Sunny Battazzi

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

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

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

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

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!

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

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:

● https://oilprice.com/Energy/Crude-Oil/Trumps-Oil-Tariffs-Could-Cost-Foreign-Producers-10-Billion-Annually.html

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

June 17, 2025

Fuel Market Report: June 8th – June 14th, 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 17, 2025 June 17, 2025

Fuel Market Report: June 8th – June 14th, 2025

Fuel Market Report June 8th to June 14th, 2025

Wholesale Price Average 6/14/25

	Wholesale Low	Wholesale Avg
E10	$2.57	$2.63
B5	$3.08	$3.12
B20	$3.09	$3.19
R99	$3.10	$3.15

Average Retail Prices 6/14/25

	National	Oregon	Washington
E10	$3.14	$3.99	$4.37
B5	$3.52	$4.22	$4.70

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

Fuel Market News

Fuel prices are up across the board this past week following heightened tensions in the Middle East. Crude oil jumped $4/barrel on 06/13 following Israel’s bomb strikes on Iran’s nuclear facilities. This ongoing conflict has led to significant pricing fluctuations on crude oil, while also leaving many uncertain about what is next and how Iran will respond. Rack averages in Portland jumped $0.13/gal on gasoline, $0.11/gal on B5 diesel, $0.13/gal on B20 diesel, & $0.10/gal on R99 Renewable diesel. These price jumps come as no surprise after the significant jump in crude oil prices over the last week. We are entering the busy summer traveling season, which means more cars on the road and more people traveling over weekends. Expect both gas and diesel prices to remain near their current price levels as summer fuel prices are always a bit higher than the rest of the year.

2025 Fuel Market Outlook: Oregon

Reasons For Price Variance

Oil Prices Above $670

Israel’s attack on Iran

Crude oil is trading above $70, for the first time in months, at a current price of $71.32/barrel. This is $5.96/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 $71.32/barrel compared to $65.36/barrel last week and $73 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:

● https://oilprice.com/Energy/Crude-Oil/Trumps-Oil-Tariffs-Could-Cost-Foreign-Producers-10-Billion-Annually.html

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

June 11, 2025

Fuel Market Report: June 1st – June 7th, 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 11, 2025 June 11, 2025

Fuel Market Report: June 1st – June 7th, 2025

1-month average retail fuel price trends in Oregon, Washington, and the USA alongside crude oil prices for June 1st through June 7th

Wholesale Price Average 6/7/25

	Wholesale Low	Wholesale Avg
E10	$2.42	$2.50
B5	$2.93	$3.01
B20	$2.95	$3.06
R99	$2.96	$3.05

Average Retail Prices 6/7/25

	National	Oregon	Washington
E10	$3.12	$3.97	$4.36
B5	$3.51	$4.15	$4.68

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

Fuel Market Report June 2nd to June 8th, 2025

Fuel Market News

Diesel prices are up and gas is down slightly this past week, as fuel prices experience another week of mixed volatility. As we roll into June and the summer driving season, we can expect demand to stay high while supply may decline. Crude oil is trading just about $65 at a current price of $65.36/barrel on WTI Crude. The EU and the Trump administration are planning to impose new sanctions on Russia, including a $45/barrel price cap on Russian Oil, targeting the shadow oil fleet, LNG projects, and energy industry firms. These sanctions, along with production announcements from OPEC+, may lead to a much different Crude supply within the market. Some analysts are predicting $50/barrel Crude this year.

2025 Fuel Market Outlook: Oregon

Reasons For Price Variance

Oil Prices Above $65

President Trump’s Tarrifs

Crude oil is trading above $65, at a current price of $65.36/barrel. This is $2.56/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 $65.36/barrel compared to $62.80/barrel last week and $71 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:

● https://oilprice.com/Energy/Crude-Oil/Trumps-Oil-Tariffs-Could-Cost-Foreign-Producers-10-Billion-Annually.html

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

June 3, 2025

Fuel Market Report: May 25th – May 31st, 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 3, 2025 June 3, 2025

Fuel Market Report: May 25th – May 31st, 2025

1-month average retail fuel price trends in Oregon, Washington, and the USA alongside crude oil prices for May 25th through May 31st.

Wholesale Price Average 5/31/25

	Wholesale Low	Wholesale Avg
E10	$2.54	$2.60
B5	$2.87	$2.96
B20	$2.88	$3.92
R99	$2.98	$3.07

Average Retail Prices 5/31/25

	National	Oregon	Washington
E10	$3.14	$3.99	$4.40
B5	$3.51	$4.12	$4.65

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

Oregon average fuel prices May 2025 for Regular, Mid, Premium, and Diesel compared to last year.

Fuel Market News

Fuel prices experienced a mix of price fluctuation this past week as rack averages for gas, R99, and B20 were down while B5 was up. Rack averages in Portland for E10 dipped $0.11/gal along with R99 and B20 dropping $0.06/gal, while B5 jumped $0.07/gal. This was the first time in three weeks that prices dropped on any products. Crude oil is still hovering around $60/barrel, and fuel prices are poised to see upward price fluctuation in summer months with the summer driving season upon us, increased demand, and summer fuel blends in full supply.

2025 Fuel Market Outlook: Oregon

Reasons For Price Variance

Oil Prices Above $60

President Trump’s Tarrifs

Crude oil is trading slightly above $60, at a current price of $62.80/barrel. This is $1.08/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 $62.80/barrel compared to $61.88/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: