US Fuel Prices This Week: Refiners Resist Investment as Costs Stay High

What moved this week

National diesel sat at $6.32 on October 31, 2026, just below the 2026 high of $6.48 reached on September 22. Gasoline followed the same pattern at $4.22 on October 31, compared with its 2026 high of $4.50 set on September 25. Neither number moved much in percentage terms over the past week, but the gap between where prices started the year and where they sit now tells the real story. National diesel's January 2026 average of $3.52 is 80% below the current reading, and gasoline's January average of $2.70 sits 56% below where drivers are paying today.

Those are not small shifts. They reflect a year in which supply constraints, geopolitical conflict, and a refining sector unwilling to expand have combined to keep pump prices elevated long after the initial shocks that caused them. This week's data confirms that the plateau near 2026 highs is holding, not breaking.

The refinery investment standoff

The most consequential story for fuel buyers this week may not be a price move at all. FT Energy reported in late October 2026 that major oil companies are resisting pressure to build new refining capacity even as fuel prices keep climbing. The report ties the capacity squeeze to conflicts in the Middle East and Ukraine, which have cut into production and processing capability and pushed refining margins sharply higher.

This matters because it changes the shape of the recovery buyers have been waiting for. A temporary price spike caused by a single disruption tends to fade once that disruption clears. A price plateau caused by a structural refusal to add capacity behaves differently. Margins stay fat, supply stays tight, and prices have little reason to retreat toward January 2026 levels unless something forces the industry's hand.

OilPrice.com reported in October 2026 that Chevron raised its exploration spending by 50%, a shift away from the company's recent focus on the Gulf of Mexico and Permian shale basin. More exploration spending is a long-term signal, not a short-term fix. It says nothing about whether the refining bottleneck narrows this winter. For buyers trying to plan diesel and gasoline costs into 2027, the message is that the supply side of this market is adjusting on a multi-year timeline, while pump prices respond week to week.

State by state: who is paying the most

Regional spreads remain wide, and they matter more than the national average for anyone fueling a fleet in a specific state.

California continues to carry the heaviest cost. Diesel there hit $8.37 on October 31, not far from its 2026 high of $8.51 reached on October 18, a high set just two weeks before this reading. Gasoline in California reached $5.91 on the same date, down from its 2026 high of $6.40 on October 1. California's January 2026 diesel average of $4.66 is now 80% below the current price, and its gasoline January average of $4.01 sits 47% below the current reading.

Hawaii and Alaska remain the other outliers. Hawaii's diesel hit $7.29 on October 31, matching the 2026 high set just two days earlier on October 29. Hawaii's gasoline reached $5.66 on October 31, also a fresh 2026 high the same day. Alaska's diesel came in at $6.46 on October 31, below its 2026 high of $6.70 from September 25, while Alaska gasoline reached $4.78, well under its May 27, 2026 high of $5.25.

At the other end of the range, Southern states are showing some relief relative to their own 2026 peaks. Georgia's diesel sat at $5.69 on October 31 against a 2026 high of $6.35 from September 19. Arkansas diesel came in at $5.88 against a September 21 high of $6.21, and Alabama diesel read $5.88 versus a September 20 high of $6.16. Gulf Coast diesel, a useful regional benchmark for buyers across the South, stood at $5.95 on October 26, down from its September 21 high of $6.18, though still 84% above its January 2026 average of $3.23.

Colorado tells a different kind of story. Its gasoline January 2026 average of $2.30 is now 85% below the current price of $4.25 recorded October 31, and its diesel reached a 2026 high of $6.44 as recently as October 17. For a state with no January diesel baseline in this dataset, the sharp run from spring into fall has been one of the more aggressive moves in the country.

What these numbers show collectively is that there is no single "national fuel price." A fleet manager running routes through the Central Atlantic region, where diesel read $6.50 on October 26 against a January 2026 average of $3.86, is dealing with a different cost structure than one running through Florida, where diesel sat at $6.00 on October 31 versus a September 18 high of $6.35. Buyers who plan around the national average alone risk underestimating exposure in the regions where they actually operate.

Washington's shifting energy priorities

Policy is also in motion. FT Energy asked this week whether the recent Budget marks the end of what it called "Miliband-ism," pointing to a new emphasis on cutting energy costs and a shelving of the former energy secretary's push for clean power by 2030. While that reporting centers on UK policy, the underlying tension, balancing near-term affordability against longer-term supply transition, is playing out in the US as well.

Politico Energy reported this week that data center growth and rising power bills are turning normally quiet utility board races into political battlegrounds, with both parties using the issue to court voters. A separate Politico Energy piece from the same period described an Ohio group using local ballot measures to slow data center expansion town by town. Power demand and fuel demand are not the same market, but they compete for the same pipelines, the same capital, and increasingly the same political attention. When utility costs become a campaign issue, energy policy broadly tends to shift, and fuel buyers should expect more volatility in the regulatory backdrop over the next year, not less.

Meanwhile, the physical energy system keeps evolving in the background. The EIA's Today in Energy noted that the share of solar generation paired with co-located battery storage has been rising, with more than a stated share of new utility-scale solar capacity including batteries as of September 2026. That is a slow-moving trend, but it is also a reminder that the broader energy transition continues even while fuel prices stay elevated.

What this means for fuel buyers

Put together, this week's data points to a market that is stable at a high level rather than retreating. Refiners are not adding capacity. Regional spreads remain wide. National diesel and gasoline both sit close to their 2026 highs, with no clear catalyst pointing toward a return to January 2026 pricing anytime soon.

For buyers who have been absorbing these swings on the spot market, this is the environment where a fixed-price supply agreement earns its keep. Locking a maximum price per gallon removes the guesswork from budgeting fuel costs through the winter, regardless of what refiners decide to do with their capital next quarter. If your operation still relies on a card program, it is worth comparing how a fuel card stacks up against a price cap agreement before committing to another season of unpredictable costs.

For a closer look at how these swings have played out in recent weeks, see our earlier coverage on crude pulling both ways while pump prices stayed high and on Houthi risk pushing diesel higher.

If current prices in your state are already stretching your fuel budget, the next step is simple. Request a quote at /#quote and find out what a locked maximum price would mean for your fleet this winter.