Royale Energy, Inc. operates as an independent oil and natural gas producer in the United States. It is involved in the production and sale of natural gas; acquisition of oil and gas lease interests and proved reserves; drilling of exploratory and development wells; and sale of fractional working interests in wells to be drilled. The company also owns and leases wells located primarily in the Sacramento Basin and San Joaquin Basin in California, as well as in Utah, Texas, Oklahoma, Louisiana, and Alaska. In addition, it owns proved developed producing and non-producing reserves of oil and natural gas in Utah, Texas, Oklahoma, and Louisiana, as well as shale oil property in Alaska. As of December 31, 2015, the company operated 52 natural gas wells in California; and had non-operating interests in 3 natural gas wells in Utah, 12 oil and gas wells in Texas, 2 in Oklahoma, 1 in California, and 1 in Louisiana. It also had proved developed reserves of 2,174 millions of cubic feet (MMCF) and total proved reserves of 2,511 MMCF of natural gas. Royale Energy, Inc. was founded in 1986 and is based in El Cajon, California.