Gas Pain This Week

The U.S. average for regular gasoline slipped 1¢ to $4.46 a gallon for the week of September 28, 2026. Over the past 12 weeks it is up $0.61, from $3.85 to $4.46.

California is the most expensive state at $6.19, $1.72 above the national figure, with Washington at $5.45 and Alaska at $5.15 (West Coast excl. California regional average) next. At the other end Texas is cheapest at $3.84, $0.62 below national, followed by New Mexico at $3.92 (Gulf Coast regional average) and Mississippi at $3.92 (Gulf Coast regional average). The gap between the priciest and cheapest state is $2.35 a gallon, which on a 15-gallon tank is $35.22 for the same fill. The ranking counts all 50 states, with the regional average standing in wherever EIA publishes no state figure.

California climbed the most, up $0.19 to $6.19; Florida (+$0.07) and Alaska (+$0.05) also rose. Ohio fell the most, down $0.21 to $4.26; Colorado (−$0.16) and Illinois (−$0.09) also fell.

At the national average a 15-gallon tank costs $66.97 to fill from empty and a 26-gallon truck tank $116.09; think mid-size sedan and full-size pickup. That is $0.19 less than the week before on the smaller tank and $0.34 on the larger one. Of the ten states at the extremes, 7 are 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 is from EIA's weekly retail gasoline series for this week.