United States. Energy Information Administration. Office of Oil and Gas. (2012). U.S. crude oil, natural gas, and natural gas liquids reserves ... annual report. Energy Information Administration, Office of Oil and Gas, U.S. Dept. of Energy.
Chicago Style (17th ed.) CitationUnited States. Energy Information Administration. Office of Oil and Gas. U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves ... Annual Report. Washington, DC: Energy Information Administration, Office of Oil and Gas, U.S. Dept. of Energy, 2012.
MLA (9th ed.) CitationUnited States. Energy Information Administration. Office of Oil and Gas. U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves ... Annual Report. Energy Information Administration, Office of Oil and Gas, U.S. Dept. of Energy, 2012.