Week of September 14, 2026
What moved, what a fill-up and a commute cost, and which states and metros changed most — each figure dated, sourced and ready to download with its chart.
The US average for regular gasoline was $4.32 a gallon in the week of September 14, 2026, up 3.9% from the previous week and up 36.3% from a year earlier. A 15-gallon fill costs $64.79.
Basis: U.S. Energy Information Administration, weekly retail gasoline and diesel prices, weeks ending 2026-09-14 and earlier. Fill cost: FuelWide calculation.
See the figures →Regular gasoline in Michigan rose 14.2% between September 13, 2026 and September 20, 2026, to $4.93 a gallon — the steepest weekly increase of any state.
Basis: AAA daily state averages: today's figure against AAA's own week-ago average (2026-09-13 → 2026-09-20). Credit AAA for the prices.
See the figures →Filling a 15-gallon tank with regular costs $92.29 in California and $59.22 in Texas — a $33.07 difference.
Basis: AAA daily state averages for 2026-09-20. 15 gallons × state average: FuelWide calculation. Individual stations vary.
See the figures →Source: FuelWide (fuelwide.com) analysis of U.S. EIA and AAA data, week of September 14, 2026.
Alt text: Line chart of the US weekly average retail price of regular gasoline and diesel over the last two years; regular at $4.32 and diesel at $6.29 a gallon in the week of September 14, 2026.
What 100 miles of driving costs in fuel, in a car doing 25 mpg (4gallons of regular), at each week’s national EIA average. Fixed assumptions so the change is the price, nothing else.
| Area (EIA) | 100 mi now | 4 weeks ago | A year ago |
|---|---|---|---|
| United States | $17.28 | $16.20 | $12.67 |
| California | $23.31 | $21.59 | $17.87 |
| Colorado | $16.92 | $17.02 | $12.31 |
| Florida | $16.41 | $15.07 | $11.86 |
| Massachusetts | $17.01 | $15.80 | $12.32 |
| Minnesota | $16.89 | $15.79 | $11.91 |
| New York | $17.36 | $16.17 | $12.64 |
| Ohio | $16.59 | $16.72 | $11.36 |
| Texas | $15.22 | $14.48 | $11.08 |
| Washington | $22.01 | $20.48 | $18.14 |
| Boston | $17.06 | $15.89 | $12.40 |
| Chicago | $17.68 | $17.16 | $14.08 |
| Cleveland | $16.72 | $17.02 | $11.81 |
| Denver | $17.00 | $17.10 | $12.22 |
| Houston | $14.95 | $14.10 | $10.76 |
| Los Angeles | $23.22 | $21.61 | $17.92 |
| Miami | $16.42 | $15.42 | $12.04 |
| New York City | $17.47 | $15.80 | $12.40 |
| San Francisco | $23.72 | $21.72 | $17.76 |
| Seattle | $22.61 | $21.25 | $18.71 |
EIA survey week of September 14, 2026. The EIA publishes 9 states and 10 cities weekly; other states are in the AAA tables below. Download these rows (CSV).
Regular gasoline, AAA daily state averages against AAA’s own week-ago figures, September 13, 2026 → September 20, 2026.
AAA daily state averages for September 20, 2026. Credit AAA when quoting these prices.
Regular gasoline against AAA’s own week-ago figure for each metro area, September 20, 2026.
Fuel for one way in a typical gas car, priced state by state along the route at AAA daily averages. Tolls, parking and detours are not included.
Responsible for this data: Teodor Karagiozov, founder and editor. He built FuelWide and maintains its data pipeline, source registry and methodology, and answers corrections himself.
Generated automatically from the data for the EIA survey week of September 14, 2026 and rebuilt on every data refresh. The page shows the current edition; downloads carry their data date so a quoted figure can always be traced.
