Statewide average updated daily • Source: AAA
Oregon gas prices typically run 30 to 60 cents above the national average, placing it among the more expensive Western states alongside Washington and California. High state taxes, distance from major refining infrastructure, and a cap-and-trade carbon pricing program similar to Washington’s all contribute to Oregon’s elevated costs. Oregon drivers also encounter a unique quirk that exists nowhere else in the country — until recently, state law prohibited drivers from pumping their own gas in most situations.
Oregon’s state gas tax is around 40 cents per gallon, one of the higher flat rates in the Western United States. Oregon also has a cap-and-trade carbon pricing program — the Climate Protection Program — that adds cost to transportation fuels as suppliers must purchase carbon allowances. This program adds an estimated 20 to 40 cents per gallon to Oregon fuel costs on top of the existing tax burden.
Oregon receives most of its fuel supply from refineries in Washington State via pipeline and from marine shipments to Portland area terminals. The state has no refineries of its own, making it entirely dependent on imported supply. Portland serves as the main distribution hub with fuel trucked to communities throughout the state.
Rural Oregon and the eastern part of the state face particularly high prices due to long delivery distances from Portland terminals and minimal station competition across vast sparsely populated areas.
Did you know? Oregon was one of only two states — along with New Jersey — that prohibited drivers from pumping their own gasoline, a law dating back to 1951. Oregon finally allowed self-service statewide in 2023, ending over 70 years of mandatory attendant service. Oregon’s Climate Protection Program targets a 50 percent reduction in greenhouse gas emissions below 1990 levels by 2035 — one of the most ambitious climate targets of any state. Oregon also operates OReGO, one of the country’s first per-mile road usage charge programs, as a model for maintaining road funding as EV adoption reduces gas tax revenue.
Compare today’s average in Oregon with nearby states to understand regional price differences.
Learn more about what drives gas prices across the United States.
Crude oil prices are the biggest driver of what you pay at the pump. For U.S. and global crude oil production data updated from EIA figures, see Oil Production Live.