Gas Pain, Week of August 31, 2026

The U.S. average for regular gasoline slipped 1¢ to $4.07 a gallon for the week of August 31, 2026. Over the past 12 weeks it was up $0.02, from $4.05 to $4.07.

California was the most expensive state at $5.52, $1.45 above the national figure, with Washington at $5.26 and Alaska at $4.82 (West Coast excl. California regional average) next. At the other end Texas was cheapest at $3.58, $0.49 below national, followed by New Mexico at $3.62 (Gulf Coast regional average) and Mississippi at $3.62 (Gulf Coast regional average). The gap between the priciest and cheapest state was $1.94 a gallon, which on a 15-gallon tank was $29.14 for the same fill. The ranking counts all 50 states, with the regional average standing in wherever EIA publishes no state figure.

Connecticut climbed the most, up $0.07 to $4.10; Maine (+$0.07) and New Hampshire (+$0.07) also rose. Colorado fell the most, down $0.25 to $4.13; Ohio (−$0.18) and Minnesota (−$0.12) also fell.

At the national average a 15-gallon tank cost $61.06 to fill from empty and a 26-gallon truck tank $105.85; think mid-size sedan and full-size pickup. That was $0.21 less than the week before on the smaller tank and $0.36 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.