Range Resources Corporation is an independent natural gas, natural gas liquids (NGLs) and oil company. The Company is engaged in the exploration and production of natural gas, NGLs and oil in the United States. It is engaged in the exploration, development and acquisition of natural gas and crude oil properties located primarily in the Appalachian and North Louisiana regions of the United States. Its principal areas of operation are the Marcellus Shale of Pennsylvania and the Lower Cotton Valley formation of North Louisiana. Its properties consist of interests in developed and undeveloped natural gas and oil leases. Its properties in the Appalachian region are located in the Appalachian Basin in the northeastern United States, predominantly in Pennsylvania. The Company's other operations include drilling, production and field operations in the Texas Panhandle, as well as in the Anadarko Basin of Western Oklahoma and the Nemaha Uplift of Northern Oklahoma and Kansas.