Pioneer Oil and Gas has primarily been engaged in the acquisition and exploration of oil and gas properties in Utah, Wyoming, Colorado and Nevada. The company has focused its efforts during the years in acquiring oil and gas properties from other companies, selling producing wells and acquiring new oil and gas leases for the purpose of exploring for oil and gas. Leases have also been acquired during the years for the purpose of reselling them at a profit to other oil and gas companies. It operates nearly 10 producing oil and gas wells in Utah and Wyoming. The company also owns an interest in several nonoperated oil and gas wells and overriding royalty interests in oil and gas wells located in Utah, Colorado and Wyoming. Primary among these overriding royalty interests is the Hunter Mesa Unit and Grass Mesa Unit in Garfield County, Colo. Pioneer Oil and Gas is headquartered in South Jordan, Utah.