Oil and gas development : hearing before the Committee on Energy and Natural Resources, United States Senate, One Hundred Twelfth Congress, first session, on S. 516, S. 843, S. 916, S. 917, May 17, 2011.
Imprint
Washington : U.S. G.P.O. : For sale by the Supt. of Docs., U.S. G.P.O., 2011.