Weekly Fuel Market Report – May 1st – 7th, 2026
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 5/7/26
| Wholesale Low | Wholesale Avg | |
|---|---|---|
| E10 | $3.89 | $4.17 |
| B5 | $4.52 | $4.61 |
| B20 | $4.53 | $4.62 |
| R99 | $4.13 | $4.26 |
Average Retail Prices 5/7/26
| National | Oregon | Washington | |
|---|---|---|---|
| E10 | $4.52 | $5.33 | $5.76 |
| B5 | $5.64 | $6.21 | $6.81 |
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
Fuel prices jumped yet again this past week with heightened tensions between Iran & The United States. We are currently entering day 74 of this war. This prolonged conflict has sent a ripple effect through the entire market, disrupting supply chains as far as food packaging and labeling. This past week, prices jumped 8% since April 30th. Prices are up on both the wholesale market and the retail market. Portland currently has an average diesel price of over $6.25/gal, with Seattle over $6.99/gal. President Trump has said the Iran ceasefire is “on life support,” which has sent crude oil prices higher yet again, with many analysts still unclear what is next. Iran has most recently proposed charging fees to international companies using fiber optic internet cables that run through the Strait of Hormuz. These seven different cables consist of FALCON, GBI, and Gulf-TGN and are critical to global data and financial traffic. If Iran were to cut these cords or take full control of them, the effects would be immense.
This conflict has continued to draw bipartisan disapproval as the current cost estimates exceed $22 billion.
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”.
Crude oil is hovering just above $100/barrel, at a current price of $102.60/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 $102.60/barrel compared to $118/barrel last week and $71 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.