Oregon’s average price for diesel soared to an all-time high of $6.67 per gallon this week, while the national average reached an all-time high of $6.23 per gallon. Gas and diesel prices are higher in all 50 states this week.
Crude oil prices are at four-month highs – above $100 per barrel due to new attacks on energy infrastructure in Saudi Arabia, attacks on ships in the Red Sea, and the continued disruption of ship traffic in the Strait of Hormuz. The war between Russia and Ukraine is also pressuring prices, as Ukrainian drone strikes have taken a significant amount of Russia’s refining capacity offline.
Gas and diesel prices are climbing at the time of year when prices typically decline due to reduced demand and the switch to cheaper winter-blend fuel. For the week, the national average for regular gasoline jumps 18 cents to $4.33 a gallon; the Oregon average adds 10 cents to $5.12 a gallon. Oregon has one of the smallest week-over-week increases in the country.
The national average for regular gas is at its highest price ever for this time of year. The previous high price for mid-September was reached in 2023. Around this time three years ago, the national average was at $3.87, compared to $4.33 today.
The Oregon average is also at its highest price ever for this time of year. In mid-September 2023, Oregon drivers were paying an average price of $4.70, compared to $5.12 today.
The Oregon average for regular gas began 2026 at $3.42 a gallon. The highest price of the year so far is $5.353 on May 20. The lowest price of the year so far is $3.33 on Jan. 20. The record high for the Oregon average is $5.548, set on June 15, 2022.
The Washington average for regular gas began 2026 at $3.86 a gallon. The highest price of the year so far is $5.789 on May 20, which is the record high for Washington; the lowest price of the year so far is $3.79 on Jan. 14.
The national average began 2026 at $2.83 a gallon. The highest price of the year so far is $4.564 on May 21; the lowest price of the year so far is $2.795 on Jan. 11. The record high for the national average is $5.016 set on June 14, 2022.
All 50 states and the District of Columbia have higher gas prices this week. Michigan (+41 cents) has the largest week-over-week jump in the nation. Oregon (+10 cents) has one of the smallest week-over-week increases – it’s the 46th largest. Arizona (+4 cents) has the smallest week-over-week increase.
California ($6.02) has the most expensive gas in the nation for the ninth week in a row and is the only state with an average at or above $6 per gallon. There are five states with averages at or above $5 per gallon, 33 states and the District of Columbia with averages at or above $4 a gallon, and 11 states with averages in the $3 range. No state has an average in the $2 range this week.
The cheapest gas in the nation is in Indiana ($3.59) and Texas ($3.86). No state has had an average below $2 a gallon since Jan. 7, 2021, when Mississippi and Texas were below that threshold.
The difference between the most expensive and least expensive states is $2.43 this week, compared to $2.44 a week ago.
Oregon is one of 46 states and the District of Columbia with higher prices now than a month ago. The national average is 26 cents more and the Oregon average is 40 cents more than a month ago. Utah (+48 cents) has the largest month-over-month increase. Ohio (-11 cents) has the biggest month-over-month decline.
All 50 states and the District of Columbia have higher prices now than a year ago. The national average is $1.15 more, while the Oregon average is 82 cents more than one year ago. Oregon has the second smallest year-over-year increase in the nation. Indiana (+45 cents) has the smallest. Utah (+$1.49) has
the largest year-over-year jump in the nation. The West Coast region continues to have the most expensive pump prices in the nation, with all seven states in the top 10.
As mentioned, California has the most expensive gas in the country for the ninth consecutive week. Washington, Hawaii, Nevada, Oregon, and Alaska round out the top six; Arizona is ninth. Oregon is fifth most expensive for the third week in a row.
All of the seven states in the West Coast region have week-over-week increases, but they are smaller than many other states: Nevada (+15 cents), California (+15 cents), Oregon (+10 cents), Washington (+6 cents), Hawaii (+5 cents), Alaska (+5 cents), and Arizona (+4 cents).
Diesel prices are higher in all 50 states and the District of Columbia this week. Florida (+64 cents) has the largest week-over-week jump. Hawaii (+8 cents) has the smallest. For the week, the national average shoots up 37 cents to $6.27 a gallon, which is a new all-time record high. The national average price for diesel has been setting new record highs daily since Sept. 4, when it rose to $5.85 a gallon. The previous record high for diesel was $5.816 set on June 19, 2022. The Oregon average soars 41 cents to $6.67 per gallon, which is a new all-time record high. The Oregon average price for diesel has been setting new record highs daily since Sept. 12, when it climbed to $6.55 per gallon. The previous record high was $6.47 set on July 3, 2022. A year ago, the national average for diesel was $3.69 and the Oregon average was $4.49.
