Gas prices are climbing into Memorial Day weekend at $4.53 per gallon nationally, marking the second consecutive week of 25-cent increases. Drivers heading out for the long weekend will pay roughly $1.28 more per gallon than they did last May, a surge driven by ongoing tensions in the Middle East that have disrupted global oil supplies. For a family taking a cross-country road trip in a vehicle that holds 15 gallons, this represents approximately $20 more per fill-up compared to the same week last year—a real cost that adds up quickly over a holiday weekend.
The price spike is not evenly distributed across the country. While drivers in Oklahoma might pay around $4 per gallon, those in California are facing prices approaching $6.20. Understanding these regional differences, what’s driving the increases, and what to expect for the summer season ahead can help you make informed decisions about your travel plans and budget.
Table of Contents
- How Much Are Gas Prices Varying by Region Before Memorial Day?
- What’s Behind the Sharp Price Increase This Week?
- How Much More Will You Spend This Summer on Fuel?
- What Practical Steps Can Drivers Take to Minimize Fuel Costs?
- What Could Push Prices Even Higher This Summer?
- How Does This Compare to Previous Price Spikes?
- What Should You Expect for Gas Prices This Summer and Beyond?
- Conclusion
How Much Are Gas Prices Varying by Region Before Memorial Day?
The cost of filling up your tank depends heavily on where you live. California leads the nation at $6.10 to $6.17 per gallon, while Washington State sits at $5.76 and Hawaii at $5.66. These West Coast and island states face higher prices due to unique refining requirements and limited supply options. Moving down the list, Oregon ($5.34), Alaska ($5.21), and Illinois ($4.99) all remain well above the national average.
Meanwhile, drivers in Oklahoma enjoy the lowest prices at $3.98 to $3.99 per gallon, with Mississippi and Louisiana hovering just above $4. This regional disparity creates a stark reality: a California driver filling a 15-gallon tank pays approximately $90 to $92.55, while an Oklahoma driver pays roughly $60 to $59.85 for the same amount of fuel. Over the course of a memorial day weekend trip, that difference compounds significantly. The limitations of regional pricing are important to understand—they’re not arbitrary, but they do highlight how your zip code alone determines a substantial portion of your fuel budget.
What’s Behind the Sharp Price Increase This Week?
The primary driver of rising gas prices is escalating tension in the Middle East, specifically an intensifying conflict between the United States and Iran. This geopolitical situation has had direct consequences for global oil markets. Since early March, traffic through the Strait of Hormuz has been suspended, a critical chokepoint through which approximately 20 million barrels of oil flow daily under normal circumstances. That disruption alone represents a significant loss to global oil supplies and creates upward pressure on prices worldwide.
The Strait of Hormuz situation is particularly consequential because there is no easy alternative route for that volume of oil. It’s a physical geographic constraint—oil either flows through the strait or doesn’t, and when it doesn’t, markets immediately price in scarcity. Traders and oil companies are factoring in the risk that the strait could remain closed for an extended period, which is why prices have climbed 25 cents in just two weeks. The warning here is important: if the geopolitical situation escalates further or the strait remains closed longer than currently expected, prices could spike significantly beyond current levels.
How Much More Will You Spend This Summer on Fuel?
Heading into summer 2026, the outlook is for prices to remain elevated above $4 per gallon throughout the season. This is notably different from the same period last year, when drivers were paying roughly $3.25 per gallon. For someone taking a week-long summer vacation with two fill-ups per day at 15 gallons each, the cost difference is substantial: last summer might have cost $97.50 in gas for a week, while this summer could cost roughly $136 for the same trip—a difference of nearly $40 just for one week of driving.
There’s also a potential downside that’s worth considering. If the Strait of Hormuz remains closed or tensions escalate further, analysts warn that prices could climb to $5 per gallon or higher. That same week-long trip could then cost $150 or more in fuel alone. This is a meaningful risk, particularly for families with tight budgets or those planning multiple long road trips throughout the summer season.
What Practical Steps Can Drivers Take to Minimize Fuel Costs?
The most straightforward approach is to adjust your trip timing and route. Rather than driving during peak summer travel periods when demand is highest, consider taking your vacation in late May or early September when gas stations may see slightly lower demand. Carpooling with friends or family heading in the same direction can cut your fuel costs in half compared to driving alone. A family of four splitting a road trip essentially divides the fuel expense by four, turning a $300 fuel budget into $75 per person.
More tactical options include using fuel rewards programs from grocery stores and gas station loyalty apps, which can save you 10 to 40 cents per gallon depending on the promotion. However, the tradeoff is that you’re limited to specific stations, which may not always have the cheapest prices in your area. For longer trips, planning your route to avoid high-price states entirely is an option, though this only works if you have geographic flexibility. A driver heading from Arizona to California might deliberately add hours to avoid California’s $6+ prices by routing through Nevada or Utah first—a strategy that saves money if the time cost doesn’t outweigh the fuel savings.
What Could Push Prices Even Higher This Summer?
Several risk factors could drive prices above $5 per gallon before Labor Day. The most significant is any escalation in Middle East tensions that extends the Strait of Hormuz closure. If the Iran-US conflict intensifies, oil markets could price in extended disruption to that 20 million barrel daily flow, triggering rapid price increases. A single military event or miscalculation could cause prices to spike 50 cents to $1 per gallon within days, not weeks.
Additionally, hurricane season in the Gulf of Mexico (which runs through November) could disrupt domestic oil production and refinery operations. A major hurricane hitting Louisiana or Texas could take refineries offline temporarily, reducing supply when demand is already high from summer driving. The limitation in planning for this scenario is that hurricane forecasting only becomes reliable 5-10 days in advance, so you can’t budget for this uncertainty far ahead. What you can do is monitor price trends weekly and consider adjusting summer travel plans if prices approach $5 per gallon.
How Does This Compare to Previous Price Spikes?
The current price environment is notable but not unprecedented. During the 2022 energy crisis following Russia’s invasion of Ukraine, gas prices briefly exceeded $5 per gallon in many parts of the country.
At that time, supplies were disrupted from a major oil producer, and markets reacted swiftly. The current situation differs somewhat because the disruption is geopolitical tension rather than an outright invasion, and the affected volume (20 million barrels daily from the strait) represents roughly 20% of global oil supply rather than the 3-4% represented by Russian exports. This suggests the current situation is more severe in some ways, which is why analysts are warning about the potential for sustained prices above $4 and the risk of reaching $5 or higher if tensions don’t ease.
What Should You Expect for Gas Prices This Summer and Beyond?
Energy analysts expect gas prices to remain stuck above $4 per gallon through the summer season and potentially beyond, provided that the Strait of Hormuz situation doesn’t rapidly deteriorate or suddenly improve. If geopolitical tensions ease and shipping resumes through the strait, prices could gradually decline toward the $3.50-$3.75 range by September. However, that’s a best-case scenario that assumes no further escalation.
The more realistic outlook is that prices hold steady around $4.50 to $4.75 through July and August, with the possibility of temporary spikes if new tensions emerge. Planning your summer accordingly—by adjusting travel dates, using fuel rewards, considering carpooling, and monitoring weekly price trends—will help you adapt to whatever the market delivers. Checking AAA’s daily fuel price tracker before major trips is a simple step that can inform better budget decisions.
Conclusion
As Memorial Day weekend approaches, drivers should understand that $4.53 per gallon is the baseline cost they’re facing, with significant regional variation depending on where they live and drive. The primary cause is Middle East geopolitical tension disrupting global oil supplies, particularly the suspended traffic through the Strait of Hormuz. This situation is unlikely to resolve quickly, meaning elevated prices are a feature of the summer season, not a temporary blip.
Your best approach is to adapt your travel plans and fuel-purchasing behavior accordingly. Take advantage of loyalty programs, consider adjusting trip timing, and monitor prices weekly as you plan summer vacations. If you’re facing difficult budget decisions because of fuel costs, this is also an appropriate time to consider whether alternative transportation methods—flying on heavily discounted routes, or reducing discretionary road trips—might be more economical than driving across the country at current fuel prices. Stay informed about price trends and Middle East developments, as both will directly affect what you pay at the pump throughout the summer.