Abraxas Petroleum Corporation (Abraxas) is an independent energy company primarily engaged in the development and production of natural gas and crude oil. At December 31, 2008, the Company’s properties are located in the Rocky Mountain, Mid-Continent, Permian Basin and Gulf Coast regions of the United States. On January 31, 2008, Abraxas Operating , LLC, a wholly owned subsidiary of the Partnership, consummated the acquisition of certain oil and gas properties located in various states from St. Mary Land & Exploration Company (St. Mary) and certain other sellers. In October 2009, Abraxas Petroleum Corporation closed the merger with Abraxas Energy Partners, L.P.