ERF

Enerplus Corporation is a Canada-based independent oil and gas exploration and production company. The Company is focused on the development of North American oil and natural gas assets. Its portfolio includes light oil assets in the Bakken, North Dakota, and a position in the Marcellus natural gas shale region in northeast Pennsylvania. The Company's operations are concentrated in the core of the Bakken/Three Forks light oil shale play where it holds approximately 235,600 net acres in North Dakota. The acreage is primarily located across the Fort Berthold Indian Reservation, as well as in Williams and Dunn Counties. It holds an interest in approximately 32,500 net acres in the dry gas window of the Marcellus shale in northeast Pennsylvania. This non-operated position is located in Susquehanna, Bradford, Wyoming, Sullivan and Lycoming counties.