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 (333-127480, 333-132971 and 333-143728) and Form S-8 (No.
333-17375, 333-17377, 033-81416, 333-55691,  333-74592,333-74614 and 333-135032)
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/A Number 3 .


BDO Seidman, LLP
Dallas, Texas

November 14, 2007







                                                                    Exhibit 23.2


                       Consent of DeGolyer and MacNaughton


         We consent to the use of the name DeGolyer and MacNaughton, to
references to DeGolyer and MacNaughton, and to the inclusion of information
taken from our "Appraisal Report as of December 31, 2006 on Certain Properties
owned by Abraxas Petroleum Corporation Special Case," "Appraisal Report as of
December 31, 2005 on Certain Properties owned by Abraxas Petroleum Corporation
Special Case," and "Appraisal Report as of December 31, 2004 on Certain
Properties owned by Abraxas Petroleum Corporation Special Case" (our reports)
under the sections "Item 1 - Business General"," Item 2 Properties", "Primary
Operating Areas" and "Reserves Information" in the Abraxas Petroleum Corporation
Annual Report on Form 10-K/A Number 3 for the year ended December 31, 2006.

                            DeGolyer and MacNaughton



Dallas, Texas
November 14, 2007