Abraxas Petroleum CorporationAbraxas Petroleum Corporation is a San Antonio based crude oil and natural gas exploration and production company with operations across the Rocky Mountain, Mid-Continent, Permian Basin and onshore Gulf Coast regions of the United States and in the province of Alberta, Canada. Important Additional Information Abraxas will file with the Securities and Exchange Commission (“SEC”) and provide to its stockholders a proxy statement and a white proxy card in connection with its 2013 Annual Meeting. STOCKHOLDERS ARE URGED TO READ THIS PROXY STATEMENT AND OTHER RELEVANT DOCUMENTS FILED BY ABRAXAS WITH THE SEC IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. Stockholders will be able to obtain free copies of these documents through the website maintained by the SEC at http://www.sec.gov and through the website maintained by Abraxas at http://www.abraxaspetroleum.com Certain Information Regarding Participants Abraxas, its directors and certain of its officers may be deemed to be participants in the solicitation of Abraxas’ stockholders in connection with its 2013 Annual Meeting. Information regarding the names, affiliations and direct and indirect interests (by security holdings or otherwise) of these persons will be found in Abraxas’ proxy statement for its 2013 Annual Meeting, which Abraxas will file with the SEC. Additional information regarding these persons can also be found in other documents filed by Abraxas with the SEC. Stockholders will be able to obtain a free copy of the proxy statement and other documents filed by Abraxas with the SEC from the sources listed above. 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’ filings with the Securities and Exchange Commission during the past 12 months.