Gas Pain, Week of September 1, 2025

The U.S. average for regular gasoline edged up 3¢ to $3.18 a gallon for the week of September 1, 2025. Over the past 12 weeks it was up $0.04, from $3.14 to $3.18.

California was the most expensive state at $4.40, $1.22 above the national figure, with Washington at $4.29 and Alaska at $3.88 (West Coast excl. California regional average) next. At the other end Texas was cheapest at $2.75, $0.42 below national, followed by New Mexico at $2.77 (Gulf Coast regional average) and Mississippi at $2.77 (Gulf Coast regional average). The gap between the priciest and cheapest state was $1.64 a gallon, which on a 15-gallon tank was $24.65 for the same fill. The ranking counts all 50 states, with the regional average standing in wherever EIA publishes no state figure.

Florida climbed the most, up $0.10 to $2.98; Minnesota (+$0.08) and Colorado (+$0.08) also rose. Ohio fell the most, down $0.24 to $3.17.

At the national average a 15-gallon tank cost $47.66 to fill from empty and a 26-gallon truck tank $82.60; think mid-size sedan and full-size pickup. That was $0.45 more than the week before on the smaller tank and $0.78 on the larger one. Of the ten states at the extremes, 7 were shown at a regional average, because EIA publishes a weekly state figure for only 9 states and the rest take the average of their PADD region. Every figure here was from EIA's weekly retail gasoline series for that week.