Exhibit 32.1


                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection with the Annual Report of Abraxas Petroleum Corporation (the
"Company") on Form 10-K /A Number 3 for the year ended December 31, 2006 as
filed with the Securities and Exchange Commission on the date hereof (the
"Report"), I, Robert L.G. Watson, Chairman of the Board, President and Chief
Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350,
as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

     (1) The Report fully complies with the requirements of Section 13(a) or
     15(d) of the Securities Act of 1934; and (2) The information contained in
     the Report fairly presents, in all material respects, the financial
     condition and results of
         operations of the Company.



                                      /s/ Robert L.G. Watson
                                      Robert L.G. Watson
                                      Chairman of the Board, President and
                                      Chief Executive Officer
                                      November 14, 2007





This certification accompanies the Report pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the
Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of ss.18
of the Securities Exchange Act of 1964, as amended.

A signed original of this written statement required by Section 906 has been
provided to the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.





                                                                   Exhibit 32.2

                            CERTIFICATION PURSUANT TO
                             18 U.S.C. SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002


In connection with the Annual Report of Abraxas Petroleum Corporation (the
"Company") on Form 10-K /A Number 3 for the year ended December 31, 2006 as
filed with the Securities and Exchange Commission on the date hereof (the
"Report"), I, Chris E, Williford, Executive Vice President and Chief Financial
Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

     (1) The Report fully complies with the requirements of Section 13(a) or
     15(d) of the Securities Act of 1934; and (2) The information contained in
     the Report fairly presents, in all material respects, the financial
     condition and results of
         operations of the Company.



                        /s/ Chris E. Williford
                            Chris E. Williford
                            Executive Vice President and
                            Chief Financial Officer
                            November 14, 2007






This certification accompanies the Report pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by the
Sarbanes-Oxley Act of 2002, be deemed filed by the Company for purposes of ss.18
of the Securities Exchange Act of 1964, as amended.

A signed original of this written statement required by Section 906 has been
provided to the Company and will be retained by the Company and furnished to the
Securities and Exchange Commission or its staff upon request.