Oil reserves in the United States
Within the petroleum industry, proven crude oil reserves in the United States were 44.4 billion barrels (7.06×109 m3) of crude oil as of the end of 2021, excluding the Strategic Petroleum Reserve.
In 2012, the Energy Information Administration using data compiled by the United States Geological Survey under the Department of the Interior estimated US undiscovered, technically recoverable oil resources to be an additional 198 billion barrels.