Gas Pain, Week of December 29, 2025

The U.S. average for regular gasoline slipped 3¢ to $2.81 a gallon for the week of December 29, 2025. Over the past 12 weeks it was down $0.25, from $3.06 to $2.81.

California was the most expensive state at $4.04, $1.23 above the national figure, with Washington at $3.77 and Alaska at $3.38 (West Coast excl. California regional average) next. At the other end Colorado was cheapest at $2.20, $0.61 below national, followed by Texas at $2.36 and New Mexico at $2.39 (Gulf Coast regional average). The gap between the priciest and cheapest state was $1.84 a gallon, which on a 15-gallon tank was $27.57 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 $0.19 to $2.71. Florida fell the most, down $0.10 to $2.69; Colorado (−$0.07) and Texas (−$0.07) also fell.

At the national average a 15-gallon tank cost $42.16 to fill from empty and a 26-gallon truck tank $73.09; think mid-size sedan and full-size pickup. That was $0.45 less than the week before on the smaller tank and $0.78 on the larger one. Of the ten states at the extremes, 6 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.