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 9/20/25
| Wholesale Low | Wholesale Avg | |
|---|---|---|
| E10 | $2.52 | $2.66 |
| B5 | $2.97 | $3.13 |
| B20 | $3.04 | $3.18 |
| R99 | $2.87 | $2.98 |
Average Retail Prices 9/20/25
| National | Oregon | Washington | |
|---|---|---|---|
| E10 | $3.18 | $4.24 | $4.62 |
| B5 | $3.69 | $4.48 | $5.05 |
Taxes
| Federal | State: OR | Local | State: WA | |
|---|---|---|---|---|
| Gas | $0.184 | $0.40 | $0-.13 | $0.494 |
| Diesel | $0.244 | $0.40 | $0-.13 | $0.494 |
Portland Retail Fuel Price Variance
Fuel Market News
Gas prices have trickled back down this week as the Olympic pipeline has been back online and is supplying throughout the PNW. The past two weeks were filled with a massive price jump in gas, with retail averages above $4.50/gal. We should continue to see these numbers fall back this week. Rack averages for Portland are down $0.49/gal for E10 gasoline, while diesel prices did not move more than $0.01/gal. This is the biggest price drop we have seen for gas in months, but it was expected after the Olympic pipeline was offline. As we roll into October, retail stations will switch back to the winter blend of fuel, which may cause a temporary price spike due to logistics, but will be followed by further price dips throughout the market.
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”.
Want to know what to expect this Fall in regards to our diesel market? You can read our 2025 Diesel Market Outlook For Oregon.
Crude oil is trading just below $65, at a current price of $62.64/barrel. This is $1.88/barrel lower than it was last week.
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 $62.64/barrel compared to $64.52/barrel last week and $67 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.