Total US energy production in 2013 reached 81.7 quadrillion British thermal units (quads), and US domestic energy production as a share of consumption reached 84%, according to data from the US Energy Information Administration.
In total, the US consumed 97.5 quads of energy in 2013, 82% of which was fossil fuels. Renewable and nuclear energy made up 10% and 8%, respectively, of US energy consumption.
“The portion of US energy consumption supplied by domestic production has been increasing since 2005, when it was at its historical low point (69%),” EIA said.
Since 2005, as a result of the application of technologies that can develop harder-to-produce resources, production of domestic resources, particularly natural gas and crude oil, has been increasing. For the third year in a row, natural gas was the largest domestically produced energy resources.
At the same time, reduced road travel, improved vehicle efficiency, and competition among fuels for electric power generation have limited consumption of petroleum and coal, contributing to a rising ratio of domestic production to consumption.
The last significant rise in the ratio occurred from 1978 to 1982. During that period, oil consumption declined in response to higher prices and changing policies, and production rose as oil flowed from Alaska's North Slope. At the same time, domestic coal production was increasing.
