Gas Pain, Week of September 8, 2025

The U.S. average for regular gasoline edged up 2¢ to $3.19 a gallon for the week of September 8, 2025. Over the past 12 weeks it was down $0.02, from $3.21 to $3.19.

California was the most expensive state at $4.42, $1.23 above the national figure, with Washington at $4.37 and Alaska at $3.95 (West Coast excl. California regional average) next. At the other end Texas was cheapest at $2.69, $0.50 below national, followed by New Mexico at $2.73 (Gulf Coast regional average) and Mississippi at $2.73 (Gulf Coast regional average). The gap between the priciest and cheapest state was $1.73 a gallon, which on a 15-gallon tank was $25.92 for the same fill. The ranking counts all 50 states, with the regional average standing in wherever EIA publishes no state figure.

Colorado climbed the most, up $0.14 to $3.20; Minnesota (+$0.08) and Delaware (+$0.07) also rose. Ohio fell the most, down $0.18 to $2.99; Texas (−$0.06) and Illinois (−$0.03) also fell.

At the national average a 15-gallon tank cost $47.88 to fill from empty and a 26-gallon truck tank $82.99; think mid-size sedan and full-size pickup. That was $0.23 more than the week before on the smaller tank and $0.39 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.