Sanchez Energy Corporation is an independent exploration and production company focused on the acquisition and development of unconventional oil and natural gas resources in the onshore United States Gulf Coast. The Company operates in the Eagle Ford Shale in South Texas and the Tuscaloosa Marine Shale (TMS) in Mississippi and Louisiana. In July 2014, Sanchez Energy Corp announced the acquisition of Eagle Ford Shale assets from wholly-owned subsidiaries of Royal Dutch Shell plc.