Range Resources Corporation (Range) is an independent natural gas, natural gas liquids and oil company, engaged in the exploration, development and acquisition of natural gas and oil properties, mostly in the Appalachian and Southwestern regions of the United States. Range operates in two regions: the Appalachian (which includes shale tight gas, coal bed methane and conventional natural gas, natural gas liquids, condensate and oil production in Pennsylvania, Virginia, and West Virginia), and Southwestern (which includes the Permian Basin of West Texas and the Delaware Basin of New Mexico, the Texas Panhandle, the Ardmore Basin in Southern Oklahoma, the Nemaha Uplift in Northern Oklahoma and the Anadarko Basin of Western Oklahoma). As of Decmbeer 31, 2011, the Company has approximately 8,600 proven and unproven drilling locations in inventory. During the year ended December 31, 2011, the Company discontinued its Barnett Shale assets that were sold in April 2011.