5BP. BP statistical review of world energy 2012 [R]. I.on don: BP, 2012.
6IHS Global Insight(USA). The economic and employment contributions of shale gas in the United States[R]. Wash ington DC: IHS Global Insight, 2011.
7胡朝元,陈孟晋,邓攀.环境保护与中国天然气发展战略[M].北京:石油工业出版社,2004.
8US Energy Information Administration(US EIA). About United States natural gas pipelines - transporting natural gas[R]. Washington DC: EIA,2009.
9US Joint Committee on Taxation(US JCT). General expla- nation of the crude oil windfall profit tax act of 1980[M]. Washington DC:US Government Printing Office, 1981.
10US Energy Information Administration(US EIA), US De- partment of Energy(US DOE). Analysis of five selected tax provisions of the Conference Energy Bill of 2003[R]. Washington DC : EIA and DOE, 2004.
