Abraxas Petroleum Corp is an independent natural gas and crude oil exploitation and production company founded in 1977. The Company is an independent energy company engaged in the acquisition, exploitation, development and production of oil and gas in the United States. The Company's oil and gas assets are located in three operating regions; the Rocky Mountain, Permian Basin and onshore Gulf Coast. The Company's properties in the Rocky Mountain region are located in the Williston Basin of North Dakota and Montana and in the Green River, Powder River and Uinta Basins of Wyoming and Utah. In this region, its wells produce oil and gas from various reservoirs, including the Turner, Bakken, Three Forks and Red River formations. Its properties in the Permian Basin region are located in two sub-basins, the Delaware Basin and the Eastern Shelf. In the Delaware Basin, the wells are located in Pecos, Reeves, and Ward Counties, Texas and produce oil and gas from multiple stacked formations from the Bell Canyon at 5,000 feet down to the Ellenburger at 16,000 feet. In the Eastern Shelf, wells are located in Coke, Scurry, Mitchell and Nolan Counties, Texas and produce oil and gas from the Strawn Reef formation at 5,000 to 7,500 feet and oil from the shallower Clearfork formation at depths ranging from 2,300 to 3,300 feet. Its properties in the onshore Gulf Coast region are located along the Edwards trend in DeWitt and Lavaca Counties, Texas, the Eagle Ford shale in Atascosa and McMullen Counties, Texas and in the Portilla field in San Patricio County, Texas. In the Edwards trend, the wells produce gas from the Edwards formation at a depth of 14,000 feet. In the Eagle Ford, wells produce from the Eagle Ford shale from 8,000 to 11,000 feet, and in the Portilla field, wells produce oil and gas from the Frio sands and the deeper Vicksburg from depths of approximately 7,000 to 9,000 feet. The exploration, production and transportation of all types of hydrocarbons are subject to governmental regulations.