Exhibit 10.4


                    INTERCREDITOR AND SUBORDINATION AGREEMENT

     This Intercreditor and Subordination Agreement (this "Agreement"), dated as
of January 31, 2008 is among Societe Generale,  as administrative agent (in such
capacity,  with its successors and assigns, the "Senior  Administrative  Agent")
for the Senior Lenders (as defined below),  Societe Generale,  as administrative
agent  (in such  capacity,  the  "Subordinated  Administrative  Agent")  for the
Subordinated  Lenders (as defined below),  and Abraxas Energy Partners,  L.P., a
Delaware limited partnership (the "Borrower").

     WHEREAS,  the  Borrower,  the lenders  party thereto from time to time (the
"Senior  Lenders"),  and the  Senior  Administrative  Agent are  parties to that
certain  Credit  Agreement  dated as of January 31, 2008 (as amended,  restated,
supplemented  and  otherwise  modified  from time to time,  the  "Senior  Credit
Agreement");

     WHEREAS,  the  Borrower,  the lenders  party thereto from time to time (the
"Subordinated Lenders"),  and the Subordinated  Administrative Agent are parties
to that certain  Subordinated  Credit Agreement dated as of January 31, 2008 (as
amended,  restated,  supplemented and otherwise  modified from time to time, the
"Subordinated Credit Agreement");

     WHEREAS,  the Senior Lenders have agreed to make loans and other extensions
of credit  to the  Borrower  pursuant  to the  Senior  Credit  Agreement  on the
condition,  among others,  that the  Obligations (as such term is defined in the
Senior  Credit  Agreement)  shall be  secured  by first  priority  liens on, and
security  interests in, the assets of the Borrower and any  subsidiaries  of the
Borrower as provided therein.

     WHEREAS,  the  Subordinated  Lenders  have  agreed to make  loans and other
extensions  of  credit  to the  Borrower  pursuant  to the  Subordinated  Credit
Agreement on the condition,  among others, that the Obligations (as such term is
defined  in the  Subordinated  Credit  Agreement)  shall be  secured  by  second
priority liens on, and security interests in, the assets of the Borrower and any
subsidiaries of the Borrower as provided therein.

     WHEREAS,  each of the Senior Credit Agreement and the  Subordinated  Credit
Agreement  require,  among  other  things,  that the  parties  set forth in this
Agreement their respective rights,  obligations and remedies with respect to the
assets of the Borrower and its subsidiaries.

     NOW THEREFORE,  in  consideration of the foregoing and the mutual covenants
herein  contained and other good and valuable  consideration,  the existence and
sufficiency of which are expressly  recognized by all of the parties hereto, the
parties agree as follows:

                                   ARTICLE I
                                 Defined Terms.

     Section 1.01 Each capitalized term used in this Agreement,  but not defined
herein,  shall  have the  meaning  ascribed  to such term in the  Senior  Credit
Agreement.

                                       1


     Section 1.02 The following  terms have the following  meanings when used in
this Agreement:

     "Blockage Period" means a Non-Payment Blockage Period or a Payment Blockage
Period.

     "Eligible  Hedge  Contract"  means any  present  or future  Hedge  Contract
between  the  Borrower or any  Subsidiary  and a  counterparty  that is a Senior
Lender or an Affiliate of a Senior  Lender;  provided that if such  counterparty
ceases to be a Senior Lender under the Senior Credit  Agreement (or, in the case
of an Affiliate of a Senior Lender, the Person affiliated therewith ceases to be
a Senior Lender under the Senior Credit Agreement), such Eligible Hedge Contract
shall only cover  such  obligations  to the  extent  arising  from  transactions
entered into at the time such  counterparty  was a Senior Lender or an Affiliate
of a Senior Lender.

     "Enforcement Action" means, with respect to any Subordinated Obligations or
Senior  Indebtedness,  any  enforcement  of any  right or remedy  including  any
enforcement or foreclosure of Liens granted by the Borrower or any Subsidiary to
secure any or all of such Subordinated  Obligations or Senior Indebtedness,  any
enforcement  or  foreclosure  of Liens  on any  capital  stock  or other  equity
interests in the Borrower or any Subsidiary which may be granted by the Borrower
or its Subsidiaries or any holder of equity in the Borrower to secure any or all
of such Subordinated Obligations or Senior Indebtedness, or any other efforts to
collect  proceeds  from the  Borrower's  or any of its  Subsidiary's  assets  or
properties  (including  proceeds  of  production)  to satisfy  the  Subordinated
Obligations  or  Senior  Indebtedness,   including,   without  limitation,   the
commencement  or the  joining  with any other  creditor  of the  Borrower or any
Subsidiary in the commencement of any Insolvency Proceeding against the Borrower
or any  Subsidiary;  provided,  that none of the following  shall  constitute an
Enforcement  Action:  (a)  acceleration of any of the  Subordinated  Obligations
following  acceleration  of any of the Senior  Indebtedness  (provided that such
acceleration  of Senior  Indebtedness  has not previously been  rescinded),  (b)
acceleration of any of the Senior Indebtedness  following acceleration of any of
the   Subordinated   Obligations   (provided  that  such   acceleration  of  the
Subordinated Obligations has not previously been rescinded),  (c) actions by any
Subordinated   Lender  to  obtain   possession  of  or  receive   Reorganization
Securities,   (d)  the  sending  of  any  default  notice  by  the  Subordinated
Indebtedness  Representative or any Subordinated  Lender,  (e) the charging of a
default rate of interest by any  Subordinated  Lender,  or (f) taking any action
described above during the existence of any Insolvency Proceeding subject to the
jurisdiction of a court of competent authority.

     "Insolvency  Proceeding"  shall mean (a) any voluntary or involuntary case,
action, or proceeding before any Governmental Authority having jurisdiction over
the  applicable  Person or its assets  relating to  bankruptcy,  reorganization,
insolvency,  liquidation,  receivership,  dissolution,  winding-up, or relief of
debtors,   or  (b)  any  general   assignment  for  the  benefit  of  creditors,
composition, marshaling of assets for creditors, or other similar arrangement in
respect of its creditors  generally or any substantial portion of its creditors;
in each case whether undertaken under U.S. federal, state, or foreign law.

     "Non-Payment  Blockage  Period"  means,  with  respect  to any  Non-Payment
Default,  the period from and including the date of receipt by the  Subordinated


                                       2


Lenders or the Subordinated  Administrative  Agent or other  representative of a
Non-Payment  Default Notice relating thereto until the first to occur of (a) the
Payment in Full of Senior Indebtedness,  (b) the 179th day after receipt of such
Non-Payment  Default Notice, (c) the date on which the Non-Payment  Default that
is the subject of such Non-Payment  Default Notice has been waived in writing by
the  applicable  holder or  holders of the  Senior  Indebtedness  or an agent or
representative on their behalf,  cured, or ceased to exist, or (d) the date upon
which  the  Person(s)  giving  such   Non-Payment   Default  Notice  notify  the
Subordinated   Lenders  or  the  Subordinated   Administrative  Agent  or  other
representative  in  writing  of the  termination  of such  Non-Payment  Blockage
Period.

     "Non-Payment Default" means the occurrence of any Borrowing Base Deficiency
(as defined in the Senior  Credit  Agreement) or any event under any Senior Loan
Document  evidencing  Senior  Indebtedness,  not constituting a Payment Default,
which  gives  the  holder(s)  of  such  Senior  Indebtedness,  or  an  agent  or
representative  acting  on  behalf  of such  holder(s),  the  right to cause the
maturity of such Senior  Indebtedness to be accelerated  immediately without any
further   notice  (except  such  notice  as  may  be  required  to  effect  such
acceleration) or the expiration of any applicable grace period.

     "Non-Payment  Default  Notice" means a written  notice from or on behalf of
the Senior  Indebtedness  Representative that a Non-Payment Default has occurred
and is continuing  which  identifies such  Non-Payment  Default and specifically
designates such notice as a "Non-Payment Default Notice".

     "Payment  Blockage  Period" means,  with respect to any Payment  Default or
Senior  Indebtedness  Acceleration,  the period from and  including  the date of
receipt by the Subordinated Lenders or the Subordinated  Administrative Agent or
other  representative  of a Payment  Default Notice  relating  thereto until the
first to occur of (a) the  Payment in Full of Senior  Indebtedness,  (b) if such
Payment  Default  Notice  relates  to a Payment  Default,  the date on which the
Payment  Default  which is the subject of such Payment  Default  Notice has been
waived in writing by the applicable holder or holders of the Senior Indebtedness
or an agent or representative  on their behalf,  cured or ceased to exist, or if
such Payment Default Notice relates to a Senior Indebtedness  Acceleration,  the
date on which such  acceleration  is rescinded,  annulled or ceased to exist, or
(c) the day upon which the Person(s)  giving such Payment  Default Notice notify
the  Subordinated  Lenders  or the  Subordinated  Administrative  Agent or other
representative in writing of the termination of such Payment Blockage Period.

     "Payment  Default"  means (a) a default by the Borrower or any Guarantor in
the payment of any amount owing with respect to the Senior Indebtedness, whether
with respect to principal,  interest,  premium,  letter of credit  reimbursement
obligations,  hedge  obligations,  commitment  fees or letter of credit  fees or
otherwise  when the same  becomes due and  payable,  whether at maturity or at a
date fixed for payment of an  installment  or  prepayment or by  declaration  or
acceleration  or  otherwise  or (b) the  failure of the  Borrower  to deliver an
election  notice or to perform  the actions  chosen to remedy a  Borrowing  Base
Deficiency (as defined in the Senior Credit Agreement) under Section  2.05(b)(i)
of the Senior Credit Agreement.

     "Payment  Default  Notice" means a written  notice from or on behalf of the
Senior  Indebtedness  Representative  that  either  (i) a Payment  Default  with
respect to such Senior  Indebtedness  has occurred and is continuing,  or (ii) a


                                       3


Senior  Indebtedness  Acceleration with respect to such Senior  Indebtedness has
occurred  and is  continuing,  which,  in either case,  identifies  such Payment
Default  or  such  Senior   Indebtedness   Acceleration,   as  applicable,   and
specifically designates such notice as a "Payment Default Notice".

     "Payment in Full of Senior  Indebtedness" means the first date on which (a)
the Senior  Indebtedness  has been paid in cash in full, (b) all  commitments of
any holder of the Senior Indebtedness to make loans or extensions of credit have
been  terminated,  (c) all letters of credit  issued by any holder of the Senior
Indebtedness  have expired or have been terminated or cash  collateralized,  and
(d) all Hedge Contracts  between the Borrower or any of its Subsidiaries and any
Senior Lender or Affiliate of a Senior Lender have been terminated.

     "Reorganization  Securities"  means  (a) debt  securities  that are  issued
pursuant to an Insolvency  Proceeding  the payment of which is  subordinate  and
junior at least to the extent  provided in this  Agreement to the payment of the
Senior  Indebtedness  outstanding at the time of the issuance thereof (including
any refinancing of Senior Indebtedness pursuant to an Insolvency Proceeding) and
to the  payment  of all debt  securities  issued  in  exchange  for such  Senior
Indebtedness  in such  Insolvency  Proceeding  (whether  such  subordination  is
effected  by the terms of such  securities,  an order or  decree  issued in such
Insolvency  Proceeding,  by agreement of the Subordinated Lenders or otherwise),
or (b) equity  securities that are issued pursuant to an Insolvency  Proceeding;
provided,  in either case,  that such  securities  are authorized by an order or
decree made by a court of competent jurisdiction in such Insolvency Proceeding.

     "Required  Senior  Lenders" means the "Required  Lenders" as defined in the
Senior Credit Agreement.

     "Senior Indebtedness" means and includes (a) all principal indebtedness for
loans  now  outstanding  or  hereafter  incurred,   and  all  letter  of  credit
reimbursement  obligations now existing or hereafter  arising,  under the Senior
Credit Agreement,  provided that the aggregate  outstanding  principal amount of
Senior  Indebtedness under this clause (a) shall not exceed  $300,000,000 at any
time, and provided  further,  that if the aggregate  principal  amount of Senior
Indebtedness   (constituting   principal  and  letter  of  credit  reimbursement
obligations)   shall  exceed   $300,000,000,   then  the  subordination  of  the
Subordinated Notes as contemplated by this Agreement to the Senior  Indebtedness
of $300,000,000 or less shall not be impaired,  (b) all amounts now or hereafter
owing to any of the Senior Lenders or any of their Affiliates under any Eligible
Hedge Contract,  (c) all interest accruing on the Senior Indebtedness  described
in the  preceding  clauses (a) and (b), and (d) all other  monetary  obligations
(whether now  outstanding  or hereafter  incurred) for which the Borrower or any
Guarantor is responsible or liable as obligor,  guarantor or otherwise  under or
pursuant to any of the Senior Loan Documents including,  without limitation, all
fees, penalties,  yield protections,  breakage costs,  damages,  indemnification
obligations,   reimbursement  obligations,  and  expenses  (including,   without
limitation,   fees  and   expenses   of  counsel  to  the  Senior   Indebtedness
Representative  and the Senior Lenders)  together with interest on the foregoing
to the extent provided for in the Senior Loan Documents.  The interest described
in the  preceding  clause (c) and the  premiums and  penalties  described in the
preceding clause (d) include,  without  limitation,  all interest accruing after
the commencement of any Insolvency Proceeding under the terms of the Senior Loan
Documents whether or not such interest  constitutes an allowed claim in any such
Insolvency Proceeding.

                                       4


     "Senior  Indebtedness  Acceleration"  means  with,  respect  to the  Senior
Indebtedness,  that the  holder or holders of such  Senior  Indebtedness,  or an
agent or  representative  on behalf of such holder or  holders,  have caused the
maturity of such Senior Indebtedness to be accelerated.

     "Senior Credit Agreement Event of Default" means the occurrence of an Event
of Default as defined in the Senior Credit Agreement.

     "Senior  Indebtedness  Default"  means a Payment  Default or a  Non-Payment
Default.

     "Senior Indebtedness Representative" means (a) initially, Societe Generale,
as administrative agent for the Senior Lenders under the Senior Credit Agreement
or (b) such other  Person  selected  pursuant to the terms of the Senior  Credit
Agreement  to  replace  Societe   Generale  or  the  then  Senior   Indebtedness
Representative.

     "Senior Loan Documents" means the "Loan Documents" as defined in the Senior
Credit Agreement.

     "Standstill  Period" means the period  beginning with the commencement of a
Blockage  Period  and  ending on the  earliest  of (a) the date when the  Senior
Indebtedness  Default  giving  rise to such  Blockage  Period  has been cured or
waived in writing, (b) Payment in Full of Senior Indebtedness, (c) the date that
is 179 days after the commencement of a Blockage  Period,  (d) the date on which
the Senior  Indebtedness  shall have been  declared due and payable prior to its
stated maturity or any holder of Senior  Indebtedness  commences  proceedings to
collect  any  Senior  Indebtedness  or  realize  upon any  material  part of the
collateral  for any  Senior  Indebtedness,  and  (e) the  date  upon  which  any
Insolvency Proceeding is commenced.

     "Subordinated Credit Agreement Event of Default" means the occurrence of an
Event of Default as defined in the Subordinated Credit Agreement.

     "Subordinated  Indebtedness  Representative"  means (a) initially,  Societe
Generale,  as  administrative  agent  for the  Subordinated  Lenders  under  the
Subordinated  Credit Agreement or (b) such other Person selected pursuant to the
terms of the  Subordinated  Credit  Agreement to replace Societe Generale or the
then Subordinated Indebtedness Representative.

     "Subordinated  Loan Documents" means the "Loan Documents" as defined in the
Subordinated Credit Agreement.

     "Subordinated  Notes"  means the  "Notes" as  defined  in the  Subordinated
Credit Agreement.

     "Subordinated  Obligations" means the "Obligations" as such term is defined
in the Subordinated Credit Agreement (other than obligations owing in respect of
any Eligible Hedge Contract with a Subordinated  Lender or an Affiliate  thereof
that is also a Senior Lender or an Affiliate  thereof,  which  obligations shall
constitute "Senior Indebtedness").

                                       5


ARTICLE II
                                  Subordination

     Section 2.01 Subordination of Obligations. The Borrower and each Subsidiary
covenant  and  agree,  and  each  Subordinated  Lender  by its  acceptance  of a
Subordinated  Note  covenants and agrees,  that the payment of the  Subordinated
Obligations shall, to the extent set forth in this Agreement, be subordinate and
junior and  subject in right of payment to the prior  payment in full in cash of
all Senior  Indebtedness,  whether  outstanding  on the date hereof or hereafter
created,  incurred,  assumed  or  guaranteed.  Notwithstanding  anything  to the
contrary  set  forth  in  this  Agreement,   the  Borrower  may  make  and  each
Subordinated Lender may accept payments,  scheduled or otherwise,  in respect of
the  Subordinated  Obligations so long as (a) no Payment Blockage Period exists,
(b) no Non-Payment  Blockage Period exists, (c) no Standstill Period exists, (d)
no  Default  (as  defined  in the  Senior  Credit  Agreement)  or Senior  Credit
Agreement  Event of Default  exists,  and (e) no Borrowing  Base  Deficiency (as
defined in the Senior Credit  Agreement)  exists;  provided,  however,  that the
existence of any Non-Payment  Default or a Standstill  Period resulting from any
Non-Payment  Default,  shall  not  prevent  or  prohibit  the  Borrower  or  any
Subsidiary from paying or prepaying the  Subordinated  Obligations in full or in
part prior to the repayment or prepayment of any Senior  Indebtedness so long as
(y) any Borrowing  Base  Deficiency is cured prior to such payment or prepayment
and (z) such payment or prepayment of the Subordinated Obligations is made using
Equity  Issuance  Proceeds to the extent  permitted under Section 2.05(b) of the
Senior Credit Agreement.

     Section 2.02 Payment Default or  Acceleration.  Except under  circumstances
when the  terms of  Section  2.05 of this  Agreement  are  applicable,  if (a) a
Payment Default or Senior  Indebtedness  Acceleration shall have occurred and be
continuing and (b) the  Subordinated  Lenders or the  Subordinated  Indebtedness
Representative  shall have received a Payment Default  Notice,  then neither the
Borrower nor any Subsidiary may make, and no  Subordinated  Lender shall accept,
receive or collect,  any direct or indirect  payment or distribution of any kind
or character (in cash, securities, other Property, by setoff, or otherwise other
than  Reorganization  Securities) of any properties or assets of the Borrower or
any  Subsidiary on account of the  Subordinated  Obligations  during the Payment
Blockage  Period;  provided,  however,  that in the case of any payment on or in
respect of any  Subordinated  Obligation  that would (in the absence of any such
Payment  Default  Notice)  have been due and  payable on any date (a  "Scheduled
Payment Date") during such Payment  Blockage Period pursuant to the terms of the
Subordinated Notes as in effect on the date hereof or as amended consistent with
the provisions of Section 2.12 of this Agreement, the provisions of this Section
2.02 shall not prevent the making and  acceptance  of such payment (a "Scheduled
Payment"),  together  with  any  additional  default  interest  as is due on the
Subordinated  Notes, on or after the date immediately  following the termination
of  such  Payment  Blockage  Period.  In the  event  that,  notwithstanding  the
foregoing,  either the  Borrower  or any  Subsidiary  shall make any  payment or
distribution to any Subordinated  Lender prohibited by the foregoing  provisions
of this Section 2.02, then and in such event such payment or distribution  shall
be held in trust for the  benefit of and  immediately  shall be paid over to the
holders of the Senior Indebtedness or the Senior Indebtedness Representative for
application against the Senior  Indebtedness  remaining unpaid until such Senior
Indebtedness is paid in full in cash. Any Payment Default Notice shall be deemed


                                       6


received  by the  Subordinated  Lenders  upon the date of actual  receipt by the
Subordinated  Lenders or the Subordinated  Indebtedness  Representative  of such
Payment Default Notice in writing.

     Section 2.03 Non-Payment Default. Except under circumstances when the terms
of Section  2.02 or Section  2.05 of this  Agreement  are  applicable,  if (a) a
Non-Payment Default shall have occurred and be continuing,  (b) the Subordinated
Lenders or the Subordinated  Indebtedness  Representative  shall have received a
Non-Payment  Default  Notice,  and (c) no Non-Payment  Default Notice shall have
been given within the 360-day  period  immediately  preceding the giving of such
Non-Payment  Default  Notice,  then neither the Borrower nor any  Subsidiary may
make, and no Subordinated Lender shall accept, receive or collect, any direct or
indirect payment or distribution of any kind or character (in cash,  securities,
other Property, by setoff, or otherwise other than Reorganization Securities) of
any  properties  or assets of the Borrower or any  Subsidiary  on account of the
Subordinated  Obligations  during the  Non-Payment  Blockage  Period;  provided,
however,  that in the case of any  Scheduled  Payment  on or in  respect  of any
Subordinated  Obligation  that  would (in the  absence  of any such  Non-Payment
Default  Notice) have been due and payable on any Scheduled  Payment Date during
such Non-Payment Blockage Period pursuant to the terms of the Subordinated Notes
as in effect on the date hereof or as amended  consistent with the  requirements
of Section 2.12 of this Agreement, the provisions of this Section 2.03 shall not
prevent the making and acceptance of such Scheduled  Payment,  together with any
additional default interest as is due on the Subordinated Notes, on or after the
date immediately  following the termination of such Non-Payment Blockage Period.
In the event that, notwithstanding the foregoing, the Borrower or any Subsidiary
shall make any payment or distribution to any Subordinated  Lender prohibited by
the  foregoing  provisions  of this  Section  2.03,  then and in such event such
payment  or  distribution  shall  be  held  in  trust  for  the  benefit  of and
immediately shall be paid over to the holders of the Senior  Indebtedness or the
Senior   Indebtedness   Representative   for  application   against  the  Senior
Indebtedness  remaining unpaid until such Senior Indebtedness is paid in full in
cash.  Any   Non-Payment   Default  Notice  shall  be  deemed  received  by  the
Subordinated Lenders upon the date of actual receipt by the Subordinated Lenders
or the Subordinated  Indebtedness  Representative  of such  Non-Payment  Default
Notice in writing.

     Section 2.04 Standstill. At any time that a Standstill Period is in effect,
the Subordinated Lenders and the Subordinated Indebtedness Representative or any
other   representative  of  the  Subordinated  Lenders  will  not  commence  any
Enforcement  Action  relative  to the  Borrower  or  any  Subsidiary.  Upon  the
termination of the Standstill Period, the Subordinated  Lenders may exercise all
rights or remedies they may have in law or equity; provided,  however, that if a
Standstill Period terminates  pursuant to clause (e) of the definition  thereof,
no Subordinated Lender and no agent or representative thereof shall exercise any
remedies against,  or attempt to foreclose upon,  garnish,  sequester or execute
upon,  any  Property  known  to it as  constituting  collateral  for the  Senior
Indebtedness  (other  than to file or  record  any  judgment  Liens  it may have
obtained against such collateral)  during the period that such Standstill Period
would  have been in effect  but for  termination  pursuant  to clause (e) of the
definition of "Standstill  Period;" provided further,  that the Payment Blockage
Period  or the  Non-Payment  Blockage  Period,  as the case may be,  if not also
terminated,  shall continue for its full period  notwithstanding the termination
of the Standstill Period.  Notwithstanding  the foregoing,  no Standstill Period
may be commenced  while any other  Standstill  Period  exists or within 180 days


                                       7


following the  termination of any prior  Standstill  Period  (provided that this
sentence shall not relieve any Subordinated  Lender of its obligation to provide
notice under Section 2.09 of this Agreement).

     Section 2.05 Insolvency;  Bankruptcy;  Etc. In the event of the institution
of any Insolvency Proceeding relative to the Borrower or any Subsidiary, then:

         (a) The holders of the Senior Indebtedness shall be entitled to receive
payment  in full in cash of the  Senior  Indebtedness  before  the  Subordinated
Lenders are entitled to receive any direct or indirect  payment or  distribution
of any kind or character,  whether in cash,  Property or securities  (other than
Reorganization Securities) on account of the Subordinated Obligations.

         (b) Any  direct or  indirect  payment  or  distribution  of any kind or
character,  whether in cash,  Property or  securities,  by setoff or  otherwise,
which may be  payable  or  deliverable  in such  proceedings  in  respect of the
Subordinated  Obligations but for the provisions of this Agreement shall be paid
or delivered  by the Person  making such  payment or  distribution,  whether the
Borrower, a Subsidiary of the Borrower,  a trustee in bankruptcy,  a receiver, a
liquidating  trustee,  or  otherwise,  directly  to the  holders  of the  Senior
Indebtedness or the Senior Indebtedness Representative,  to the extent necessary
to make  payment in full in cash of all Senior  Indebtedness  remaining  unpaid;
provided,  however,  that no delivery of any Reorganization  Securities shall be
made  to  any   holders  of  the  Senior   Indebtedness.   In  the  event  that,
notwithstanding the foregoing  provisions of this Section 2.05, any Subordinated
Lender  shall have  received  any such  payment or  distribution  of any kind or
character,  whether in cash,  Property or securities (other than  Reorganization
Securities),  by setoff or otherwise,  before all Senior Indebtedness is paid in
full in cash,  which is to be paid to the  holders  of the  Senior  Indebtedness
under the foregoing provisions of this Section 2.05, then and in such event such
payment  or  distribution  shall  be  held  in  trust  for  the  benefit  of and
immediately shall be paid over to the holders of the Senior  Indebtedness or the
Senior Indebtedness  Representative for application to the payment of all Senior
Indebtedness remaining unpaid until all such Senior Indebtedness shall have been
paid in full in cash.

         (c) If no proof of claim  is filed in any  Insolvency  Proceeding  with
respect to any  Subordinated  Obligations by the tenth day prior to the bar date
for any such proof of claim, the Senior  Indebtedness  Representative may, after
notice to the Subordinated  Lenders or the Subordinated  Administrative Agent or
other  representative,  file such a proof of claim on behalf of the Subordinated
Lenders,  and each Subordinated  Lender hereby  irrevocably  appoints the Senior
Indebtedness  Representative as its agent and  attorney-in-fact for such limited
purpose;  provided,  that the  foregoing  shall not  confer to the holder of any
Senior  Indebtedness the right to vote on behalf of the Subordinated  Lenders in
any  Insolvency  Proceedings.   The  Senior  Indebtedness  Representative  shall
promptly deliver to the Subordinated  Indebtedness  Representative a copy of any
proof of claim filed by it pursuant  to this  Section,  but there shall no be no
liability for failure to deliver such copy.

     Section  2.06 No  Impairment.  No right of any present or future  holder of
Senior  Indebtedness  to enforce  subordination  as herein provided shall at any
time in any way be  prejudiced  or  impaired by any act or failure to act on the
part of the Borrower or any Subsidiary or by any  non-compliance by the Borrower
or any Subsidiary with the terms,  provisions,  and covenants of this Agreement,


                                       8


the Subordinated Credit Agreement or the Subordinated  Notes,  regardless of any
knowledge thereof any such Subordinated  Lender may have or be otherwise charged
with.  The provisions of this  Agreement  shall be  enforceable  directly by any
present  or  future  holder  of  the  Senior   Indebtedness  and/or  the  Senior
Indebtedness Representative.

     Section  2.07 Rights of  Creditors;  Subrogation.  The  provisions  of this
Agreement are for the purpose of defining the relative  rights of the holders of
the Senior  Indebtedness  on the one hand, and the  Subordinated  Lenders on the
other hand,  and nothing  herein shall  impair,  as between the Borrower and the
Guarantors and the Subordinated  Lenders, the obligation of the Borrower and the
Guarantors,  which are  unconditional  and absolute,  to pay to the Subordinated
Lenders the principal  thereof and interest  thereon and any other amounts owing
in accordance  with their terms and the provisions  thereof,  nor shall anything
herein, except as otherwise provided in Section 2.04 of this Agreement,  prevent
the  Subordinated  Lenders from exercising all remedies  otherwise  permitted by
applicable law or hereunder upon default under the Subordinated Credit Agreement
or under the  Subordinated  Notes (including the right to demand payment and sue
for  performance  thereof and of the  Subordinated  Notes and to accelerate  the
maturity thereof as provided by the terms of the Subordinated Notes), subject to
the rights of holders of the Senior Indebtedness under this Agreement.  Upon the
Payment in Full of Senior  Indebtedness,  the Subordinated Lenders shall, to the
extent of any payments or distributions  paid or delivered to the holders of the
Senior Indebtedness or otherwise applied to the Senior Indebtedness  pursuant to
the provisions of this Agreement,  be subrogated to the rights of the holders of
the Senior  Indebtedness to receive  payments or  distributions of assets of the
Borrower  or any  Guarantor  made  on  Senior  Indebtedness  (and  any  security
therefor)  until the  Subordinated  Obligations  shall be paid in full (and, for
this purpose, no such payments or distributions paid or delivered to the holders
of the Senior Indebtedness or otherwise applied to the Senior Indebtedness shall
be  deemed  to have  discharged  the  Subordinated  Obligations),  and,  for the
purposes  of  such  subrogation,  no  payments  to the  holders  of  the  Senior
Indebtedness  of  any  cash,   assets,   stock,  or  obligations  to  which  the
Subordinated  Lenders  would  be  entitled  except  for the  provisions  of this
Agreement  shall,  as between  the  Borrower  and the  Guarantors,  any of their
respective  creditors (other than the holders of the Senior  Indebtedness),  and
the  Subordinated  Lenders,  be deemed to be a payment  by the  Borrower  or any
Guarantor to or on account of Senior Indebtedness. The fact that failure to make
any payment on account of the  Subordinated  Obligations  is caused by reason of
the  operation  of any  provision  of this  Agreement  shall not be construed as
preventing the occurrence of a Subordinated Credit Agreement Event of Default.

     Section  2.08  Payments  on  Senior  Indebtedness.  In the  event  that any
Subordinated  Lender  determines  in good faith that  evidence is required  with
respect to (a) the right of any holder of the Senior Indebtedness to participate
in any payment or  distribution  pursuant to this Agreement or (b) the amount of
such participation,  such Subordinated Lender may request such Person to furnish
evidence to the reasonable  satisfaction of such  Subordinated  Lender as to the
amount of Senior  Indebtedness  held by such  Person,  the  extent to which such
Person is entitled to participate in such payment or distribution  and any other
facts pertinent to the rights of such Person under this  Agreement,  and if such
evidence is not  furnished,  such  Subordinated  Lender may defer any payment to
such Person  pending  judicial  determination  as to the right of such Person to
receive such payment;  provided that, upon the written request of such Person to
such  Subordinated  Lender,  such  payment  shall  be made to the  court  having
jurisdiction  over such judicial  determination  or to another  Person  mutually



                                       9


satisfactory to such Person and such  Subordinated  Lender,  as escrowee,  to be
held and invested  pending such judicial  determination  in accordance with such
instructions  as  shall  be  mutually  satisfactory  to  such  Person  and  such
Subordinated  Lender and upon such  judicial  determination  becoming  final and
non-appealable to be distributed in accordance  therewith to the Person entitled
thereto.

Section 2.09      Notice of Acceleration, Enforcement Action.

         (a) Each Subordinated  Lender agrees that in the event any Subordinated
Credit  Agreement  Event of Default shall occur,  and as a result  thereof,  any
Subordinated Lender or the Subordinated Indebtedness Representative or any other
representative  of  such  Subordinated   Lender  accelerates   maturity  of  the
Subordinated   Notes,  then  such   Subordinated   Lender  or  the  Subordinated
Indebtedness  Representative or other  representative  shall give prompt (and in
any event  within  three (3)  Business  Days)  notice  thereof in writing to the
holders of the Senior  Indebtedness or the Senior  Indebtedness  Representative.
Neither the Borrower nor any Subsidiary may pay the Subordinated Notes until ten
(10) Business  Days after the Senior  Indebtedness  Representative  receives the
notice described above and, after that ten (10) Business Day period, may pay the
Subordinated  Notes and the  Subordinated  Lenders may  receive or collect  such
payment only if the provisions of this Agreement do not prohibit such payment at
that time.

         (b) Each Subordinated  Lender agrees that in the event any Subordinated
Credit  Agreement  Event of Default shall occur,  and as a result  thereof,  any
Subordinated Lender or the Subordinated Indebtedness Representative or any other
representative of such  Subordinated  Lender intends to commence any Enforcement
Action,  then  such  Subordinated   Lender  or  the  Subordinated   Indebtedness
Representative  or other  representative  shall first deliver  notice thereof in
writing to the  Senior  Indebtedness  Representative  both (i) not less than ten
(10) days prior to taking any such Enforcement  Action and (ii) one (1) Business
Day after such Enforcement Action is taken.

         (c) Each  Senior  Lender  agrees  that in the event any  Senior  Credit
Agreement  Event of Default  shall occur,  and as a result  thereof,  any Senior
Lender or the Senior Indebtedness  Representative or any other representative of
such Senior Lender accelerates  maturity of the Senior  Indebtedness,  then such
Senior Lender or the Senior Indebtedness  Representative or other representative
shall use  reasonable  efforts to give prompt (and in any event within three (3)
Business  Days)  notice  thereof in writing to the  holders of the  Subordinated
Notes or the Subordinated  Administrative Agent, but there shall be no liability
for failure to deliver such notice.

         (d) Each  Senior  Lender  agrees  that in the event any  Senior  Credit
Agreement  Event of Default  shall occur,  and as a result  thereof,  any Senior
Lender or the Senior Indebtedness Representative or other representative of such
Senior  Lender  intends to commence  any  Enforcement  Action,  then such Senior
Lender or the Senior Indebtedness  Representative or other  representative shall
use  reasonable  efforts to give notice  thereof in writing to the  Subordinated
Administrative  Agent within one (1) Business Day after such Enforcement  Action
is taken, but there shall be no liability for failure to deliver such notice.

                                       10


     Section 2.10 Reinstatement. Subject to the provisions of this Section 2.10,
the  provisions  of this  Agreement  shall  remain in force and effect until the
termination  of this  Agreement  pursuant  to  Section  5.02.  To the extent any
payment of or distribution in respect of the Senior Indebtedness  (whether by or
on behalf of the Borrower or any of its Subsidiaries, as proceeds of security or
enforcement  of any right of set off or  otherwise) is declared to be fraudulent
or  preferential,  set  aside  or  required  to be paid to the  Borrower  or any
Subsidiary or any receiver, trustee in bankruptcy, liquidating trustee, agent or
other similar person under any bankruptcy, insolvency, receivership,  fraudulent
conveyance or similar law, then if such payment or distribution is recovered by,
or paid over to, the Borrower or any  Subsidiary  or such  receiver,  trustee in
bankruptcy,  liquidating  trustee,  agent or other  similar  Person,  the Senior
Indebtedness or part thereof originally intended to be satisfied shall be deemed
to be  reinstated  and  outstanding  as if such payment had not occurred and the
provisions of this Agreement  shall continue to be applicable in respect of said
reinstated Senior Indebtedness.

     Section 2.11 Rights of Holders of the Senior  Indebtedness.  The holders of
the Senior  Indebtedness may, at any time and from time to time,  subject to the
terms of the  Senior  Indebtedness,  without  the  consent  of or  notice to the
Subordinated  Lenders or the  Subordinated  Indebtedness  Representative  or any
other   representative   of  the   Subordinated   Lenders,   without   incurring
responsibility  to the Subordinated  Lenders and without  impairing or releasing
the   subordination  or  other  benefits  provided  in  this  Agreement  or  the
obligations  hereunder of the Subordinated  Lenders to the holders of the Senior
Indebtedness,  do any one or more of the following: (a) change the manner, place
or terms of payment or extend the time of payment  of, or renew,  increase  (but
with respect to the principal amount of the Senior  Indebtedness,  not in excess
of  the  cap  provided  for  in  clause  (a)  of  the   definition   of  "Senior
Indebtedness"), alter or amend, Senior Indebtedness or any instrument evidencing
the same or any  covenant  or  agreement  under  which  Senior  Indebtedness  is
outstanding  or secured  or any  liability  of any  obligor  thereon;  (b) sell,
exchange,  release or  otherwise  deal with any property  pledged,  mortgaged or
otherwise securing Senior  Indebtedness to the extent currently  permitted under
the terms of the Senior Credit Agreement,  but any sale,  exchange or release of
property  pledged,  mortgaged  or  otherwise  securing  Senior  Indebtedness  in
contravention  of such currently  existing  provisions can only be made with the
prior  written  consent of the  Subordinated  Indebtedness  Representative;  (c)
settle or  compromise  any Senior  Indebtedness  or any liability of any obligor
thereon or release  any  Person  liable in any manner for the  payment of Senior
Indebtedness;  and (d) waive any default under Senior  Indebtedness and exercise
or refrain from  exercising any rights  against the Borrower,  any Subsidiary or
any other Person.  The foregoing  provisions are not intended to permit a change
to the definition of "Senior Indebtedness".

     Section 2.12 Modification of Subordinated  Obligations.  The Borrower,  the
Subordinated  Administrative  Agent,  and the  Subordinated  Lenders  agree that
without the prior written consent of the Senior Indebtedness  Representative and
the Required Senior Lenders,  they will not renew,  extend,  modify or amend the
Subordinated Credit Agreement or any of the instruments or documents relating to
the Subordinated Obligations to (i) increase the maximum principal amount of the
debt to be advanced or outstanding  under the  Subordinated  Credit Agreement to
more than  $50,000,000  (other than  increases in principal  resulting  from the
capitalization  of  interest,  fees,  expenses or  indemnities),  (ii) except in
connection  with the imposition of a default rate of interest in accordance with
the terms of the Subordinated  Loan Documents and increases that require payment
of the  interest  with  respect to such  increase  only in kind and not in cash,


                                       11


securities  or other  property,  increase  the  interest  rate by more  than two
percent  (2%) per annum,  (iii)  change the  maturity  date,  (iv)  increase the
frequency or amount of  mandatory  repayments  due pursuant to the  Subordinated
Loan  Documents,  (v) increase  the  frequency of or change to be earlier in the
calendar  quarter the dates upon which payments of interest on the  Subordinated
Obligations  are due,  (vi)  change or add any event of default or any  covenant
under  or  with  respect  to the  Subordinated  Obligations,  (vii)  change  any
redemption or  prepayment  provisions of the  Subordinated  Obligations,  (viii)
subordinate  the  Subordinated  Obligations to any other  indebtedness,  or (ix)
change or amend any other term of the Subordinated Loan Documents if such change
or  amendment  would  result  in a Senior  Indebtedness  Default,  increase  the
obligations of the Borrower or any guarantor of the Subordinated Indebtedness or
confer additional  material rights on Subordinated Lender or any other holder of
the  Subordinated  Indebtedness  in a manner adverse to the Borrower unless with
respect to the  foregoing  clause (vi) such change or  amendment is necessary to
maintain the same relative position with respect to a corresponding provision of
any Senior Loan Document.

     Section 2.13 Amendments.  No amendment of this Agreement or the definitions
used in this  Agreement,  or which  would  have the  effect  of  modifying  this
Agreement or the definitions  used in this Agreement,  shall be effective unless
it is in writing and complies with Section 5.03.

     Section 2.14 Identity of Subordinated Lenders and Senior Lenders for Notice
Purposes.

         (a) For  purposes  of any  notice  required  or  permitted  to be given
hereunder by the holders of the Senior  Indebtedness or the Senior  Indebtedness
Representative to the Subordinated  Lenders,  or any of them, the holders of the
Senior Indebtedness and the Senior Indebtedness Representative shall be entitled
to rely,  conclusively,  on the identity and address of each Subordinated Lender
as set forth in the  Subordinated  Credit Agreement or as otherwise set forth in
the most recent notice received by the Senior Indebtedness Representative from a
Subordinated  Lender referring to the Subordinated Credit Agreement for purposes
of  providing  the  identity  and  address  of  each  Subordinated  Lender.  The
Subordinated  Lenders  agree  that  any  notice  required  to be  given  to  the
Subordinated  Lenders  shall  be  effective  if  such  notice  is  given  to the
Subordinated   Indebtedness   Representative  or  other  representative  of  the
Subordinated   Lenders.  For  so  long  as  the  Subordinated   Obligations  are
outstanding,  the Subordinated  Lenders agree to designate and maintain an agent
or other representative for such purposes.

         (b) For  purposes  of any  notice  required  or  permitted  to be given
hereunder by the holders of the  Subordinated  Obligations  or the  Subordinated
Administrative  Agent to the Senior Lenders,  or any of them, the holders of the
Subordinated  Obligations  and the  Subordinated  Administrative  Agent shall be
entitled  to rely,  conclusively,  on the  identity  and  address of each Senior
Lender as set forth in the Senior Credit  Agreement or as otherwise set forth in
the most recent notice received by the Subordinated  Administrative Agent from a
Senior Lender referring to the Senior Credit Agreement for purposes of providing
the identity and address of each Senior  Lender.  The Senior  Lenders agree that
any notice required to be given to the Senior Lenders shall be effective if such
notice   is  given  to  the   Senior   Indebtedness   Representative   or  other
representative of the Senior Lenders.  For so long as the Senior Indebtedness is
outstanding,  the Senior  Lenders  agree to  designate  and maintain an agent or
other representative for such purposes.

                                       12


Section 2.15      Liens.

         (a)  All  Liens  granted  by  the  Borrower,  or,  if  applicable,  any
Guarantor,  which at any time  secure the  Subordinated  Credit  Agreement,  any
Subordinated  Note or any other  Subordinated Loan Document are hereby made, and
will at all  times  prior to the  Payment  in Full of  Senior  Indebtedness  be,
subject and  subordinate  to all Liens  granted by the Borrower or any Guarantor
which at any time secure the Senior  Indebtedness,  which subordination shall be
effective  whether or not all such Liens securing Senior  Indebtedness have been
properly  recorded,  filed  and  otherwise  perfected  prior to all  such  Liens
securing any Subordinated  Note and regardless of the relative  priority of such
Liens as determined without regard to this Agreement.  The mortgages included in
the Senior Loan  Documents  do (and other  mortgages,  security  agreements  and
similar Senior Loan Documents may) describe the indebtedness  secured thereby in
a manner which might include  indebtedness  other than the Senior  Indebtedness.
For so long as any Subordinated Note is outstanding, as between the Subordinated
Lenders and the holders of the Senior Indebtedness, only the Senior Indebtedness
shall be deemed  to be  secured  by any Liens  granted  under  the  Senior  Loan
Documents.

         (b) Each Subordinated Lender agrees that it will not initiate,  join in
or prosecute any claim,  action or other proceeding  challenging the validity or
enforceability  of the  Senior  Indebtedness  or the Liens  securing  the Senior
Indebtedness.  Furthermore,  each Subordinated  Lender agrees that if the Senior
Indebtedness  Representative  shall take any Enforcement  Action  respecting any
collateral  under the Senior  Indebtedness,  the  Subordinated  Lenders will not
enjoin or otherwise interfere with such Enforcement Action.

         (c) The  Subordinated  Indebtedness  Representative  agrees to promptly
release all Liens granted by the Borrower,  or, if  applicable,  any  Guarantor,
which at any time secure the  Subordinated  Credit  Agreement,  any Subordinated
Note or any other  Subordinated  Loan  Document if such release is authorized by
the terms of the Senior Loan Documents.

Section 2.16      Legend.

         (a) Each  Subordinated  Note shall be  conspicuously  inscribed  with a
legend substantially in the form and substance as follows:

         PAYMENT  OF THIS  INSTRUMENT  SHALL,  TO THE  EXTENT SET
         FORTH IN THE INTERCREDITOR  AND SUBORDINATION  AGREEMENT
         DATED JANUARY 31, 2008 BY AND AMONG SOCIETE GENERALE, AS
         SENIOR   ADMINISTRATIVE   AGENT,  SOCIETE  GENERALE,  AS
         SUBORDINATED  ADMINISTRATIVE  AGENT AND  ABRAXAS  ENERGY
         PARTNERS,  L.P., BE  SUBORDINATE  AND JUNIOR IN RIGHT OF
         PAYMENT  TO THE  PRIOR  PAYMENT  IN FULL  OF ALL  SENIOR
         INDEBTEDNESS,   THE  PROVISIONS  OF  SUCH  INTERCREDITOR
         AGREEMENT   BEING   INCORPORATED   HEREIN  AND  BY  THIS
         REFERENCE BEING MADE A PART HEREOF.

                                       13


         (b) The  Borrower  and each  Subordinated  Lender  or the  Subordinated
Indebtedness  Representative or other representative of the Subordinated Lenders
shall cause each mortgage,  security agreement and other instrument securing all
or any part of the Subordinated Obligations to be conspicuously inscribed with a
legend substantially in the form and substance as follows:

         ALL LIENS GRANTED BY, AND THE  INDEBTEDNESS  SECURED BY,
         THIS  INSTRUMENT  SHALL,  TO THE EXTENT SET FORTH IN THE
         INTERCREDITOR  AND  SUBORDINATION  AGREEMENT JANUARY 31,
         2008  BY  AND   AMONG   SOCIETE   GENERALE,   AS  SENIOR
         ADMINISTRATIVE  AGENT, SOCIETE GENERALE, AS SUBORDINATED
         ADMINISTRATIVE AGENT AND ABRAXAS ENERGY PARTNERS,  L.P.,
         BE  SUBORDINATE  AND  JUNIOR  TO ALL  LIENS  GRANTED  BY
         GRANTOR TO SECURE THE SENIOR INDEBTEDNESS  REGARDLESS OF
         THE RELATIVE PRIORITY OF SUCH LIENS, SUCH  INTERCREDITOR
         AGREEMENT   BEING   INCORPORATED   HEREIN  AND  BY  THIS
         REFERENCE BEING MADE A PART HEREOF.

     Section 2.17 Successors and Assigns.  Each Subordinated Lender acknowledges
and agrees that the provisions of this Agreement are, and are intended to be, an
inducement  and a  consideration  to each holder of the Senior  Indebtedness  to
make, extend and continue the Senior Indebtedness, and each holder of the Senior
Indebtedness shall be deemed  conclusively to have relied upon the provisions of
this Agreement in permitting the Borrower to incur the Subordinated  Obligations
and in making, extending,  continuing and/or acquiring such Senior Indebtedness.
This  Agreement  shall  pass to and be fully  binding  upon the  successors  and
assigns  of each  Subordinated  Lender  and shall  inure to the  benefit  of the
present  and  future  holders  of  the  Senior   Indebtedness   and  the  Senior
Indebtedness   Representative  and  their  respective   successors  and  assigns
(including without limitation any Person refinancing any Senior Indebtedness).

     Section 2.18 Rights of Subordinated Lenders as Unsecured Creditors.  Except
as otherwise  provided herein,  in any Insolvency  Proceeding,  the Subordinated
Indebtedness  Representative  and the  Subordinated  Lenders may exercise  their
respective  rights and remedies as unsecured  creditors against the Borrower and
any Guarantor in accordance with the Subordinated  Loan Documents and applicable
law; provided that any payment received or judgment Lien obtained and all rights
and  remedies in respect of any such  payment or judgment  Lien  obtained by the
Subordinated  Indebtedness  Representative  or any Subordinated  Lender shall be
subject in all respects to the terms of this Agreement.

                                  ARTICLE III
                             RELIANCE; WAIVERS; ETC.

     Section 3.01  Reliance.  The Senior Loan  Documents are deemed to have been
executed and delivered,  and all  extensions of credit  thereunder are deemed to
have been made or incurred,  in reliance upon this Agreement.  The  Subordinated
Administrative  Agent  expressly  waives  all  notice of the  acceptance  of and
reliance on this Agreement by the Senior Lenders.

                                       14


     Section 3.02 No Warranties or Liability.  The  Subordinated  Administrative
Agent and the Senior Administrative Agent acknowledge and agree that neither has
made any  representation  or warranty with respect to the  execution,  validity,
legality,  completeness,  collectibility  or  enforceability  of any Senior Loan
Document.  Except as  otherwise  provided in this  Agreement,  the  Subordinated
Administrative  Agent and the Senior  Administrative  Agent will be  entitled to
manage and supervise  their  respective  extensions of credit to the Borrower in
accordance  with law and their usual  practices,  modified  from time to time as
they deem appropriate.

     Section 3.03 No Waivers.  Except as provided in Section  5.03,  no right or
benefit of any party  hereunder  shall at any time in any way be  prejudiced  or
impaired  by any act or  failure  to act on the part of such  party or any other
party hereto or by any  noncompliance by the Borrower or any of its Subsidiaries
with the terms and conditions of any of the Senior Loan Documents.

                                   ARTICLE IV
                           OBLIGATIONS UNCONDITIONAL

     Section 4.01 Senior  Indebtedness  Unconditional.  All rights of the Senior
Administrative  Agent and the Senior Lenders  hereunder,  and all agreements and
obligations  of  each of the  Subordinated  Administrative  Agent,  Subordinated
Lenders, the Borrower and the Guarantors under the Senior Loan Documents (to the
extent applicable) hereunder, shall remain in full force and effect irrespective
of:

         (a) any lack of validity or enforceability of any Senior Loan Document;

         (b) any change in the time,  place or manner of  payment  of, or in any
other term of, all or any portion of the Senior Indebtedness,  or any amendment,
waiver or other modification,  whether by course of conduct or otherwise, or any
refinancing, replacement, refunding or restatement of any Senior Loan Document;

         (c) prior to the Payment in Full of Senior Indebtedness,  and except as
provided in Section  2.11(b),  any  exchange,  release,  voiding,  avoidance  or
non-perfection  of any  security  interest in any  collateral,  or any  release,
amendment,  waiver  or other  modification,  whether  by course  of  conduct  or
otherwise, or any refinancing,  replacement,  refunding or restatement of all or
any portion of the Senior Indebtedness or any guarantee thereof; or

         (d) any other  circumstances  that otherwise might constitute a defense
available to, or a discharge of, (i) the Borrower or any Guarantor in respect of
the Senior  Indebtedness or (ii) the Subordinated  Indebtedness  Representative,
any  Subordinated  Lender,  the  Borrower  or  any  Guarantor,   to  the  extent
applicable, in respect of this Agreement.

                                   ARTICLE V
                                  MISCELLANEOUS

     Section 5.01 Conflicts. In the event of any conflict between the provisions
of  this  Agreement  and the  provisions  of any  Senior  Loan  Document  or the
Subordinated Loan Documents, the provisions of this Agreement shall govern.

                                       15


     Section 5.02 Continuing Nature of Provisions;  Termination.  This Agreement
shall continue to be effective,  and shall not be revocable by any party hereto,
until, but, subject to Section 2.10, shall automatically  terminate and be of no
further  force or effect on, the earlier to occur of (i) the date upon which the
Senior Indebtedness has been paid in full in cash, all commitments of any holder
of Senior  Indebtedness  to make loans or extensions of credit have  terminated,
and all  letters  of credit  issued by any  holder of Senior  Indebtedness  have
expired,  terminated or been fully collateralized in cash and (ii) to the extent
not in violation of this Agreement,  the date that the Subordinated  Obligations
have been paid in full.  This is a continuing  agreement and the Senior  Lenders
and the Subordinated Lenders may continue, at any time and without notice to the
other parties hereto, to extend credit and other financial accommodations,  lend
monies and  provide  indebtedness  to, or for the  benefit  of,  Borrower or any
Guarantor on the faith hereof.

     Section 5.03  Amendments;  Waivers.  No amendment or modification of any of
the provisions of this Agreement shall be effective  unless the same shall be in
writing and signed by the Senior Indebtedness  Representative,  the Subordinated
Indebtedness Representative and, only if the rights or duties of the Borrower or
any Guarantor are directly affected thereby, such Person.

     Section 5.04 Information  Concerning  Financial  Condition of the Borrower.
The Subordinated  Administrative Agent and the Senior  Administrative Agent each
hereby  assume  responsibility  for keeping  itself  informed  of the  financial
condition of the Borrower and each of the Guarantors and all other circumstances
bearing  upon  the  risk  of  nonpayment  of  the  Senior  Indebtedness  or  the
Subordinated Obligations.  The Subordinated  Administrative Agent and the Senior
Administrative  Agent  hereby  agree that no party shall have any duty to advise
any other party of information  known to it regarding such condition or any such
circumstances.  In the event the Subordinated Administrative Agent or the Senior
Administrative  Agent,  in its sole  discretion,  undertakes at any time or from
time to time to provide any information to any other party to this Agreement, it
shall be under no obligation  (1) to provide any such  information to such other
party or any  other  party on any  subsequent  occasion,  (2) to  undertake  any
investigation not a part of its regular business routine, or (3) to disclose any
other information.

     Section 5.05 Governing Law. This Agreement shall be construed in accordance
with and  governed  by the law of the  State of New York,  except  as  otherwise
required by mandatory  provisions  of law and except to the extent that remedies
provided  by the laws of any  jurisdiction  other than the State of New York are
governed by the laws of such jurisdiction.

     Section   5.06   Submission   to   Jurisdiction;   Waiver  of  Jury  Trial.

         (a) Submission to  Jurisdiction.  Each party hereto hereby  irrevocably
and unconditionally  submits,  for itself and its property,  to the nonexclusive
jurisdiction of the courts of the State of New York sitting in New York City and
of the United States  District  Court for the Southern  District of the State of
New York, and any appellate court from any thereof,  in any action or proceeding
arising out of or relating to this Agreement,  or for recognition or enforcement
of any judgment,  and each of the parties hereto irrevocably and unconditionally
agrees that all claims in respect of any such action or proceeding  may be heard
and determined in such New York State court or, to the fullest extent  permitted


                                       16


by applicable law, in such Federal court. Each of the parties hereto agrees that
a final judgment in any such action or proceeding shall be conclusive and may be
enforced in other  jurisdictions  by suit on the judgment or in any other manner
provided  by law.  Nothing  in this  Agreement  shall  affect any right that any
Senior Lender may otherwise  have to bring any action or proceeding  relating to
this  Agreement  or any  Senior  Loan  Documents  against  the  Borrower  or any
Guarantor or its properties in the courts of any jurisdiction.

         (b) The  Borrower  and the  Subordinated  Administrative  Agent  hereby
irrevocably  and  unconditionally  waive  to the  fullest  extent  permitted  by
applicable law (x) any objection they may now or hereafter have to the laying of
venue of any suit,  action or  proceeding  arising  out of or  relating  to this
Agreement in any court referred to in paragraph (a) of this Section 5.06 and (y)
the  defense  of an  inconvenient  forum to the  maintenance  of such  action or
proceeding in any such court.

         (c) Each party to this  Agreement  irrevocably  consents  to service of
process in the manner  provided  for  notices in Section  5.07.  Nothing in this
Agreement  will affect the right of any party to this Agreement to serve process
in any other manner permitted by law.

         (d) EACH PARTY HERETO HEREBY EXPRESSLY AND IRREVOCABLY  WAIVES,  TO THE
FULLEST EXTENT  PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY HAVE TO A TRIAL BY
JURY IN ANY LEGAL PROCEEDING  DIRECTLY OR INDIRECTLY  ARISING OUT OF OR RELATING
TO THIS  AGREEMENT OR THE  TRANSACTIONS  CONTEMPLATED  HEREBY  (WHETHER BASED ON
CONTRACT,  TORT OR ANY OTHER  THEORY).  EACH PARTY HERETO (i) CERTIFIES  THAT NO
REPRESENTATIVE,  AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY
OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION,  SEEK
TO ENFORCE  THE  FOREGOING  WAIVER AND (ii)  ACKNOWLEDGES  THAT IT AND THE OTHER
PARTIES  HERETO HAVE BEEN INDUCED TO ENTER INTO THIS  AGREEMENT  BY, AMONG OTHER
THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION. EACH PARTY HEREBY
AGREES AND CONSENTS THAT THIS  AGREEMENT MAY FILE AN ORIGINAL  COUNTERPART  OR A
COPY OF THIS  SECTION  WITH ANY COURT AS WRITTEN  EVIDENCE OF THE CONSENT OF THE
SIGNATORIES HERETO TO THE WAIVER OF THEIR RIGHT TO TRIAL BY JURY.

     Section 5.07 Notices.  Unless otherwise  specifically  provided herein, any
notice or other communication  herein required or permitted to be given shall be
in  writing  and may be  personally  served,  telecopied,  or sent by  overnight
express  courier  service or United States mail and shall be deemed to have been
given when delivered in person or by courier service, upon receipt of a telecopy
or five (5) days after  deposit  in the  United  States  mail  (certified,  with
postage prepaid and properly addressed).  For the purposes hereof, the addresses
of the parties hereto (until notice of a change thereof is delivered as provided
in this Section)  shall be as set forth below each party's name on the signature
pages hereof,  or, as to each party,  at such other address as may be designated
by such party in a written notice to all of the other parties.

                                       17


     Section 5.08  Successors and Assigns.  This Agreement shall be binding upon
and inure to the  benefit of each of the  parties  hereto and each of the Senior
Lenders and Subordinated  Lenders and their  respective  successors and assigns,
and nothing herein is intended,  or shall be construed to give, any other Person
any right,  remedy or claim  under,  to or in respect of this  Agreement  or any
collateral.   All  references  to  any  Person  shall  include  such  Person  as
debtor-in-possession  and  any  receiver  or  trustee  for  such  Person  in any
Insolvency Proceeding.

     Section 5.09 Headings.  Section headings used herein are for convenience of
reference  only,  are not  part of this  Agreement  and  shall  not  affect  the
construction of, or be taken into consideration in interpreting, this Agreement.

     Section  5.10  Severability.  Any  provision of this  Agreement  held to be
invalid,  illegal  or  unenforceable  in  any  jurisdiction  shall,  as to  such
jurisdiction,  be  ineffective to the extent of such  invalidity,  illegality or
unenforceability without affecting the validity,  legality and enforceability of
the remaining  provisions hereof; the invalidity of a particular  provision in a
particular  jurisdiction  shall  not  invalidate  such  provision  in any  other
jurisdiction.

     Section 5.11 Counterparts;  Integration;  Effectiveness. This Agreement may
be  executed in  counterparts  (and by  different  parties  hereto on  different
counterparts), each of which shall constitute an original, but all of which when
taken  together  shall  constitute  a single  contract.  Delivery of an executed
counterpart of a signature page of this Agreement by telecopy shall be effective
as delivery of a manually executed counterpart of this Agreement. This Agreement
shall become effective when it has been executed by each party hereto.

     Section 5.12 Consent to Incurrence of Senior Indebtedness.  Notwithstanding
any  provision  of  the  Subordinated  Loan  Documents  to  the  contrary,   the
Subordinated  Administrative Agent and each of the Subordinated Lenders consents
to the  incurrence of the Senior  Indebtedness  in amounts up to the caps on the
principal amount thereof set forth in the definition of Senior Indebtedness.

     Section 5.13 Senior  Administrative  Agent Acting as Bailee and Agent.  The
Senior  Administrative  Agent  may from  time to time,  in  order to  perfect  a
security interest in certain collateral securing the Senior  Indebtedness,  hold
possession  of stock  certificates  or  other  collateral  in  which a  security
interest can be perfected by  possession  or may enter into a control  agreement
with  respect to  collateral  in which a security  interest  can be perfected by
having control.  For purposes of perfecting the junior and  subordinate  lien of
the Subordinated  Lenders in such collateral,  the Senior  Administrative  Agent
agrees to also hold such  certificates  or other  collateral as agent and bailee
for the  Subordinated  Lenders,  subject to the  provisions  of this  Agreement.
Notwithstanding  any provision to the contrary elsewhere in this Agreement,  the
Senior  Administrative  Agent  shall not have any  duties  or  responsibilities,
except those expressly set forth herein, or any fiduciary  relationship with any
Subordinated  Lender or the  Subordinated  Administrative  Agent, and no implied
covenants, functions, responsibilities, duties, obligations or liabilities shall
be read into this Agreement or otherwise exist against the Senior Administrative
Agent.

     Section  5.14  Purchase  of Senior  Indebtedness.  The Senior  Indebtedness
Representative,  on  behalf  of  itself  and  the  Senior  Lenders  (and,  where
appropriate  with  regard to the  Eligible  Hedge  Contracts,  their  respective


                                       18


Affiliates),  and the Borrower hereby agree with the Subordinated  Lenders that,
if the Senior Indebtedness  Representative  delivers a Payment Default Notice to
the  Subordinated  Administrative  Agent or the Subordinated  Lenders,  then the
Subordinated  Lenders may (but shall not be  obligated  to)  purchase the Senior
Indebtedness  and  all  of the  rights,  titles  and  interests  of  the  Senior
Indebtedness  Representative  and the  Senior  Lenders  under  the  Senior  Loan
Documents,  by giving notice of  Subordinated  Lenders' intent to buy within ten
days after delivery of such Payment  Default Notice and  consummating  such sale
within thirty days after the delivery of such Payment Default Notice for a price
in  immediately  available  funds equal to the unpaid  principal  of and accrued
interest on the Senior  Indebtedness,  all other  amounts then due to the Senior
Indebtedness  Representative  and the  Senior  Lenders  under  the  Senior  Loan
Documents  and all unpaid  amounts and  termination  payments  due to the Senior
Lenders (and their  respective  Affiliates,  where  appropriate) of the Eligible
Hedge Contracts,  all subject to documents  reasonably  acceptable to the Senior
Indebtedness  Representative,  the Senior Lenders and the Subordinated  Lenders,
but without any necessity for any consent from the Borrower or any Guarantor.

                    [Signature Pages Begin on the Next Page]


                                       19




         IN WITNESS WHEREOF, the parties hereto have executed this Agreement as
of the date first written above.


                                      SOCIETE GENERALE, as Senior
                                      Administrative Agent for
                                      and on behalf of the Senior
                                      Lenders

                                      By:______________________________________
                                           Elena Robciuc
                                           Director


                                      Address for Notices:

                                      Societe Generale
                                      1111 Bagby Street, Suite 2020
                                      Houston, Texas 77002
                                      Attention:  Cameron Null
                                      Telephone:  713-759-6347
                                      Facsimile:  713-650-0824
                                      E-Mail:  cameron.null@sgcib.com






                                      SOCIETE GENERALE,  as Subordinated
                                      Administrative  Agent for and on behalf of
                                      the Subordinated Lenders

                                      By:______________________________________
                                         Elena Robciuc
                                         Director


                                      Address for Notices:

                                      Societe Generale
                                      1111 Bagby Street, Suite 2020
                                      Houston, Texas 77002
                                      Attention:  Cameron Null
                                      Telephone:  713-759-6347
                                      Facsimile:  713-650-0824
                                      E-Mail:  cameron.null@sgcib.com







                                      ABRAXAS ENERGY PARTNERS, L.P.
                                      By:      Abraxas General Partner, LLC,
                                                            its general partner



                                      By:_____________________________________
                                           Barbara M. Stuckey
                                           President and Chief Operating Officer


                                      Address for Notices:

                                      c/o Abraxas Energy Partners, L.P.
                                      500 N. Loop 1604 East, Suite 100
                                      San Antonio, Texas 78232
                                      Attention: Barbara M. Stuckey
                                      Facsimile: 210-490-8816