Gas Pain, Week of August 25, 2025

The U.S. average for regular gasoline edged up 2¢ to $3.15 a gallon for the week of August 25, 2025. Over the past 12 weeks it was up $0.04, from $3.11 to $3.15.

California was the most expensive state at $4.35, $1.21 above the national figure, with Washington at $4.29 and Alaska at $3.84 (West Coast excl. California regional average) next. At the other end Texas was cheapest at $2.68, $0.47 below national, followed by New Mexico at $2.69 (Gulf Coast regional average) and Mississippi at $2.69 (Gulf Coast regional average). The gap between the priciest and cheapest state was $1.67 a gallon, which on a 15-gallon tank was $25.08 for the same fill. The ranking counts all 50 states, with the regional average standing in wherever EIA publishes no state figure.

Ohio climbed the most, up $0.33 to $3.41; Illinois (+$0.08) and Indiana (+$0.08) also rose. Florida fell the most, down $0.13 to $2.88; Texas (−$0.08) and Alabama (−$0.05) also fell.

At the national average a 15-gallon tank cost $47.20 to fill from empty and a 26-gallon truck tank $81.82; think mid-size sedan and full-size pickup. That was $0.33 more than the week before on the smaller tank and $0.57 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.