Gas Pain, Week of July 20, 2026

Gas got noticeably more expensive. The U.S. average for regular jumped 15¢ in a week to $4.00 a gallon for the week of July 20, 2026. Over the past 12 weeks it was down $0.45, from $4.45 to $4.00.

California was the most expensive state at $5.35, $1.35 above the national figure, with Washington at $4.90 and Alaska at $4.54 (West Coast excl. California regional average) next. At the other end Texas was cheapest at $3.55, $0.46 below national, followed by New Mexico at $3.59 (Gulf Coast regional average) and Mississippi at $3.59 (Gulf Coast regional average). The gap between the priciest and cheapest state was $1.81 a gallon, which on a 15-gallon tank was $27.12 for the same fill. The ranking counts all 50 states, with the regional average standing in wherever EIA publishes no state figure.

Massachusetts climbed the most, up $0.19 to $4.00; Colorado (+$0.18) and Texas (+$0.17) also rose. No state fell more than half a cent.

At the national average a 15-gallon tank cost $60.02 to fill from empty and a 26-gallon truck tank $104.03; think mid-size sedan and full-size pickup. That was $2.19 more than the week before on the smaller tank and $3.80 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.