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                                                                    Exhibit 23.5




                                         CONSENT



                      CONSENT OF INDEPENDENT PETROLEUM ENGINEERS

                                    February 6, 2003



ABRAXAS PETROLEUM CORPORATION
500 North Loop 1604 East, Suite 100
San Antonio, TX 78270


Gentlemen:

       We hereby consent to the incorporation in the Registration Statement on
Form S-1 and the Registration Statement on Form S-4 of Abraxas Petroleum
Corporation for the year end December 31, 2001 of the references to DeGolyer
and MacNaughton in the "Business--Reserves Information" and "Experts" sections
and to the use by reference of information contained in our "Appraisal Report
as of December 31, 3001 on Certain Properties owned by Abraxas Petroleum
Corporation Appraisal Report as of December 31, 2000 on Certain Interests
owned by Abraxas Petroleum Corporation," and "Appraisal Report as of December
31, 1999, on Certain Interests owned by Abraxas Petroleum Corporation (our
Reports).  However, since the oil, condensate, natural gas liquids, and
natural gas reserves estimates set forth in our Reports have been combined
with reserves estimates of other petroleum consultants, we are necessarily
unable to verify the accuracy of the reserves values contained in the
aforementioned Annual Report.


                                       Very truly yours,

                                       /s/ DeGLOYER and MacNAUGHTON
                                       ----------------------------