Pump prices · week of September 21, 2026
Diesel and regular gasoline prices in US West Coast
In the week of September 21, 2026, diesel averaged $7.46 a gallon in US West Coast and regular gasoline $5.60 (US$1.97 a litre for diesel). Diesel is +67% and regular gasoline +36% compared with the week of February 23, 2026, before the Strait of Hormuz closed.
Updated September 21, 2026 · Source: US EIA weekly retail gasoline and diesel prices
| This week | Week ago | Week of February 23, 2026 | Change since then | |
|---|---|---|---|---|
| Regular gasoline ($/gal) | 5.600 | 5.467 | 4.111 | +36.2% |
| Diesel ($/gal) | 7.456 | 7.250 | 4.465 | +67.0% |
Trend
■ Diesel ■ regular gasoline, weekly, in $/gal.
Common questions
How much is diesel in US West Coast?
$7.46 a gallon on average in the week of September 21, 2026 (US$1.97 a litre), according to the US EIA weekly retail gasoline and diesel prices.
How much has fuel risen in US West Coast since February 2026?
Diesel: +67%. Regular gasoline: +36%. Compared with the week of February 23, 2026.
How does US West Coast compare with the US average?
Diesel in US West Coast is $7.46 against $6.53 for the United States.
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