Marksmen Energy Inc. engages in the acquisition, exploration, development, and production of petroleum and natural gas properties in the United States and Canada. It holds a 75% interest in the Davis Holbrook oilfield property; and a 50% interest in Walker Sheets located in Pickaway County, Ohio. The company was formerly known as Marksmen Resources Ltd. and changed its name to Marksmen Energy Inc. in August 2010. Marksmen Energy Inc. was incorporated in 1997 and is headquartered in Calgary, Canada.