1. U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Proved Reserves, 2011;U.S. Energy Information Administration:Washington, DC, 2013; p12, Table 3, Table 10, Table 14,http://www.eia.gov/naturalgas/crudeoilreserves/pdf/uscrudeoil.pdf.
2. Annual Energy Outlook, 2012;U.S. Energy Information Administration:Washington DC, 2012; p61,http://www.eia.gov/forecasts/aeo/pdf/0383(2012).pdf.