National overview · Updated June 2026

Why gas costs more in some states than others

A gallon runs under $3 in Oklahoma and over $5 in California. We break the pump price into crude oil, refining, taxes, and state policy, state by state.

U.S. average / gal $3.39
Most expensive $5.03 ↑ California
Least expensive $2.86 ↓ Oklahoma
The map

Average regular price by state

Under $3.00 $3.25 $3.50 $4.00 $4.50+

Cheapest states in red; most expensive in blue.

Top of the table

Most expensive states

$4.86
$4.17
$4.12
Bottom of the table

Least expensive states

$2.98
Featured explainers

Two states, a $2.01 gap

Browse by state

All 50 states