

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 7/18/26
| Wholesale Low | Wholesale Avg | |
|---|---|---|
| E10 | $3.29 | $3.48 |
| B5 | $4.06 | $4.24 |
| B20 | $4.02 | $4.19 |
| R99 | $3.67 | $3.75 |
Average Retail Prices 7/18/26
| National | Oregon | Washington | |
|---|---|---|---|
| E10 | $4.00 | $4.65 | $5.11 |
| B5 | $5.11 | $5.49 | $6.05 |
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
Fuel prices soared this past week again as the U.S & Iran peace agreement has entirely collapsed. The most recent military strike by Iran hit U.S bases in Jordan, killing multiple US service men/women. This war has no end in sight, and the general public in the U.S remains very uninformed as to why the peace agreement continues to be violated. The national average gas price is yet again over $4.00/gal. As fuel prices climb once again and the average American struggles with continued inflation, the US government has spent over 3 trillion dollars of taxpayers’ money fighting an unexplained war in the Middle East.
Retail gas prices in Portland are just under $5/gal, averaging around $4.85/gal, while the Seattle area is currently $5.56/gal. Retail diesel prices in Portland are just under $6/gal at a current average of $5.59/gal, while the Seattle area is over $6.37/gal. Crude oil is up $20/barrel in the last 12 days.

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 has jumped over $15/barrel and is currently hovering just above $90/barrel, at a current price of $90.81/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 $90.81/barrel compared to $83.57/barrel last week and $73 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.