Which U.S. state produces the most oil?

Texas produces the most oil of any U.S. state.

Its lead comes from a combination of enormous petroleum resources, long-established infrastructure and highly productive basins. The Permian Basin, spanning western Texas and southeastern New Mexico, is the country's dominant oil-producing region; Texas also contains major portions of the Eagle Ford and other producing areas.

EIA data list Texas at roughly 2.10 billion barrels of crude oil production in 2025. The state's output has surged during the shale boom, when horizontal drilling and hydraulic fracturing made previously difficult formations much more economical to develop. Texas's production is measured separately from federal offshore output in the Gulf of Mexico.

A common mix-up is the Permian Basin: it is a region, not a state, and crosses the Texas–New Mexico border. New Mexico has become a major producer, while North Dakota's Bakken formation drove a dramatic earlier boom. California and Alaska remain important historical producers, but neither currently matches Texas's volume.