Exhibit 23.1


            Consent of Independent Registered Public Accounting Firm



Abraxas Petroleum Corporation
San Antonio, Texas

We  hereby  consent  to the  incorporation  by  reference  in  the  Registration
Statements on Form S-3 (No. 33-48932,  33-48934,  33-72268,  33-81416, 33-81418)
and Form S-8 (No.  333-17375  and  333-17377 and  333-132971  and333-127480)  of
Abraxas  Petroleum  Corporation of our reports dated March 9, 2007,  relating to
the  consolidated  financial  statements,   and  the  effectiveness  of  Abraxas
Petroleum Corporation's internal control over financial reporting, which appears
in the Annual Report to Shareholders, which is incorporated by reference in this
Annual Report on Form 10-K.


BDO Seidman, LLP
Dallas, Texas

March 9, 2007