Star Oilco

OPEC+ Production Cuts

Crude oil is trading just below $70, at a current price of $67.10/barrel. This is $0.49/barrel higher 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 $67.10/barrel compared to $66.61/barrel last week and $69 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.

For other news in the fuel market:

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

July 18, 2025

Diesel Exhaust Fluid (DEF) Quality, Storage, and Future Considerations https://staroilco.net/wp-content/uploads/2025/07/1-1024x1024.png 1024 1024 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png July 18, 2025 July 23, 2025

Diesel Exhaust Fluid (DEF) Quality, Storage, and Future Considerations

Diesel Exhaust Fluid (DEF) is a crucial component in modern diesel engines equipped with Selective Catalytic Reduction (SCR) systems. While many fleet operators are familiar with its basic function of reducing nitrogen oxide (NOx) emissions, understanding the intricacies of DEF quality, storage, supply chain considerations, and system maintenance can help businesses optimize efficiency and avoid costly repairs. At Star Oilco, we provide fleets with the knowledge and resources needed to navigate these complexities. This guide will explore the advanced aspects of DEF, from maintaining quality and ensuring proper storage to understanding emerging trends in emissions technology.

Understanding DEF Quality and Purity

The quality of DEF plays a significant role in the performance and longevity of an SCR system. DEF must adhere to ISO 22241 standards, which regulate its composition, concentration, and purity. Using non-compliant DEF can lead to injector clogging, crystallization, and system failures. Even small amounts of contaminants such as dirt, fuel, or water can negatively impact DEF performance and damage expensive SCR components.

To ensure DEF meets the necessary standards, regular testing should be performed. Refractometers can measure the urea concentration to verify the correct 32.5 percent solution. DEF testing strips can detect impurities, while more advanced lab analysis can help diagnose performance issues related to fluid quality. Purchasing DEF from a reliable, ISO-certified supplier is the best way to avoid contamination and maintain compliance.

DEF Storage Best Practices to Prevent Contamination

Proper storage is essential for maintaining DEF integrity. Temperature control is a key factor, as DEF should be stored between 12 and 86 degrees Fahrenheit to prevent degradation. Freezing does not damage DEF, but extreme heat can cause evaporation and reduce its effectiveness. To minimize exposure to environmental factors, DEF should be stored in opaque, UV-resistant containers to prevent sunlight from breaking down its chemical properties.

Choosing the right storage material is also critical. DEF should be kept in plastic or stainless steel containers, as certain metals such as aluminum, copper, and zinc react with DEF, leading to contamination. Additionally, keeping storage containers sealed will prevent air exposure, which can introduce dust or debris. Managing inventory efficiently is another important aspect of storage. DEF typically has a shelf life of 12 months, but in warmer climates, its lifespan may be reduced to six months. Using a first-in, first-out (FIFO) inventory approach ensures that older stock is used before it degrades.

How Temperature Affects DEF Performance

Temperature fluctuations can significantly impact DEF performance. In cold climates, DEF freezes at 12 degrees Fahrenheit, causing operational challenges for fleets. While frozen DEF does not degrade, it must be properly thawed before use. Heated DEF dispensers and insulated storage solutions can help prevent freezing issues in extreme weather conditions. It is important to avoid adding water to thaw frozen DEF, as this disrupts the precise urea concentration and compromises its effectiveness.

On the other end of the spectrum, high temperatures can cause DEF to degrade. Exposure to prolonged heat above 86 degrees Fahrenheit can lead to evaporation and an increase in urea concentration, which may result in improper dosing and SCR malfunctions. Storing DEF in shaded or climate-controlled areas can help mitigate heat-related degradation. Seasonal changes also impact DEF consumption rates, with colder temperatures often leading to increased DEF usage as SCR systems adjust to lower combustion efficiencies.

DEF Supply Chain Considerations

DEF relies on a stable global urea supply, making it susceptible to market fluctuations. Since urea is also used in fertilizer production, shifts in agricultural demand, export restrictions, and production slowdowns can lead to price increases and supply shortages. In times of high demand, fleets may struggle to secure sufficient DEF, leading to increased costs and operational challenges.

To avoid supply disruptions, fleet operators should consider strategic sourcing options. Establishing relationships with reliable DEF suppliers and securing bulk deliveries can help mitigate the risk of shortages. On-site DEF storage solutions can also provide a buffer against market volatility, allowing businesses to maintain an adequate supply without relying on just-in-time purchasing. Planning ahead for seasonal or industry-wide fluctuations in DEF availability can help fleets remain operational without unexpected expenses.

The Economics of DEF for Fleet Operations

DEF consumption is directly tied to diesel fuel usage, with most fleets using approximately two to three percent DEF per gallon of diesel burned. Understanding this ratio allows businesses to budget accordingly and monitor costs. Optimizing fuel efficiency can also lead to lower DEF usage, as well-maintained engines operate more efficiently and require less NOx reduction.

Using high-quality DEF prevents costly maintenance issues. Non-compliant or contaminated DEF can cause injector clogging, pump failures, and SCR system malfunctions, resulting in expensive repairs and downtime. Some manufacturers void engine warranties if improper DEF is used, making it even more important to source DEF from a certified provider. Preventative maintenance and regular DEF quality testing can help fleets avoid hidden costs associated with poor-quality fluid.

DEF System Failures: Causes and Prevention

Common DEF system failures can be traced back to improper handling, storage, and contamination. Crystallization, for example, occurs when DEF is exposed to air and loses moisture, leaving behind solid urea deposits that can clog injectors and sensors. Contaminated DEF can lead to buildup in the SCR system, affecting performance and triggering warning lights that may lead to vehicle derating or shutdown.

Preventing DEF system failures requires proactive maintenance. Regularly flushing DEF tanks, inspecting nozzles for blockages, and ensuring proper storage conditions can help prevent these issues. Using ISO-certified DEF from a trusted supplier also reduces the risk of contamination. Scheduled maintenance checks and SCR system inspections allow fleet operators to address minor issues before they escalate into costly repairs.

The Future of DEF and Emissions Technology

As emissions regulations continue to evolve, the role of DEF in diesel technology is likely to expand. The Environmental Protection Agency (EPA) continues to push for stricter NOx reduction targets, which may lead to advancements in SCR systems and increased DEF usage. Some manufacturers are exploring alternative NOx-reduction methods, such as ammonia-based catalysts or hydrogen fuel cell technology, but DEF remains the most effective solution for modern diesel engines.

While DEF will remain a key component of emissions compliance for the foreseeable future, fleet operators should stay informed about regulatory changes and advancements in emissions technology. Investing in high-quality DEF and optimizing storage and usage practices will help businesses stay ahead of evolving environmental standards.

DEF Myths and Misconceptions

Several misconceptions about DEF persist, leading to improper use and maintenance practices. One common myth is that water can be added to DEF in emergencies. This is incorrect, as dilution disrupts the precise 32.5 percent urea concentration, rendering it ineffective and potentially damaging the SCR system.

Another common belief is that DEF improves fuel efficiency. While DEF itself does not enhance fuel economy, it allows for optimized engine performance by reducing backpressure in the exhaust system. This results in better combustion efficiency, which can lead to slight improvements in fuel usage.

A final misconception is that DEF does not expire. In reality, DEF has a shelf life and degrades over time, especially when exposed to heat or contaminants. Proper storage and inventory management are essential to maintaining DEF quality.

How Star Oilco Ensures High-Quality DEF for Customers

Star Oilco provides high-quality, ISO 22241-certified DEF to ensure fleets remain compliant and operational. Our bulk DEF delivery services allow businesses to secure a reliable supply, reducing the risk of shortages and minimizing costs. We also offer on-site DEF storage solutions to help fleets manage their inventory efficiently.

In addition to supplying high-quality DEF, we assist customers with DEF system maintenance, testing, and best practices to ensure long-term reliability. With our commitment to quality and service, Star Oilco is the trusted partner for businesses looking to optimize their DEF usage and reduce the risk of SCR system failures.

We also help customers stay up to date on regulatory changes and evolving DEF standards to ensure full compliance. Whether you’re a small fleet or a large operation, our team is ready to tailor a DEF solution that meets your specific needs.

For more information on our DEF solutions, contact Star Oilco today to learn how we can help keep your fleet running efficiently while meeting emissions compliance standards.

Frequently Asked Questions

What exactly does DEF do in my diesel engine?

DEF (Diesel Exhaust Fluid) is injected into the exhaust stream of modern diesel engines equipped with Selective Catalytic Reduction (SCR) systems. It reacts with exhaust gases to convert harmful nitrogen oxides (NOx) into harmless nitrogen and water vapor. This process dramatically cuts emissions, keeping your fleet compliant with strict EPA standards.

How long does DEF last in storage?

Stored properly, DEF generally has a shelf life of up to 12 months. However, exposure to heat can shorten this to 6 months or less, especially in warmer climates. That’s why using a first-in, first-out (FIFO) system is crucial. It ensures older DEF is used before it degrades, protecting your SCR systems from concentration issues that could cause costly repairs.

How much DEF does my fleet actually use?

Most fleets use about 2-3% DEF relative to diesel fuel burned. That means for every 100 gallons of diesel, you’ll consume roughly 2 to 3 gallons of DEF. Knowing this ratio helps you forecast DEF needs alongside your fuel budgets.

Does DEF improve my fuel economy?

Not directly. DEF doesn’t boost fuel economy on its own. However, by reducing exhaust backpressure through the SCR process, your engine can operate more efficiently, which may lead to slightly better combustion and fuel performance over time.

Can DEF expire even if it’s stored properly?

Yes. DEF naturally degrades over time, even under ideal conditions. Keeping it cool, sealed, and protected from UV rays slows this process, but eventually it ages out. That’s why FIFO inventory management and routine checks of DEF age are important to avoid using degraded product.

Why does DEF usage increase in colder weather?

Colder temperatures can make diesel engines burn less efficiently, leading the SCR system to dose more DEF to keep NOx emissions in check. This seasonal variance is normal, but it means winter months may see DEF usage spike slightly higher than your average.

How might future EPA emissions standards impact my DEF usage?

Regulations on NOx emissions are only getting tighter. This means future SCR systems could demand even more precise DEF dosing, or fleets might see an overall increase in DEF consumption. Staying committed to quality DEF, proper storage, and system maintenance now will help keep you ahead of regulatory curves and avoid penalties later.

How does Star Oilco help prevent costly DEF-related issues?

We supply only ISO-certified DEF, deliver it in bulk or packaged form, and provide on-site storage solutions to keep your operations protected. Our team also supports customers with DEF quality testing, maintenance guidance, and proactive system checks to help you avoid breakdowns, warranty headaches, and surprise costs.

July 16, 2025

Fuel Market Report: July 6th – July 12th, 2025 https://staroilco.net/wp-content/uploads/2023/12/trailer-trucks-driving-road-surrounded-by-beautiful-green-trees-1024x683.jpg 1024 683 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png July 16, 2025 July 16, 2025

Fuel Market Report: July 6th – July 12th, 2025

Screenshot 2025-07-14 210818 | Star Oilco

Wholesale Price Average 7/12/25

	Wholesale Low	Wholesale Avg
E10	$2.45	$2.58
B5	$3.23	$3.31
B20	$3.25	$3.35
R99	$3.29	$3.36

Average Retail Prices 7/12/25

	National	Oregon	Washington
E10	$3.15	$4.00	$4.40
B5	$3.70	$4.50	$5.00

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

Oregon Fuel Price Variance

Screenshot 2025-07-14 213454 | Star Oilco

Fuel Market News

Fuel prices trickled up this week, with street retail prices dropping slightly and rack averages going up about $0.05/gal. Portland rack averages for gas jumped $0.07/gal, while B5, B20 & R99 diesel averages moved up less than $0.03/gal. AAA analysts predict prices at the pump will continue to fall as tensions calm in the Middle East and no hurricanes are expected to hit the Golf Coast in the coming weeks. According to the EIA, “Gasoline production dipped last week, averaging 9.6 million barrels per day, compared to 10.1 million barrels the previous week”. Although this dip may not seem extreme, it is surprising coming off a record-setting 4th of July with traveling trends reaching all-time highs. With inventories relatively steady, we should see prices at the pump hover around their current price with some slight dips into August.

Oregonians may be in store for higher diesel prices this year with the end of Blenders Tax Credits, the introduction of the Producers Tax Credit & the Oregon Climate Protection Program going into 2025. For more on this report, visit the link below.

2025 Fuel Market Outlook: Oregon

Reasons For Price Variance

OPEC+ Production Cuts

Crude oil is trading just below $70, at a current price of $66.61/barrel. This is $1.39/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 $66.61/barrel compared to $68.00/barrel last week and $70 a year ago.

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.

For other news in the fuel market:

(1) Renewable Diesel – Alternative Fuels Data Center.

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

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

July 14, 2025

How Renewable Diesel Is Made https://staroilco.net/wp-content/uploads/2023/09/how-renewable-diesel-is-made-portland-or-.png 940 788 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png July 14, 2025 July 19, 2025

How Renewable Diesel Is Made

Renewable diesel is a type of biofuel called biomass based diesel

How Renewable Diesel is Made

How is Renewable Diesel made?

Very similarly to fossil fuel diesel.

In the 1990’s the world started moving towards an ultra-low sulfur diesel fuel specification. Over decades we have arrived to where even marine fuels are running a lower sulfur fuel. The technology used to achieve this is hydrotreating the distilled crude oils. By use of hydrocrackers, the molecules of petroleum crude oils are cracked and reformed into ultra-low sulfur diesel. The use of hydrotreating diesel fuels has enabled the removal of sulfur and then enabling the use of emissions systems that not only reduce acid rain but also smog causing emissions like NOx. This advanced petroleum refining chemistry technology is the forebearer to today’s renewable diesel technologies. The technical chemistry of taking a feedstock, cracking the molecules and reforming them into a final product is where renewable diesel comes from.

Renewable diesel is a type of biofuel that is chemically similar to petroleum diesel and can be used in any diesel engine. It can be produced from various feedstocks, such as vegetable oils, animal fats, waste cooking oil, and algae. Renewable diesel can reduce greenhouse gas emissions and improve air quality compared to petroleum diesel⁵. The inputs for renewable diesel are typically low value but high btu value feedstocks. From virgin soy bean and canola oils to the lowest grade municipal wastes. The modern chemistry of today’s petrochemical industry transforms them into the highly sought fuels.

There are two processes making renewable diesel. Hydrogenation and Fischer Tropsch Pyrolysis.

The most common way to produce renewable diesel is by hydrotreating, commonly referred to as hydrocracking, which involves reacting the feedstock with hydrogen under high temperature and pressure in the presence of a catalyst. Renewable diesel made with this process is often called Hydogenated Vegetable Oil (HVO). HVO and Renewable Diesel are the same fuel. Utility scale power generation often will refer to HVO as their technical term for this low CO2 biofuel.

How HVO is made is extremely similar to crude fossil fuel. The investments to do it also cost billions of dollars similar to the costs of petroleum refining. Imagine a vegetable or animal fat being put under pressure, the molecules are cracked into smaller chain molecules and as this stream of feedstock is passed in the presence of a catalyst as hydrogen is added it forms hydrocarbon molecules like diesel, jet fuel, and propane. This process removes oxygen, sulfur, nitrogen, and other impurities from the feedstock and converts it into hydrocarbons that are similar to those in petroleum diesel⁴⁵. Hydro processing is also used in petroleum refineries to upgrade crude oil into various fuels, such as renewable diesel.

Other ways to produce renewable diesel include pyrolysis, usually using a Fischer Tropsch process. Pyrolysis is usually made from high energy content dry garbage. Think wood waste, plastics, tires, and other high Btu content waste streams. These garbage feedstocks are transformed into hydrocarbons with a process of heating the feedstock in the absence of oxygen to produce a liquid bio-oil that can be further upgraded into renewable diesel; gasification, which involves converting the feedstock into a mixture of carbon monoxide and hydrogen (syngas) that can be synthesized into renewable diesel; and biochemical and thermochemical technologies, which involve using enzymes, microorganisms, or catalysts to convert the feedstock into renewable diesel⁴.

According to the U.S. Energy Information Administration (EIA), U.S. production capacity for renewable diesel could increase significantly through 2030, based on several announced and developing projects. This growth is driven by higher state and federal targets for renewable fuel, favorable tax credits, and the conversion of existing petroleum refineries into renewable diesel refineries². As of the end of 2020, U.S. renewable diesel production capacity totaled nearly 0.6 billion gallons per year (gal/y), or 38,000 barrels per day (b/d). Several projects currently under construction or completed can jump this capacity up billions of gallons. could increase this capacity by 2.4 billion gal/y; proposed and announced projects would add another 1.8 billion gal/y by 2024. If all projects come online as intended, U.S. renewable diesel production would total 5.1 billion gal/y (330,000 b/d) by the end of 2024².

Globally, over 1.45 billion gallons of renewable diesel are produced annually and are forecasted to grow up to 3.34 billion gallons in 2024. Neste, a Finland based petroleum refining company, is currently dominating the production of renewable diesel¹. Other major producers in the United States include Chevron, BP, Seaboard Energy, Phillips 66, HF Sinclair, Montana Renewables, Marathon, and Diamond Green Diesel¹.

Resources:

(2) Renewable Diesel and Biodiesel Basics – EIA

(3) U.S. renewable diesel capacity could increase – EIA

(4) Renewable Diesel: The Fuel of the Future – FutureBridge.

(5) Overview of the Production Capacity of U.S. Renewable Diesel Plants

comparison chart showing difference between off-road diesel and on-road diesel fuel in Portland OR

July 9, 2025

The Future of Diesel Fuel https://staroilco.net/wp-content/uploads/2024/06/Untitled-design-45.png 940 788 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png July 9, 2025 July 14, 2025

The Future of Diesel Fuel

Retail Diesel Dispenser Example — Retail Diesel Pumps with a variety of blends of diesel. Biodiesel, Renewable Diesel, and Fossil Diesel blends shown in Portland, Oregon.

The Future of Diesel is Low CO2 Synthetic Fuels

The stew of molecules your diesel is made of has been changing. A next level technology in chemistry is enabling garbage to be transformed into hydrocarbon fuels like diesel, jet fuel, naphtha, and propane as well as other high value chemicals. These technologies enable petroleum refineries in the United States to retool themselves and move into making biofuels with the very technology used to refine modern gasoline and diesel fuels from crude oil. Currently oil refineries take crude petroleum and crack the molecules and reform them with a hydrotreater. This hydrogenation is what makes renewable diesel from fats, oils and greases.

If you have ever worked under your sink at home. Remember the greasy mess inside the pipes below your kitchen sink. These renewable hydrogenation technologies can turn that trash into a super clean high performance synthetic diesel fuel. That waste stream along with used deep fryer oil, the animal fats from rendering and other sources is the feedstock for renewable diesel. It is exciting and this will be the future of our diesel and jet fuels. These fuels also have a fraction of the CO2 footprint of a fossil fuel equivalent as measured by Oregon, Washington or California’s rules to measure the carbon intensity of fuels.

Diesel Fuel in Oregon and Washington

Star Oilco has been getting questions on the changes of diesel in Portland, Oregon. If you have not noticed, many diesel pumps at retail gas stations and cardlock have seen changing stickers on the face of the fuel pumps. As of July 1st, 2024 the City of Portland requires a minimum 15% biofuel content of all diesel sold. This policy is called the Portland Renewable Fuel Standard. Portland currently plans to ramp up this requirement to a 50% biofuel blend in May of 2026. So that every gallon of diesel sold inside the City of Portland must be half biomass based diesel products blended with fossil diesel.

This has caused quite a few changes in what fuel pumps have as their fuel for sale. Usually people notice this change with teh color of the diesel coming out of the retail nozzle. Diesel fuel buyers are noticing the bright yellow color of B20 biodiesel, the fully clear color of Renewable Diesel or a mix of several fuels tinting the color of their diesel. This trend is bigger than just Portland.

Today on the west coast there are a variety of product label stickers you will see on diesel pumps. These show the variety of diesel fuel specifications that are being sold to diesel vehicles today. Blends of petroleum ultra low sulfur diesel, R99 (99%) renewable diesel, and B99 (99%) Biodiesel are combined to meet the market needs of the diesel we all buy.

This change is because of a combination of pure market forces, government rules and local decisions by fuel haulers. Today’s diesel not only has a commodity market for the fuel it also has a market for CO2 credit value and a cap of total petroleum diesel fuel that can be sold into a west coast state with a “Cap and Invest” program requiring blends of low CO2 biofuels, the liquid fuels sold for vehicles.

Add on top of these market forces, advances in technology used to make the liquid diesel fuel. The diesel arriving at truck stops, gas stations, cardlock or out of a hose from a bulk truck has been changing and it’s often in good ways. Knowing how can be helpful in navigating why diesel may cost one price or another and may have a need or maintenance that another fuel does not.

THE RISE OF RENEWABLE DIESEL

Renewable diesel, also called R99 as in 99% renewable diesel, is a synthetic diesel fuel made from the same feedstock as biodiesel. The big difference though is that renewable diesel’s finished product is hydrocarbon diesel. Biodiesel chemically is not a hydrocarbon or made up of diesel molecules. Renewable diesel is a biofuel, but it is also chemically diesel on a molecular level. For fuel regulation they refer to it (as well as biodiesel) as “Biomass Based Diesel” for labeling at the fuel pump.

There have been billions of plant capacity brought online in the United States for renewable diesel. During the COVID market drop in fuel prices a number of petroleum refineries shut down, then upgraded their technology to make hydrocarbon diesel fuels out of the very biobased fats, oils, and greases biodiesel is made from. These refineries use hydrotreating technology just like they do with a crude petroleum to make an actual hydrocarbon diesel molecule. With this technology adoption to make diesel and jet fuels from vegetable oils and animal fats billions of gallons of low CO2 diesel fuels are coming on the market and governments are requiring it’s use, such as Portland’s Renewable Fuel Standard.

Renewable Diesel Consumption it the US Source: Alternative Fuels Data Center

THE AVAILABILITY OF BIODIESEL

The US makes billions of gallons of biodiesel. A fuel that’s quality and performance continues to improve. If you are not a fan of biodiesel in your fuel thinking strategically about the fuel will likely benefit your fleet operation. The big concern with diesel fuel in a ultra low sulfur world is water and dirt suspended in the fuel affecting the performance of diesel emission systems. With clean and drier quality specifications of B99 blend stocks today versus a decade ago the use of this fuel has grown substantially especially in the truck stop market.

When crude petroleum prices are high and therefore refined diesel prices are equally as high biodiesel is often an extremely competitive fuel. Recently changes in Federal subsidies on biodiesel have changed this market dynamic a bit but you can presume that biodiesel will often be sold at a discount against fossil fuel diesel. If a large seller of diesel (including petroleum refiners) can pick up pennies per gallons on millions of gallons sold they will do so. Therefore Biodiesel is often seen in diesel in small blends even if you do not see a label on retail pump. For blends above 5% a label is required for retail fuel sales.

R99 Renewable Diesel label indicating 99% biomass-based diesel content

Biodiesel Blend Percentage label for retail diesel dispenser

Above are a variety of labels used to denote what fuel blend is coming out of a retail diesel dispenser. Feel free to call Star Oilco at 503-283-1256 if this confuses you and you want it explained. We would be glad to do so.

These labels can be found together often at one pump. All state and Federal standards require ultra low sulfur diesel for any on-road diesel sale. The Federal standards also adopted by the states require a disclosure at the fuel pump if a blend is above 5% biodiesel. The max allowable blend of biodiesel for diesel truck manufactures is a 20% blend. If a truck dealership says that you cannot blend biodiesel up to 20% they need to take that up with the Federal Government because they need to support it. This is why the label shows a blend may contain between 5% and 20% biodiesel content.

Renewable diesel is a hydrocarbon diesel.

It is diesel meeting the ASTM D975 specification for diesel.

Retailers selling blends of R99 in their fuel do not need to label it given this. They still do label it given the benefits of the fuel’s performance and that customers are seeking that fuel.

Contact Us Today To Schedule Your Next Bulk Fuel Delivery

Many retail places will have stacked labels showing they may be blending 5% to 20% biodiesel as well as may be adding R99 Renewable Diesel to the fuel as market conditions dictate it is the more cost competitive fuel. When seeing a label like this it can usually be assumed they are blending a R80 (80% Renewable Diesel) and a B20 (20% Biodiesel) blend of fuel. This blend is actually believed by some to be a higher performing fuel seeing better performance that a R99 or B20 fossil fuel blend.

Fossil fuel diesels are being replaced or blended with biomass based diesels. Be it Renewable Diesel or Biodiesel. These blends are driven by more than one industry requirements, government rules, or other market forces. One of these being Portland’s banned on petroleum diesel through the Renewable Fuel Standard (RFS). This is resulting in an increase of low-carbon biofuel blends that will ultimately move to a mix of 99% renewable fuel requirement by 2030.

Renewable Diesel and Biodiesel Blend fuel dispenser label.

The big drivers are industry specification for fuels (both labeling as well as chemical characteristics), state rules on selling these fuels, their quality assurance as well as CO2 content, and of course the market forces. Market forces being the supply and demand availability of fuel needed to meet customers. Less fuel available to sell means higher prices for customers.

A decade ago the market for diesel was far simpler. Though you had biofuels and some blend mandates basically you had a diesel specification accepted and the daily price as tracked by a lighted retailers sign, a wholesale market average or spot buying by some customers. Today this market is far more complicated by government regulation on the west coast. There are three big programs at state levels impacting this.

State Fuel Rules cause a unique need for one state or another. Whereas twenty years ago if Oregon or Washington fuel was selling for more than the Gulf Coast you might see brokers bring fuel into the region then driving down high prices. With the creation of various complex and unique rules on diesel, imports of fuel to these low CO2 fuel states has dropped. The amount of people moving product into west coast states has dropped. The big rules causing this are the Cap and Invest programs of the West Coast states, the Low CO2 Fuel Standards of the states, and the fuel blend mandates of various jurisdictions of these states. For instance California now requires all off-road diesels but 99% renewable diesel. Portland, Oregon also has a CO2 requirement and minimum 15% blend of biomass based diesel on all fuel sold in the state.

WHAT ARE THE DIESEL FUELS AND THEIR SPECIFICATIONS

Petroleum Diesel:
ASTM D975 Specification.

The ASTM D975 is a series of tests used to maintain consistent industry standard product performance for diesel fuel. It includes among several tests cloud point, cold filter plug point (CFPP), several masurements of diesel fuel operability performance, intrained water content, sediment, carbon residue, ash, distillation, viscosity, sulfur, copper corrosion, cetane number, cetane index, aromaticity, and conductivity.

Renewable Diesel:
ASTM D975 Specification.

Renewable Diesel is following the same series of tests as petroleum refined diesel fuels. It is the same ASTM D975 specification. Though Renewable Diesel has some different properties that exceed the ASTM specification of diesel. Renewable Diesel is highly prized as a fuel because it typically is a cleaner and drier diesel fuel than petroleum diesel. This being seen by the tests on sediment and water content in a parts per million level. Renewable Diesel content in diesel fuel can also be tested for looking for a C14 molecule (the chain typically created in a Hydrotreated Diesel process from fats, oils and greases.

Biodiesel (Methyl Esther):
ASTM D6751 Specification.

The ASTM for Biodiesel tests a mono-alkyl esters of long chain fatty acids derived from vegetable oils and animal fats. The testing for quality assurance covers an analysis for flash point, methanol, water and sediment, kinematic viscosity, sulfated ash, oxidation stability, sulfur, copper strip corrosion, cetane number, cloud point, acid number, carbon residue, total and free glycerin, phosphorus, reduce pressure distillation temperature, atmospheric equivalent temperature, combined calcium and magnesium, and combined sodium and magnesium.

For more on Biodiesel Use and Handling the National Renewable Energy Laboratory has a great book on the subject.

THE HISTORY OF DIESEL FUEL SPECIFICATIONS IN THE UNITED STATES

In the 1990’s the US EPA passed rules that demanded a phase out of sulfur in diesel fuel. The presence of sulfur was very good for the fuel’s storage stability as well as fuel lubricity, but was horrible for air quality. Additionally the big smog contributor was NOx (nitrous oxide) which was one of the EPA’s reason’s for pulling sulfur out of diesel. For the EPA to get engine manufacturers to treat the NOx emissions at the tailpipe they needed all the sulfur gone (ultra low sulfur diesel) for modern diesel emission systems to be able to eliminate NOx as well as a host of other pollutants including particulates.

The story of changing diesel fuel standards in the US under the EPA is one of removing sulfur from our diesel fuel. In 1996 the fuel refiners and sellers of diesel had to move the sulfur content of the fuel sold for on-road purposes to below a 500 parts per million standard. Commonly referred to as Low Sulfur Diesel fuel. In 2006 the standard moved to a maximum of 15 parts per million of sulfur for all on road fuels.

In 2006 while the sulfur content of fuel was dropping the City of Portland released the first mandated blend of biodiesel content. This being a 5% biodiesel blend. The next year, the State of Oregon followed with its own Renewable Fuel Standard requiring this throughout the state. This began the expectation of biodiesel in most diesel fuel in the Portland, Oregon area. Washington also passed a similar policy for blending biodiesel but the enforcement and need for the fuel is less specific at Washington fuel pumps.

Sign Up To Receive Our Fuel Market Report For Your Weekly Fill Of Updates!

July 8, 2025

Fuel Market Report: June 29th – July 5th, 2025 https://staroilco.net/wp-content/uploads/2023/12/trailer-trucks-driving-road-surrounded-by-beautiful-green-trees-1024x683.jpg 1024 683 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png July 8, 2025 July 8, 2025

Fuel Market Report: June 29th – July 5th, 2025

1-month average retail fuel price trends in Oregon, Washington, and the USA alongside crude oil prices for June 29th through July 5th

Wholesale Price Average 7/5/25

	Wholesale Low	Wholesale Avg
E10	$2.42	$2.51
B5	$3.22	$3.29
B20	$3.19	$3.33
R99	$3.28	$3.35

Average Retail Prices 7/5/25

	National	Oregon	Washington
E10	$3.14	$4.02	$4.41
B5	$3.68	$4.47	$4.95

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

Oregon Fuel Price Variance

Chart of average gas prices over time for Regular, Mid, Premium, and Diesel in July 2025.

Fuel Market News

The past week brought a mix of pricing fluctuation, with gas prices down and diesel prices up. Rack averages in Portland dipped $0.05/gal for gasoline and jumped $0.02/gal for diesel. Smaller price fluctuations than weeks past, as the market is still balancing the heightened political climate in the Middle East, with much remaining uncertain for the weeks ahead. Crude oil is hovering just below $70/barrel at a current rate of $68.00/WTI Crude, and is expected to remain at this level in the weeks ahead. Retail fuel prices are still high in Oregon and Washington, with most retail stations in Portland averaging around $4.15/gal. The 4th of July brought an increase of 1.7 million drivers traveling, which is up 2.4% from last year.

2025 Fuel Market Outlook: Oregon

Reasons For Price Variance

OPEC+ Production Cuts

Crude oil is trading below $70, at a current price of $68.00/barrel. This is $3.09/barrel higher 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 $68.00/barrel compared to $64.91/barrel last week and $72 a year ago.

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.

For other news in the fuel market:

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

July 2, 2025

Fuel Market Report: June 22nd – June 28th, 2025 https://staroilco.net/wp-content/uploads/2023/12/trailer-trucks-driving-road-surrounded-by-beautiful-green-trees-1024x683.jpg 1024 683 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png July 2, 2025 July 2, 2025

Fuel Market Report: June 22nd – June 28th, 2025

1-month average retail fuel price trends in Oregon, Washington, and the USA alongside crude oil prices for June 22nd through June 28th

Wholesale Price Average 6/28/25

	Wholesale Low	Wholesale Avg
E10	$2.43	$2.56
B5	$3.16	$3.27
B20	$3.27	$3.32
R99	$3.13	$3.27

Average Retail Prices 6/28/25

	National	Oregon	Washington
E10	$3.19	$4.05	$4.43
B5	$3.69	$4.46	$4.92

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

Oregon Fuel Price Variance

Current average fuel prices for regular, mid-grade, premium gasoline, and diesel in June 2025.

Fuel Market News

The past week brought downward price fluctuations as oil prices dipped and rack averages dropped. Rack averages in Portland were $0.10/gal lower than the week prior across the board for both gas and diesel. The retail street price did not see these dips, as the Oregon retail average remained high around $4.15 and closer to $4.20 in the greater Portland area. After the heightened tensions and missile strikes on Iran, many analysts expected the market to skyrocket for crude oil prices, while the opposite occurred. Crude oil prices peaked at $74/barrel on June 20th and have since dropped below $65 as of the 30th.

2025 Fuel Market Outlook: Oregon

Reasons For Price Variance

Oil Prices Below $65

US Strikes on Iran

New Sanctions On Russia

Crude oil is trading below $65, at a current price of $64.91/barrel. This is $3.85/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 $64.91/barrel compared to $68.76/barrel last week and $74 a year ago.

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.

For other news in the fuel market:

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

Close-up of green fuel nozzle for renewable diesel

July 1, 2025

Every Question We Have Been Asked About Renewable Diesel https://staroilco.net/wp-content/uploads/2024/02/3-star-oilco-portland-or-renewable-diesel-1024x696.jpg 1024 696 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png July 1, 2025 July 2, 2025

Every Question We Have Been Asked About Renewable Diesel

Renewable Diesel Frequently Asked Questions (FAQ)

What is renewable diesel?

Renewable diesel is a synthetic diesel fuel, known for it’s lower CO2 characteristics, typically seeing purity and real world performance response superior to petroleum diesel fuel. Renewable diesel is a next generation hydrocarbon diesel biofuel made by either the Fischer-Tropsch or Hydrogenation processes.

Hydrogenated renewable diesel is made by taking fats, oils, and greases by use of a hydro-treater. The biomass based oil or fat is cracked and reformed in the presence of hydrogen and catalyst forming a hydrocarbon diesel molecule.

Fischer-Tropsch renewable diesel is used by converting any btu dense feedstock (wood waste, woody biomass, municipal garbage, coal, and an endless list of low value waste products into syngas, then converting this into a wax that is reformed into hydrocarbon diesel.

Is it true that Renewable Diesel reduces CO2 emissions by more than half?

It depends on the feedstock and processes that determine the fuel pathway. But for the most part it is safe to presume that if you use a R99 Renewable Diesel product in Oregon that it will have a lower than 50CI which would cut the CO2 emissions in half versus an equivalent gallon of gasoline used. Sometimes Renewable Diesel can be blended with fossil fuel diesel as well as biodiesel. Star Oilco currently presumes 99% renewable diesel is the fuel being used when describing Renewable Diesel and “cutting emissions in half” as a claim, backed up by the scientific data associated with the Oregon Clean Fuels Program and its pathways.

According to the Oregon Clean Fuels Program list of pathways for Renewable Diesel approved to be sold in Oregon shows the lowest CO2 value to be 16.36 CI and the highest to be 65CI. Most, nearly all, of the Renewable Diesel pathways in Oregon are below 50% reduction in CO2 emissions associated with the fuel. You can see these by reviewing the downloadable spreadsheet of “Fuel Pathways – Carbon Intensity Values” available on the left hand side of the Oregon Clean Fuels Program website under the heading “Participating Facilities” as an easy sharable link is not available.

To learn more about this please see the Oregon Department of Environmental Quality’s Clean Fuels Program page where CO2 emission pathways are disclosed for renewable fuels distributed in Oregon. The system used to measure CO2 emissions and reduction is a modified Oregon “GREET” model. GREET stands for Greenhouse gas, Regulated Emissions, and Energy Use in Technology. The GREET scientific system to review CO2 emissions was developed by the US Department of Energy and similar systems are used by California and Washington in their Low Carbon Fuel Standards as well.

Is HVO or Hydrogenated Vegetable Oil the same as Renewable Diesel?

Yes. HVO is either R100 or R99 renewable diesel. The reason you will hear the phrase HVO or Hydrogenated Vegetable Oil instaed of renewable diesel is that the regulations and various incentives for renewable diesel have restrictions. If renewable diesel is used in stationary power generation it is treated differently for the various subsidies and incentives. The regulations on fuels for vehicles and equipment differ compared to utility scale power generation. For this reason the power generation industry will refer to renewable diesel as “HVO” to denote it’s end use.

Is Sustainable Aviation Fuel or “SAF” the same as Renewable Diesel?

No. Sustainable Aviation Fuel or “SAF” is a Jet A specification or a Number 1 diesel fuel. A Number 1 diesel fuel can be mixed with Number 2 without impacting it’s specification requirements. Number 1 though cannot be mixed with Number 2 diesel weights and stay in specification. It is a lighter end than Number 2 diesel meaning it has a different specific gravity weight of the fuel. So in short SAF can be used as Renewable Diesel but has a much higher standard to meet than is required for Renewable Diesel. Therefore the products are very different based on this need for quality assurance to meet the aviation jet fuel specification.

There is a huge demand for Sustainable Aviation Fuel and many of the current Renewable Diesel plants in operation are upgrading their technology to make SAF. It is expected that in the hydrotreating processes to make renewable diesel and SAF, the Jet A fuel specification is a harder one to produce. So as the refining of SAF increases we will expect to see subgrade SAF (product made to be SAF that does not meet the standard) be moved to the Renewable Diesel market. We will not see Renewable Diesel being used in jets though.

Can Renewable Diesel be used as Heating Oil?

Yes. Renewable Diesel is a synthetic hydrocarbon diesel fuel. It can be used interchangeably with petroleum diesel products of similar grade. Heating Oil is typically number 2 diesel which is the same specification as Dyed R99 Renewable Diesel (or blends of Renewable Diesel with petroleum diesel). Star Oilco now offers R99 Heating Oil delivered in the Portland metro region area of Oregon.

Most modern oil heat appliances use a Becket Burner. For more on heating fuel compatibility with oil furnaces and oil burning appliance please see “Alternative Fuels and Becket Burners” for more information.

Why do people use renewable diesel over petroleum diesel?

Fleet managers operating R99 Renewable Diesel report a lower mechanical cost of operation using the fuel. Beyond the immediate benefit of R99 cutting CO2 emissions by half or more, fleets experience performance benefits from the fuel. The big savings are seen the the performance of Tier 4 Emission systems on modern diesel seeing far less wear of the Diesel Particulate Filter system as well as far fewer regenerations of the system. Additionally Renewable Diesel is a very clean and dry diesel fuel improving the storage stability, field operation, and general predictability of the fuel’s performance.

How do I know Renewable Diesel is being sold at a retail location?

Renewable Diesel is a hydrocarbon diesel that meets the specification for petroleum diesel known as ASTM D975 specification. This means currently R99 can be readily blended and sold with petroleum diesel without a disclosure. The US Federal Trade Commission and local state Weights and Measures have rules for retail pump labeling. Blend percentages of biomass based diesel must be labeled especially if being advertised. As R99 Renewable Diesel has a higher value and is sought out by many consumers though usually it is disclosed. The pump labeling for R99 Renewable Diesel typically looks like the below.

What is renewable diesel made of?

Renewable diesel can be made from a host of things, usually a low value waste product. The most common feedstock used currently is waste vegetable oil, wastes from animal rendering, and other biologically derived oils. Processes using bio-oils are following a Hydrogenation process to turn low value waste oils into high value diesel and jet fuel.

Chevron Renewable Energy Group and Diamond Green Diesel (Diamond Green is in a joint venture with Valero) are the largest producer of renewable diesel with their REG Ultra Clean Diesel product in the United States. Neste is the largest producer of renewable diesel internationally, with its “Neste My” product. being the two largest producers of low CO2 bio-oil derived renewable diesel fuels.

Major petroleum refiners have also turned around existing petroleum refineries into Renewable Diesel Refineries to produce this in demand low CO2 fuel. HF Sinclair , Marathon, Phillips 66, and Montana Renewables. There are quite a few newer Renewable Diesel projects planned and in progress around the United States as well as in the Pacific Northwest.

Other refiners of renewable diesel (on a much smaller scale of production) are using a Fischer-Tropsch process with wood waste, sorted higher grade municipal garbage, and other high btu value carbon based waste products. Many expect this to technology to be the future of all diesel and jet fuel refining turning refuse into fungible low carbon fuel.

What is renewable hydrocarbon diesel?

Renewable hydrocarbon diesel is a synthetic diesel fuel made from non-petroleum feedstocks like vegetable oil, animal fats, municipal waste, agricultural biomass, and woody biomass. It is characterized by having a low CO2 and renewable resource for its feedstock and is made without crude petroleum, coal, or natural gas as a direct feedstock input in the refining process.

How do they make renewable diesel?

Renewable diesel is made by several processes. If you are buying renewable diesel, it is probably from a Hydrogenation process used by Renewable Energy Group and Neste for their products. Other smaller volume producers are using a Fischer-Tropsch process or Fast Pyrolysis. Both processes involve taking energy dense molecules, cracking those molecules under heat and pressure, then reforming them in the presence of a catalyst and added hydrogen, which forms a renewable diesel molecule.

Is renewable diesel a lower carbon fuel compared to petroleum diesel?

Yes, to this point all renewable diesel made from renewable feedstocks have appeared to be a lower CO2 fuel compared to petroleum diesels. The California Air Research Board in particular has done research on this in depth.

The low CO2 lifecycle emissions of Renewable Diesel also is tracked closely and supervised by California’s Low Carbon Fuel Standard, Washington’s Low Carbon Fuel Standard, and Oregon’s Clean Fuels Program. The highest value markets for low CO2 fuels in the United States are California and Oregon, which both have mechanisms that track and price the CO2 intensity of diesel fuels as well as the sustainable lower CO2 substitutes and blend-stocks that can go in those diesels. They track, rate, and determine the carbon intensity of the fuels providing a neutral and scientifically defensible number for CO2 reduction.

Is renewable diesel available in Oregon?

Renewable diesel is readily available for delivery from Star Oilco throughout the Pacific Northwest via 10,000 gallon volumes of bulk delivery. Star Oilco is also offering bulk delivery of any size and mobile onsite fueling service within 100 miles of the Portland, Oregon market.

Star Oilco has R99 Renewable Diesel available with a Star Oilco CFN Cardlock card in Portland, Oregon.

What is the difference between biodiesel and renewable diesel?

Biodiesel and renewable diesel are very different fuels made with very different processes. In a nutshell, biodiesel is made with a simple chemical reaction that turns vegetable and animal fats into fuel. Renewable diesel is made from far more complicated process where vegetable and animal fats (as well as other feedstocks) are cracked on a molecular level and built back into synthetic diesel fuel.

What is the difference between renewable diesel and Sustainable Aviation Fuel?

The difference between the fuels is the specific gravity and general specification for what the fuel is used for. Jet fuel, or Sustainable Aviation Fuel, and on-road diesel fuel are different fuels and therefore have different specifications. Renewable diesel is typically referring to a #2 diesel specification for on road diesel use.

Sustainable Aviation Fuel or “SAF” is typically referring to “Jet A” or “JP8” jet fuel specification for fuel. This is a #1 diesel range fuel with use and handling requirements that are far more stringent than for on-road or off-road diesel fuels. Renewable jet fuel can be used as a kerosene or #1 diesel fuel but renewable diesel cannot be used as a jet fuel.

Where do I buy renewable diesel in Oregon or Washington?

Renewable Diesel is currently available for bulk delivery and mobile onsite fueling. It will soon be offered at commercial cardlock in the Portland area. It is being sold as R99 and as Ultra Clean Diesel, which is a mixture of biodiesel, renewable diesel, and petroleum diesel.

What is R99?

R99 stands for 99% renewable diesel and 1% petroleum diesel. Federal rules over alternative diesel fuels made fuels requires that manufacturers of non-petroleum derived diesel fuels must blend a minimum 1% petroleum with the fuel to generate a Renewable Industry Number or “RIN” under the US Federal Renewable Fuel Standard. Additionally there are other incentives that require a “blender of record” to receive these tax credits.

Is renewable diesel being made in Oregon?

As of Spring 2022, renewable diesel is not being manufactured in Oregon. There is a major projects underway, Next Renewable Fuels in Port Westward, Oregon.

What is renewable diesel made from?

Renewable diesel can be made from many energy dense carbon based material. By volume of produced product sold in the United States, vegetable oils and animal fat-based wastes are the most common feedstock. Woody biomass, agricultural wastes, and sorted municipal wastes are also sources for renewable diesel production.

Is renewable diesel made from palm oil?

Palm oil can be used as a feedstock for renewable diesel. There are producers who use palm oil as a feedstock. In the United States, feedstocks and carbon intensity are tracked closely under both Oregon and California’s fuel programs. You can determine if a supplier is using palm oil as a feedstock through these regulated pathways.

How much does renewable diesel cost?

This is a tough question to answer given there are several markets intersecting. From the feedstocks to the market demand for the finished product as well as both California and Oregon’s Clean Fuel Standards which place a price on the CO2 intensity of the fuel which reduces the cost of the fuel if consumed in Oregon and California.

It has consistently been trending between the same cost and over $1 a gallon higher than petroleum diesel depending on the state, you buy renewable diesel in. In California, renewable diesel is very close to petroleum diesel depending on the value of CO2 credits for lower-carbon fuels. In Oregon, it has consistently been between $.05 to $.80 a gallon higher than diesel also depending on the value of CO2 abatement associated with the fuel and what these carbon credits are trading for.

When petroleum diesel costs are high Renewable Diesel tends to be more competitive with petroleum diesel. When petroleum diesel is below $3 a gallon the cost of Renewable Diesel by comparison is usually higher unless CO2 credits are in higher than normal demand for Clean Fuels Program demands.

Can you mix petroleum diesel and renewable diesel?

Yes. Renewable diesel and petroleum diesel can be blended in any mixture without worry. They are drop-in substitutes for each other in your fleet’s use. Renewable Diesel is a drop-in fuel. It is a hydrocarbon diesel that will work mixed with diesel or biodiesel blends of petroleum diesel.

Learn more about renewable diesel and how it can benefit your operations. Contact us today.

Contact Form

First Name*
Last Name*
Email*
Phone*
Subject*
Message*
Consent*
I agree to the privacy policy.
I understand that Star Oilco any contact information provided solely to serve you in the way you request. We do not sell, share, or disclose any emails, phone numbers, or contact names received from our website other than in the course of following up to answer your requested questions and better serve your needs. Star Oilco seeks to be proactively compliant with any and all consumer privacy best practices in the United States.
CAPTCHA
Email
This field is for validation purposes and should be left unchanged.

multi colored fuel pump nozzles indicating different fuel types at Portland fueling station

June 25, 2025

Clear Premium Non-Ethanol Gasoline https://staroilco.net/wp-content/uploads/2024/06/different-colours-gas-station-pumps-683x1024.jpg 683 1024 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png June 25, 2025 June 25, 2025

Clear Premium Non-Ethanol Gasoline

Do you need Non-Ethanol Gasoline delivered in the Portland, Oregon area?

If you are looking for Non-Ethanol Premium Gasoline delivered to your bulk tank or available at a Commercial Cardlock, Star Oilco has your needs covered in the Pacific Northwest.

Premium Unleaded without Ethanol in the Gasoline

Nonoxy Premium is the fuel you want in a gasoline tank if you are storing equipment with a full tank of fuel.

Premium gasoline without any ethanol blended into it goes by several names. Clear premium unleaded, Non-Oxy (non-oxygenated) premium, nonethanol gasoline, or Clear 91 Octane are a few of the terms used. Regardless of what it is called, getting gasoline without ethanol in the Portland, Oregon area requires buying a premium rated gasoline.

Call Us Today

Clear Gasoline Premium bulk tank delivery

Why is the only ethanol free gasoline in Oregon and Washington premium grade of 92 octane?

This is because of several laws in Oregon as well as Washington that require the blending of 10% ethanol with all gasoline with the exception of premium grades for small engines, classic cars, aviation uses, and other type specification needs.

With the blend requirements for 10% ethanol this changed the way gasoline was supplied in the Pacific Northwest. This was caused by the octane ratings of gasoline. Regular gasoline is a 87 octane rating. E98 ethanol has a 107 octane rating. With this blend requirement, the gasoline changed to account for the high octane of ethanol. So refiners and sellers of gasoline began to use what the industry calls a “sub-octane” gasoline at 85 octane because the guaranteed blend of 10% ethanol would boost the octane rating back up to 87 octane.

This is usually where people ask: “Why does this effect premium unleaded as well, and why the heck is clear premium so expensive?”

There are three reasons nonoxygenated gas costs more:

1- Ethanol is a lower cost fuel than gasoline, so less ethanol means a slight higher price of the fuel.

2- Fewer terminals carry a non-ethanol option for Premium unleaded reducing options for customers demanding the fuel and therefore higher prices.

3- CO2 regulations have raised the cost of fuels without biofuel blends in them as well.

REASON 1

The reason why is for several decades before the 10% ethanol blend mandate, the industry has been upgrading retail gas stations, cardlocks, and truckstops to blend regular gasoline and premium gasoline to the midgrade gasoline at the island. With a 10% ethanol blend mandate for regular unleaded and midgrade this required any and all retailers with blending pumps to use E10 (10% ethanol) premium to be legal with their midgrade product sold. This also means that a non-ethanol premium pump requires a stand alone pump, line set up, and infrastructure need.

REASON 2

The blend mandates for gasoline caused all of the major branded gas station chains to move to a defacto 10% blend at the terminal level reducing availability of non-ethanol or “Clear” premium gasolines. With far fewer petroleum terminals, brokers, refiners, and other upstream wholesale dealers of gasoline exiting the non-ethanol gasoline market due to far lower volumes of it, the price went up. This also means that there is far less volume of ethanol free premium unleaded being sold at the wholesale level. Reducing the volume of sales of a single fuel grade raises the cost risk in a volatile commodity market like gasoline.

REASON 3

Recently the entire western coastal states (Oregon, Washington, and California) passed laws around CO2 emissions and liquid fuels like gasoline. This means that there is a cost for fossil fuels over biofuels which prices into the gallon of fuel. The less biofuel the higher the CO2 cost for those buying it. Add to that the western states have Cap and Invest rules which put a total limit on volumes of fossil fuels. These “Cap at the Rack” charges for fossil fuel have been as high as a full $1 for a gallon of fossil fuel in past years. Cap at the Rack charges on fossil fuel gasoline is usually in the $.40 a gallon added cost range of the price you pay.

If Clear Premium Gas is so expensive why do people still use it?

It is the optimal fuel for small engines that have a habit of being stored for long periods of time without use. Nonethanol fuel stores stable for a longer time and has a better cold start performance than an E10 gasoline fuel that has sat for over a year. Add to that it also does not absorb water or impact plastic/rubber/elastomer seals in equipment. That is why people prefer it. Sure, the limited availability of terminals carrying this product makes it a specialty in Oregon and Washington. But the added cost is worth it for sensitive low tolerance engines or for vehicles with long periods of storage between uses.

Choose Star Oilco as your fuel provider for your clear premium non-ethanol gasoline

June 24, 2025

Fuel Market Report: June 15th – June 21st, 2025 https://staroilco.net/wp-content/uploads/2023/12/trailer-trucks-driving-road-surrounded-by-beautiful-green-trees-1024x683.jpg 1024 683 Star Oilco Star Oilco //staroilco.net/wp-content/uploads/2022/10/StarOilco-Logo-RGB-C-Lg-Simple.png June 24, 2025 June 24, 2025

Fuel Market Report: June 15th – June 21st, 2025

1-month average retail fuel price trends in Oregon, Washington, and the USA alongside crude oil prices for June 15th through June 21st

Wholesale Price Average 6/21/25

	Wholesale Low	Wholesale Avg
E10	$2.74	$2.80
B5	$3.28	$3.39
B20	$3.39	$3.45
R99	$3.27	$3.38

Average Retail Prices 6/21/25

	National	Oregon	Washington
E10	$3.22	$4.06	$4.44
B5	$3.68	$4.42	$4.86

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

Oregon Fuel Price Variance

June 2025 chart of Oregon average fuel prices for Regular, Mid, Premium, and Diesel.

Fuel Market News

The past week brought in more upward price fluctuation following the escalated tensions in the Middle East involving Israel, Iran, and the U.S. Crude oil jumped up to $77/barrel on Thursday but has since trickled back down below $70 as of Monday. Rack averages in Portland jumped $0.17/gal on gas, $0.27/gal on B5 diesel, $0.26/gal on B20 diesel & $0.23/gal on R99 Renewable diesel. The largest price hikes we’ve seen all year for a single week. The U.S coordinated bomb strikes on Iran on Sunday, June 22nd, which were followed by Iran attacking US bases in Qatar, while not officially announced, these are both signs of a new war beginning between the US & Iran. What this could mean for crude oil and commodity pricing is unknown, but it is assumed that crude oil will begin a sharp climb in price in the weeks to follow.

2025 Fuel Market Outlook: Oregon

Reasons For Price Variance

Israel’s attack on Iran

US Strikes on Iran

New Sanctions On Russia

Crude oil is trading below $70, at a current price of $68.76/barrel. This is $2.56/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 $68.83barrel compared to $71.32/barrel last week and $72 a year ago.

Fuel prices result from a complex interplay of the factors mentioned above and other factors regionally. 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.

For other news in the fuel market: