"Petroleum industry and trade Government policy United States." . . "Petroleum industry and trade Environmental aspects." . . "Oklahoma." . . "United States. Congress. House. Committee on Government Reform and Oversight. Subcommittee on National Economic Growth, Natural Resources, and Regulatory Affairs." . . "Petroleum industry and trade." . . "Petroleum industry and trade Deregulation." . . "United States." . . . . "Petroleum industry and trade Government policy." . . "Erdölpolitik / Regulierung / Umweltpolitik / USA." . . "Petroleum industry and trade Deregulation United States." . . "Petroleum industry and trade Oklahoma." . . . . . . . . . . . . "Regulatory reform in the oil industry hearing before the Subcommittee on National Economic Growth, Natural Resources, and Regulatory Affairs of the Committee on Government Reform and Oversight, House of Representatives, One Hundred Fourth Congress, second session, May 20, 1996"@en . . . . . . . . . . . . . . . . . "Regulatory reform in the oil industry : hearing before the Subcommittee on National Economic Growth, Natural Resources, and Regulatory Affairs of the Committee on Government Reform and Oversight, House of Representatives, One Hundred Fourth Congress, second session, May 20, 1996" . . "Regulatory reform in the oil industry : hearing before the Subcommittee on National Economic Growth, Natural Resources, and Regulatory Affairs of the Committee on Government Reform and Oversight, House of Representatives, One Hundred Fourth Congress, second session, May 20, 1996"@en . . "Regulatory reform in the oil industry hearing before the Subcommittee on National Economic Growth, Natural Resources, and Regulatory Affairs of the Committee on Government Reform and Oversight, House of Representatives, One Hundred Fourth Congress, second session, May 20, 1997"@en . . . . . "Petroleum industry and trade Environmental aspects United States." . .