Elk Petroleum, Inc. is a Denver-based independent energy company specializing in enhanced oil recovery (EOR) technologies across the Rocky Mountain region. A subsidiary of the Australian-listed Elk Petroleum, Limited, the company focuses on secondary and tertiary production phases, including water and gas injection. Its primary asset is a 63% operating working interest in the Greater Aneth Oil Field in Utah, spanning 48,000 acres. The company also maintains interests in the Grieve Oil Field Project in Wyoming and the Madden/Lost Cabin Gas Plant, employing 95 people.