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Star Oilco

Weekly Fuel Market Report – Aug 9th – Aug 15th, 2026 150 150 Star Oilco

Weekly Fuel Market Report – Aug 9th – Aug 15th, 2026

Fuel Market Report by Star Oilco Banner
Oregon and Washington gas prices compared with U.S. average and crude oil prices, July to August 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 8/15/26

Wholesale LowWholesale 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

NationalOregonWashington
Regular Gasoline$4.07$4.71$5.19
Diesel$5.44$5.55$6.21

Taxes

FederalState: ORLocalState: WA
Gas$0.184$0.40$0-.13$0.554
Diesel$0.244$0.40$0-.13$0.584

Portland Retail Fuel Price Variance

Average Oregon fuel prices for regular, midgrade, premium gasoline and diesel, August 2026

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.

fuel-market-report-star-oilco-5-18-24

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 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.

Set up your R99 Mobile Fueling Onsite Service in Portland Today Including Dyed Untaxed R99.

Give Us A Call Today

For other news in the fuel market:

https://gasprices.aaa.com/?state=OR

https://www.gasbuddy.com/charts

Join the Fuel Market Report newsletter for your weekly fill of updates!

Icons representing fuel, savings, and driver control for fleet card security
Upgrade your Fleet Card’s Security Features 1024 653 Star Oilco

Upgrade your Fleet Card’s Security Features

Human Resource strategies to stop employees from stealing gas and diesel in your  business with these best practices.

 

Upgrade the security features on your Pacific Pride fuel cards with Star Oilco.

Are you looking to use a corporate fleet card to simplify your fuel buying while also knocking out your exposure to employee gas theft?
Star Oilco can make that easy for you.

Regardless of what system you choose, there are some organizational best practices, that when implemented, will be self-reinforcing in your organization. Simple little changes to how you approach fuel cards will greatly reduce any opportunity for theft.

Whether you use a Pacific Pride, Voyager, WEX, Comdata, Fuelman, or CFN corporate fleet card, you can take inventory of what you are currently doing and upgrade that process with these best practices.

Fleet Card Best Practice #1: Your current vendor should be able to assist you with securing your fleet card.  Call your current card provider and ask for a list of every active card, the last time it was used, the PINs associated with these cards, and security features associated. Check these against your next bill to see what cards aren’t being used.  Turn off a card not being used.

Fleet Card Best Practice #2: Annually take inventory of what cards you have and who is using them. Line up this list of active cards with your employees and make sure there isn’t a lost card out there.  Often a card policy implemented by Human Resources or your Dispatcher is a good way to track what employees have what cards.

On a regular basis, pass a clip board around asking each employee with a fleet card to confirm they still have that card and initial a confirmation that the card is still in their possession.  You would be surprised how individual cards can float between employees as it is easier than asking for a new card.

Fleet Card Best Practice #3: Audit your transactions regularly. This is a great project for your Account’s Payable to look through. Check against the card list of active cards looking for transactions that occur outside of normal business hours and days. Look for locations outside of your service area as well.  Also look for cards with more than one transaction in a day or large volumes as often that’s theft.

Fleet Card Best Practice #4: Put your Fleet Cards on the key ring dispatched with the vehicle, not with the driver. To limit a risk of a stolen card, restrict card ownership to management and maintenance. Everyone else should have cards directly connected with a vehicles license plate, so if that card goes missing it is obvious.

Fleet Card Best Practice #5: Program your cards for the vehicles they are attached to. You do this by connecting the card to the vehicle with a key ring. Then program the Fleet Card to only allow a specific fuel for that vehicle (regular, premium or diesel), limit the fill volume needed for that vehicle’s tank, and also limit the times of day that vehicle can get fuel. This reduces the opportunity for theft to exceed a small minimum and also makes theft obvious when the limits are hit.

Fleet Card Best Practice #6: it’s the 21st Century so manage in real time.  Make sure your Fleet Card provider can send an email to your Dispatch or fleet management in real time as the fuel cards are being used. Mistakes relating to efficiency or theft will be far more obvious and trainable if the transaction is observed the day of rather than a week. Instant feedback and communication is critical to change bad behavior of driver’s who mean to do well but may just have mad ea simple mistake.

Fleet Card Best Practice #7: Buy fuel by your vehicle not by an individual.  Move your Fleet Card program to a “Floating PIN” system. All modern Fleet Cards should offer this option. It enables you to attach the Fleet Card to the vehicle (all costs are tracked by the vehicle number and/or license plate on your invoices) and provide a unique and secret PIN to each of your driving employees.

If they use the card, their name appears on the bill next to their transaction. If PINs are kept secret and this is enforced, any theft or inappropriate fuel usage will be extremely obvious and accountable.

Fleet Card Best Practice #8: Adopt a “No Tolerance Fuel Theft Policy” as part of your hiring process, as well as every time you replace or issue new Fleet Cards. This is a policy managed by your Human Resources or Driver Compliance department. It is a form disclosing that any fuel cards or PINs related with cards are confidential and assigned to a person or vehicle.

Any use of a PIN will be the responsibility of the person who that PIN is associated with. A personal private PIN is their responsibility. If it is used, they are responsible and any observed fuel theft will be a first-time fire/termination offense. PINs are to be kept secret and if the PIN is known by someone else, it is their responsibility to let management know and get that personal PIN changed.

Fleet Card Best Practice #9: Negotiate a Cost-Plus basis for your fleet fueling costs. You should be able to have a frank conversation with your commercial fueling provider about where prices come from and how much margin they charge you. In many markets, fuel providers can even get a wholesale cost plus basis for fuel that beats the retail street mark ups. Pacific Pride and CFN stand alone commercial cardlocks are focused on this type of need. Often the savings for diesel customers is very substantial due to this model of pricing.

Fleet Card Best Practice #10: Negotiate the terms you need for the way you buy fuel. If you have a frank conversation about the terms and costs related with buying fuel, you’ll have more options that are available but not advertised. Industry standard for fuel sellers is either ten day terms with twice monthly or monthly billing. If you have the ability to pay faster, often deeper discounts are provided.

For extremely large customers daily billing could net thousands of dollars in savings a month. For operations relying on 45-day fuel charge reimbursements, talking to a fuel vendor about matching your fuel bill with a fleet’s Accounts Receivable can prevent huge cash-flow crunches.

Need to secure your fleet from fuel theft?

Call Star Oilco, we can make it easy.

Star Oilco can help you field all of these Best Practices. Our motto is “Keep it Simple” and we are there to make this easy. Feel free to reach out and see what Star Oilco can do for your fleet to upgrade it’s fleet fueling security.

To download a white paper on these Pacific Pride fuel card security feature best practices go HERE to our Stop Fuel Theft page.

 

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Star Oilco technician testing off-road diesel fuel quality with a funnel and filter on-site in Portland OR
Off-Road Diesel – When To Use And The Benefits 1024 768 Star Oilco

Off-Road Diesel – When To Use And The Benefits

What are the benefits and when can you use off-road diesel 

Off-road diesel excels with a higher cetane rating, enhancing engine performance and offering cost savings without taxes. However, it’s strictly for off-road vehicles like tractors and construction machinery. Using it in regular on-road cars is illegal, leading to fines and potential imprisonment. 

Green fuel nozzle for off-road diesel fueling

Advantages of off-road diesel 

Higher Cetane Rating: Igniting Efficiency 

Off-road diesel takes the lead with a significantly higher cetane rating. With quicker ignition, 20% fewer emissions, and an impressive 15% reduction in engine downtime. It’s not just fuel; it’s a performance booster. 

Engine Performance and Durability 

Crafted for off-road adventures, this fuel has specialized additives that provide extra lubrication and deliver approximately 12% improvement in engine efficiency. Better performance isn’t just a promise; it’s a measurable reality with a 10% boost in fuel economy. 

No Tax, More Savings 

On-road diesel carries higher taxes, supporting highway maintenance. The federal tax is the same across the U.S., but states can add charges based on volume or spending. In contrast, off-road fuel sidesteps federal and state excise taxes due to non-road use, as it causes no wear and tear on the roads, saving you more with each gallon. 

Cost-Effective Fueling 

Brace yourself for the financial magic – lower tax rates. Off-road diesel translates into tangible savings, averaging 25 to 50 cents per gallon. For businesses on the off-highway path, it’s not just about fuel; it’s about a budget-friendly journey with an estimated annual savings of $5,000 to $10,000. 

Legal Ease: Staying Compliant 

Dyed in red for a reason, off-road diesel isn’t just a visual standout; it’s a regulatory lifesaver. If you follow standard rules, avoid penalties, choose a fuel that aligns with the law while boasting a 0% penalty rate for unauthorized use. It’s your ticket to smooth, trouble-free operations. 

Dyed Diesel: A Dual Role in Heating 

Expand the use of dyed diesel beyond the road. If your furnace can run on heating oil, embrace dyed diesel for a potential 20% savings on heating costs. It’s not just a fuel choice; it’s a strategy for financial warmth. 

Off-road vehicle tire tracks in remote open terrain

On-Road Diesel vs Off-Road Diesel: Key Differences 

Let’s simplify the diesel dilemma. Both on-road and off-road options share the same chemical makeup, but here’s the twist.

Legal Roads: 

On-road Diesel: Legal for road vehicles, dispensed at gas stations. 

Off-road Diesel: Reserved for non-road machines (tractors, generators).  

Legal Boundaries: 

On-road Diesel: Mandatory for licensed road vehicles in the U.S. 

Off-road Diesel: Illegal for on-road vehicles; hefty fines ($100 to more than $1,000 for one gallon) for misuse, or you may lose your job. 

Color Code: 

On-road Diesel: Clear, available at local gas stations, often called clean or green fuel due to eco-friendliness. 

Off-road Diesel: Red-tinted, dyed for off-road identification. 

Sulfur Content: 

On-road Diesel: Adheres to low sulfur content standards set by the EPA ( (15 ppm sulfur). 

Off-road Diesel is intended for off-road machinery and may have a higher sulfur content (maximum 3000-5000 mg/kg). 

Tax Terrain: 

On-road Diesel: Subject to state excise and federal taxes, generally pricier. 

Off-road Diesel: Tax-exempt, cost-effective for industries like construction and agriculture. 

Availability Channels: 

On-road Diesel: Available for purchase at gas stations. 

Off-road Diesel: Sold through bulk distributors for industrial use. 

Diesel fuel flowing into a dark reflective liquid surface

Off-road Diesel: Who Qualifies? 

Off-road diesel isn’t for everyone, but it could be your fuel hero if you’re in specific industries. 

Who Can Use? 

  • Construction Industry: Heavy-duty champions like cranes, loaders, and excavators 
  • Agriculture Realm: From tractors to harvesters, it fuels the farm force. 
  • Specialty Equipment: Generators, heaters, and more, amplifying productivity. 

Exceptions: 

  • Separate Tanks for Equipment: If your vehicle has a dedicated tank for extra gear, like in reefer trucks, and it doesn’t power the motor, you’re in. 
  • Emergency Saviors: In state-declared emergencies (severe weather or disasters), using off-road diesel on public roads might get a temporary nod. Rules vary, so check your state’s stance.  

Who Are Not Allowed To Use? 

  • Regular On-road Vehicles: Cars, SUVs, and standard trucks hitting public roads or any vehicle having the license to move on the road. 

Ultimately, on-road powers our daily commute, but off-road, dyed in red, proves the unsung hero for industries, offering substantial savings. Portland’s and Pacific Northwest’s off-road fuel suppliers have trustworthy reputations as fuel suppliers.  

Legal boundaries are crucial – fines loom for misusing off-road diesel. So, whether on legal roads or off, choose wisely, stay compliant, and drive on with informed decisions and smoother rides ahead! 

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Weekly Fuel Market Report – Aug 2nd – Aug 8th, 2026 150 150 Star Oilco

Weekly Fuel Market Report – Aug 2nd – Aug 8th, 2026

Fuel Market Report by Star Oilco Banner
Portland and Washington gas price trends compared with U.S. average and crude oil prices, July to August 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 8/8/26

Wholesale LowWholesale Avg
E10$3.47$3.56
B5$3.78$3.91
B20$3.73$3.82
R99$3.51$3.60

Average Retail Prices 8/8/26

NationalOregonWashington
Regular Gasoline$4.01$4.67$5.14
Diesel$5.32$5.49$6.15

Taxes

FederalState: ORLocalState: WA
Gas$0.184$0.40$0-.13$0.554
Diesel$0.244$0.40$0-.13$0.584

Portland Retail Fuel Price Variance

Average fuel prices for regular, midgrade, premium gasoline and diesel in Oregon, August 2026

Fuel Market News

Fuel prices were in a state of stagnation with slight upticks this past week as crude oil prices closed the week at the same price it opened five days prior. WTI opened on Monday around $80.34/barrel and closed Friday around $79.94. Drivers in the Portland area are still seeing gas around $4.70/gal & diesel over $5.62/gal, $0.55/gal higher than they were last August. In Seattle, gas prices are $5.42/gal with diesel hovering around $6.37/gal, $0.65/gal higher than they were last August. When compared to their state averages, both Seattle and Portland are over $0.45/gal higher.

At the pump, the national gas price averages have actually declined from $4.09 to $4.01 over the past week, but the PNW remains considerably higher. Oregon averages $4.67, while Washington sits near $5.14. National diesel remains elevated around $5.32.

WTI Crude is trading around $81.86/barrel as of the 11th. There have been no announced military strikes occurring within the last 14 days between the U.S & Iran. Although much still remains unclear about the timeline of the war and the future of geopolitical climates in the near future.

fuel-market-report-star-oilco-5-18-24

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 currently hovering just below $82/barrel, at a current price of  $81.86/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 $81.86/barrel compared to $80.41/barrel last week and $79 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.

Set up your R99 Mobile Fueling Onsite Service in Portland Today Including Dyed Untaxed R99.

Give Us A Call Today

For other news in the fuel market:

https://gasprices.aaa.com/?state=OR

https://www.gasbuddy.com/charts

Join the Fuel Market Report newsletter for your weekly fill of updates!

Weekly Fuel Market Report – July 27th-31st, 2026 150 150 Star Oilco

Weekly Fuel Market Report – July 27th-31st, 2026

Fuel Market Report by Star Oilco Banner
Portland and Washington gas price trends compared with U.S. average and crude oil prices in 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 7/31/26

Wholesale LowWholesale Avg
E10$3.45$3.58
B5$3.79$3.92
B20$3.71$3.83
R99$3.53$3.62

Average Retail Prices 7/31/26

NationalOregonWashington
E10$4.08$4.68$5.13
B5$5.36$5.54$6.19

Taxes

FederalState: ORLocalState: WA
Gas$0.184$0.40$0-.13$0.554
Diesel$0.244$0.40$0-.13$0.584

Portland Retail Fuel Price Variance

Oregon average gasoline and diesel prices for regular, midgrade, premium and diesel fuel in 2026

Fuel Market News

This past week brought higher crude oil prices followed by higher diesel prices and fairly stagnant gas prices. From 07/27 – 07/31, WTI Crude jumped $5.41/barrel. This was reflected in diesel prices jumping over $0.09/gal. Drivers in the Portland area are still seeing gas around $4.900/gal & diesel over $5.65/gal, both over $0.60/gal higher than they were last August. In Seattle, gas prices are $5.43/gal with diesel hovering around $6.41/gal, both over $0.70/gal higher than they were last August. 

As of 08/03/26 WTI Crude is trading around $80.41/barrel, down from the previous week. Tensions between Iran & the U.S have tapered off slightly this week, with no announced military strikes occurring within the last 9 days. The Strait of Hormuz is still closed. The Trump administration has yet again said it will announce new details of renewed peace talks within the next 48 hrs. Crude prices have flattened out the past few days and may continue to this week, fuel prices should remain mostly stagnant this week if tempers remain calm between the U.S & Iran.

fuel-market-report-star-oilco-5-18-24

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 currently hovering just above $80/barrel, at a current price of  $80.41/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 $80.41/barrel compared to $85.56/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.

Set up your R99 Mobile Fueling Onsite Service in Portland Today Including Dyed Untaxed R99.

Give Us A Call Today

For other news in the fuel market:

https://gasprices.aaa.com/?state=OR

https://www.gasbuddy.com/charts

Join the Fuel Market Report newsletter for your weekly fill of updates!

Two semi-trucks driving on a highway with trees in the background
Weekly Fuel Market Report – July 20th-27th, 2026 1024 683 Star Oilco

Weekly Fuel Market Report – July 20th-27th, 2026

Fuel Market Report by Star Oilco Banner
Portland and Washington gas price trends compared with U.S. average and crude oil prices in 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 7/31/26

Wholesale LowWholesale Avg
E10$3.45$3.58
B5$3.79$3.92
B20$3.71$3.83
R99$3.53$3.62

Average Retail Prices 7/31/26

NationalOregonWashington
E10$4.08$4.68$5.13
B5$5.36$5.54$6.19

Taxes

FederalState: ORLocalState: WA
Gas$0.184$0.40$0-.13$0.554
Diesel$0.244$0.40$0-.13$0.584

Portland Retail Fuel Price Variance

Oregon average gasoline and diesel prices for regular, midgrade, premium and diesel fuel in 2026

Fuel Market News

This past week brought higher crude oil prices followed by higher diesel prices and fairly stagnant gas prices. From 07/27 – 07/31, WTI Crude jumped $5.41/barrel. This was reflected in diesel prices jumping over $0.09/gal. Drivers in the Portland area are still seeing gas around $4.900/gal & diesel over $5.65/gal, both over $0.60/gal higher than they were last August. In Seattle, gas prices are $5.43/gal with diesel hovering around $6.41/gal, both over $0.70/gal higher than they were last August. 

As of 08/03/26 WTI Crude is trading around $80.41/barrel, down from the previous week. Tensions between Iran & the U.S have tapered off slightly this week, with no announced military strikes occurring within the last 9 days. The Strait of Hormuz is still closed. The Trump administration has yet again said it will announce new details of renewed peace talks within the next 48 hrs. Crude prices have flattened out the past few days and may continue to this week, fuel prices should remain mostly stagnant this week if tempers remain calm between the U.S & Iran.

fuel-market-report-star-oilco-5-18-24

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 currently hovering just above $80/barrel, at a current price of  $80.41/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 $80.41/barrel compared to $85.56/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.

Set up your R99 Mobile Fueling Onsite Service in Portland Today Including Dyed Untaxed R99.

Give Us A Call Today

For other news in the fuel market:

https://gasprices.aaa.com/?state=OR

https://www.gasbuddy.com/charts

Join the Fuel Market Report newsletter for your weekly fill of updates!

3D illustration of a gas pump icon made from green leaves symbolizing biofuel
Renewable Diesel or Biodiesel for Trucks? 1024 753 Star Oilco

Renewable Diesel or Biodiesel for Trucks?

The Fuel Revolution

In the realm of sustainable energy, the race for cleaner and more efficient fuels is a top of mind priority for the majority of the industry. As heavy-duty trucks continue to dominate our highways and play a pivotal role in transporting goods across the country, the choice of fuel is paramount. The two most common fuels used throughout the PNW for greener transportation are: Renewable Diesel and Biodiesel. In this blog, we’ll take a deeper look into the power generation of these fuels, highlighting the key differences between them and citing relevant studies that illuminate their qualities. 

3D illustration of a gas pump icon made from green leaves symbolizing biofuel

Renewable Diesel: The New Age Wonder Fuel 

Renewable Diesel, often referred to as “green diesel,” or R99 is a high-quality alternative fuel that shares many characteristics with traditional diesel. However, it is derived from renewable feedstocks, such as vegetable oils, animal fats, and waste greases, through a process called hydrotreating. This process not only produces a cleaner-burning fuel but also eliminates impurities and aromatics found in traditional diesel. The result is a fuel with significantly lower emissions and enhanced performance. 

Lower Emissions:

Perhaps the most significant advantage of renewable diesel is its environmental footprint. Studies, like the one conducted by the National Renewable Energy Laboratory (NREL), have shown that renewable diesel can reduce greenhouse gas emissions by up to 80% compared to standard diesel. This drastic reduction in emissions makes it a vital fuel in the efforts to combat climate change. 

Better Fuel Economy:

Renewable diesel boasts a higher energy content than biodiesel, allowing vehicles to travel more miles per gallon. A study by the California Air Resources Board (CARB) demonstrated that renewable diesel can improve fuel efficiency by 5-7% compared to biodiesel. For the trucking industry, this translates to significant cost savings. 

Compatibility:

One of the standout features of renewable diesel is its compatibility with existing diesel engines and infrastructure. Heavy-duty trucks can make the switch to renewable diesel seamlessly, without requiring any engine modifications or special storage facilities. 

Reduced Maintenance:

Studies like the one from the University of California, Riverside, have indicated that renewable diesel can lead to reduced engine wear and lower maintenance costs. The fuel’s superior lubricity and cleaner combustion help extend the lifespan of engine components. 

In 2015, NREL ran a study in partnership with the UPS and the Clean Cities Coilation to compare the fuel economy and overall impact of renewable diesel compared to petrelem diesel in 12 USP delivery vehicles operating out of Houston. The results of this study were that renewable diesel reduced carbon emissions by 4.2% comparatively to petroleum diesel. This finding is a result of the properties of renewable diesel given its higher mass-based heating value and lower carbon-hydrogen ratio. 

The UPS is one of the largest user of renewable diesel in the world. In 2015 UPS announced their plans to purchase over 40 million gallons of the sustainable fuel over the next three years (2015-2018). UPS was supplied this renewable diesel by Solazyme (now known as TerraVia).  

Below is a breakdown of the vehicles used in the study.

Vehicle specifications for package car and tractor used in renewable diesel fuel research

BIODIESEL

Biodiesel, often derived from vegetable oils or animal fats through a process called transesterification, has been around for a while and has made significant strides in reducing emissions compared to traditional diesel. However, when pitted against renewable diesel, there are some critical differences.

The Limitations of Standard Biodiesel

Emissions:

While biodiesel is undoubtedly cleaner than traditional diesel, studies like the one published in the Journal of Environmental Science and Technology show that its greenhouse gas reduction potential is not as remarkable as that of renewable diesel. The production process of biodiesel also consumes substantial energy, offsetting some of its environmental benefits. 

Performance:

Biodiesel’s energy content is lower than that of renewable diesel, resulting in decreased fuel efficiency. Research from the University of Nevada, Reno, indicates that biodiesel can lead to a 3-10% reduction in fuel economy compared to renewable diesel. 

Cold Weather Performance:

Biodiesel has a higher cloud point and gel point than renewable diesel, making it less suitable for cold-weather operations. Trucks operating in regions with harsh winters may encounter issues with fuel gelling, potentially causing operational disruptions. 

Compatibility Challenges:

Biodiesel’s higher viscosity can lead to filter plugging and injector coking in some older diesel engines. This issue necessitates additional maintenance and potentially costly modifications. 

Close-up of green, yellow, and blue fuel nozzles at a diesel pump station

The Road Ahead: Renewable Diesel’s Triumph 

In the comparison of Renewable Diesel vs. petroleum diese for heavy-duty trucks, renewable diesel emerges as the clear winner. Its lower emissions, superior fuel economy, compatibility with existing infrastructure, and reduced maintenance requirements make it a game-changer in the transportation industry’s quest for sustainability. 

Studies across the board indicate that renewable diesel outperforms standard biodiesel in terms of environmental benefits and cost savings. For heavy-duty truck operators looking to reduce their carbon footprint and improve their bottom line, renewable diesel is undoubtedly the fuel of the future. 

In the quest for a greener future, renewable diesel has firmly taken the lead. Its remarkable reduction in emissions, better fuel economy, and seamless integration into existing diesel infrastructure make it the go-to choice for heavy-duty truck operators. While standard biodiesel has made commendable progress in reducing emissions, renewable diesel emerges as the winner in the arena of cleaner and more efficient fuels. 

The studies quoted in this blog are just the tip of the iceberg, illustrating the overwhelming evidence in favor of renewable diesel. As we move forward in our pursuit of sustainable transportation, it’s clear that renewable diesel will play a pivotal role in driving us toward a cleaner, more environmentally friendly tomorrow. 

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Two semi-trucks driving on a highway with trees in the background
Weekly Fuel Market Report – July 12-18, 2026 1024 683 Star Oilco

Weekly Fuel Market Report – July 12-18, 2026

Fuel Market Report by Star Oilco Banner
Oregon and Washington gas prices compared with U.S. average and crude oil prices

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 LowWholesale 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

NationalOregonWashington
E10$4.00$4.65$5.11
B5$5.11$5.49$6.05

Taxes

FederalState: ORLocalState: WA
Gas$0.184$0.40$0-.13$0.554
Diesel$0.244$0.40$0-.13$0.584

Portland Retail Fuel Price Variance

Oregon average prices for regular, midgrade, premium gasoline and diesel fuel

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.

fuel-market-report-star-oilco-5-18-24

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.

Set up your R99 Mobile Fueling Onsite Service in Portland Today Including Dyed Untaxed R99.

Give Us A Call Today

For other news in the fuel market:

https://gasprices.aaa.com/?state=OR

https://www.gasbuddy.com/charts

Join the Fuel Market Report newsletter for your weekly fill of updates!

Star Oilco truck fueling a large generator during winter conditions
Diesel Backup Tanks – Treating and Refilling 1024 768 Star Oilco

Diesel Backup Tanks – Treating and Refilling

Here’s good advice if you are relying on diesel as a back up fuel in the Pacific NW.

Now is the time to refill and treat your back up fuel tanks.

Diesel as a back up fuel

Quite a bit of our business at Star Oilco is fueling back-up generators, emergency water pumps, refrigerated trailers and other long term off-road diesel storage requirements. In the Pacific Northwest, biodiesel blending is required by state laws and you need to take an extra duty of care when storing diesel as a back-up fuel.

This means that most off-road diesels and heating oils are ultra low sulfur diesel containing a small quantity of biodiesel.  That means long term storage requires a proactive approach.  You can’t just hope and wait to see what the fuel begins to look after years of storage.

Technical advice from Government Fleet Magazine to help you with storing diesel fuel.

Here is an article from Government Fleet Magazine on the subject which runs through the specifics of long term storage and what causes fuel to degrade when stored.  Government Fleet Magazine – How to Maintain Stored Diesel Fuel.

Star Oilco has also worked up a PDF check list on how to verify if your fuel is in need of freshening or is still in emergency ready shape.  If you are a customer of ours, we will deliver a laminated card version to keep next to your back up generator. If you are not a customer (or outside of our service area) drop us a message below and we will gladly email you the PDF.

For our customers, we recommend that you check the tank bottom fuel quality on an annual basis to make sure the product looks good. If the tank has sat for years and is dark in color (good diesel is bright and transparent – you will notice if it is in bad shape), we recommend pumping the tank out at least partially and replacing with fresh fuel. Often you can also hugely improve the quality of the fuel by polishing the fuel. Polishing is when you circulate fuel from the bottom of the tank through a pump, filter repeatedly in order to remove any sediment or growth from the fuel, and then place this fuel back in the same tank.

Look at your fuel for a bright and clear color.

For stored fuel, you also want to make sure it is stabilized and contains a biocide. Stabilizers prevent the oxidation of the fuel and prevent the effect of metals like lead, copper and zinc, which can react and degrade fuel. For heating oil systems with a return line, for instance, the fuel is flowing through a copper line to the furnace and then back to the tank in a return line.

Use additives designed to prolong the life of your emergency diesel fuel.

Biocides prevent the growth of biological activity in the tank. In scenarios whcontaminated_dieselere micro-organisms like algae, bacteria, yeasts, and other bugs are growing in your fuel, biocides can kill this growth. It is still important to remove the residual grit and other contaminants that are the hallmark of bugs growing in your tank. Usually you remove them by filtration or total turn over of the fuel. If your tank absolutely has to be clean, you can contract a tank professional to enter the tank and physically clean the tank bottom or reline the tank with either fiberglass or an epoxy resin.

Water in diesel destroys fuel quality rapidly. Check your tank for water every fall and spring.

In events where water finds its way into your storage tank, that can also be corrected by pumping the tank bottom. Additionally, you want to put in an absorbent material designed to absorb water and not fuel. If your long term storage tank has water and you are not planning to burn 100% of the fuel in the near future, DO NOT add anything that removes water by distributing into the fuel. Adding a “fuel drier” that actually pushes the water into solution with the diesel will worsen the long term quality of your fuel, not improve it. That water is where bugs find their home to grow in fuel.

Star Oilco will test your fuel at no charge if you have an open account.

Feel free to call us with any questions you may have about long term storage of diesel. Star Oil can also deliver treated diesel ready for long term storage complete with Hydrotex PowerKleen Premium Diesel additive to improve the long term storage quality of your fuel. For biocide, we use Valvtect BioGuard fuel microbiocide to kill any possible biological activity and prevent any chance of it starting.

Diesel Testing and Storage in Portland

If you have a long term diesel storage tank and you are in the Portland, Oregon area, we are here to test your fuel.  Make sure your diesel is there for you when disaster strikes.

Tank Testing Form

  • This field is for validation purposes and should be left unchanged.

 

For more reading on diesel fuel quality assurance:

Fight Humbug in your Diesel Tank (using Valvtect Bioguard Plus 6 to stabalize your stored diesel)

Diesel Fuel Technical Review (an easy to read and free text book on diesel fuel)

Emergency Back Up Generator Fuel Quality (designed to provide a checklist to help Facility Managers keep those back up generators ready for emergency action)

Using Desicant Breathers to keep diesel fuel dry and clean (an introductory primer on desicant breathers and how they can be used to keep long term diesel storage drier and cleaner)

Using Diesel Filters to clean up your diesel fuel quality (an introductory primer on using aggressive filtration in line with diesel fuel dispensing for fuel quality assurance)

Bio-diesel and Feed-stock samples at REG
What Types of Feedstock Can Be Used To Make Biodiesel? 700 525 Star Oilco

What Types of Feedstock Can Be Used To Make Biodiesel?

               What Types Of Feedstock Can Be Used To Make Biodiesel?

        To answer what feedstocks can be used to make biodiesel we need to first answer:  What is Biodiesel?

Biodiesel is created through a process called transesterification.  Transecterification is when an alcohol such as methanol or ethanol is added to an oil or fat.  This creates methyl esters and glycerin.  Methyl esters is the scientific name of Biodiesel.  Because biodiesel needs a fat or an oil to start with, this fuel can can be created with any number of feedstocks.  If you would like to learn more about Biodiesel check out this for more questions about biodiesel.

According to the U.S. Office of Energy Efficiency & Renewable Energy:

“A feedstock is defined as any renewable, biological material that can be used directly as a fuel, or converted to another form of fuel or energy product. Biomass feedstocks are the plant and algal materials used to derive fuels like ethanol, butanol, biodiesel, and other hydrocarbon fuels. Examples of biomass feedstocks include corn starch, sugarcane juice, crop residues  such as corn stover and sugarcane bagasse, purpose-grown grass crops, and woody plants. “

Renewable Energy Group (REG) performed a study in 2009 with the support of the Iowa Power Fund Board and the Iowa Office of Energy Independence that tested 36 individual feed-stocks.  Star Oilco will be spotlighting these feedstocks through our blog and our social media. The full report can be found on their site if you would like to read ahead or explore the results in more depth. We hope you find these as interesting as we did!

Bio-diesel and Feed-stock samples at REG

Above photo taken at REG headquarters in Ames, Iowa.

This first blog highlights the following 2 types of feed-stock:

                                                            Babussa Oil & Beef Tallow

Babassu Oil

Attalea speciosa

Babassu oil is extracted from the seeds of the babassu palm tree, Attalea speciosa, an evergreen tree growing to 30 m (98ft) by 20 m (65ft) at a slow rate. It is hardy to zone (UK) 10 and is not frost tender. The flowers are pollinated by bees and other insects. The tree is common in Brazil, Mexico, and Honduras; it grows well in areas typically cultivated for coconut or palm. The kernels contain 60-70% oil, appear transparent, and smell like walnuts. In its natural form the oil is liquid at 20-30°C (68 – 86°F). The seeds are edible and the oil is used in margarine, soaps, detergents, lamp oil and skin products. Oil extraction results in a cake containing 15-25% protein (depending on the shell content), which is a valuable feedstuff.

In February 2008, Babassu palm oil and coconut oil were blended with jet fuel to power a Virgin Atlantic Boeing 747 during a test flight from London’s Heathrow to Amsterdam.

Babassu oil is extracted from the seeds of the babassu palm treeBabassu Oil Chart

Beef Tallow

Tallow is a rendered form of the waste fats and greases from processing beef. Rendering is a process by which lipid material is separated from meat tissue and water under heat and pressure. Beef tallow is primarily made up of triglycerides and it is solid at room temperature. The B100 that is created from this source has a very high cloud point. “Cloud point is the temperature at which wax (paraffin) begins to separate when oil chilled to a low temperature, and it serves as an important indicator of practical performance in automotive applications in low temperatures.”  (Source)  The other uses for tallow include animal feed, soap, cooking and in the past, candles.

Beef Tallow Animal tissue is converted to tallow using rendering; a process by which lipid material is separated from meat tissue and water under heat and pressure.Beef Tallow Chart

 

Article 2 Feedstock : Borage Oil & Camelina Oil

Article 3 Feedstock : Algae Oil & Canola Oil.

Article 4 Feedstock : Castor Oil and Choice White Grease

Article 5 Feedstock : Coconut Oil and Coffee Oil

Article 6 Feedstock : Evening Primrose Oil and Fish Oil

Article 7 Feedstocks : Hemp Oil & High IV and Low IV Hepar

Article 8 Feedstocks : Jatropha Oil, Jojoba Oil, & Karania Oil

Article 9 Feedstocks : Lesquerella Oil & Linseed Oil

Article 10 Feedstocks – Moringa Oil & Neem Oil

Article 11 Feedstocks – Palm Oil & Perilla Seed Oil

Article 12 Feedstocks – Poultry Fat & Rice Bran Oil

Article 13 Feedstocks – Soybean Oil & Stillingia Oil

Article 14 Feedstocks – Sunflower Oil & Tung Oil