The United States is expected to be the largest producer of petroleum hydrocarbons and natural gas in 2013
Source: United States Energy Information Administration
Note: Oil production includes crude oil, natural gas liquids, condensates, refinery processing gains and other liquids, including biofuels. Barrels of oil equivalent per day were calculated using a conversion factor of 1 barrel of oil equivalent = 5.55 million British thermal units (Btu).