein are used as defined in the Indenture  unless otherwise
defined herein. The terms of the Notes include those stated in the Indenture and
those made part of the Indenture by reference to the Trust Indenture Act of 1939
(15 U.S.  Code "  77aaa-77bbbb)  (the  "TIA"),  as in  effect on the date of the
Indenture.  Notwithstanding  anything  to the  contrary  herein,  the  Notes are
subject to all such terms,  and Holders of Notes are  referred to the  Indenture
and  said  Act  for a  statement  of  them.  The  Notes  are  general  unsecured
obligations of the Issuer.

         5. Indenture.  Each Holder,  by accepting a Note, agrees to be bound by
all of the terms and  provisions  of the  Indenture,  as the same may be amended
from time to time in accordance with its terms.

         6. Redemption. The Notes will be redeemable, at the Issuer's option, in
whole at any time or in part from time to time,  on and  after  March 15,  2001,
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 March 15 of the years set below,
plus, in each case, accrued and unpaid interest,  if any, thereon to the date of
redemption:


                                      B-2
<PAGE>

                  Year                                  Percentage

                  2001...............................     103.000%
                  2002 and thereafter................     100.000%

         At any time, or from time to time,  prior to March 15, 2001, the Issuer
may, at its option, use all or a portion of the net cash proceeds of one or more
Equity  Offerings  (as  defined  in the  Indenture)  to  redeem up to 35% of the
aggregate  original principal amount of the Notes at a Redemption Price equal to
112.875% 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 65% of the aggregate original principal amount
of the 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 Issuer or any of its  Affiliates
shall  be  deemed  not to be  outstanding).  In order to  effect  the  foregoing
redemption with the proceeds of any Equity Offering,  the Issuer shall make such
redemption not more than 60 days after the consummation of any Equity Offering.

         7. Notice of Redemption.  Notice of redemption  will be mailed at least
30 days but not more than 60 days before the  Redemption  Date to each Holder of
Notes to be redeemed at such Holder's registered address. Notes in denominations
larger than $1,000 may be redeemed in part.

         Except as set forth in the  Indenture,  if monies for the redemption of
the Notes called for redemption  shall have been deposited with the Paying Agent
for redemption on such Redemption Date, then,  unless the Issuer defaults in the
payment of such Redemption Price plus accrued interest, if any, the Notes called
for redemption  will cease to bear interest from and after such  Redemption Date
and the only right of the  Holders  of such Notes will be to receive  payment of
the Redemption Price plus accrued interest, if any.

         8. Offers to Purchase.  Sections 4.15 and 4.16 of the Indenture provide
that,  after certain Net Proceeds  Offers (as defined in the Indenture) and upon
the occurrence of a Change of Control (as defined in the Indenture), and subject
to further  limitations  contained  therein,  the  Issuer  will make an offer to
purchase  certain  amounts of the Notes in accordance  with the  procedures  set
forth in the Indenture.

         9. Denominations; Transfer; Exchange. The Notes are in registered form,
without   coupons,   and  (except  Notes  issued  as  payment  of  Interest)  in
denominations  of $1,000  and  integral  multiples  of  $1,000.  A Holder  shall
register the transfer of or exchange Notes in accordance with the Indenture. The
Registrar may require a Holder,  between other  things,  to furnish  appropriate
endorsements and transfer documents and to pay certain transfer taxes or similar
governmental  charges  payable  in  connection  therewith  as  permitted  by the
Indenture.  The  Registrar  need not register the transfer of or exchange of any
Notes or portions thereof selected for redemption.

         10.  Persons Deemed  Owners.  The registered  Holder of a Note shall be
treated as the owner of it for all purposes.

         11.  Unclaimed Money. If money for the payment of principal or interest
remains  unclaimed  for one year,  the Trustee and the Paying Agent will pay the
money back to the Issuer.  After  that,  all  liability  of the Trustee and such
Paying Agent with respect to such money shall cease.

         12.  Discharge  Prior to Redemption  or Maturity.  If the Issuer at any
time deposits with the Trustee U.S. Legal Tender or U.S. Government  Obligations
sufficient to pay the  principal of and interest on the Notes to redemption  and
comply with the other provisions of the Indenture  relating thereto,  the Issuer
will be  discharged  from  certain  provisions  of the  Indenture  and the Notes
(including  certain  covenants,  including,  under  certain  circumstances,  its
obligation  to pay the  principal  of and  interest  on the  Notes  but  without
affecting the rights of the Holders to receive such amounts from such deposits).

                                      B-3
<PAGE>

         13. Amendment;  Supplement;  Waiver.  Subject to certain exceptions set
forth  in  the  Indenture,  the  Indenture  or  the  Notes  may  be  amended  or
supplemented with the written consent of the Holders of not less than a majority
in  aggregate  principal  amount of the  Notes  then  outstanding,  and any past
Default or Event of Default or  noncompliance  with any  provision may be waived
with the written consent of the Holders of not less than a majority in aggregate
principal amount of the Notes then outstanding.  Without notice to or consent of
any Holder,  the parties  thereto may amend or  supplement  the Indenture or the
Notes to,  among other  things,  cure any  ambiguity,  defect or  inconsistency,
provide for  uncertificated  Notes in  addition  to or in place of  certificated
Notes,  comply with any  requirements  of the  Commission  in order to effect or
maintain the qualification of the Indenture under the TIA or comply with Article
Five of the  Indenture or make any other change that does not  adversely  affect
the rights of any Holder of a Note.

         14. Restrictive Covenants. The Indenture imposes certain limitations on
the  ability of the Issuer  and the  Restricted  Subsidiaries  to,  among  other
things, incur additional  Indebtedness,  make payments in respect of its Capital
Stock or certain Indebtedness,  make certain Investments, create or incur liens,
enter into  transactions  with  Affiliates,  create  dividend  or other  payment
restrictions  affecting  Restricted  Subsidiaries,  issue Preferred Stock of its
Restricted  Subsidiaries,  and on the  ability of the Issuer and its  Restricted
Subsidiaries  to merge or  consolidate  with any other  Person or sell,  assign,
transfer,  lease, convey or otherwise dispose of all or substantially all of the
Issuer's and its Restricted Subsidiaries' assets or adopt a plan of liquidation.
Such  limitations  are  subject  to a number  of  important  qualifications  and
exceptions.  Pursuant to Section 4.06 of the Indenture, the Issuer must annually
report to the Trustee on compliance with such limitations.

         15.  Successors.  When a  successor  assumes,  in  accordance  with the
Indenture,  all the  obligations  of its  predecessor  under  the  Notes and the
Indenture, the predecessor, subject to certain exceptions, will be released from
those obligations.

         16.  Defaults  and  Remedies.  If an Event  of  Default  occurs  and is
continuing,  the  Trustee  or the  Holders  of not less  than  25% in  aggregate
principal  amount of Notes then  outstanding may declare all the Notes to be due
and  payable  in the  manner,  at the time and with the effect  provided  in the
Indenture. Holders of Notes may not enforce the Indenture or the Notes except as
provided in the Indenture. The Trustee is not obligated to enforce the Indenture
or the Notes unless it has received  security and indemnity  satisfactory to it.
The Indenture permits, subject to certain limitations therein provided,  Holders
of a majority in aggregate  principal  amount of the Notes then  outstanding  to
direct the  Trustee  in its  exercise  of any trust or power.  The  Trustee  may
withhold  from  Holders of Notes  notice of any  continuing  Default or Event of
Default  (except a Default in payment of principal or interest when due, for any
reason or a Default in  compliance  with  Article Five of the  Indenture)  if it
determines that withholding notice is in its interest.

         17. Trustee Dealings with Issuer.  The Trustee under the Indenture,  in
its individual or any other  capacity,  may become the owner or pledgee of Notes
and may  otherwise  deal with the Issuer,  its  Subsidiaries  or its  respective
Affiliates as if it were not the Trustee.

         18. No Recourse Against Others. No partner, director, officer, employee
or stockholder,  as such, of Issuer or any Subsidiary Guarantor,  as such, shall
have any liability for any  obligations  of Issuer or any  Subsidiary  Guarantor
under the Notes,  the  Indenture,  the  Guarantees  or the  Registration  Rights
Agreement  or for any claim  based  on, in  respect  of, or by reason  of,  such
obligations or its creation. Each Holder of Notes by accepting a Note waives and
releases  all  such   liability.   The  waiver  and  release  are  part  of  the
consideration for the issuance of the Notes.

         19.  Guarantees.  This Note will be entitled to the benefits of certain
Guarantees,  if any,  made for the benefit of the  Holders.  Reference is hereby
made to the Indenture for a statement of the respective  rights,  limitations of
rights,  duties and  obligations  thereunder of the Subsidiary  Guarantors,  the
Trustee and the Holders.

         20.  Authentication.  This Note shall not be valid until the Trustee or
Authenticating  Agent manually signs the certificate of  authentication  on this
Note.

                                      B-4
<PAGE>


         21. Governing Law. This Note and the Indenture shall be governed by and
construed in  accordance  with the laws of the State of New York,  as applied to
contracts made and performed  within the State of New York.  Each of the parties
hereto  agrees to submit to the  jurisdiction  of the courts of the State of New
York in any action or proceeding arising out of or relating to this Note.

         22.  Abbreviations  and Defined Terms.  Customary  abbreviations may be
used in the  name of a Holder  of a Note or an  assignee,  such  as:  TEN COM ('
tenants  in  common),  TEN ENT (' tenants  by the  entireties),  JT TEN (' joint
tenants  with  right of  survivorship  and not as tenants  in  common),  CUST ('
Custodian), and U/G/M/A (' Uniform Gifts to Minors Act).

         23. CUSIP  Numbers.  Pursuant to a  recommendation  promulgated  by the
Committee on Uniform Security Identification  Procedures,  the Issuer has caused
CUSIP numbers to be printed on the Notes as a convenience  to the Holders of the
Notes. No  representation  is made as to the accuracy of such numbers as printed
on the Notes and reliance may be placed only on the other identification numbers
printed hereon.

         The Issuer will  furnish to any Holder of a Note upon  written  request
and  without  charge a copy of the  Indenture,  which has the text of this Note.
Requests  may be made to:  Abraxas  Petroleum  Corporation,  500 North Loop 1604
East, Suite 100, San Antonio, Texas 78232.


                                      B-5
<PAGE>

                                 ASSIGNMENT FORM


         If you the Holder want to assign this Note,  fill in the form below and
have your signature guaranteed:


I or we assign and transfer this Note to:

________________________________________________________________________________

________________________________________________________________________________

________________________________________________________________________________
                  (Print or type name, address and zip code and
                  social security or tax ID number of assignee)


and irrevocably appoint________________________________________________________,
agent to transfer this Note on the books of the Issuer. The agent may substitute
another to act for him.


Dated:____________________________      Signed:_______________________________
                                        (Sign exactly as name appears
                                         on the other side of this Note)


Signature Guarantee:





                                      B-6
<PAGE>


                      [OPTION OF HOLDER TO ELECT PURCHASE]


         If you want to elect to have this Note purchased by the Issuer pursuant
to Section 4.15 or Section 4.16 of the Indenture, check the appropriate box:

                           Section 4.15 [     ]
                           Section 4.16 [     ]

         If you want to elect to have only part of this  Note  purchased  by the
Issuer  pursuant to Section  4.15 or Section  4.16 of the  Indenture,  state the
amount you elect to have purchased:


$___________________


Dated: _________________    __________________________________________________
                    
                                       NOTICE:  The signature on this
                                       assignment must correspond with
                                       the  name as it  appears  upon  the
                                       face of the  within  Note in  every
                                       particular  without  alteration  or
                                       enlargement     or    any    change
                                       whatsoever and be guaranteed.


Signature Guarantee:                             


                                      B-7
<PAGE>
                                                                   EXHIBIT C

                            Form of Certificate To Be
                          Delivered in Connection with
                    Transfers to Non-QIB Accredited Investors

                                                             [ ], [    ]

[                        ]
[                        ]
[                        ]

Ladies and Gentlemen:

         In connection with our proposed  purchase of 12f% Senior Notes due 2003
(the "Notes") of Abraxas Petroleum Corporation ("Abraxas"), we confirm that:

                  I. We have  received a copy of the  Offering  Memorandum  (the
         "Offering Memorandum"), dated March 27, 1999, relating to the Notes and
         such  other  information  as we deem  necessary  in  order  to make our
         investment decision. We acknowledge that we have read and agreed to the
         matters  stated in the section  entitled  "Notice to Investors" of such
         Offering Memorandum.

                  2. We understand that any subsequent  transfer of the Notes is
         subject  to  certain  restrictions  and  conditions  set  forth  in the
         Indenture  relating to the Notes (the  "Indenture") as described in the
         Offering  Memorandum and the undersigned agrees to be bound by, and not
         to resell,  pledge or otherwise transfer the Notes except in compliance
         with, such  restrictions and conditions and the Securities Act of 1933,
         as amended (the "Securities  Act"), and all applicable State securities
         laws.

                  3. We understand that the offer and sale of the Notes have not
         been registered under the Securities Act, and that the Notes may not be
         offered or sold  within the United  States or to, or for the account or
         benefit of, U.S. Persons except as permitted in the following sentence.
         We agree,  on our own behalf and on behalf of any accounts for which we
         are acting as hereinafter  stated, that if we should sell any Notes, we
         will do so only (i) to Abraxas or any subsidiary  thereof,  (ii) inside
         the United States in accordance with Rule 144A under the Securities Act
         to  a  "qualified   institutional  buyer"  (as  defined  in  Rule  144A
         promulgated  under the  Securities  Act) that,  prior to such transfer,
         furnishes (or has furnished on its behalf by a U.S.  broker-dealer)  to
         the Trustee (as defined in the  Indenture) a signed  letter  containing
         certain  representations and agreements relating to the restrictions on
         transfer of the Notes (the form of which  letter can be  obtained  from
         the Trustee),  (iii) outside the United States in accordance  with Rule
         904 of Regulation S promulgated under the Securities Act (provided that
         any such  sale or  transfer  in Canada  or to or for the  benefit  of a
         Canadian  resident must be effected  pursuant to an exemption  from the
         prospectus and  registration  requirements  under  applicable  Canadian
         securities  laws),  (iv)  pursuant to the exemption  from  registration
         provided by Rule 144 under the  Securities Act (if  available),  or (v)
         pursuant to an effective  registration  statement  under the Securities
         Act, and we further  agree to provide to any Person  purchasing  any of
         the Notes from us a notice  advising such purchaser that resales of the
         Notes are restricted as stated herein.

                  4. We understand that, on any proposed resale of any Notes, we
         will  be  required   to  furnish  to  the  Trustee  and  Abraxas   such
         certification,  legal opinions and other information as the Trustee and
         Abraxas  may  reasonably  require to  confirm  that the  proposed  sale
         complies with the foregoing  restrictions.  We further  understand that
         the Notes purchased by us will bear a legend to the foregoing effect.


                                      C-1
<PAGE>

                  5. We are an institutional  "accredited  investor" (as defined
         in Rule 501(a)(1), (2), (3) or (7) of Regulation D under the Securities
         Act) and have such  knowledge and  experience in financial and business
         matters  as to be  capable  of  evaluating  the merits and risks of our
         investment  in the  Notes,  and we and any  accounts  for  which we are
         acting  are  each  able  to  bear  the  economic  risk  of  our  or its
         investment, as the case may be.

                  6. We are acquiring the Notes  purchased by us for our account
         or for  one  or  more  accounts  (each  of  which  is an  institutional
         "accredited  investor") as to each of which we exercise sole investment
         discretion.

                  You,  Abraxas and the Trustee and others are  entitled to rely
upon this letter and are irrevocably authorized to produce this letter or a copy
hereof to any  interested  party in any  administrative  or legal  proceeding or
official inquiry with respect to the matters covered hereby.

                                      Very truly yours,

                                      [Name of Transferee]




                                      By:
                                         Name:
                                         Title:


                                      C-2
<PAGE>
                                                                  EXHIBIT D

                       Form of Certificate To Be Delivered
                          in Connection with Transfers
                            Pursuant to Regulation S

                                                               [ ], [    ]

[                  ]
[                  ]
[                  ]
[                  ]



         Re:      Abraxas Petroleum Corporation (the "Issuer")
                   12.875% Senior Notes due 2003 (the "Notes")         

Ladies and Gentlemen:

         In connection with our proposed sale of $[______]  aggregate  principal
amount of the Notes, we confirm that such sale has been effected pursuant to and
in  accordance  with  Regulation  S under the U.S.  Securities  Act of 1933,  as
amended (the "Securities Act"), and, accordingly, we represent that:

                  (1) the  offer of the  Notes  was not made to a Person  in the
         United States;

                  (2) either (a) at the time the buy offer was  originated,  the
         transferee was outside the United States or we and any Person acting on
         our behalf  reasonably  believed  that the  transferee  was outside the
         United States,  or (b) the  transaction  was executed in, on or through
         the facilities of a designated  off-shore securities market and neither
         we nor any Person acting on our behalf knows that the  transaction  has
         been pre-arranged with a buyer in the United States;

                  (3) no directed  selling  efforts have been made in the United
         States in  contravention  of the  requirements  of Rule  903(b) or Rule
         904(b) of Regulation S, as applicable;

                  (4) the  transaction  is not part of a plan or scheme to evade
         the registration requirements of the Securities Act; and

                  (5)  we  have   advised  the   transferee   of  the   transfer
         restrictions applicable to the Notes.

                  You,  the Issuer and  counsel  for the Issuer are  entitled to
rely upon this letter and are irrevocably authorized to produce this letter or a
copy hereof to any interested party in any  administrative  or legal proceedings
or official  inquiry with respect to the matters covered  hereby.  Terms used in
this certificate have the meanings set forth in Regulation S.

                                     Very truly yours,

                                     [Name of Transferor]


                                     By:
                                              Authorized Signature




                                      D-1
<PAGE>

                                                                   EXHIBIT E


                                    GUARANTEE


         For value received, the undersigned hereby unconditionally  guarantees,
as  principal  obligor and not only as a surety,  to the Holder of this Note the
cash payments in United States  dollars of principal  of,  premium,  if any, and
interest on this Note (and including Additional Interest payable thereon) in the
amounts  and at the  times  when  due and  interest  on the  overdue  principal,
premium, if any, and interest,  if any, of this Note, if lawful, and the payment
or performance of all other obligations of the Issuer under the Indenture or the
Notes,  to the Holder of this Note and the Trustee,  all in accordance  with and
subject  to the  terms  and  limitations  of this  Note,  Article  Eleven of the
Indenture and this Guarantee. This Guarantee will become effective in accordance
with Article  Eleven of the Indenture and its terms shall be evidenced  therein.
The validity and  enforceability  of any Guarantee  shall not be affected by the
fact that it is not affixed to any particular Note.  Capitalized  terms used but
not defined  herein  shall have the meanings  ascribed to them in the  Indenture
dated as of March  26,  1999,  among  Abraxas  Petroleum  Corporation,  a Nevada
corporation,  as Issuer (the "Issuer"), the Subsidiary Guarantors party thereto,
and Norwest Bank Minnesota, National Association, as trustee (the "Trustee"), as
amended or supplemented (the "Indenture").

         The  obligations of the  undersigned to the Holders of Notes and to the
Trustee  pursuant to this Guarantee and the Indenture are expressly set forth in
Article  Eleven of the  Indenture  and reference is hereby made to the Indenture
for the precise terms of the  Guarantee  and all of the other  provisions of the
Indenture to which this Guarantee relates.

         THIS GUARANTEE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE  WITH,
THE  LAWS OF THE  STATE OF NEW YORK  WITHOUT  GIVING  EFFECT  TO  PRINCIPLES  OF
CONFLICTS  OF LAW.  Each  Subsidiary  Guarantor  hereby  agrees to submit to the
jurisdiction  of the courts of the State of New York in any action or proceeding
arising out of or relating to this Guarantee.

         This  Guarantee  is subject to release  upon the terms set forth in the
Indenture.


                                      E-1
<PAGE>

         IN WITNESS WHEREOF,  each Subsidiary Guarantor has caused its Guarantee
to be duly executed.


Date:  ____________________

                NEW CACHE PETROLEUMS, LTD., as Guarantor


                        By:
                           Name:
                           Title:


                        By:
                           Name:
                           Title:


                CANADIAN ABRAXAS PETROLEUM, LTD., as Guarantor


                        By:
                           Name:
                           Title:


                        By:
                           Name:
                           Title:


                SANDIA OIL & GAS CORPORATION, as Guarantor


                        By:
                           Name:
                           Title:


                        By:
                           Name:
                           Title:




                                      E-2
<PAGE>
                                                                    EXHIBIT F

                         FORM OF SUPPLEMENTAL INDENTURE


         SUPPLEMENTAL INDENTURE (this "Supplemental Indenture") is dated as of ,
among [SUBSIDIARY GUARANTOR] (the "New Subsidiary  Guarantor"),  a subsidiary of
Abraxas  Petroleum  Corporation (or its successor),  a Nevada  corporation  (the
"Issuer")  under the Indenture  referred to below,  and NORWEST BANK  MINNESOTA,
NATIONAL  ASSOCIATION,  as trustee  under the  indenture  referred to below (the
"Trustee").


                                    RECITALS:

         WHEREAS the Issuer, Canadian Abraxas Petroleum Corporation,  an Alberta
corporation  ("Canadian  Abraxas"),  New  Cache  Petroleums,  Ltd.,  an  Alberta
corporation ("New Cache"), and Sandia Oil & Gas Corporation, a Texas corporation
("Sandia"  and together  with Canadian  Abraxas and New Cache,  the  "Subsidiary
Guarantors") have heretofore  executed and delivered to the Trustee an Indenture
(the "Indenture")  dated as of March 26, 1999,  providing for the issuance of an
aggregate  principal  amount of up to $63,500,000 of 12 f% Senior Notes due 2003
(the "Notes"); and

         WHEREAS  Section  4.20 of the  Indenture  provides  that under  certain
circumstances  the Issuer is required to cause the New  Subsidiary  Guarantor to
execute and deliver to the Trustee a  supplemental  indenture  pursuant to which
the New Subsidiary  Guarantor shall  unconditionally  guarantee all the Issuer's
obligations  under the Notes and the  Indenture  pursuant to a Guarantee  on the
terms and conditions set forth herein;

         NOW THEREFORE, in consideration of the foregoing and for other good and
valuable  consideration,  the receipt of which is hereby  acknowledged,  the New
Subsidiary Guarantor, the Issuer and the Trustee mutually covenant and agree for
the equal and ratable benefit of the Holders as follows:

         1. Agreement to Guarantee.  The New Subsidiary Guarantor hereby agrees,
to  unconditionally  guarantee the Issuer's  obligations under the Notes and the
Indenture on the terms and subject to the  conditions set forth in Article XI of
the  Indenture  and  to be  bound  by all  other  applicable  provisions  of the
Indenture.

         2. Ratification of Indenture; Supplemental Indenture Part of Indenture.
The Indenture, as supplemented hereby, is in all respects ratified and confirmed
and all the terms,  conditions and provisions thereof shall remain in full force
and effect.  This Supplemental  Indenture shall form a part of the Indenture for
all purposes,  and every holder of Notes  heretofore or hereafter  authenticated
and delivered shall be bound hereby.

         3. Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND
CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

         4. Trustee Makes No Representation. The Trustee makes no representation
as to the validity or sufficiency of this Supplemental Indenture.

         5.  Counterparts.  The  parties  may sign any  number of copies of this
Supplemental  Indenture.  Each signed copy shall be an original, but all of them
together represent the same agreement.

         6. Effect of Headings.  The Section headings herein are for convenience
only and shall not effect the construction thereof.



                                      F-1
<PAGE>


         IN WITNESS  WHEREOF,  the parties hereto have caused this  Supplemental
Indenture to be duly executed as of the date first above written.


                       [NEW SUBSIDIARY GUARANTOR]


                       By:
                       Name:
                       Title:


                       ABRAXAS PETROLEUM CORPORATION


                       By:
                       Name:
                       Title:


                       NORWEST BANK MINNESOTA, NATIONAL
                       ASSOCIATION, as Trustee


                       By:
                       Name:
                       Title:

                                      F-2
<PAGE>



                                  Exhibit 22.1


SUBSIDIARIES OF ABRAXAS

Abraxas Petroleum Corporation
        A Nevada Corporation ("Abraxas")

CanadianAbraxas Petroleum  Limited, a Canada  corporation  ("Canadian  Abraxas")
        and wholly owned subsidiary of Abraxas

Grey Wolf Exploration Inc.
        an Alberta corporation ("Grey Wolf")
        Abraxas owns 48% of the capital stock of Grey Wolf

Western Associated Energy Corporation
        a Texas corporation and wholly owned subsidiary
        of Abraxas


Sandia Oil & Gas Corporation
        a Texas corporation ("Sandia") and wholly owned subsidiary
        of Abraxas

New Cache Petroleums, LTD
        an Alberta corporation ("New Cache")
        Canadian Abraxas owns 100% of the capital stock of
        New Cache



<PAGE>
                                                                  EXHIBIT 10.25

                         ABRAXAS PETROLEUM CORPORATION
                       500 North Loop 1604 East, Suite 100
                            San Antonio, Texas 78232



                                                                 May 21, 1998


Robert W. Carington, Jr.
Abraxas Petroleum Corporation
500 North Loop 1604 East, Suite 100
San Antonio, Texas  78232

Dear Robert:

         The Board of Directors (the "Board") of Abraxas  Petroleum  Corporation
(the  "Company")  has  determined  that  appropriate  steps  should  be taken to
reinforce and encourage the continued attention and dedication of members of the
Company's management,  including yourself, to their assigned duties. In order to
induce  you to remain in the employ of the  Company,  in  consideration  of your
agreement to continue employment with the Company,  and in consideration of your
agreement to the termination of any existing  employment or severance  agreement
you may have with the Company,  the Company agrees that you shall receive,  upon
the terms and conditions set forth herein, the benefits set forth in this letter
agreement ("Agreement") during the term hereof.

         1. Terms of Agreement. This Agreement shall commence on the date hereof
and shall continue in effect through  December 31, 1998 (the "Term");  provided,
however,  that commencing on January 1, 1999 and each January 1 thereafter,  the
Term shall  automatically  be extended for an additional year unless,  not later
than December 1 of the preceding year, either party shall have given notice that
it does not wish to extend the Term.  Except in the event of a Change in Control
(as defined in Section 4 hereof),  at all times during the Term or extended Term
your  employment  shall remain at will and may be  terminated by the Company for
any reason  without  notice or Cause (as  hereinafter  defined).  If a Change in
Control shall have occurred during the original or extended Term, the Term shall
continue  in  effect  for a  period  of 48  months  beyond  the  Term in  effect
immediately before such Change in Control.

         2. Term of  Employment.  During the Term,  you agree to be a  full-time
employee of the Company serving in the position of Executive Vice President,  to
devote  substantially all of your working time and attention to the business and
affairs  of  the  Company  and,  to  the  extent   necessary  to  discharge  the
responsibilities  associated  with your  position,  to use your best  efforts to
perform faithfully and efficiently such responsibilities. In addition, you agree
to serve in such  other  capacities  or  offices  to which you may be  assigned,
appointed  or  elected  from time to time by the  Board.  Nothing  herein  shall
prohibit  you from  devoting  your time to civic  and  community  activities  or
managing  personal  investments,  as long as the foregoing do not interfere with
the performance of your duties hereunder.

         3.  Compensation.  (a) As  compensation  for your  services  under this
Agreement,  you shall be entitled to receive base salary and other  compensation
to be  determined  from  time to time by the  Board in its sole  discretion.  In
addition,  you  shall  be  entitled  to  participate  in any  additional  bonus,
incentive  compensation or employee benefit arrangement which may be established
from  time  to time  by the  Company  in its  sole  discretion.  Notwithstanding
anything  to the  contrary  provided  in this  Agreement,  prior to a Change  in
Control you shall not be entitled to receive any  compensation  from the Company
upon termination, voluntary or involuntary, of your employment with the Company,
regardless of the reason for such termination.

         (b) The Company shall  reimburse you, in accordance with Company policy
in effect from time to time, for all reasonable travel,  entertainment and other
business  expenses  incurred by you in the performance of your  responsibilities
under this  Agreement  promptly upon receipt of written  substantiation  of such
expenses.

         4.  Change in Control.  For  purposes  of this  Agreement,  a Change in
Control shall be deemed to have occurred if (a) any "person" or "group" (as such
terms are used in  Section  13(d) and 14(d) of the  Securities  Exchange  Act of
1934, as amended, (the "Exchange Act")) is or becomes the "beneficial owner" (as
defined in Rule 13d-3 under the  Exchange  Act as in effect on the date  hereof,
except that a person shall be deemed to be the "beneficial  owner" of all shares
that any such  person  has the right to acquire  pursuant  to any  agreement  or
arrangement  or  upon  exercise  of  conversion  rights,  warrants,  options  or
otherwise,  without  regard to the sixty day period  referred  to in such Rule),
directly or indirectly,  of securities  representing 20% or more of the combined
voting power of the Company's  then  outstanding  securities,  (b) any person or
group  shall  make a tender  offer or an  exchange  offer for 20% or more of the
combined voting power of the Company's then outstanding  securities,  (c) at any
time during any period of two consecutive  years (not including any period prior
to the execution of this  Agreement),  individuals  who at the beginning of such
period constituted the Board and any new directors,  whose election by the Board
or nomination for election by the Company's  stockholders was approved by a vote
of at least two-thirds  (2/3) of the Company  directors then still in office who
either  were the  Company  directors  at the  beginning  of the  period or whose
election or  nomination  for  election  was  previously  so  approved  ("Current
Directors"),  cease for any reason to  constitute  a majority  thereof,  (d) the
Company shall  consolidate,  merge or exchange  securities with any other entity
and the  stockholders  of the Company  immediately  before the effective time of
such transaction do not beneficially  own,  immediately after the effective time
of such  transaction,  shares  entitling such  stockholders to a majority of all
votes  (without  consideration  of the rights of any class of stock  entitled to
elect  directors  by a separate  class  vote) to which all  stockholders  of the
corporation  issuing cash or  securities in the  consolidation,  merger or share
exchange  would be entitled  for the purpose of electing  directors or where the
Current  Directors  immediately  after the effective time of the  consolidation,
merger  or share  exchange  would  not  constitute  a  majority  of the Board of
Directors of the  corporation  issuing cash or securities in the  consolidation,
merger or share exchange, or (e) any person or group acquires 50% or more of the
Company's assets.

         Notwithstanding  the foregoing,  however, a Change in Control shall not
be deemed to occur merely by reason of an acquisition of Company  securities by,
or any  consolidation,  merger or exchange of securities  with, any entity that,
immediately  prior to such  acquisition,  consolidation,  merger or  exchange of
securities,  was a  "subsidiary",  as such  term is  defined  below.  For  these
purposes,  the term  "subsidiary"  means (i) any corporation of which 80% of the
capital  stock of such  corporation  is owned,  directly or  indirectly,  by the
Company and (ii) any unincorporated  entity in respect of which the Company has,
directly or indirectly, an equivalent degree of ownership.

         5. Termination of Employment  Following  Change in Control.  Prior to a
Change in Control, your employment shall remain at will and may be terminated by
the Company for any reason without  notice or Cause.  From and after a Change in
Control,  you shall be entitled to the  benefits  provided  in  Subsection  6(d)
hereof upon the  subsequent  termination of your  employment  during the Term or
extended Term unless such termination is because of your death or Retirement, by
the Company for Cause or Disability, or by you other than for Good Reason.

         (a) Disability;  Retirement.  If, as a result of your incapacity due to
physical  or mental  illness,  you shall  have been  absent  from the  full-time
performance of your duties with the Company for six (6) consecutive  months, and
within thirty (30) days after written  Notice of  Termination is given you shall
not have returned to the full-time  performance of your duties,  the Company may
terminate your employment for  "Disability." Any question as to the existence of
your  Disability upon which you and the Company cannot agree shall be determined
by a qualified  independent  physician selected by you (or, if you are unable to
make  such  selection,  it shall be made by any adult  member of your  immediate
family),  and approved by the Company.  The determination of such physician made
in  writing  to the  Company  and to you shall be final and  conclusive  for all
purposes of this Agreement. Termination by the Company or you of your employment
based on  "Retirement"  shall mean  termination in accordance with the Company's
retirement  policy,  generally  applicable  to  its  salaried  employees  or  in
accordance with any retirement  arrangement  established  with your consent with
respect to you.

         (b) Cause.  Termination  by the Company of your  employment for "Cause"
shall mean  termination  upon (i) the  willful and  continued  failure by you to
substantially  perform your duties with the Company (other than any such failure
resulting  from your  incapacity  due to physical or mental  illness or any such
actual or anticipated failure resulting from termination by you for Good Reason)
after a written  demand for  substantial  performance is delivered to you by the
Board,  which  demand  specifically  identifies  the  manner  in which the Board
believes  that you have not  substantially  performed  your duties,  or (ii) the
willful  engaging  by  you in  conduct  which  is  demonstrably  and  materially
injurious  to the  Company,  monetarily  or  otherwise.  For  purposes  of  this
Subsection,  no act, or failure to act,  on your part shall be deemed  "willful"
unless  done,  or  omitted  to be done,  by you not in good  faith  and  without
reasonable  belief that your action or omission was in the best  interest of the
Company.  Notwithstanding  the  foregoing,  you shall not be deemed to have been
terminated  for Cause unless and until there shall have been  delivered to you a
copy of a  resolution  duly  adopted by the  affirmative  vote (which  cannot be
delegated)  of not less than a majority  of the members of the Board who are not
officers  of the  Company  at a meeting  of the Board  called  and held for such
purposes (after  reasonable  notice to you and an opportunity for you,  together
with your counsel, to be heard before the Board), finding that in the good faith
opinion of the Board you were  guilty of conduct  set forth above in clauses (i)
or (ii) of the first sentence of this  Subsection and specifying the particulars
thereof in detail.

         (c) Good Reason. You shall be entitled to terminate your employment for
Good Reason.  For purposes of this Agreement,  "Good Reason" shall mean, without
your express written consent, any of the following:

                  (i) a material  adverse  alteration in the nature or status of
your position, duties or responsibilities from those in effect immediately prior
to a Change in Control, other than any such alteration primarily attributable to
the  fact  that the  Company  may no  longer  be a  public  company  or may be a
subsidiary of another entity;

                  (ii) a  reduction  in your  annual  base  salary  as in effect
immediately  prior to the Change in Control or as the same may be increased from
time to time;

                  (iii) a change in the principal place of your  employment,  as
in effect at the time of a Change in Control, to a location more than fifty (50)
miles from such principal place of employment,  excluding required travel on the
Company's  business  to an extent  substantially  consistent  with your  present
business travel obligations;

                  (iv) the failure by the Company,  without your consent, to pay
to you any portion of your current compensation, or to pay to you any portion of
any  deferred  compensation,   within  ten  (10)  days  of  the  date  any  such
compensation payment is due;

                  (v) the  failure  by the  Company  to  continue  in effect any
compensation  plan in which you  participate,  or any  substitute  plans adopted
prior to the Change in Control,  unless an equitable arrangement (embodied in an
ongoing  substitute or alternative plan) has been made with respect to such plan
in  connection  with the Change in  Control,  or the  failure by the  Company to
continue  your  participation  therein on the same  basis,  both in terms of the
amount of  benefits  provided  and the level of your  participation  relative to
other participants, as existed at the time of the Change in Control;

                  (vi) the  failure by the  Company to  continue  to provide you
with  benefits at least as  favorable  to those  enjoyed by you under any of the
Company's pension,  life insurance,  medical,  health and accident,  disability,
deferred  compensation or savings plans in which you were  participating  at the
time of the Change in  Control,  the taking of any action by the  Company  which
would directly or indirectly  materially  reduce any of such benefits or deprive
you of any material  fringe benefit  enjoyed by you at the time of the Change in
Control,  or the  failure by the  Company to provide you with the number of paid
vacation days to which you are entitled on the basis of the  Company's  practice
with respect to you as in effect at the time of the Change in Control;

                  (vii) the  failure  of the  Company  to obtain a  satisfactory
agreement from any successor to assume and agree to perform this  Agreement,  as
contemplated in Section 7 hereof; or

                  (viii) any purported  termination of your employment  which is
not effected pursuant to a Notice of Termination  satisfying the requirements of
Subsection (d) below (and, if  applicable,  the  requirements  of Subsection (b)
above); for purposes of this Agreement,  no such purported  termination shall be
effective.

         (d) Notice of  Termination.  Prior to a Change in  Control,  you may be
terminated  with or  without  notice.  From and after a Change in  Control,  any
purported  termination  of your  employment  by the  Company  or by you shall be
communicated  by written  notice to the other party  hereto in  accordance  with
Section 8 hereof  ("Notice of  Termination").  Such Notice of Termination  shall
indicate the specific  termination  provision in this Agreement  relied upon and
shall set forth in  reasonable  detail  the facts and  circumstances  claimed to
provide a basis for  termination  of your  employment  under the  provisions  so
indicated.

         (e) Date of  Termination,  Etc. Prior to a Change in Control,  "Date of
Termination" shall mean the date your employment is terminated. From and after a
Change in Control,  "Date of  Termination"  shall mean (i) if your employment is
terminated  for  Disability,  30 days  after  Notice  of  Termination  is  given
(provided that you shall not have returned to the full-time  performance of your
duties  during such 30 day period),  and (ii) if your  employment  is terminated
pursuant to  Subsections  5(b) or 5(c) above or for any other reason (other than
Disability), the date specified in the Notice of Termination (which, in the case
of a  termination  pursuant to  Subsection  5(b) above shall not be less than 10
days, and in the case of a termination  pursuant to Subsection  5(c) above shall
not be less  than 30 nor more  than 60 days,  respectively,  from the date  such
Notice of Termination is given) (except for a termination pursuant to Subsection
5(c)(vii), in which event the date upon which any succession referred to therein
becomes effective shall be deemed the Date of Termination);  provided that if at
any time from and after a Change in  Control  within 30 days after any Notice of
Termination is given the party receiving such Notice of Termination notifies the
other  party  that a dispute  exists  concerning  the  termination,  the Date of
Termination shall be the date on which the dispute is finally determined, either
by mutual written agreement of the parties,  by a binding  arbitration award, or
by a final judgment, order or decree of a court of competent jurisdiction (which
is not appealable or the time for appeal  therefrom having expired and no appeal
having  been  perfected);  provided  further  that at any time  from and after a
Change in  Control  the Date of  Termination  shall be  extended  by a notice of
dispute  only if such  notice is given in good faith and the party  giving  such
notice pursues the resolution of such dispute with  reasonable  diligence.  From
and after a Change in Control,  the Company  will  continue to pay you your full
compensation  in effect  when the notice  giving  rise to the  dispute was given
(including,  but not limited to, base salary) or, if higher, the compensation in
effect as of the Change in Control,  and  continue you as a  participant  in all
compensation,  benefit and insurance plans in which you were  participating when
the notice  giving rise to the  dispute was given,  until the dispute is finally
resolved in accordance with this Subsection 5(e),  notwithstanding  the pendency
of any such dispute.  Amounts paid under this  Subsection  5(e) from and after a
Change in Control are in addition to all other amounts due under this  Agreement
and shall not be offset  against  or reduce  any other  amounts  due under  this
Agreement.  Prior to a Change in  Control,  you shall not be entitled to be paid
any  compensation  or other amounts due under this  Agreement from and after the
Date of Termination.

        6. Compensation Upon Termination or During Disability.  From and after a
Change in Control,  upon  termination  of your  employment or during a period of
Disability you shall be entitled to the following benefits:

        (a) During any period  that you fail to perform  your  full-time  duties
with the Company as a result of your  Disability,  you shall continue to receive
your base salary at the rate in effect at the  commencement  of any such period,
together with all  compensation  payable to you under the  Company's  disability
plan or other plan  during  such  period,  until this  Agreement  is  terminated
pursuant  to  Subsection  5(a)  hereof.  Thereafter,   your  benefits  shall  be
determined in  accordance  with the Company's  long-term  disability  plan as in
effect immediately prior to a Change in Control.

        (b) If your  employment  shall be terminated by the Company for Cause or
by you other than for Good Reason, Disability,  death or Retirement, the Company
shall pay you your full base salary  through the Date of Termination at the rate
in effect at the time Notice of  Termination is given and any amounts to be paid
to you pursuant to the  Company's  retirement  and other  benefits  plans of the
Company then in effect, and the Company shall have no further obligations to you
under this Agreement.

        (c) If your employment  shall be terminated by the Company or by you for
Retirement,  or by reason of your death,  your  benefits  shall be determined in
accordance with the Company's retirement, benefit and insurance programs then in
effect.

        (d) If your employment by the Company shall be terminated by the Company
other  than for  Cause and other  than  because  of your  death,  Disability  or
Retirement  or by  you  for  Good  Reason  then,  effective  as of the  Date  of
Termination,  in lieu of any severance  benefits  which you  otherwise  would be
eligible to receive  under the Company's  severance  plan or policy as in effect
immediately  prior to the  Change  in  Control,  you  shall be  entitled  to the
benefits provided below:

               (i) The Company  shall pay you your full base salary  through the
Date of  Termination at the rate in effect at the time the Notice of Termination
is  given,  plus  all  other  amounts  to  which  you  are  entitled  under  any
compensation  or benefit plan of the Company  (excluding any severance  benefits
under the Company's  severance plan or policy) at the time such payments are due
under the terms of such plans.

               (ii) In lieu of any  further  salary  payments to you for periods
subsequent to the Date of  Termination,  the Company shall pay to you, not later
than the fifth day following the Date of  Termination,  a lump sum payment equal
to four times your annual base salary.

               (iii)  The  Company  shall  also  pay to you all  legal  fees and
expenses  incurred by you as a result of such  termination  (including  all such
fees  and  expenses,  if any,  incurred  in  contesting  or  disputing  any such
termination or in seeking to obtain or enforce any right or benefit  provided by
this  Agreement) in the event that you prevail in any claim brought  against the
Company in connection with such termination.

               (iv)  Notwithstanding  any other provision of this Agreement,  if
any amount payable hereunder  ("Payments") would,  individually or together with
any other  amounts paid or payable,  constitute an "excess  parachute  payment",
within the meaning of Section 280G of the Internal  Revenue Code of 1986 and any
applicable  regulations  thereunder (the "Code") which would require the payment
by you of the excise tax imposed by Section  4999 of the Code or any interest or
penalty (such excise tax,  together with any such  interest and  penalties,  are
hereinafter  collectively  referred to as the "Excise  Tax"),  then you shall be
entitled to receive an additional Payment (the "Gross-Up  Payment") in an amount
such that  after the  payment by you of all taxes  (including  any  interest  or
penalties imposed with respect to such taxes) including, without limitation, any
income  taxes (and any  interest and  penalties  with  respect  thereto) and the
Excise Tax imposed upon the Gross-Up Payment,  you shall retain an amount of the
Gross-Up  Payment equal to the Excise Tax imposed upon the total  Payments to be
received by you pursuant to this  Agreement.  The  determination  of whether the
Gross-Up  Payment  shall  be  paid  shall  be made  by a  nationally  recognized
accounting firm selected by you and such determination shall be binding upon you
and the Company for purposes of this  Agreement.  The costs and expenses of such
accounting firm shall be paid by the Company.

        (e) Except as specifically  provided in this Section 6, you shall not be
required to mitigate the amount of any payment provided for in this Section 6 by
seeking other  employment  or otherwise,  nor shall the amount of any payment or
benefit provided for in this Section 6 be reduced by any compensation  earned by
you as the result of  employment by another  employer or by retirement  benefits
after the Date of Termination, or otherwise.

        (f) In addition to all other  amounts  payable to you under this Section
6, you shall be entitled to receive all benefits  payable to you under any other
plan or agreement  relating to retirement  benefits in accordance with the terms
of such plan or agreement.

        7.  Successors;  Binding  Agreement.  (a) The Company  will  require any
successor  (whether direct or indirect,  by purchase,  merger,  consolidation or
otherwise)  to all or  substantially  all of the business  and/or  assets of the
Company to  expressly  assume and agree to perform  this  Agreement  in the same
manner and to the same extent  that the Company  would be required to perform it
if no such  succession had taken place.  Such  assumption and agreement shall be
obtained  prior to the  effectiveness  of any such  succession.  As used in this
Agreement,  "Company"  shall mean the Company as herein  before  defined and any
successor to its business and/or assets as aforesaid which assumes and agrees to
perform this  Agreement by operation of law, or otherwise.  Prior to a Change in
Control,  the term  "Company"  shall also mean any  affiliate  of the Company to
which you may be transferred and Company shall cause such successor  employer to
be  considered  the  "Company"  bound by the  terms of this  Agreement  and this
Agreement shall be amended to so provide. Following a Change in Control the term
"Company"  shall  not mean any  affiliate  of the  Company  to which  you may be
transferred  unless you shall  have  previously  approved  of such  transfer  in
writing,  in which case the Company  shall cause such  successor  employer to be
considered  "Company"  bound by the terms of this  Agreement and this  Agreement
shall be amended to so provide.

        (b) This  Agreement  shall inure to the benefit of and be enforceable by
your personal or legal representatives,  executors, administrators,  successors,
heirs,  distributees,  devisees and legatees. If you should die while any amount
would still be payable to you hereunder if you had  continued to live,  all such
amounts,  unless otherwise provided herein, shall be paid in accordance with the
terms of this Agreement to your devisee,  legatee or other designee or, if there
is no such designee, to your estate.

        8.  Notice.  For the  purpose of this  Agreement,  notices and all other
communications  provided for in the  Agreement  shall be in writing and shall be
deemed  to have been  duly  given  when  delivered  or  mailed by United  States
registered mail,  return receipt  requested,  postage prepaid,  addressed to the
respective  addresses  set forth on the first page of this  Agreement,  provided
that all notices to the Company  shall be directed to the attention of the Board
with a copy to the Secretary of the Company,  or to such other address as either
party may have furnished to the other in writing in accordance herewith,  except
that notice of change of address shall be effective only upon receipt.

        9  Miscellaneous.  No  provision  of this  Agreement  shall be modified,
waived or discharged unless such waiver,  modification or discharge is agreed to
in writing and signed by you and such officer as may be specifically  designated
by the Board.  No waiver by either party hereto at any time of any breach by the
other party hereto of, or  compliance  with,  any condition or provision of this
Agreement  to be  performed  by such  other  party  shall be  deemed a waiver of
similar or  dissimilar  provisions  or conditions at the same or at any prior or
subsequent time. No agreements or representations, oral or otherwise, express or
implied,  with  respect to the  subject  matter  hereof have been made by either
party  which  are not  expressly  set  forth in this  Agreement.  THE  VALIDITY,
INTERPRETATION, CONSTRUCTION AND PERFORMANCE OF THIS AGREEMENT SHALL BE GOVERNED
BY THE LAWS OF THE STATE OF TEXAS.

        10 Validity. The invalidity or unenforceability of any provision of this
Agreement shall not affect the validity or enforceability of any other provision
of this Agreement, which shall remain in full force and effect.

        11.   Counterparts.   This   Agreement   may  be   executed  in  several
counterparts,  each of which shall be deemed to be an original  but all of which
together will constitute one and the same instrument.

        12.  Arbitration.  THIS  AGREEMENT IS SUBJECT TO  ARBITRATION  UNDER THE
TEXAS ARBITRATION ACT. Any dispute or controversy arising under or in connection
with this Agreement shall be settled  exclusively by arbitration in San Antonio,
Texas in accordance with the rules of the American Arbitration  Association then
in effect. Judgment may be entered on the arbitrator's award in any court having
jurisdiction;  provided,  however,  that you shall be entitled to seek  specific
performance  of your right to be paid until the Date of  Termination  during the
pendency of any dispute or controversy  arising under or in connection with this
Agreement.

        13. Entire  Agreement.  This Agreement  contains the entire agreement by
the parties with respect to the matters  covered herein and supersedes any prior
agreement  (including,  without  limitation,  any prior  employment or severance
agreement),  condition,  practice,  custom, usage and obligation with respect to
such matters insofar as any such prior agreement,  condition,  practice, custom,
usage or obligation might have given rise to any enforceable right.



<PAGE>


        If this letter sets forth our  agreement on the subject  matter  hereof,
kindly  sign and return to the Company the  enclosed  copy of this letter  which
will then constitute our agreement on this subject.

                                    Sincerely,

                                    ABRAXAS PETROLEUM CORPORATION



                                    By:                                      
                                          Robert L. G. Watson
                                          Chief Executive Officer


Agreed to this ___ day of
_______________, 1998



Robert W. Carington, Jr.

                                       43
<PAGE>
                                                      
                                                                  EXHIBIT 10.26

                         REGISTRATION RIGHTS AGREEMENT

                           Dated as of March 26, 1999

                                  By and Among

                         ABRAXAS PETROLEUM CORPORATION,

                       CANADIAN ABRAXAS PETROLEUM LIMITED,

                           NEW CACHE PETROLEUMS LTD.,

                         SANDIA OIL AND GAS CORPORATION

                                       and

                           JEFFERIES & COMPANY, INC.,
                              as Initial Purchaser


                      12.875% Senior Secured Notes due 2003




<PAGE>


                                TABLE OF CONTENTS


                                                                         Page

1.       Definitions  .................................................... 1

2.       Exchange Offer................................................... 5

3.       Shelf Registration............................................... 9

4.       Liquidated Damages...............................................11

5.       Registration Procedures..........................................13

6.       Registration Expenses............................................25

7.       Indemnification..................................................26

8.       Rules 144 and 144A...............................................31

9.       Underwritten Registrations.......................................31

10.      Miscellaneous....................................................32

         (a)      No Inconsistent Agreements..............................32
         (b)      Adjustments Affecting Transfer Restricted Securities....32
         (c)      Amendments and Waivers..................................32
         (d)      Notices.................................................33
         (e)      Successors and Assigns..................................33
         (f)      Release of Subsidiary Guarantors........................34
         (g)      Counterparts............................................34
         (h)      Headings................................................34
         (i)      Governing Law...........................................34
         (j)      Severability............................................34
         (k)      Securities Held by the Issuers or Their
                      Affiliates..........................................34
         (l)      Third Party Beneficiaries...............................34
         (m)      Entire Agreement........................................35
         (n)      Information Supplied by the Participants................35
         (o)      Subsidiary Guarantor a Party............................35

                                       i
<PAGE>




                          REGISTRATION RIGHTS AGREEMENT

                  This Registration  Rights Agreement (the "Agreement") is dated
as of March 26,  1999,  by and among  ABRAXAS  PETROLEUM  CORPORATION,  a Nevada
corporation (the  "Company"),  CANADIAN ABRAXAS  PETROLEUM  LIMITED,  an Alberta
corporation and a wholly-owned  subsidiary of the Company  ("Canadian  Abraxas")
and NEW  CACHE  PETROLEUMS  LTD.,  an  Alberta  corporation  and a  wholly-owned
subsidiary of Canadian Abraxas ("New Cache") and SANDIA OIL AND GAS CORPORATION,
a Texas corporation and a wholly-owned subsidiary of the Company ("Sandia"), and
JEFFERIES & COMPANY,  INC. as initial purchaser (the "Initial  Purchaser").  The
Company,  Canadian  Abraxas,  New Cache and Sandia are referred to herein as the
"Issuers".

                  This Agreement is entered into in connection with the Purchase
Agreement,  dated as of March 19, 1999, by and among the Issuers and the Initial
Purchaser  (the  "Purchase  Agreement"),  which  provides  for  the  sale by the
Company,  Canadian Abraxas and New Cache to the Initial Purchaser of $63,500,000
aggregate  principal amount of such companies'  12.875% Senior Secured Notes due
2003,  Series A (the  "Notes"),  unconditionally  guaranteed on a senior secured
basis by  Sandia,  initially,  and by each of the  Company's  future  Restricted
Subsidiaries  (as  defined  in the  Indenture)  (collectively,  the  "Subsidiary
Guarantors").  In  order to  induce  the  Initial  Purchaser  to enter  into the
Purchase  Agreement,  the Issuers have agreed to provide the registration rights
set forth in this  Agreement  for the benefit of the Initial  Purchaser  and any
subsequent  holder or holders of the Notes.  The  execution and delivery of this
Agreement is a condition to the Initial  Purchaser's  obligation to purchase the
Notes under the Purchase Agreement.

                  The parties hereby agree as follows:

1.       Definitions

                  As used in this Agreement,  the following terms shall have the
following meanings:

                  Advice:  See Section 5 hereof.

                  Agreement:  See the introductory paragraphs hereto.

                  Applicable Period:  See Section 2 hereof.

                  Canadian Abraxas:  See the introductory paragraphs hereto.

                  Company:  See the introductory paragraphs hereto.

                                       1
<PAGE>


                  Damages Payment Date: With respect to the Notes, each Interest
Payment Date.

                  Effectiveness   Date:   With   respect  to  any   Registration
Statement, the 60th day after the Filing Date with respect thereto.

                  Effectiveness Period:  See Section 3 hereof.

                  Event Date:  See Section 4 hereof.

                  Exchange Act: The Securities Exchange Act of 1934, as amended,
and the rules and regulations of the SEC promulgated thereunder.

                  Exchange Notes:  See Section 2 hereof.

                  Exchange Offer:  See Section 2 hereof.

                  Exchange Offer Registration Statement:  See Section 2 hereof.

                  Filing Date:  If no  Registration  Statement has been filed by
the  Issuers  pursuant  to this  Agreement,  the 75th day after the Issue  Date;
provided,  however,  that if a Shelf Notice is given,  then the Filing Date with
respect to the Initial Shelf  Registration  shall be the 60th calendar day after
the date of the giving of such Shelf Notice.

                  Holder:  Any  holder  of a  Transfer  Restricted  Security  or
Transfer Restricted Securities.

                  Indemnified Person:  See Section 7(c) hereof.

                  Indemnifying Person:  See Section 7(c) hereof.

                  Indenture:  The Indenture,  dated as of March 26, 1999, by and
among the Issuers and Norwest  Bank  Minnesota,  N.A.,  as trustee,  pursuant to
which the Notes are being  issued,  as the same may be amended  or  supplemented
from time to time in accordance with the terms thereof.

                  Initial  Purchaser:  See the introductory paragraphs hereto.

                  Initial Shelf Registration:  See Section 3(a) hereof.

                  Inspectors:  See Section 5(o) hereof.

                  Interest  Payment  Date:  As defined in the  Indenture and the
Notes.

                                       2
<PAGE>

                  Issue Date:  March 26, 1999, the date of original  issuance of
the Notes.

                  Issuers:  See the introductory paragraphs hereto.

                  Liquidated Damages:  See Section 4 hereof.

                  New Cache:  See the introductory paragraph hereto.

                  NASD:  See Section 5(t) hereof.

                  Participant:  See Section 7(a) hereof.

                  Participating Broker-Dealer:  See Section 2 hereof.

                  Person:  An  individual,  trustee,  corporation,  partnership,
joint  stock  company,  trust,  unincorporated   association,   union,  business
association, firm or other legal entity.

                  Private Exchange:  See Section 2 hereof.

                  Private Exchange Notes:  See Section 2 hereof.

                  Prospectus:   The  prospectus  included  in  any  Registration
Statement (including,  without limitation,  any prospectus subject to completion
and a  prospectus  that  includes  any  information  previously  omitted  from a
prospectus filed as part of an effective registration statement in reliance upon
Rule 430A promulgated under the Securities Act and any term sheet filed pursuant
to Rule 434 under  the  Securities  Act),  as  amended  or  supplemented  by any
prospectus  supplement,   and  all  other  amendments  and  supplements  to  the
Prospectus,  including post-effective  amendments, and all material incorporated
by reference or deemed to be incorporated by reference in such Prospectus.

                  Purchase Agreement:  See the introductory paragraphs hereof.

                  Records:  See Section 5(o) hereof.

                  Registration Default:  As defined in Section 4.

                  Registration  Statement:  Any  registration  statement  of the
Issuers and the Subsidiary Guarantors (if any) that covers any of the Notes, the
Exchange  Notes or the  Private  Exchange  Notes  filed  with the SEC  under the
Securities  Act,  including the  Prospectus,  amendments and supplements to such
registration statement,  including post-effective  amendments, all exhibits, and


                                       3
<PAGE>

all material incorporated by reference or deemed to be incorporated by reference
in such registration statement.

                  Rule 144: Rule 144  promulgated  under the Securities  Act, as
such Rule may be amended from time to time, or any similar rule (other than Rule
144A) or regulation  hereafter adopted by the SEC providing for offers and sales
of  securities  made in  compliance  therewith  resulting in offers and sales by
subsequent holders that are not affiliates of an issuer of such securities being
free of the registration and prospectus delivery  requirements of the Securities
Act.

                  Rule 144A: Rule 144A promulgated  under the Securities Act, as
such Rule may be amended from time to time, or any similar rule (other than Rule
144) or regulation hereafter adopted by the SEC.

                  Rule 415: Rule 415  promulgated  under the Securities  Act, as
such Rule may be amended from time to time,  or any similar  rule or  regulation
hereafter adopted by the SEC.

                  Sandia:  See the introductory paragraph hereto.

                  SEC:  The Securities and Exchange Commission.

                  Securities  Act: The Securities  Act of 1933, as amended,  and
the rules and regulations of the SEC promulgated thereunder.

                  Security  Documents:  The Security Documents as defined in the
Purchase Agreement.

                  Shelf Notice:  See Section 2 hereof.

                  Shelf Registration:  See Section 3(b) hereof.

                  Subsequent Shelf Registration:  See Section 3(b) hereof.

                  Subsidiary Guarantor:  See the introductory paragraphs hereto.

                  TIA:  The Trust Indenture Act of 1939, as amended.

                  Transfer Restricted  Securities.  Each Note until (i) the date
on which such Note has been exchanged by a person other than a Broker-Dealer for
an  Exchange  Note in the  Exchange  Offer,  (ii)  following  the  exchange by a
Broker-Dealer  in the Exchange Offer of a Note for an Exchange Note, the date on
which  such  Exchange  Note  is sold  to a  purchaser  who  receives  from  such
Broker-Dealer  on or  prior to the  date of such  sale a copy of the  Prospectus


                                       4
<PAGE>

contained in the Exchange Offer Registration Statement,  (iii) the date on which
such  Note has been  effectively  registered  under the Act and  disposed  of in
accordance with the Shelf Registration  Statement or (iv) the date on which such
Note is distributed  to the public  pursuant to Rule 144 under the Act or may be
distributed to the public pursuant to Rule 144(k) under the Act.

                  Trustee:  The trustee  under the Indenture and the trustee (if
any) under any  indenture  governing  the  Exchange  Notes and Private  Exchange
Notes.

                  Underwritten   registration   or  underwritten   offering:   A
registration  in which  securities of the Issuers are sold to an underwriter for
reoffering to the public.

2.       Exchange Offer

                  (a) To the extent  permitted by  applicable  law or applicable
interpretation  of the staff of the Division of Corporation  Finance of the SEC,
the  Issuers  shall  file  with  the SEC,  no later  than  the  Filing  Date,  a
Registration  Statement  (the  "Exchange  Offer  Registration  Statement") on an
appropriate  registration form with respect to a registered offer (the "Exchange
Offer") to exchange any and all of the Transfer Restricted Securities for a like
aggregate  principal  amount of notes (the  "Exchange  Notes")  of the  Issuers,
guaranteed  by any then  existing  Subsidiary  Guarantor and secured by the same
collateral  as the Notes,  that are  identical in all  material  respects to the
Notes  except  that the  Exchange  Notes  (and the  guarantees,  if any,  of the
Subsidiary Guarantors) shall contain no restrictive legend thereon. The Exchange
Offer shall comply with all applicable  tender offer rules and regulations under
the  Exchange  Act and  other  applicable  law.  The  Issuers  shall  use  their
respective best efforts to (x) cause the Exchange Offer  Registration  Statement
to be declared effective under the Securities Act on or before the Effectiveness
Date;  (y) keep the  Exchange  Offer  open  for at least 30 days (or  longer  if
required by applicable  law) after the date that notice of the Exchange Offer is
mailed to Holders;  and (z)  consummate  the  Exchange  Offer on or prior to the
165th day following the Issue Date.  If, after the Exchange  Offer  Registration
Statement is initially  declared effective by the SEC, the Exchange Offer or the
issuance of the Exchange Notes  thereunder is interfered with by any stop order,
injunction or other order or  requirement  of the SEC or any other  governmental
agency or court, the Exchange Offer  Registration  Statement shall be deemed not
to have become effective for purposes of this Agreement.

                  Each Holder that  participates  in the Exchange  Offer will be
required  to  represent  that any  Exchange  Notes to be  received by it will be
acquired  in the  ordinary  course  of its  business,  that  at the  time of the
consummation  of the  Exchange  Offer such  Holder will have no  arrangement  or


                                       5
<PAGE>

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 any of the Issuers  within the meaning of the  Securities
Act.


                  No securities  other than the Exchange Notes shall be included
in the Exchange Offer Registration Statement.

                  (b) The Issuers shall include within the Prospectus  contained
in the  Exchange  Offer  Registration  Statement  a  section  entitled  "Plan of
Distribution,"  reasonably  acceptable  to the  Holders,  which shall  contain a
summary  statement of the  positions  taken or policies made by the staff of the
SEC with respect to the potential "underwriter" status of any broker-dealer that
is the  beneficial  owner (as defined in Rule 13d-3 under the  Exchange  Act) of
Exchange  Notes  received  by  such  broker-dealer  in  the  Exchange  Offer  (a
"Participating  Broker-Dealer"),  whether such  positions or policies  have been
publicly  disseminated  by the staff of the SEC or such  positions  or  policies
represent  the  prevailing  views  of  the  staff  of the  SEC.  Such  "Plan  of
Distribution"  section shall also expressly  permit,  to the extent permitted by
applicable policies and regulations of the SEC, the use of the Prospectus by all
Persons subject to the prospectus  delivery  requirements of the Securities Act,
including, to the extent permitted by applicable policies and regulations of the
SEC, all Participating  Broker-Dealers,  and include a statement  describing the
means by which  Participating  Broker-Dealers  may resell the Exchange  Notes in
compliance with the Securities Act.

                  The Issuers  shall use their  respective  best efforts to keep
the Exchange Offer Registration  Statement effective and to amend and supplement
the  Prospectus  contained  therein  in order to permit  such  Prospectus  to be
lawfully   delivered  by  all  Persons   subject  to  the  prospectus   delivery
requirements  of the  Securities  Act for such period of time as is necessary to
comply with  applicable law in connection  with any resale of the Exchange Notes
covered thereby;  provided,  however, that such period shall not exceed 180 days
after such Exchange Offer Registration  Statement is declared effective (or such
longer  period if extended  pursuant to the last  paragraph of Section 5 hereof)
(the "Applicable Period").

                  If, prior to consummation  of the Exchange  Offer,  any Holder
holds any Notes  acquired by it that have, or that are  reasonably  likely to be
determined  to  have,   the  status  of  an  unsold   allotment  in  an  initial
distribution,  or any Holder is not  entitled  to  participate  in the  Exchange
Offer, the Issuers upon the request of any such Holder shall simultaneously with
the delivery of the Exchange Notes in the Exchange  Offer,  issue and deliver to
any such Holder, in exchange (the "Private Exchange") for such Notes held by any


                                       6
<PAGE>

such Holder, a like principal amount of notes (the "Private  Exchange Notes") of
the Issuers, guaranteed by any then existing Subsidiary Guarantor and secured by
the same  collateral as the Exchange  Notes,  that are identical in all material
respects  to the  Exchange  Notes.  The Private  Exchange  Notes shall be issued
pursuant to the same  indenture  as the  Exchange  Notes and bear the same CUSIP
number as the Exchange Notes.

                  Interest on the Exchange Notes and the Private  Exchange Notes
will accrue from (A) the later of (i) the last  interest  payment  date on which
interest was paid on the Notes  surrendered in exchange  therefor or (ii) if the
Notes are  surrendered  for  exchange on a date in a period  which  includes the
record date for an interest  payment  date to occur on or after the date of such
exchange  and as to  which  interest  will be paid,  the  date of such  interest
payment date or (B) if no interest has been paid on the Notes,  from the date of
the original issuance of the Notes.

                  In connection with the Exchange Offer, the Issuers shall:

                  (1) mail,  or cause to be mailed,  to each Holder  entitled to
         participate in the Exchange Offer a copy of the Prospectus forming part
         of  the  Exchange  Offer  Registration  Statement,   together  with  an
         appropriate letter of transmittal and related documents;

                  (2) keep the  Exchange  Offer  open for not less  than 30 days
         after the date that notice of the  Exchange  Offer is mailed to Holders
         (or longer if required by applicable law);

                  (3) utilize  the  services of a  depositary  for the  Exchange
         Offer  with an address in the  Borough  of  Manhattan,  The City of New
         York;

                  (4) permit  Holders  to  withdraw  tendered  Notes at any time
         prior to the close of business, New York time, on the last business day
         on which the Exchange Offer shall remain open; and

                  (5)  otherwise  comply  in  all  material  respects  with  all
         applicable laws, rules and regulations.

                  As soon as  practicable  after the close of the Exchange Offer
         and the Private Exchange, if any, the Issuers shall:

                  (1) accept for  exchange all  Transfer  Restricted  Securities
         validly  tendered  and not validly  withdrawn  pursuant to the Exchange
         Offer and the Private Exchange, if any;

                  (2)  deliver to the  Trustee  for  cancellation  all  Transfer
         Restricted Securities so accepted for exchange; and

                                       7
<PAGE>

                  (3) cause the Trustee to authenticate  and deliver promptly to
         each Holder of Notes,  Exchange Notes or Private Exchange Notes, as the
         case may be, equal in  principal  amount to the Notes of such Holder so
         accepted for exchange.

                  The  Exchange  Offer  and the  Private  Exchange  shall not be
subject to any  conditions,  other than that (i) the  Exchange  Offer or Private
Exchange,  as the case may be, does not violate applicable law or any applicable
interpretation  of the staff of the SEC, (ii) no action or proceeding shall have
been 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 or the Private  Exchange,  and no material adverse  development shall have
occurred in any existing  action or  proceeding  with respect to the Issuers and
(iii) all governmental  approvals shall have been obtained,  which approvals the
Issuers deem  necessary for the  consummation  of the Exchange  Offer or Private
Exchange.

                  The  Exchange  Notes and the Private  Exchange  Notes shall be
issued under (i) the  Indenture  or (ii) an indenture  identical in all material
respects to the Indenture and which,  in either case, has been  qualified  under
the TIA or is exempt from such qualification and shall provide that the Exchange
Notes  shall  not be  subject  to the  transfer  restrictions  set  forth in the
Indenture and that the Exchange Notes, the Private Exchange Notes and the Notes,
if any, will be deemed one class of security  (subject to the  provisions of the
Indenture)  and  entitled  to  participate  in all the  security  granted by the
Issuers pursuant to the Security  Documents and in any Subsidiary  Guarantee (as
such terms are  defined in the  Indenture)  on an equal and ratable  basis.  The
Indenture or such indenture shall provide that the Exchange  Notes,  the Private
Exchange  Notes and the Notes shall vote and consent  together on all matters as
one class and that none of the Exchange Notes, the Private Exchange Notes or the
Notes will have the right to vote or consent as a separate class on any matter.

                  (c) If, (i) the Issuers  are not  required to file an Exchange
Offer  Registration  Statement  or permitted to  consummate  the Exchange  Offer
because the Exchange  Offer is not  permitted by  applicable  law or  Commission
policy  (after the  procedures  set forth in Section 5 below have been  complied
with) or (ii) any Holder of Transfer Restricted  Securities notifies the Issuers
prior to the 20th day following the  consummation of the Exchange Offer (A) that
such  Holder  is  prohibited  by  applicable  law  or  Commission   policy  from
participating  in the Exchange  Offer or (B) that such Holder may not resell the
Exchange  Notes  acquired  by it in the  Exchange  Offer to the  public  without
delivering a prospectus and that the Prospectus  contained in the Exchange Offer
Registration  Statement is not available  for such resales by such Holder,  then
the Issuers shall promptly deliver to the Holders and the Trustee written notice
thereof  (the "Shelf  Notice") and shall file a Shelf  Registration  pursuant to
Section 3 hereof.

                                       8
<PAGE>

3.       Shelf Registration

                  If at any time a Shelf Notice is delivered as  contemplated by
Section 2(c) hereof, then:

                  (a) Shelf Registration.  The Issuers shall file with the SEC a
Registration Statement for an offering to be made on a continuous basis pursuant
to Rule 415  covering  all of the  Transfer  Restricted  Securities  covered  by
Section 2(c)(ii) above (the "Initial Shelf Registration"). The Issuers shall use
their  respective  diligent  best efforts to file with the SEC the Initial Shelf
Registration  on or  before  the  applicable  Filing  Date.  The  Initial  Shelf
Registration  shall  be on  Form  S-1 or  another  appropriate  form  permitting
registration of such Transfer Restricted Securities for resale by Holders in the
manner or manners designated by them (including, without limitation, one or more
underwritten offerings).  The Issuers shall not permit any securities other than
the  Transfer  Restricted  Securities  to  be  included  in  the  Initial  Shelf
Registration or any Subsequent Shelf Registration (as defined below).

                  The Issuers shall use their  respective  best efforts to cause
the Initial Shelf Registration to be declared effective under the Securities Act
on or prior to the Effectiveness Date and to keep the Initial Shelf Registration
continuously  effective  under the  Securities  Act until the date  which is two
years from the  Effectiveness  Date,  subject to extension  pursuant to the last
paragraph  of Section 5 hereof (the  "Effectiveness  Period"),  or such  shorter
period ending when (i) all Transfer Restricted Securities covered by the Initial
Shelf Registration have been sold in the manner set forth and as contemplated in
the Initial Shelf Registration or (ii) a Subsequent Shelf Registration  covering
all of the  Transfer  Restricted  Securities  covered  by and not sold under the
Initial Shelf  Registration or an earlier Subsequent Shelf Registration has been
declared  effective  under  the  Securities  Act;  provided,  however,  that the
Effectiveness  Period in  respect of the  Initial  Shelf  Registration  shall be
extended to the extent  required to permit dealers to comply with the applicable
prospectus  delivery  requirements  of Rule 174 under the  Securities Act and as
otherwise  provided  herein and shall be subject to reduction to the extent that
the applicable provisions of Rule 144 are amended or revised.

                  No holder of Transfer Restricted Securities may include any of
its Transfer Restricted Securities in any Shelf Registration  Statement pursuant
to this  Agreement  unless and until such  holder  furnishes  to the  Issuers in
writing, within 30 days after receipt of a request therefor, such information as
the  Issuers  may  reasonably  request  for use in  connection  with  any  Shelf
Registration Statement or Prospectus or preliminary prospectus included therein.
No holder of Transfer  Restricted  Securities  shall be  entitled to  Liquidated
Damages  pursuant to Section 4 hereof  unless and until such  holder  shall have


                                       9
<PAGE>

provided  all such  reasonably  requested  information.  Each holder of Transfer
Restricted  Securities  as to which any Shelf  Registration  Statement  is being
effected agrees to furnish  promptly to the Issuers all information  required to
be disclosed in order to make information previously furnished to the Issuers by
such Holder not materially misleading.

                  (b)  Subsequent  Shelf  Registrations.  If the  Initial  Shelf
Registration or any Subsequent Shelf Registration ceases to be effective for any
reason at any time during the  Effectiveness  Period  (other than because of the
sale of all of the  securities  registered  thereunder),  the Issuers  shall use
their  respective  best  efforts to obtain the  prompt  withdrawal  of any order
suspending the effectiveness  thereof,  and in any event shall within 30 days of
such cessation of effectiveness amend the Initial Shelf Registration in a manner
to obtain the withdrawal of the order suspending the effectiveness  thereof,  or
file an additional "shelf" Registration  Statement pursuant to Rule 415 covering
all of the  Transfer  Restricted  Securities  covered  by and not sold under the
Initial Shelf Registration or an earlier Subsequent Shelf Registration  (each, a
"Subsequent Shelf  Registration").  If a Subsequent Shelf Registration is filed,
the Issuers  shall use their  respective  best  efforts to cause the  Subsequent
Shelf  Registration to be declared effective under the Securities Act as soon as
practicable  after such filing and to keep such  subsequent  Shelf  Registration
continuously  effective  for a  period  equal  to  the  number  of  days  in the
Effectiveness  Period less the aggregate number of days during which the Initial
Shelf   Registration  or  any  Subsequent  Shelf   Registration  was  previously
continuously  effective.  As used herein the term "Shelf Registration" means the
Initial Shelf Registration and any Subsequent Shelf Registration.

                  (c)  Supplements  and  Amendments.  The Issuers shall promptly
supplement  and  amend  any  Shelf   Registration  if  required  by  the  rules,
regulations or instructions  applicable to the  registration  form used for such
Shelf  Registration,  if  required  by  the  Securities  Act,  or if  reasonably
requested  by the Holders of a majority  in  aggregate  principal  amount of the
Transfer Restricted Securities covered by such Registration  Statement or by any
underwriter of such Transfer Restricted Securities.

4.       Liquidated Damages

                  (a) The  Issuers  and the  Initial  Purchaser  agree  that the
Holders  will suffer  damages if the Issuers fail to fulfill  their  obligations
under  Section  2 or  Section  3 hereof  and that it would  not be  feasible  to
ascertain the extent of such damages with  precision.  Accordingly,  the Issuers
agree, jointly and severally, to pay, as liquidated damages, additional interest
on the Notes  ("Liquidated  Damages") under the  circumstances and to the extent
set forth below (each of which shall be given independent effect):

                                       10
<PAGE>

                    (i) if (A) neither the Exchange Offer Registration Statement
         nor the Initial  Shelf  Registration  has been filed on or prior to the
         applicable  Filing Date or (B)  notwithstanding  that the Issuers  have
         consummated  or will  consummate  the Exchange  Offer,  the Issuers are
         required to file a Shelf  Registration  and such Shelf  Registration is
         not filed on or prior to the  Filing  Date  applicable  thereto,  then,
         commencing  on the day after any such Filing Date,  Liquidated  Damages
         shall accrue on the principal amount of the Notes at a rate of $.05 per
         week per $1,000  principal  amount of Notes held by such Holder for the
         first 90 days  immediately  following  each such Filing Date,  and such
         Liquidated  Damages shall  increase by an additional  $.05 per week per
         $1,000  principal  amount at the  beginning of each  subsequent  90-day
         period; or

                   (ii) if (A) neither the Exchange Offer Registration Statement
         nor the Initial Shelf  Registration is declared effective by the SEC on
         or prior to the relevant Effectiveness Date or (B) notwithstanding that
         the Issuers have consummated or will consummate the Exchange Offer, the
         Issuers  are  required  to file a Shelf  Registration  and  such  Shelf
         Registration  is not  declared  effective by the SEC on or prior to the
         Effectiveness  Date  in  respect  of  such  Shelf  Registration,  then,
         commencing on the day after such Effectiveness Date, Liquidated Damages
         shall accrue on the principal amount of the Notes at a rate of $.05 per
         week per $1,000  principal  amount of Notes held by such Holder for the
         first 90 days  immediately  following the day after such  Effectiveness
         Date, and such Liquidated  Damages shall increase by an additional $.05
         per  week  per  $1,000  principal  amount  at  the  beginning  of  each
         subsequent 90-day period; or

                  (iii) if (A) the Issuers have not exchanged Exchange Notes for
         all Notes validly tendered in accordance with the terms of the Exchange
         Offer on or prior to the  165th  day  after  the  Issue  Date or (B) if
         applicable,  a Shelf  Registration has been declared effective and such
         Shelf  Registration  ceases  to be  effective  at any time  during  the
         Effectiveness  Period,  then  Liquidated  Damages  shall  accrue on the
         principal  amount  of the  Notes at a rate of $.05 per week per  $1,000
         principal  amount of Notes  held by such  Holder  for the first 90 days
         commencing  on the (x) 166th day after such Issue Date,  in the case of
         (A)  above,  or (y)  the  day  such  Shelf  Registration  ceases  to be
         effective in the case of (B) above,  and such Liquidated  Damages shall
         increase by an additional $.05 per week per $1,000  principal amount at
         the  beginning of each such  subsequent  90-day period (each such event
         referred  to  in  clauses  (i)  through  (iii)  above  a  "Registration
         Default");

provided,  however,  that the Liquidated  Damages on the Notes may not exceed at
any one time in the aggregate $.20 per week per $1,000 principal amount of Notes


                                       11
<PAGE>

held by such Holder; provided, further, however, that (1) upon the filing of the
applicable  Exchange  Offer  Registration  Statement  or  the  applicable  Shelf
Registration  as  required  hereunder  (in the case of clause  (i) above of this
Section  4),  (2) upon the  effectiveness  of the  Exchange  Offer  Registration
Statement or the applicable Shelf  Registration  Statement as required hereunder
(in the case of clause (ii) of this  Section 4), or (3) upon the exchange of the
applicable Exchange Notes for all Notes tendered (in the case of clause (iii)(A)
of  this  Section  4),  or  upon  the  effectiveness  of  the  applicable  Shelf
Registration  Statement  which had  ceased to remain  effective  (in the case of
(iii)(B) of this Section 4), Liquidated Damages on the Notes in respect of which
such  events  relate  as a result  of such  clause  (or the  relevant  subclause
thereof), as the case may be, shall cease to accrue.

                  (b) The Issuers  shall notify the Trustee  within one business
day after  each and every  date on which an event  occurs  in  respect  of which
Liquidated  Damages are  required to be paid (an "Event  Date").  Any amounts of
Liquidated Damages due pursuant to (a)(i), (a)(ii) or (a)(iii) of this Section 4
will be payable  in cash  semi-annually  on each  Damages  Payment  Date (to the
holders of record (the "Record Holders") on the regular record date therefor (as
specified in the Indenture)  immediately preceding such dates),  commencing with
the first such date  occurring  after any such  Liquidated  Damages  commence to
accrue.  The amount of Liquidated  Damages will be determined by multiplying the
applicable Liquidated Damages by the principal amount of the Transfer Restricted
Securities,  multiplied  by a fraction,  the numerator of which is the number of
days such Liquidated  Damages were applicable during such period  (determined on
the basis of a 360-day year  comprised of twelve  30-day months and, in the case
of a partial month,  the actual number of days elapsed),  and the denominator of
which is 360. All accrued Liquidated Damages shall be paid to the Record Holders
by the Issuers by wire  transfer of  immediately  available  funds or by federal
funds check on each Damages Payment Date. Following the cure of all Registration
Defaults relating to any particular Transfer Restricted Securities,  the accrual
of Liquidated Damages with respect to such Transfer  Restricted  Securities will
cease.

5.       Registration Procedures

                  In connection  with the filing of any  Registration  Statement
pursuant to Sections 2 or 3 hereof,  the Issuers shall effect such registrations
to permit the sale of the  securities  covered  thereby in  accordance  with the
intended method or methods of disposition  thereof,  and pursuant thereto and in
connection with any  Registration  Statement filed by the Issuers  hereunder the
Issuers shall:

                  (a)  Prepare  and file  with the SEC  prior to the  applicable
         Filing Date, a  Registration  Statement or  Registration  Statements as
         prescribed  by Sections 2 or 3 hereof,  and use their  respective  best


                                       12
<PAGE>

         efforts to cause each such  Registration  Statement to become effective
         and remain effective as provided herein;  provided,  however,  that, if
         (1) such filing is pursuant  to Section 3 hereof,  or (2) a  Prospectus
         contained in the Exchange Offer  Registration  Statement filed pursuant
         to Section 2 hereof is required to be  delivered  under the  Securities
         Act by any Participating Broker-Dealer who seeks to sell Exchange Notes
         during  the  Applicable  Period  relating  thereto,  before  filing any
         Registration  Statement or Prospectus or any  amendments or supplements
         thereto,  the  Issuers  shall  furnish to and afford the Holders of the
         Transfer Restricted  Securities covered by such Registration  Statement
         or each such  Participating  Broker-Dealer,  as the case may be,  their
         counsel and the managing underwriters, if any, a reasonable opportunity
         to  review  copies  of all  such  documents  (including  copies  of any
         documents  to be  incorporated  by  reference  therein and all exhibits
         thereto) proposed to be filed (in each case at least five days prior to
         such  filing,   or  such  later  date  as  is   reasonable   under  the
         circumstances).  The Issuers shall not file any Registration  Statement
         or Prospectus or any amendments or  supplements  thereto if the Holders
         of a majority in aggregate  principal amount of the Transfer Restricted
         Securities  covered  by  such  Registration   Statement,  or  any  such
         Participating Broker-Dealer,  as the case may be, their counsel, or the
         managing underwriters, if any, shall reasonably object.

                  (b)  Prepare  and  file  with  the  SEC  such  amendments  and
         post-effective  amendments  to each  Shelf  Registration  Statement  or
         Exchange Offer  Registration  Statement,  as the case may be, as may be
         necessary to keep such Registration  Statement  continuously  effective
         for the Effectiveness  Period or the Applicable Period, as the case may
         be; cause the related  Prospectus to be  supplemented by any Prospectus
         supplement  required by applicable  law, and as so  supplemented  to be
         filed  pursuant to Rule 424 (or any similar  provisions  then in force)
         promulgated under the Securities Act; and comply with the provisions of
         the Securities Act and the Exchange Act applicable to each of them with
         respect  to  the   disposition  of  all  securities   covered  by  such
         Registration  Statement  as so  amended  or in  such  Prospectus  as so
         supplemented  and  with  respect  to  the  subsequent   resale  of  any
         securities being sold by a Participating  Broker-Dealer  covered by any
         such  Prospectus.  The  Issuers  shall be deemed not to have used their
         respective  diligent  best  efforts  to keep a  Registration  Statement
         effective during the Effective Period or the Applicable  Period, as the
         case may be, relating thereto if any of the Issuers  voluntarily  takes
         any  action  that  would  result in  selling  Holders  of the  Transfer
         Restricted  Securities covered thereby or Participating  Broker-Dealers
         seeking to sell  Exchange  Notes not being  able to sell such  Transfer
         Restricted  Securities or such Exchange Notes during that period unless
         (i) such  action is  required by  applicable  law or (ii) such  Issuers


                                       13
<PAGE>

         comply with the  provisions of the last sentence of Section 5(k) or the
         last paragraph of this Section 5.

                  (c) If (1) a Shelf Registration is filed pursuant to Section 3
         hereof,   or  (2)  a  Prospectus   contained  in  the  Exchange   Offer
         Registration  Statement  filed pursuant to Section 2 hereof is required
         to  be  delivered  under  the  Securities  Act  by  any   Participating
         Broker-Dealer  who seeks to sell Exchange  Notes during the  Applicable
         Period  relating  thereto  from whom the Company has  received  written
         notice that it will be a  Participating  Broker-Dealer  in the Exchange
         Offer, notify the selling Holders of Transfer Restricted Securities, or
         each  such  Participating  Broker-Dealer,  as the  case  may be,  their
         counsel and the managing  underwriters,  if any,  promptly  (but in any
         event within one day),  and confirm such notice in writing,  (i) when a
         Prospectus or any Prospectus supplement or post-effective amendment has
         been  filed,  and,  with  respect to a  Registration  Statement  or any
         post-effective  amendment, when the same has become effective under the
         Securities Act  (including in such notice a written  statement that any
         Holder may, upon request,  obtain,  at the sole expense of the Issuers,
         one conformed  copy of such  Registration  Statement or  post-effective
         amendment  including  financial  statements  and  schedules,  documents
         incorporated  or deemed to be  incorporated by reference and exhibits),
         (ii)  of the  issuance  by the SEC of any  stop  order  suspending  the
         effectiveness of a Registration Statement or of any order preventing or
         suspending the use of any  preliminary  prospectus or the initiation of
         any  proceedings  for  that  purpose,  (iii)  if at  any  time  when  a
         prospectus  is  required  by  the  Securities  Act to be  delivered  in
         connection with sales of the Transfer Restricted  Securities or resales
         of Exchange Notes by Participating  Broker-Dealers the  representations
         and  warranties  of any  of  the  Issuers  contained  in any  agreement
         (including any  underwriting  agreement)  contemplated  by Section 5(m)
         hereof cease to be true and correct in all material  respects,  (iv) of
         the receipt by any of the Issuers of any  notification  with respect to
         the suspension of the qualification or exemption from  qualification of
         a Registration  Statement or any of the Transfer Restricted  Securities
         or the Exchange Notes to be sold by any Participating Broker-Dealer for
         offer or sale in any jurisdiction,  or the initiation or threatening of
         any proceeding for such purpose, (v) of the happening of any event, the
         existence of any condition or any information becoming known that makes
         any statement made in such Registration Statement or related Prospectus
         or any document  incorporated or deemed to be  incorporated  therein by
         reference untrue in any material respect or that requires the making of
         any  changes  in or  amendments  or  supplements  to such  Registration
         Statement,  Prospectus  or  documents  so  that,  in  the  case  of the
         Registration  Statement,  it will not contain any untrue statement of a
         material  fact or omit to state any material fact required to be stated
         therein or necessary to make the statements therein not misleading, and


                                       14
<PAGE>

         that in the case of the  Prospectus,  it will not  contain  any  untrue
         statement  of a  material  fact or  omit to  state  any  material  fact
         required  to be stated  therein  or  necessary  to make the  statements
         therein,  in light of the circumstances under which they were made, not
         misleading,  and  (vi)  of  any of the  Issuers'  determination  that a
         post-effective   amendment  to  a  Registration   Statement   would  be
         appropriate.

                  (d) If (1) a Shelf Registration is filed pursuant to Section 3
         hereof,   or  (2)  a  Prospectus   contained  in  the  Exchange   Offer
         Registration  Statement  filed pursuant to Section 2 hereof is required
         to  be  delivered  under  the  Securities  Act  by  any   Participating
         Broker-Dealer  who seeks to sell Exchange  Notes during the  Applicable
         Period,  use their  respective  best efforts to prevent the issuance of
         any order suspending the  effectiveness of a Registration  Statement or
         of any  order  preventing  or  suspending  the use of a  Prospectus  or
         suspending the qualification  (or exemption from  qualification) of any
         of the Transfer Restricted  Securities or the Exchange Notes to be sold
         by any Participating Broker-Dealer,  for sale in any jurisdiction, and,
         if any such order is issued,  to use their  respective  best efforts to
         obtain the withdrawal of any such order at the earliest possible date.

                  (e) Subject to the  provisions of the last sentence of Section
         5(k),  if a Shelf  Registration  is filed  pursuant to Section 3 and if
         requested by the managing  underwriter  or  underwriters  (if any), the
         Holders of a majority in  aggregate  principal  amount of the  Transfer
         Restricted  Securities  being sold in connection  with an  underwritten
         offering  or  any   Participating   Broker-Dealer,   (i)   promptly  as
         practicable  incorporate in a prospectus  supplement or  post-effective
         amendment such information as the managing  underwriter or underwriters
         (if any), such Holders, any Participating  Broker-Dealer or counsel for
         any of them reasonably  request to be included  therein,  (ii) make all
         required filings of such prospectus  supplement or such  post-effective
         amendment  as soon as  practicable  after  either  Issuer has  received
         notification  of the  matters  to be  incorporated  in such  prospectus
         supplement or  post-effective  amendment,  and (iii) supplement or make
         amendments to such Registration Statement;  provided, however, that the
         Issuers  shall not be  required  to take any  action  pursuant  to this
         Section 5(e) that would violate applicable law.

                  (f) If (1) a Shelf Registration is filed pursuant to Section 3
         hereof,   or  (2)  a  Prospectus   contained  in  the  Exchange   Offer
         Registration  Statement  filed pursuant to Section 2 hereof is required
         to  be  delivered  under  the  Securities  Act  by  any   Participating
         Broker-Dealer  who seeks to sell Exchange  Notes during the  Applicable
         Period,   furnish  to  each  selling  Holder  of  Transfer   Restricted


                                       15
<PAGE>

         Securities and to each such Participating Broker-Dealer who so requests
         and to  counsel  and each  managing  underwriter,  if any,  at the sole
         expense  of  the  Issuers,  one  conformed  copy  of  the  Registration
         Statement or Registration Statements and each post-effective  amendment
         thereto,   including  financial  statements  and  schedules,   and,  if
         requested,  all  documents  incorporated  or deemed to be  incorporated
         therein by reference and all exhibits.

                  (g) If (1) a Shelf Registration is filed pursuant to Section 3
         hereof,   or  (2)  a  Prospectus   contained  in  the  Exchange   Offer
         Registration  Statement  filed pursuant to Section 2 hereof is required
         to  be  delivered  under  the  Securities  Act  by  any   Participating
         Broker-Dealer  who seeks to sell Exchange  Notes during the  Applicable
         Period,   deliver  to  each  selling  Holder  of  Transfer   Restricted
         Securities, or each such Participating  Broker-Dealer,  as the case may
         be, their respective counsel, and the underwriters, if any, at the sole
         expense  of  the  Issuers,   as  many  copies  of  the   Prospectus  or
         Prospectuses  (including each form of preliminary  prospectus) and each
         amendment  or  supplement  thereto and any  documents  incorporated  by
         reference therein as such Persons may reasonably request;  and, subject
         to the last  paragraph  of this  Section 5, each of the Issuers  hereby
         consents to the use of such Prospectus and each amendment or supplement
         thereto  by  each  of  the  selling  Holders  of  Transfer   Restricted
         Securities or each such  Participating  Broker-Dealer,  as the case may
         be, and the  underwriters  or agents,  if any, and dealers (if any), in
         connection  with  the  offering  and  sale of the  Transfer  Restricted
         Securities  covered by, or the sale by Participating  Broker-Dealers of
         the Exchange  Notes  pursuant to, such  Prospectus and any amendment or
         supplement thereto.

                  (h)  Prior  to any  public  offering  of  Transfer  Restricted
         Securities  or any delivery of a  Prospectus  contained in the Exchange
         Offer  Registration  Statement by any  Participating  Broker-Dealer who
         seeks to sell Exchange Notes during the Applicable Period, to use their
         respective  best efforts to register or qualify,  and to cooperate with
         the selling  Holders of  Transfer  Restricted  Securities  or each such
         Participating   Broker-Dealer,   as  the  case  may  be,  the  managing
         underwriter or underwriters,  if any, and their  respective  counsel in
         connection with the  registration or  qualification  (or exemption from
         such  registration  or  qualification)  of  such  Transfer   Restricted
         Securities  for offer and sale under the securities or Blue Sky laws of
         such  jurisdictions  within the United  States as any  selling  Holder,
         Participating   Broker-Dealer,   or   the   managing   underwriter   or
         underwriters  reasonably request in writing;  provided,  however,  that
         where Exchange Notes held by Participating  Broker-Dealers  or Transfer
         Restricted  Securities  are offered other than through an  underwritten
         offering,  the Issuers agree to cause their counsel to perform Blue Sky


                                       16
<PAGE>

         investigations and file registrations and qualifications required to be
         filed  pursuant to this Section 5(h);  keep each such  registration  or
         qualification (or exemption therefrom) effective during the period such
         Registration  Statement is required to be kept effective and do any and
         all other acts or things  reasonably  necessary  or advisable to enable
         the  disposition  in such  jurisdictions  of the Exchange Notes held by
         Participating  Broker-Dealers  or the  Transfer  Restricted  Securities
         covered by the applicable  Registration Statement;  provided,  however,
         that none of the Issuers shall be required to (A) qualify  generally to
         do business in any jurisdiction where it is not then so qualified,  (B)
         take any action that would subject it to general  service of process in
         any such  jurisdiction  where it is not then so subject or (C)  subject
         itself to  taxation  in excess of a nominal  dollar  amount in any such
         jurisdiction where it is not then so subject.

                  (i) If a Shelf  Registration  is filed  pursuant  to Section 3
         hereof,  cooperate  with the  selling  Holders of  Transfer  Restricted
         Securities  and the managing  underwriter or  underwriters,  if any, to
         facilitate  the  timely   preparation   and  delivery  of  certificates
         representing   Transfer   Restricted   Securities  to  be  sold,  which
         certificates  shall not bear any restrictive  legends and shall be in a
         form eligible for deposit with The Depository Trust Company; and enable
         such Transfer  Restricted  Securities to be in such  denominations  and
         registered in such names as the managing  underwriter or  underwriters,
         if any, or Holders may request.

                  (j) Use their  respective  best  efforts to cause the Transfer
         Restricted  Securities  covered  by the  Registration  Statement  to be
         registered  with or  approved  by such other  governmental  agencies or
         authorities  as may be  reasonably  necessary  to enable  the seller or
         sellers  thereof  or  the  underwriter  or  underwriters,  if  any,  to
         consummate  the  disposition  of such Transfer  Restricted  Securities,
         except as may be required solely as a consequence of the nature of such
         selling Holder's business,  in which case the Issuers will cooperate in
         all reasonable respects with the filing of such Registration  Statement
         and the granting of such approvals.

                  (k) If (1) a Shelf Registration is filed pursuant to Section 3
         hereof,   or  (2)  a  Prospectus   contained  in  the  Exchange   Offer
         Registration  Statement  filed pursuant to Section 2 hereof is required
         to  be  delivered  under  the  Securities  Act  by  any   Participating
         Broker-Dealer  who seeks to sell Exchange  Notes during the  Applicable
         Period,  upon the  occurrence  of any event  contemplated  by paragraph
         5(c)(v) or 5(c)(vi)  hereof,  as promptly  as  practicable  prepare and
         (subject to Section 5(a) hereof) file with the SEC, at the sole expense
         of  the  Issuers,  a  supplement  or  post-effective  amendment  to the
         Registration Statement or a supplement to the related Prospectus or any


                                       17
<PAGE>

         document   incorporated  or  deemed  to  be  incorporated   therein  by
         reference,  or file any other required  document so that, as thereafter
         delivered to the purchasers of the Transfer Restricted Securities being
         sold thereunder or to the purchasers of the Exchange Notes to whom such
         Prospectus will be delivered by a Participating Broker-Dealer, any such
         Prospectus  will not contain an untrue  statement of a material fact or
         omit to  state  a  material  fact  required  to be  stated  therein  or
         necessary to make the statements therein, in light of the circumstances
         under  which  they  were  made,  not  misleading.  Notwithstanding  the
         foregoing,  the Issuers  shall not be required to amend or supplement a
         Registration   Statement,   any  related  prospectus  or  any  document
         incorporated  therein by reference in the event that,  and for a period
         (a "Black Out Period") not to exceed,  for so long as this Agreement is
         in  effect,  an  aggregate  of 45 days if (x) an  event  occurs  and is
         continuing as a result of which a Registration  Statement,  any related
         prospectus  or any document  incorporated  therein by reference as then
         amended or  supplemented  would,  in the Issuers' good faith  judgment,
         contain  an  untrue  statement  of a  material  fact or omit to state a
         material fact necessary in order to make the statements therein, in the
         light of the circumstances  under which they were made, not misleading,
         and (y) (1) the Issuers  determine in good faith that the disclosure of
         such event at such time would  have a  material  adverse  effect on the
         business,  operations or prospects of the Issuers or (2) the disclosure
         otherwise relates to a material business  transaction which has not yet
         been publicly disclosed in any relevant jurisdiction.

                  (l)  Prior to the  effective  date of the  first  Registration
         Statement relating to the Transfer Restricted  Securities,  (i) provide
         the Trustee with certificates for the Transfer Restricted Securities in
         a form eligible for deposit with The Depository  Trust Company and (ii)
         provide a CUSIP number for the Transfer Restricted Securities.

                  (m) In connection with any  underwritten  offering of Transfer
         Restricted  Securities pursuant to a Shelf Registration,  enter into an
         underwriting  agreement as is customary  in  underwritten  offerings of
         debt securities  similar to the Notes in form and substance  reasonably
         satisfactory  to the  Issuers  and take all such  other  actions as are
         reasonably  requested by the managing  underwriter or  underwriters  in
         order to expedite or facilitate the  registration or the disposition of
         such Transfer Restricted  Securities and, in such connection,  (i) make
         such  representations  and  warranties  to,  and  covenants  with,  the
         underwriters  with  respect to the  business  of the  Issuers and their
         respective subsidiaries (including any acquired business, properties or
         entity, if applicable) and the Registration  Statement,  Prospectus and
         documents,  if  any,  incorporated  or  deemed  to be  incorporated  by
         reference therein,  in each case, as are customarily made by issuers to


                                       18
<PAGE>

         underwriters  in underwritten  offerings of debt securities  similar to
         the Notes,  and  confirm the same in writing if and when  requested  in
         form and substance reasonably  satisfactory to the Issuers; (ii) obtain
         the written  opinions  of counsel to the  Issuers  and written  updates
         thereof in form,  scope and substance  reasonably  satisfactory  to the
         managing  underwriter or  underwriters,  addressed to the  underwriters
         covering  the  matters   customarily  covered  in  opinions  reasonably
         requested in  underwritten  offerings  and such other matters as may be
         reasonably requested by the managing underwriter or underwriters; (iii)
         use their best  efforts to obtain  "cold  comfort"  letters and updates
         thereof in form,  scope and substance  reasonably  satisfactory  to the
         managing  underwriter or underwriters  from the  independent  certified
         public  accountants  of the  Issuers  (and,  if  necessary,  any  other
         independent  certified  public  accountants of any subsidiary of any of
         the Issuers or of any business acquired by any of the Issuers for which
         financial  statements  and  financial  data are, or are required to be,
         included or incorporated by reference in the  Registration  Statement),
         addressed to each of the underwriters,  such letters to be in customary
         form and  covering  matters  of the type  customarily  covered in "cold
         comfort"  letters in  connection  with  underwritten  offerings of debt
         securities  similar to the Notes and such other  matters as  reasonably
         requested by the managing  underwriter or  underwriters as permitted by
         the Statement on Auditing Standards No. 72; and (iv) if an underwriting
         agreement  is  entered  into,  the same shall  contain  indemnification
         provisions  and  procedures  no  less  favorable  to  the  sellers  and
         underwriters, if any, than those set forth in Section 7 hereof (or such
         other provisions and procedures  acceptable to Holders of a majority in
         aggregate principal amount of Transfer Restricted Securities covered by
         such   Registration   Statement   and  the  managing   underwriter   or
         underwriters  or  agents,  if  any).  The  above  shall be done at each
         closing  under  such  underwriting  agreement,  or as and to the extent
         required thereunder.

                  (n) If (1) a Shelf Registration is filed pursuant to Section 3
         hereof,   or  (2)  a  Prospectus   contained  in  the  Exchange   Offer
         Registration  Statement  filed pursuant to Section 2 hereof is required
         to  be  delivered  under  the  Securities  Act  by  any   Participating
         Broker-Dealer  who seeks to sell Exchange  Notes during the  Applicable
         Period,  make  available for  inspection by any selling  Holder of such
         Transfer  Restricted  Securities being sold, or each such Participating
         Broker-Dealer, as the case may be, any underwriter participating in any
         such  disposition of Transfer  Restricted  Securities,  if any, and any
         attorney, accountant or other agent retained by any such selling Holder
         or each  such  Participating  Broker-Dealer,  as the  case  may be,  or
         underwriter  (collectively,  the  "Inspectors"),  at the offices  where
         normally kept,  during  reasonable  business  hours,  all financial and
         other records,  pertinent  corporate  documents and  instruments of the


                                       19
<PAGE>

         Issuers and their respective subsidiaries (collectively, the "Records")
         as shall  be  reasonably  necessary  to  enable  them to  exercise  any
         applicable  due  diligence  responsibilities,  and cause the  officers,
         directors   and   employees   of  the  Issuers  and  their   respective
         subsidiaries to supply all information reasonably requested by any such
         Inspector  in   connection   with  such   Registration   Statement  and
         Prospectus. Each Inspector shall agree in writing that it will keep the
         Records  confidential  and that it will not disclose any of the Records
         unless (i) the  disclosure  of such  Records is  necessary  to avoid or
         correct a misstatement  or omission in such  Registration  Statement or
         Prospectus,  (ii) the release of such Records is ordered  pursuant to a
         subpoena or other order from a court of competent  jurisdiction,  (iii)
         disclosure  of such  information  is  necessary  or  advisable,  in the
         opinion of counsel for any  Inspector,  in connection  with any action,
         claim,  suit  or  proceeding,  directly  or  indirectly,  involving  or
         potentially  involving  such  Inspector and arising out of, based upon,
         relating to, or involving this Agreement or the Purchase Agreement,  or
         any transactions contemplated hereby or thereby or arising hereunder or
         thereunder,  or (iv) the  information  in such  Records  has been  made
         generally available to the public; provided, however, that prior notice
         shall  be  provided  as  soon  as  practicable  to the  Issuers  of the
         potential  disclosure of any information by such Inspector  pursuant to
         clauses (ii) or (iii) of this  sentence to permit the Issuers to obtain
         a protective  order (or waive the provisions of this paragraph (n)) and
         that such Inspector shall take such actions as are reasonably necessary
         to protect the  confidentiality of such information (if practicable) to
         the  extent  such  action  is  otherwise  not  inconsistent   with,  an
         impairment  of or in  derogation  of the  rights and  interests  of the
         Holder  or  any  Inspector.   Each  selling  Holder  of  such  Transfer
         Restricted Securities and each such Participating Broker-Dealer will be
         required to agree that  information  obtained by it as a result of such
         inspections shall be deemed confidential and shall not be used by it as
         the basis for any market  transactions in the securities of the Issuers
         unless and until such is made generally  available to the public.  Each
         selling  Holder of such Transfer  Restricted  Securities  and each such
         Participating  Broker-Dealer  will be required to further agree that it
         will,  upon  learning  that  disclosure  of such Records is sought in a
         court of competent  jurisdiction,  give notice to the Issuers and allow
         the Issuers to undertake  appropriate  action to prevent  disclosure of
         the Records deemed confidential at the Issuers' expense.

                  (o) Provide an indenture  trustee for the Transfer  Restricted
         Securities  or the  Exchange  Notes,  as the case may be, and cause the
         Indenture or the trust  indenture  provided for in Section 2(a) hereof,
         as the case may be, to be  qualified  under the TIA not later  than the
         effective  date of the first  Registration  Statement  relating  to the
         Transfer Restricted Securities; and in connection therewith,  cooperate
         with the  trustee  under  any such  indenture  and the  Holders  of the

                                       20
<PAGE>

         Transfer  Restricted  Securities,   to  effect  such  changes  to  such
         indenture as may be required  for such  indenture to be so qualified in
         accordance  with the  terms  of the TIA;  and  execute,  and use  their
         respective best efforts to cause such trustee to execute, all documents
         as may be  required  to effect  such  changes,  and all other forms and
         documents required to be filed with the SEC to enable such indenture to
         be so qualified in a timely manner.

                  (p) Comply with all  applicable  rules and  regulations of the
         SEC and make generally  available to their  respective  securityholders
         earnings  statements  satisfying the provisions of Section 11(a) of the
         Securities Act and Rule 158 thereunder (or any similar rule promulgated
         under the  Securities  Act) no later  than 45 days after the end of any
         12-month  period  (or 90 days after the end of any  12-month  period if
         such period is a fiscal year) (i)  commencing  at the end of any fiscal
         quarter  in  which   Transfer   Restricted   Securities   are  sold  to
         underwriters in a firm commitment or best efforts underwritten offering
         and (ii) if not sold to underwriters in such an offering, commencing on
         the first day of the first  fiscal  quarter  of the  Issuers  after the
         effective  date of a Registration  Statement,  which  statements  shall
         cover said 12-month periods.

                  (q) Upon  consummation  of the  Exchange  Offer  or a  Private
         Exchange,  obtain an  opinion  of  counsel  to the  Issuers,  in a form
         customary for underwritten  transactions,  addressed to the Trustee for
         the  benefit  of  all  Holders  of   Transfer   Restricted   Securities
         participating  in the Exchange  Offer or the Private  Exchange,  as the
         case may be, that the Exchange Notes or Private  Exchange Notes, as the
         case may be, and the  related  indenture  constitute  legal,  valid and
         binding obligations of the Issuers,  enforceable against the Issuers in
         accordance with its respective terms,  subject to customary  exceptions
         and qualifications.

                  (r) If the  Exchange  Offer  or a  Private  Exchange  is to be
         consummated,  upon  delivery of the Transfer  Restricted  Securities by
         Holders to the  Issuers  (or to such other  Person as  directed  by the
         Issuers) in exchange  for the  Exchange  Notes or the Private  Exchange
         Notes,  as the case may be,  the  Issuers  shall  mark,  or cause to be
         marked,  on such  Transfer  Restricted  Securities  that such  Transfer
         Restricted  Securities are being cancelled in exchange for the Exchange
         Notes or the Private  Exchange  Notes,  as the case may be; in no event
         shall  such  Transfer  Restricted  Securities  be  marked  as  paid  or
         otherwise satisfied.

                  (s)  Cooperate   with  each  seller  of  Transfer   Restricted
         Securities covered by any Registration  Statement and each underwriter,
         if any,  participating  in the disposition of such Transfer  Restricted
         Securities and their respective  counsel in connection with any filings
         required  to be  made  with  the  National  Association  of  Securities
         Dealers, Inc. (the "NASD").

                                       21
<PAGE>

                  (t) Use their  respective best efforts to take all other steps
         reasonably  necessary to effect the  registration of the Exchange Notes
         and/or  Transfer  Restricted   Securities  covered  by  a  Registration
         Statement contemplated hereby.

                  The  Issuers may  require  each seller of Transfer  Restricted
Securities  as to which any  registration  is being  effected  to furnish to the
Issuers such  information  regarding  such seller and the  distribution  of such
Transfer Restricted Securities as the Issuers may, from time to time, reasonably
request.  The Issuers may exclude from such registration the Transfer Restricted
Securities  of any  seller  so  long  as  such  seller  fails  to  furnish  such
information  within a reasonable time after receiving such request.  Each seller
as to which any Shelf  Registration is being effected agrees to furnish promptly
to the Issuers all  information  required to be  disclosed  in order to make the
information  previously  furnished to the Issuers by such seller not  materially
misleading.

                  If any such  Registration  Statement  refers to any  Holder by
name or otherwise  as the holder of any  securities  of the  Issuers,  then such
Holder shall have the right to require (i) the insertion therein of language, in
form and substance  reasonably  satisfactory to such Holder,  to the effect that
the  holding  by such  Holder of such  securities  is not to be  construed  as a
recommendation  by such  Holder  of the  investment  quality  of the  securities
covered  thereby  and that such  holding  does not imply that such  Holder  will
assist in meeting any future  financial  requirements of any of the Issuers,  or
(ii) in the event that such reference to such Holder by name or otherwise is not
required by the Securities Act or any similar federal statute then in force, the
deletion of the  reference to such Holder in any  amendment or supplement to the
Registration  Statement  filed or  prepared  subsequent  to the time  that  such
reference ceases to be required.

                  Each  Holder  of  Transfer  Restricted   Securities  and  each
Participating   Broker-Dealer   agrees  by  its  acquisition  of  such  Transfer
Restricted  Securities  or  Exchange  Notes  to be sold  by  such  Participating
Broker-Dealer,  as the case may be, that, upon actual receipt of any notice from
the  Issuers  of the  happening  of any event of the kind  described  in Section
5(c)(ii),  5(c)(iv),  5(c)(v),  or 5(c)(vi)  hereof,  such Holder will forthwith
discontinue  disposition of such Transfer Restricted  Securities covered by such
Registration Statement or Prospectus or Exchange Notes to be sold by such Holder
or  Participating  Broker-Dealer,  as the case may be,  until such  Holder's  or
Participating  Broker-Dealer's  receipt  of the  copies of the  supplemented  or
amended  Prospectus  contemplated by Section 5(k) hereof, or until it is advised
in writing (the  "Advice") by any of the Issuers that the use of the  applicable
Prospectus  may be  resumed,  and  has  received  copies  of any  amendments  or
supplements  thereto.  In the event that the Issuers shall give any such notice,
each of the Effectiveness  Period and the Applicable Period shall be extended by


                                       22
<PAGE>

the number of days during such periods from and including the date of the giving
of such notice to and including the date when each seller of Transfer Restricted
Securities  covered by such Registration  Statement or Exchange Notes to be sold
by such Participating Broker-Dealer, as the case may be, shall have received (x)
the copies of the  supplemented  or amended  Prospectus  contemplated by Section
5(k) hereof or (y) the Advice.

6.       Registration Expenses

                  All  fees  and  expenses  incident  to the  performance  of or
compliance  with this  Agreement  by the Issuers  shall be borne by the Issuers,
jointly and severally,  whether or not the Exchange Offer Registration Statement
or any Shelf Registration is filed or becomes effective or the Exchange Offer is
consummated, including, without limitation, (i) all registration and filing fees
(including,  without limitation, (A) fees with respect to filings required to be
made with the NASD in connection with an underwritten  offering and (B) fees and
expenses  of  compliance  with  state  securities  or Blue Sky laws  (including,
without  limitation,  reasonable fees and disbursements of counsel in connection
with Blue Sky qualifications of the Transfer  Restricted  Securities or Exchange
Notes and determination of the eligibility of the Transfer Restricted Securities
or Exchange Notes for investment under the laws of such  jurisdictions (x) where
the holders of Transfer  Restricted  Securities are located,  in the case of the
Exchange  Notes,  or (y) as  provided  in Section  5(h)  hereof,  in the case of
Transfer  Restricted  Securities or Exchange Notes to be sold by a Participating
Broker-Dealer during the Applicable Period)), (ii) printing expenses, including,
without  limitation,  expenses of printing  certificates for Transfer Restricted
Securities or Exchange  Notes in a form eligible for deposit with The Depository
Trust Company and of printing  prospectuses  if the printing of  prospectuses is
requested by the managing underwriter or underwriters, if any, by the Holders of
a majority in aggregate principal amount of the Transfer  Restricted  Securities
included in any  Registration  Statement  or in respect of  Transfer  Restricted
Securities  or  Exchange  Notes  to be sold by any  Participating  Broker-Dealer
during the Applicable Period, as the case may be, (iii) messenger, telephone and
delivery  expenses,  (iv) fees and  disbursements of counsel for the Issuers and
reasonable fees and  disbursements of one special counsel for all of the sellers
of Transfer Restricted Securities (exclusive of any counsel retained pursuant to
Section 7  hereof),  (v) fees and  disbursements  of all  independent  certified
public accountants  referred to in Section 5(m)(iii) hereof (including,  without
limitation,  the  expenses  of any  special  audit  and "cold  comfort"  letters
required by or incident to such  performance),  (vi)  Securities  Act  liability
insurance, if the Issuers desire such insurance,  (vii) fees and expenses of all
other Persons  retained by any of the Issuers,  (viii) internal  expenses of the
Issuers (including,  without  limitation,  all salaries and expenses of officers
and employees of all of the Issuers performing legal or accounting duties), (ix)
the  expense  of any  annual  audit,  (x) the  fees  and  expenses  incurred  in


                                       23
<PAGE>

connection with the listing of the securities to be registered on any securities
exchange,  and the  obtaining of a rating of the  securities,  in each case,  if
applicable,  and (xi) the expenses  relating to printing,  word  processing  and
distributing all Registration Statements,  underwriting  agreements,  indentures
and any other documents necessary in order to comply with this Agreement.

7.       Indemnification

                  (a) The Issuers and any Subsidiary  Guarantors agree,  jointly
and severally, to indemnify and hold harmless each Holder of Transfer Restricted
Securities and each  Participating  Broker-Dealer  selling Exchange Notes during
the Applicable  Period,  the officers,  directors,  employees and agents of each
such Person,  and each Person,  if any, who controls any such Person  within the
meaning of either Section 15 of the Securities Act or Section 20 of the Exchange
Act (each,  a  "Participant"),  from and  against  any and all  losses,  claims,
damages, judgments, liabilities and expenses (including, without limitation, the
reasonable  legal fees and other expenses  actually  incurred in connection with
any suit,  action or proceeding or any claim asserted) caused by, arising out of
or based upon any untrue  statement  or alleged  untrue  statement of a material
fact  contained in any  Registration  Statement  (or any  amendment  thereto) or
Prospectus  (as  amended  or  supplemented  if  any of the  Issuers  shall  have
furnished any amendments or supplements thereto) or any preliminary  prospectus,
or caused by,  arising out of or based upon any omission or alleged  omission to
state therein a material fact required to be stated therein or necessary to make
the  statements  therein,  in  the  case  of  the  Prospectus  in  light  of the
circumstances under which they were made, not misleading, except insofar as such
losses,  claims,  damages or liabilities  are caused by any untrue  statement or
omission or alleged  untrue  statement or omission  made in reliance upon and in
conformity with information relating to any Participant furnished to the Issuers
in writing by such  Participant  expressly for use therein;  provided,  however,
that the  Issuers  will not be liable if such  untrue  statement  or omission or
alleged  untrue  statement or omission was contained or made in any  preliminary
prospectus and corrected in the final  Prospectus or any amendment or supplement
thereto and any such loss,  liability,  claim, or damage or expense  suffered or
incurred by the  Participants  resulted  from any  action,  claim or suit by any
Person who purchased Transfer Restricted  Securities or Exchange Notes which are
the subject  thereof from such  Participant and it is established in the related
proceeding  that such  Participant  failed to  deliver  or provide a copy of the
final  Prospectus (as amended or  supplemented)  to such Person with or prior to
the confirmation of the sale of such Transfer Restricted  Securities or Exchange
Notes sold to such Person if required by applicable law.

                  (b) Each  Participant  agrees,  severally and not jointly,  to
indemnify  and hold harmless each of the Issuers,  their  respective  directors,
their respective  officers who sign the  Registration  Statement and each Person


                                       24
<PAGE>

who controls each Issuer within the meaning of Section 15 of the  Securities Act
or Section 20 of the Exchange Act to the same extent (but on a several,  and not
joint,  basis) as the foregoing  indemnity from the Issuers to each Participant,
but only with reference to information relating to such Participant furnished to
the Issuers in writing by such Participant expressly for use in any Registration
Statement or Prospectus, any amendment or supplement thereto, or any preliminary
prospectus.  The liability of any  Participant  under this paragraph shall in no
event exceed the proceeds  received by such  Participant  from sales of Transfer
Restricted Securities or Exchange Notes giving rise to such obligations.

                  (c)  If  any   suit,   action,   proceeding   (including   any
governmental or regulatory  investigation),  claim or demand shall be brought or
asserted against any Person in respect of which indemnity may be sought pursuant
to  either  of the two  preceding  paragraphs,  such  Person  (the  "Indemnified
Person")  shall promptly  notify the Persons  against whom such indemnity may be
sought (the "Indemnifying  Persons") in writing,  and the Indemnifying  Persons,
upon  request  of  the  Indemnified  Person,  shall  retain  counsel  reasonably
satisfactory to the Indemnified  Person to represent the Indemnified  Person and
any others the Indemnifying  Persons may reasonably designate in such proceeding
and shall pay the fees and expenses actually incurred by such counsel related to
such  proceeding;   provided,  however,  that  the  failure  to  so  notify  the
Indemnifying  Persons  shall  not  relieve  any of  them  of any  obligation  or
liability  which  any of them  may  have  hereunder  or  otherwise.  In any such
proceeding,  any  Indemnified  Person  shall  have the right to  retain  its own
counsel,  but the fees and expenses of such  counsel  shall be at the expense of
such Indemnified Person unless (i) the Indemnifying  Persons and the Indemnified
Person shall have mutually agreed to the contrary, (ii) the Indemnifying Persons
shall  have  failed  within  a  reasonable  period  of  time to  retain  counsel
reasonably  satisfactory to the Indemnified Person or (iii) the named parties in
any  such  proceeding   (including  any  impleaded  parties)  include  both  any
Indemnifying  Person and the  Indemnified  Person or any  affiliate  thereof and
representation of both parties by the same counsel would be inappropriate due to
actual or potential  differing  interests  between them. It is understood  that,
unless there  exists a conflict  among  Indemnified  Persons,  the  Indemnifying
Persons  shall  not,  in  connection   with  such  proceeding  or  separate  but
substantially similar related proceeding in the same jurisdiction arising out of
the same general  allegations,  be liable for the fees and expenses of more than
one  separate  firm (in  addition  to any  local  counsel)  for all  Indemnified
Persons,  and that all such fees and expenses  shall be  reimbursed  promptly as
they are incurred.  Any such separate firm for the Participants and such control
Persons of Participants  shall be designated in writing by Participants who sold
a majority in interest of Transfer Restricted Securities and Exchange Notes sold
by all such  Participants and shall be reasonably  acceptable to the Issuers and
any such  separate  firm for the  Issuers,  their  respective  directors,  their


                                       25
<PAGE>

respective  officers and such control Persons of the Issuers shall be designated
in writing by the Issuers and shall be reasonably acceptable to the Holders.

                  The   Indemnifying   Persons  shall  not  be  liable  for  any
settlement of any proceeding  effected  without its prior written consent (which
consent shall not be unreasonably withheld or delayed), but if settled with such
consent or if there be a final  non-appealable  judgment for the  plaintiff  for
which the  Indemnified  Person is entitled to  indemnification  pursuant to this
Agreement,  each of the  Indemnifying  Persons  agrees  to  indemnify  and  hold
harmless  each  Indemnified  Person from and against  any loss or  liability  by
reason of such settlement or judgment. No Indemnifying Person shall, without the
prior written  consent of the  Indemnified  Persons  (which consent shall not be
unreasonably  withheld or delayed),  effect any  settlement or compromise of any
pending or threatened  proceeding in respect of which any Indemnified  Person is
or could have been a party,  or  indemnity  could have been sought  hereunder by
such  Indemnified  Person,  unless such settlement (A) includes an unconditional
written release of such  Indemnified  Person,  in form and substance  reasonably
satisfactory to such Indemnified  Person,  from all liability on claims that are
the subject matter of such  proceeding and (B) does not include any statement as
to an admission of fault,  culpability or failure to act by or on behalf of such
Indemnified Person.

                  (d) If the  indemnification  provided  for  in the  first  and
second  paragraphs  of this  Section  7 is for any  reason  unavailable  to,  or
insufficient to hold harmless,  an Indemnified  Person in respect of any losses,
claims,  damages or  liabilities  referred  to therein,  then each  Indemnifying
Person under such paragraphs,  in lieu of indemnifying  such Indemnified  Person
thereunder  and in order to provide for just and equitable  contribution,  shall
contribute to the amount paid or payable by such Indemnified  Person as a result
of  such  losses,  claims,  damages  or  liabilities  in such  proportion  as is
appropriate to reflect (i) the relative  benefits  received by the  Indemnifying
Person or Persons on the one hand and the  Indemnified  Person or Persons on the
other from the offering of the Notes or (ii) if the  allocation  provided by the
foregoing  clause (i) is not permitted by applicable law, not only such relative
benefits but also the relative  fault of the  Indemnifying  Person or Persons on
the one hand and the  Indemnified  Person or Persons on the other in  connection
with the  statements  or  omissions  or alleged  statements  or  omissions  that
resulted in such losses,  claims,  damages or liabilities (or actions in respect
thereof) as well as any other relevant  equitable  considerations.  The relative
benefits  received  by the Issuers on the one hand and the  Participants  on the
other shall be deemed to be in the same  proportion  as the total  proceeds from
the offering (net of discounts and commissions but before deducting expenses) of
the Notes received by the Issuers bears to the total  proceeds  received by such
Participant from the sale of Transfer  Restricted  Securities or Exchange Notes,
as the case may be, in each case as set forth in the table on the cover  page of
the Offering  Memorandum in respect of the sale of the Notes. The relative fault
of the parties shall be determined by reference to, among other things,  whether


                                       26
<PAGE>

the untrue or alleged  untrue  statement  of a material  fact or the omission or
alleged omission to state a material fact relates to information supplied by the
Issuers on the one hand or such Participant or such other Indemified  Person, as
the case may be, on the other, the parties' relative intent,  knowledge,  access
to information and opportunity to correct or prevent such statement or omission,
and any other equitable considerations appropriate in the circumstances.

                  (e) The parties  agree that it would not be just and equitable
if  contribution  pursuant  to  this  Section  7 were  determined  by  pro  rata
allocation  (even  if the  Participants  were  treated  as one  entity  for such
purpose) or by any other method of allocation  that does not take account of the
equitable considerations referred to in the immediately preceding paragraph. The
amount  paid or  payable  by an  Indemnified  Person as a result of the  losses,
claims,  damages,  judgments,  liabilities  and  expenses  referred  to  in  the
immediately  preceding  paragraph  shall be deemed to  include,  subject  to the
limitations  set forth above,  any reasonable  legal or other expenses  actually
incurred  by  such  Indemnified  Person  in  connection  with  investigating  or
defending  any such  action or claim.  Notwithstanding  the  provisions  of this
Section 7, in no event shall a Participant  be required to contribute any amount
in excess of the amount by which  proceeds  received  by such  Participant  from
sales of Transfer  Restricted  Securities or Exchange Notes, as the case may be,
exceeds the amount of any  damages  that such  Participant  has  otherwise  been
required to pay or has paid by reason of such untrue or alleged untrue statement
or   omission   or   alleged   omission.   No  Person   guilty   of   fraudulent
misrepresentation  (within the meaning of Section 11(f) of the  Securities  Act)
shall be  entitled  to  contribution  from any Person who was not guilty of such
fraudulent misrepresentation.

                  (f) Any losses, claims,  damages,  liabilities or expenses for
which an indemnified party is entitled to  indemnification or contribution under
this Section 7 shall be paid by the Indemnifying  Party to the Indemnified Party
as such losses,  claims,  damages,  liabilities  or expenses are  incurred.  The
indemnity  and  contribution  agreements  contained  in this  Section  7 and the
representations  and warranties of the Issuers set forth in this Agreement shall
remain  operative  and  in  full  force  and  effect,   regardless  of  (i)  any
investigation  made by or on behalf of any Holder or any  person who  controls a
Holder, any Issuer, their respective directors, officers, employees or agents or
any person controlling any Issuer, and (ii) any termination of this Agreement.

                  (g) The indemnity  and  contribution  agreements  contained in
this  Section 7 will be in  addition  to any  liability  which the  Indemnifying
Persons may otherwise have to the Indemnified Persons referred to above.

8.       Rules 144 and 144A

                                       27
<PAGE>

                  The Issuers covenant and agree that each of them will file the
reports  required to be filed by each of them under the  Securities  Act and the
Exchange Act and the rules and  regulations  adopted by the SEC  thereunder in a
timely manner in accordance with the  requirements of the Securities Act and the
Exchange Act and, if at any time any of the Issuers is not required to file such
reports, such Issuer will, upon the request of any Holder or beneficial owner of
Transfer  Restricted  Securities,  make available such information  necessary to
permit sales pursuant to Rule 144A under the Securities Act. The Issuers further
covenant and agree,  for so long as any Transfer  Restricted  Securities  remain
outstanding  that each of them will take such  further  action as any  Holder of
Transfer  Restricted  Securities  may  reasonably  request,  all to  the  extent
required  from time to time to enable  such holder to sell  Transfer  Restricted
Securities  without  registration under the Securities Act within the limitation
of the exemptions provided by (a) Rule 144(k) and Rule 144A under the Securities
Act, as such Rules may be amended from time to time,  or (b) any similar rule or
regulation hereafter adopted by the SEC. 9. Underwritten Registrations

                  If any of the Transfer  Restricted  Securities  covered by any
Shelf  Registration are to be sold in an underwritten  offering,  the investment
banker or  investment  bankers  and  manager or  managers  that will  manage the
offering  will be selected by the Holders of a majority in  aggregate  principal
amount of such  Transfer  Restricted  Securities  included in such  offering and
shall be reasonably acceptable to the Issuers.

                  No Holder of Transfer Restricted Securities may participate in
any  underwritten  registration  hereunder unless such Holder (a) agrees to sell
such  Holder's  Transfer  Restricted  Securities  on the basis  provided  in any
underwriting  arrangements approved by the Persons entitled hereunder to approve
such arrangements and (b) completes and executes all  questionnaires,  powers of
attorney,  indemnities,  underwriting  agreements and other  documents  required
under the terms of such underwriting arrangements.

10.      Miscellaneous

                  (a) No Inconsistent Agreements. None of the Issuers has, as of
the  date  hereof,  and  none  of the  Issuers  shall,  after  the  date of this
Agreement,  enter into any agreement with respect to any of its securities  that
is  inconsistent  with the rights granted to the Holders of Transfer  Restricted
Securities in this Agreement or otherwise  conflicts with the provisions hereof.
The rights granted to the Holders  hereunder do not in any way conflict with and
are not  inconsistent  with the  rights  granted  to the  holders  of any of the
Issuers'  other issued and  outstanding  securities  under any such  agreements.
Except as otherwise disclosed to the Initial Purchaser,  none of the Issuers has


                                       28
<PAGE>

entered  and none will  enter  into any  agreement  with  respect  to any of its
securities which will grant to any Person  piggy-back  registration  rights with
respect to any Registration Statement.

                  (b) Adjustments Affecting Transfer Restricted Securities. None
of the Issuers shall,  directly or  indirectly,  take any action with respect to
the Transfer  Restricted  Securities as a class that would adversely  affect the
ability of the  Holders  of  Transfer  Restricted  Securities  to  include  such
Transfer  Restricted  Securities in a registration  undertaken  pursuant to this
Agreement.

                  (c) Amendments  and Waivers.  The provisions of this Agreement
may not be  amended,  modified  or  supplemented,  and  waivers or  consents  to
departures from the provisions hereof may not be given,  otherwise than with the
prior written consent of (I) the Issuers and the Subsidiary Guarantors,  if any,
and  (II)(A)  the  Holders of not less than a majority  in  aggregate  principal
amount  of the  then  outstanding  Transfer  Restricted  Securities  and  (B) in
circumstances that would adversely affect the Participating Broker-Dealers,  the
Participating  Broker-Dealers  holding  not less than a  majority  in  aggregate
principal amount of the Exchange Notes held by all Participating Broker-Dealers;
provided,  however,  that Section 7 and this  Section  10(c) may not be amended,
modified or  supplemented  without the prior written  consent of each Holder and
each  Participating  Broker-Dealer  (including  any  person  who was a Holder or
Participating Broker-Dealer of Transfer Restricted Securities or Exchange Notes,
as the case may be, disposed of pursuant to any Registration Statement) affected
by  any  such  amendment,   modification  or  supplement.   Notwithstanding  the
foregoing, a waiver or consent to depart from the provisions hereof with respect
to a matter  that  relates  exclusively  to the rights of  Holders  of  Transfer
Restricted Securities whose securities are being sold pursuant to a Registration
Statement  and that does not directly or  indirectly  affect,  impair,  limit or
compromise the rights of other Holders of Transfer Restricted  Securities may be
given by Holders of at least a majority  in  aggregate  principal  amount of the
Transfer  Restricted   Securities  being  sold  pursuant  to  such  Registration
Statement.

                  (d) Notices. All notices and other communications  (including,
without limitation, any notices or other communications to the Trustee) provided
for or permitted hereunder shall be made in writing by hand-delivery, registered
first-class mail, next-day air courier or facsimile:

                    (i) if to a Holder of the Transfer Restricted  Securities or
         any  Participating  Broker-Dealer,  at the most current address of such
         Holder or Participating Broker-Dealer, as the case may be, set forth on
         the records of the registrar under the Indenture.

                                       29
<PAGE>

                   (ii) if to either  of the  Issuers  or any of the  Subsidiary
Guarantors, at the address as follows:

                           c/o Abraxas Petroleum Corporation
                           500 N. Loop 1604 East
                           Suite 100
                           San Antonio, Texas
                           Facsimile No.: (210) 490-8816
                           Attention: Chief Executive Officer

                  All such  notices and  communications  shall be deemed to have
been duly given: when delivered by hand, if personally delivered;  five business
days after being deposited in the mail, postage prepaid, if mailed; one business
day after being timely delivered to a next-day air courier;  and when receipt is
acknowledged by the addressee, if sent by facsimile.

                  Copies of all such  notices,  demands or other  communications
shall be concurrently  delivered by the Person giving the same to the Trustee at
the address and in the manner specified in such Indenture.

                  (e) Successors and Assigns.  This Agreement shall inure to the
benefit of and be binding upon the successors and assigns of each of the parties
hereto, the Holders and the Participating Broker-Dealers.

                  (f)  Release  of  Subsidiary  Guarantors.  If  any  Subsidiary
Guarantor  becomes a party to this Agreement and is  subsequently  released from
its  obligations  under the Indenture in accordance  with the terms thereof then
such Subsidiary Guarantor shall be released from its obligations hereunder.

                  (g) Counterparts. This Agreement may be executed in any number
of  counterparts  and by the parties  hereto in separate  counterparts,  each of
which when so executed  shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

                  (h)  Headings.   The  headings  in  this   Agreement  are  for
convenience  of  reference  only and  shall not limit or  otherwise  affect  the
meaning hereof.

                  (i)  Governing  Law. THIS  AGREEMENT  SHALL BE GOVERNED BY AND
CONSTRUED IN  ACCORDANCE  WITH THE LAWS OF THE STATE OF NEW YORK,  AS APPLIED TO
CONTRACTS  MADE AND  PERFORMED  ENTIRELY  WITHIN THE STATE OF NEW YORK,  WITHOUT
REGARD TO PRINCIPLES OF CONFLICTS OF LAW.

                                       30
<PAGE>

                  (j)  Severability.   If  any  term,  provision,   covenant  or
restriction of this Agreement is held by a court of competent jurisdiction to be
invalid, illegal, void or unenforceable, the remainder of the terms, provisions,
covenants  and  restrictions  set forth  herein  shall  remain in full force and
effect and shall in no way be affected, impaired or invalidated, and the parties
hereto shall use their best efforts to find and employ an  alternative  means to
achieve the same or substantially  the same result as that  contemplated by such
term, provision,  covenant or restriction.  It is hereby stipulated and declared
to be the  intention of the parties that they would have  executed the remaining
terms, provisions, covenants and restrictions without including any of such that
may be hereafter declared invalid, illegal, void or unenforceable.

                  (k)  Securities  Held  by the  Issuers  or  Their  Affiliates.
Whenever  the  consent  or  approval  of Holders of a  specified  percentage  of
Transfer  Restricted  Securities  is  required  hereunder,  Transfer  Restricted
Securities  held  by any of  the  Issuers  or  any  of  their  their  respective
affiliates (as such term is defined in Rule 405 under the Securities  Act) shall
not be counted in determining  whether such consent or approval was given by the
Holders of such required percentage.

                  (l) Third Party Beneficiaries.  Holders of Transfer Restricted
Securities   and   Participating   Broker-Dealers   are  intended   third  party
beneficiaries  of this  Agreement,  and this  Agreement  may be enforced by such
Persons.

                  (m)  Entire  Agreement.  This  Agreement,  together  with  the
Purchase Agreement and the Indenture,  is intended by the parties as a final and
exclusive  statement of the agreement and understanding of the parties hereto in
respect of the subject matter contained herein and therein and any and all prior
oral  or  written  agreements,   representations,   or  warranties,   contracts,
understandings,  correspondence, conversations and memoranda between the Holders
on the one hand and the  Issuers on the other,  or between or among any  agents,
representatives,  parents, subsidiaries, affiliates, predecessors in interest or
successors in interest with respect to the subject matter hereof and thereof are
merged herein and replaced hereby.

                  n. Information Supplied by the Participant. The statements set
forth in the last  paragraph on the front cover page,  the  paragraph  regarding
stabilization  on page ii, the second  sentence  on page 4 opposite  the caption
"Exchange Offer; Registration Rights" and in the third and fourth paragraphs and
the fourth,  fifth, sixth and seventh sentences of the fifth paragraph under the
heading  "Plan of  Distribution"  in the Final  Memorandum  (to the extent  such
statements relate to the Participant)  constitute the only information furnished
by the Participant to the Issuers for the purposes of Section 7 hereof.

                                       31
<PAGE>

                  (o)  Subsidiary  Guarantor  a  Party.   Immediately  upon  the
designation  of any  Subsidiary of either Issuer as a Restricted  Subsidiary (as
defined in the  Indenture),  the Issuers shall cause such Subsidiary to become a
party  hereto as a  Subsidiary  Guarantor by  executing  and  delivering  to the
Initial Purchaser a counterpart hereof.




                                       32
<PAGE>



                  IN WITNESS  WHEREOF,  the parties have executed this Agreement
as of the date first written above.

ABRAXAS PETROLEUM CORPORATION


By:______________________________   
Name:    Chris E. Williford                          
Title:   Executive Vice President,          
         Chief Financial Officer and Treasurer


CANADIAN ABRAXAS PETROLEUM LIMITED


By:_______________________________    
Name:    Chris E. Williford                          
Title:   Vice President                     


NEW CACHE PETROLEUMS LTD.


By:________________________________ 
Name:    Chris E. Williford                          
Title:   Assistant Secretary                         


SANDIA OIL AND GAS CORPORATION


By:________________________________         
Name:    Chris E. Williford                          
Title:   Vice President                     


JEFFERIES & COMPANY, INC.,
         as Initial Purchaser


By:________________________________      
Name:______________________________                   
Title:_____________________________                     


                                       33
<PAGE>


                  Each of the  undersigned  by its  execution  hereof  agrees to
become a party to this Agreement as a Subsidiary  Guarantor as of the date first
above written:


                                       By:________________________________
                                       Name:______________________________
                                       Title:_____________________________




                                       34
<PAGE>
                                                                   Exhibit 23.1

                         Consent of Independent Auditors



    We consent to the incorporation by reference in the Registration  Statements
(Form  S-8 No.  33-48932)  pertaining  to  Abraxas  Petroleum  Corporation  1984
Non-Qualified  Stock Option Plan; (Form S-8 No. 33-48934)  pertaining to Abraxas
Petroleum  Corporation 1984 Incentive Stock Option Plan; (Form S-8 No. 33-72268)
pertaining to the Abraxas  Petroleum  Corporation  1993 Key  Contribution  Stock
Option  Plan;  (Form  S-8 No.  33-81416)  pertaining  to the  Abraxas  Petroleum
Corporation  Restricted  Share  Plan  for  Directors;  (Form  S-8 No.  33-81418)
pertaining to Abraxas Petroleum Corporation 1994 Long Term Incentive Plan; (Form
S-8 No.  333-17375)  pertaining to the Abraxas  Petroleum  Corporation  Director
Stock  Option  Plan;  and (Form S-8 No.  333-17377)  pertaining  to the  Abraxas
Petroleum  Corporation 401 (K) Profit Sharing Plan of our report dated March 17,
1999,except  for Note 2, as to which the date is March 27, 1999 with  respect to
the consolidated  financial statements of Abraxas Petroleum Corporation included
in this Annual Report (Form 10-K) for the year ended December 31, 1998.


                                Ernst & Young LLP



San Antonio, Texas
April 9, 1999



<PAGE>
                                                                   Exhibit 23.2

                        Consent of DeGolyer & MacNaughton



    We hereby consent to the incorporation in your Annual Report on Form 10-K of
the references to DeGolyer and MacNaughton in the "Reserves Information" section
on page 19 and to the use by reference of information contained in our Appraisal
Report as of December 31, 1998 on Certain  Interests owned by Abraxas  Petroleum
Corporation provided, however, that since the crude oil, condensate, natural gas
reserves estimates,  as of December 31, 1998, set forth in this Report have been
combined  with  reserve  estimates  of  other  petroleum  consultants,   we  are
necessarily  unable to verify the accuracy of the reserves  values  contained in
the aforementioned Annual Report.

                                                      DeGolyer and MacNaughton



Dallas, Texas
April 13, 1999



<PAGE>
                                                                  Exhibit 23.3

                Consent of McDaniel & Associates Consultants LTD.


We  consent  to the  incorporation  in your  Annual  Report  on Form 10-K of the
references  to  McDaniel  &  Associates   Consultants   Ltd.  in  the  "Reserves
Information" section and to the use by reference of information contained in our
Evaluation  Report  "Canadian  Abraxas  Petroleum Ltd.,  Evaluation of Oil & Gas
Reserves, As of December 31, 1998", dated February 10, 1999


McDaniel & Associates Consultants LTD

Calgary, Alberta
April 13, 1999

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<ARTICLE>                     5
<MULTIPLIER>                                   1000
       
<S>                             <C>
<PERIOD-TYPE>                   Year
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 JAN-1-1998
<PERIOD-END>                                   Dec-30-1998
<CASH>                                         61390
<SECURITIES>                                       0
<RECEIVABLES>                                  10541
<ALLOWANCES>                                     (36)
<INVENTORY>                                      504
<CURRENT-ASSETS>                               73243
<PP&E>                                        374316
<DEPRECIATION>                               (165867)
<TOTAL-ASSETS>                                291498
<CURRENT-LIABILITIES>                          22554
<BONDS>                                       299698
                              0
                                        0
<COMMON>                                          65
<OTHER-SE>                                    (63587)
<TOTAL-LIABILITY-AND-EQUITY>                  291498
<SALES>                                        60084
<TOTAL-REVENUES>                               60084
<CGS>                                              0
<TOTAL-COSTS>                                 116584
<OTHER-EXPENSES>                                 766
<LOSS-PROVISION>                                   0
<INTEREST-EXPENSE>                             30848
<INCOME-PRETAX>                               (88114)
<INCOME-TAX>                                   (4158)
<INCOME-CONTINUING>                           (83960)
<DISCONTINUED>                                     0
<EXTRAORDINARY>                                    0
<CHANGES>                                          0
<NET-INCOME>                                  (83960)
<EPS-PRIMARY>                                 (13.26)
<EPS-DILUTED>                                 (13.26)
        

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