Did You Know That R99 Is The Same Cost As Diesel Currently?
Call to set up R99 Mobile Fueling Onsite Service in Portland at the same cost of retail diesel. Dyed untaxed R99 is also available. Give us a call today to schedule your delivery.
Wholesale Price Average 8/15/26
| Wholesale Low | Wholesale Avg | |
|---|---|---|
| E10 | $3.32 | $3.48 |
| B5 | $4.21 | $4.33 |
| B20 | $4.15 | $4.26 |
| R99 | $4.04 | $4.16 |
Average Retail Prices 8/15/26
| National | Oregon | Washington | |
|---|---|---|---|
| Regular Gasoline | $4.07 | $4.71 | $5.19 |
| Diesel | $5.44 | $5.55 | $6.21 |
Taxes
| Federal | State: OR | Local | State: WA | |
|---|---|---|---|---|
| Gas | $0.184 | $0.40 | $0-.13 | $0.554 |
| Diesel | $0.244 | $0.40 | $0-.13 | $0.584 |
Portland Retail Fuel Price Variance
Fuel Market News
Fuel prices were up significantly this past week with the national average price for diesel jumping over $0.14/gal. This past week brought an inversion of price movement on the wholesale market . as gas prices dropped about $0.08/gal while diesel prices jumped over $0.42/gal. These surprisingly did not hit the retail market very hard as retail prices move less than $0.10/gal. Drivers in the Portland area are still seeing gas around $4.85/gal & diesel over $5.65/gal. In Seattle, gas prices are $5.45/gal with diesel hovering around $6.45/gal.
WTI Crude is trading around $85.37/barrel as of the 17th. There have been no newly announced military strikes occurring within the last 17 days between the U.S & Iran. Although much still remains unclear about the timeline of the war, there have been no new strikes in the last two weeks.
The 1-5 Corridor will have a planned 10 – 15 week shut down of the 1-5 Corridor next to the Moda Center. This will begin September 9th 2026. We will provide more detail on this in the next Fuel market Report. To learn more go to Oregon – DOT.
Important Note: Per the City Of Portland, “Distributors in the City of Portland are required to meet the minimum biofuel content requirements for all fuel they distribute beginning on May 15, 2024. All diesel fuel distributed to retail stations, non-retail dealers, or wholesale purchaser-consumers must include a minimum of 15% biofuel content, from either renewable diesel or biodiesel. This requirement increases to 50% on May 15, 2026, and 99% on May 15, 2030”.
Reasons For Price Variance
Crude oil is currently hovering, at a current price of $85.37/barrel.
Crude oil is the main ingredient for gasoline and diesel. Per AAA, on average about 50% of what you pay at the pump is the price of crude oil, breaking down as 25% refining, 11% distribution & marketing, and 14% taxes – a helpful breakdown for consumers wondering why they are paying the prices that they pay. Crude Oil is currently trading at $85.37/barrel compared to $80.41/barrel last week and $78 a year ago.
It’s essential to recognize that fuel prices result from a complex interplay of the factors mentioned above and other regional factors. Additionally, prices may vary by specific regions within Oregon and Washington. For the most precise and up-to-date information on fuel prices and the causes for these price changes within your area, use the links below for AAA & GasBuddy.
If you have any questions, feel free to contact Star Oilco and speak to one of our fuel market advisors to discuss how the market can impact your business.