Otto Energy Limited operates as an oil and gas exploration and production company in North America. The company's principal projects include its 50% interest in the South Marsh Island 71 project, which covers an area of 12.16 square kilometers. Its principal projects also comprise its 22.5% working interest in 4 leases totaling approximately 22,710 acres in the onshore Alaska North slope–Western blocks; and 8%-10.8% working interest in 54 leases covering 154,295 gross acres in the onshore Alaska North slope–Central blocks. The company was formerly known as Ottoman Energy Limited and changed its name to Otto Energy Limited in August 2006. Otto Energy Limited was founded in 2004 and is headquartered in Adelaide, Australia.