Exhibit 99.1

                         Abraxas Petroleum Corporation
           500 N. Loop 1604 East, Suite 100, San Antonio, Texas 78232
                 P.O. Box 701007, San Antonio, Texas 78270-1007
                     Office: 210.490.4788 Fax: 210.490.8816

                                  NEWS RELEASE

                Abraxas Announces Production of 5.2 MMcfepd from
         West Texas Horizontal Devonian Well and Provides Wyoming Update

SAN ANTONIO (Aug. 22, 2005) - Abraxas  Petroleum  Corporation  (AMEX:ABP)  today
announced  the results from a Devonian  horizontal  well drilled in the Oates SW
Field area of West Texas and provided an update of Wyoming operations.

The La Escalera #1AH was drilled to a total depth of 16,022', including a 2,481'
lateral.  The well was recently  completed and has stabilized at a gross rate of
approximately  5.2 MMcfepd with flowing tubing  pressure of 3,600 psig.  Abraxas
owns a 100% working interest in this well,  which adjoins the recently  acquired
Hudgins  Ranch.  Abraxas' total net production is currently 30% greater than 2nd
quarter average.

In Brooks Draw, Wyoming, the Prairie Falcon #2, reached a total depth of 9,038';
production  casing  is being  set after  encountering  encouraging  oil shows in
multiple zones. Abraxas owns a 100% working interest in this well.

"Today's  announcement  of very strong  results  from the La Escalera  #1AH well
provides  ongoing  confirmation  that Abraxas'  business  strategy  continues to
create  shareholder  value. In addition,  we look forward to definitive  results
from our first Wolfcamp re-entry, the La Escalera #2, and our Prairie Falcon #2,
in the near future," commented Bob Watson, Abraxas' President and CEO.

Abraxas Petroleum  Corporation is a San Antonio-based  crude oil and natural gas
exploitation and production company with operations in Texas and Wyoming.

Safe Harbor for forward-looking  statements:  Statements in this release looking
forward in time involve  known and unknown  risks and  uncertainties,  which may
cause Abraxas' actual results in future periods to be materially  different from
any future performance  suggested in this release. Such factors may include, but
may not be necessarily limited to, changes in the prices received by Abraxas for
crude oil and natural  gas. In addition,  Abraxas'  future crude oil and natural
gas  production is highly  dependent upon Abraxas' level of success in acquiring
or finding additional reserves.  Further, Abraxas operates in an industry sector
where the  value of  securities  is highly  volatile  and may be  influenced  by
economic  and  other  factors  beyond  Abraxas'  control.   In  the  context  of
forward-looking  information provided for in this release,  reference is made to
the discussion of risk factors  detailed in Abraxas'  filing with the Securities
and Exchange Commission during the past 12 months.


FOR MORE INFORMATION CONTACT:
Barbara M. Stuckey/Director of Corporate Development
Direct Telephone 210.757.9835
Main Telephone 210.490.4788
bstuckey@abraxaspetroleum.com
www.abraxaspetroleum.com