The national average for a gallon of regular gasoline reached $4.02 on 31 March 2026, the highest since 2022. This follows a sharp rise in crude oil prices due to ongoing conflict in the Middle East.
Brent crude and U.S. benchmark crude both exceed $100 per barrel, up from $70 before the conflict began. Prices vary significantly across states due to differing tax rates and local supply conditions.
U.S. diesel averaged $5.45 per gallon, up from $3.76 before the conflict. The rise has prompted the Postal Service to seek an 8% temporary surcharge on some services.