The primary use of crude oil in the U.S. is transportation.

Crude oil plays a crucial role in the U.S. economy, with the largest portion of its consumption going toward transportation. It is refined into gasoline, diesel, and jet fuel, which power cars, trucks, buses, planes, and ships. These fuels are essential for daily commuting, freight delivery, and air travel, making transportation the dominant sector for crude oil use. Despite shifts toward renewable energy sources and electric vehicles, the demand for oil-based fuels remains high, driving continued reliance on crude oil for mobility across the country.