Pump prices · week of September 21, 2026
Diesel and regular gasoline prices in US Gulf Coast
In the week of September 21, 2026, diesel averaged $6.18 a gallon in US Gulf Coast and regular gasoline $3.97 (US$1.63 a litre for diesel). Diesel is +77% and regular gasoline +57% compared with the week of February 23, 2026, before the Strait of Hormuz closed.
Updated September 21, 2026 · Source: US EIA weekly retail gasoline and diesel prices
| This week | Week ago | Week of February 23, 2026 | Change since then | |
|---|---|---|---|---|
| Regular gasoline ($/gal) | 3.972 | 3.852 | 2.532 | +56.9% |
| Diesel ($/gal) | 6.177 | 6.027 | 3.489 | +77.0% |
Trend
■ Diesel ■ regular gasoline, weekly, in $/gal.
Common questions
How much is diesel in US Gulf Coast?
$6.18 a gallon on average in the week of September 21, 2026 (US$1.63 a litre), according to the US EIA weekly retail gasoline and diesel prices.
How much has fuel risen in US Gulf Coast since February 2026?
Diesel: +77%. Regular gasoline: +57%. Compared with the week of February 23, 2026.
How does US Gulf Coast compare with the US average?
Diesel in US Gulf Coast is $6.18 against $6.53 for the United States.
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