Pinnacle Gas Resources, Inc., an independent energy company, engages in the acquisition, exploration, and development of onshore natural gas reserves in the United States. It focuses on the development of coalbed methane (CBM) properties located in the Rocky Mountain region. The company holds CBM acreage in the Powder River Basin in northeastern Wyoming and southern Montana, as well as in the Green River Basin in southern Wyoming. Pinnacle Gas Resources, Inc. was founded in 2003 and is based in Sheridan, Wyoming.