The largest oil reserve in the U.S. is located in the Gulf of Mexico.

The Gulf of Mexico holds the largest oil reserves in the United States, primarily offshore. This region contains significant Deepwater and shallow-water oil fields, contributing a substantial portion of the country’s total oil production. The U.S. government and private companies have invested heavily in exploration and drilling technologies to extract oil from this area. Offshore platforms in the Gulf of Mexico are essential for meeting domestic energy needs, and the region’s oil fields continue to be a critical source of energy production for the U.S. economy and global markets.