Perpetual Energy Inc. (Perpetual) is a Canada-based oil and natural gas exploration and production company. The Company is engaged in finding, developing, producing and marketing natural gas, natural gas liquids (NGL), oil and bitumen. Perpetual's business consists of operations in Alberta focused on exploring and developing the natural gas and NGL resource opportunities in the deep basin in west central Alberta; the exploration for and extraction of heavy oil in eastern Alberta; the development and production of shallow natural gas from mature producing regions in eastern Alberta; bitumen opportunities in northeast Alberta, and interest in a commercial gas storage business through the operation and ownership in a gas storage facility at Warwick in east central Alberta. In the West Central area, it owns and operates both commingled wells and horizontal wells producing liquids-rich gas from the Wilrich formation. Its Mannville heavy oil property is located east of Edmonton.