Tamarack Valley Energy Ltd. engages in the exploration, development, production, and sale of oil, natural gas, and natural gas liquids in the Western Canadian sedimentary basin. Its oil and natural gas properties are the Clearwater and Charlie Lake assets located in the province of Alberta, Canada. The company was formerly known as Tango Energy Inc. and changed its name to Tamarack Valley Energy Ltd. in June 2010. The company was incorporated in 2002 and is headquartered in Calgary, Canada.