Fuentes:
Klare, M. (2012): The Race for What’s Left.
———— (23/10/2012): Mitt Romney’s Extremist Energy Plan
———— (27/11/2012): Lo bueno, lo malo y lo verdaderamente horrible.
Koop, W. (2012): Frack EU: Unconventional intrigue in Poland
Sakmar, S. (2011): The Global Shale Gas Initiative: will the United States be the role model for the development of shale gas around the world?
Sumi, L. (2012): Breaking All the Rules: The Crisis In Oil & Gas Regulatory Enforcement.
Medios oficiales
Agencia Internacional de Energía (IEA) (2012a): Golden Rules for a Golden Age of Gas: World Energy Outlook Special Report on Unconventional Gas.
———————————————————- (2012b): World Energy Outlook 2012.
Cekuta, R. (11/9/2011): Remarks at WorldBoston on Energy Geopolitics.
————-– (6/2/2012): Unconventional Natural Gas: The U.S. Experience and Global Energy Security.
Clinton, H. (18/10/2012): Energy diplomacy in the 21st Century.
Department of Interior (DOI) (s/n): Shale Gas Regulatory and Environmental Workshop.
Goldwyn, D. (24/8/2010): Briefing on the Global Shale Gas Initiative Conference.
Hormats, R. (20/9/2012): Launch of NBR’S Energy Security Report.
Pascual, C. (16/11/2011): Briefing on the Creation of the Energy Resources Bureau at the State Department.
————– (21/11/2011): The State Department’s New Bureau of Energy Resources: Shaping America’s Global Energy Policy.
————– (2012): Energy Priorities for Latin America and the Caribbean: A Perspective on the Sixth Summit of the Americas in Cartagena.
State Department Releases (DE) (16/11/2011): State Department Launches “Bureau of Energy Resources”.
————————————- (13/5/2012): Connecting the Americas 2022.
U.S. Energy Information Administration (EIA) (2011): World Shale Gas Resources: An Initial Assessment of 14 Regions Outside the United States.
—————————————————————- — (2012): Annual Energy Outlook 2012, Early Release.
United States Agency for International Development (USAID) (2012): Ukraine shale gas: Volume I: Environmental and regulatory assessment.
White House (2011): Blueprint for a Secure Energy Future.
Medios de prensa
The New York Times (James Kanter), 13/10/2010: Outlook for Shale Gas in Europe Is Uncertain.
————————— (Ian Urbina), 30/12/2011: Hunt for Gas Hits Fragile Soil, and South Africans Fear Risks.