Blue Ridge Mountain Resources, Inc., formerly Magnum Hunter Resources Corporation, is an independent exploration and production company engaged in the acquisition, development and production of natural gas, natural gas liquids and crude oil, primarily in the states of West Virginia and Ohio. The Company operates through three segments: Upstream, Midstream and Oil Field Services. The Upstream segment is organized and operated to explore for and produce crude oil and natural gas within the geographic boundaries of the United States and Canada. The Midstream segment consists primarily of Eureka Hunter Holdings, LLC (Eureka Midstream Holdings), which markets natural gas and operates a network of pipelines and compression stations that gather natural gas and natural gas liquids (NGLs) in the United States for transportation to market. The Oilfield Services segment provides drilling services to oil and natural gas exploration and production companies.