The United States Energy Information Administration estimates that the United States will be the world’s largest producer of petroleum hydrocarbons and natural gas in 2013, surpassing Russia and Saudi Arabia. For the United States and Russia, the total production of petroleum hydrocarbons and natural gas, in terms of energy content, is almost evenly split between oil and natural gas. Saudi Arabia’s production, on the other hand, strongly favors oil.

Since 2008, US oil production has increased by 7 quadrillion Btu, with dramatic growth in Texas and North Dakota. Natural gas production increased by 3 quadrillion Btu over the same period, with much of that growth coming from the eastern United States. Russia and Saudi Arabia have each increased their combined hydrocarbon production by about 1 quadrillion Btu over the past five years.