Gas prices in Oregon: West Coast (excluding California) average and state gas tax

The EIA doesn't publish a weekly gas price for Oregon on its own, so the closest official figure is the West Coast (excluding California) average: $5.11 a gallon for regular in the week of September 21, 2026, +8.0¢ from the week before. On top of the pump price, Oregon charges 40.0¢ a gallon in state gas taxes and fees, 13th highest of 51. Add the federal 18.4¢ and taxes come to 58.4¢ a gallon, roughly 11% of the average price shown here.