Gas prices are climbing, and your fill-up at the pump will likely cost even more in June. The national average sits at $4.55 per gallon as of May 7, 2026, marking the second consecutive week of 25-cent increases. If current trends hold, experts project June averages could reach $3.40 to $3.60 nationally—representing prices at their highest level since 2022 and a staggering $1.40 higher than this same month last year. The culprit isn’t a single factor but rather a convergence of geopolitical crisis, seasonal demand, and refinery economics all tightening simultaneously.
The timing is particularly painful. Drivers are entering peak summer travel season when refineries switch to more expensive fuel blends and fuel demand naturally spikes. Meanwhile, crude oil prices remain elevated due to the Iran war, which has effectively shut down the Strait of Hormuz and choked global oil supply. For a family filling up twice a week, that $1.40 difference compared to May 2025 translates to roughly $145 more per year—real money for household budgets already straining under inflation.
Table of Contents
- How the Iran War Sent Gas Prices Soaring
- The Geopolitical Supply Squeeze Tightening at the Strait of Hormuz
- Summer Driving Season and Refinery Transitions Compound the Problem
- Refinery Margins and Profitability Driving Up What Stations Charge
- Low-Income Families Hit Hardest by Rising Gas Costs
- Regional Price Variations Reflect Local Supply and Tax Differences
- Looking Ahead—When (or If) Prices Come Down
- Conclusion
How the Iran War Sent Gas Prices Soaring
gas prices have surged 52 percent since the Iran war began in late February 2026, with regular gasoline jumping $1.56 per gallon over just a few months. This dramatic increase reflects the war’s direct impact on global oil supply: the Strait of Hormuz, one of the world’s most critical energy chokepoints, has become effectively unusable. Tankers carrying crude oil cannot safely navigate the waterway, leaving oil stranded and unable to reach refineries worldwide. The price spike in crude oil itself tells the story.
Brent crude oil—the global benchmark—jumped from $61 per barrel in January 2026 to $118 per barrel by the end of Q1. That doubling of crude costs filters directly to the pump within weeks. Unlike supply disruptions that might be temporary, this geopolitical crisis shows no signs of resolution. Every additional week of conflict risk keeps traders nervous and bidding up futures contracts, which in turn keeps spot prices elevated.
The Geopolitical Supply Squeeze Tightening at the Strait of Hormuz
The Strait of Hormuz is where roughly one-third of all globally-traded oil passes through each day. With the waterway effectively shut down, tankers are stranded, unable to complete their journeys to deliver crude to customers across Europe, Asia, and the Americas. This isn’t theoretical—it’s creating real inventory shortfalls at refineries that depend on that steady flow.
Even as refineries can source oil through alternate routes or draw down storage, those alternatives cost more and take longer, adding days to delivery times. The practical limitation here is that alternative shipping routes around the Cape of Good Hope add 10-14 days to delivery times and increase shipping costs significantly. Refineries that normally rely on just-in-time inventory management have been forced to lock in higher-cost oil from alternative suppliers or wait longer for their shipments. This supply uncertainty has also pushed crude costs higher than fundamental supply and demand alone would justify—traders are paying a “war premium” on top of the base price.
Summer Driving Season and Refinery Transitions Compound the Problem
June through August represents peak driving season in North America, when Americans take vacations, road trips, and generally consume significantly more gasoline. Simultaneously, refineries transition to summer fuel blends, which contain additives designed to reduce evaporative emissions in hot weather. These summer blends are more expensive to produce than winter blends, adding roughly 10-15 cents per gallon to production costs during this season.
This is a predictable, annual squeeze—but it’s hitting at the worst possible moment. Last summer, refineries weren’t also dealing with a global oil supply crisis and doubled crude prices. The combination of seasonal demand, seasonal blend costs, and current supply constraints creates a perfect storm. A driver who paid $3.15 per gallon for summer gasoline last June is now facing prices 40 cents higher, and the season has only just begun.
Refinery Margins and Profitability Driving Up What Stations Charge
Beyond crude oil and seasonal factors, refinery margins have widened significantly. Distillate crack spreads—a measure of refinery profitability—hit $1.42 per gallon in March 2026, their highest level since 2022. This spread represents what refineries earn after paying for crude oil and accounting for their operating costs. When crack spreads are high, refineries are making exceptionally strong profits, and they have less incentive to cut prices to move product.
The warning here: high crude prices alone don’t fully explain high gas prices. Even if crude came down, refineries could choose to absorb more of the price difference as profit rather than pass savings along to drivers. Taxes also play a role—multiple states have adjusted or ratcheted up fuel taxes in recent years—and all three factors are working simultaneously. A consumer looking only at crude oil prices and wondering why gas is so expensive is missing the fuller picture of refinery margins and tax structures that significantly impact what you pay at the pump.
Low-Income Families Hit Hardest by Rising Gas Costs
The burden of high gas prices falls disproportionately on lower-income households. In March 2026, low-income Americans spent 4.2 percent of their household income on gasoline, compared to just 2.7 percent for wealthier households. That difference becomes a real hardship: a family earning $30,000 annually is spending an extra $450-$500 compared to a family earning $100,000, while potentially working jobs that require a car commute without viable public transit alternatives. This creates a cascading impact on family budgets.
Higher transportation costs compress spending on food, childcare, and other essentials. For families already living paycheck to paycheck, a $1.40 per gallon increase isn’t an inconvenience—it’s a crisis. Additionally, low-income families are least able to absorb costs through efficiency improvements like buying a more fuel-efficient vehicle, which requires upfront capital. They’re also more likely to live in rural or suburban areas where public transportation doesn’t exist, making a car non-negotiable rather than optional.
Regional Price Variations Reflect Local Supply and Tax Differences
Gas prices aren’t uniform across the country. California regularly pays 30-50 cents more per gallon than the national average due to its unique fuel blend requirements and state excise taxes. The Midwest typically enjoys prices closer to the national average, while some Gulf Coast states pay less due to proximity to refineries.
During supply disruptions or seasonal transitions, these regional differences can widen further. As summer approaches, expect California and the Northeast to see particularly aggressive price increases because they have stricter environmental fuel requirements and existing supply constraints. A driver in Sacramento might pay $5.10 per gallon while a driver in Houston pays $4.15 for the same product, reflecting both tax policy and regulatory choices. Understanding these regional factors helps explain why a national average of $3.40-$3.60 for June masks dramatic local variation.
Looking Ahead—When (or If) Prices Come Down
Gas price declines depend almost entirely on geopolitical developments. If the Iran war de-escalates and the Strait of Hormuz reopens to normal traffic, crude prices would likely fall sharply—potentially dropping $30-40 per barrel in a matter of weeks. That would ripple through to the pump within a month or so. However, if the conflict continues or intensifies, elevated prices will likely persist through the summer and potentially into fall.
The summer driving season will continue putting upward pressure on prices through August, even if geopolitical tensions ease. Historically, gas prices typically decline in September when summer blend demand ends and refineries switch back to cheaper winter blends. But that’s a three-month wait for drivers already struggling with $4.50+ prices. The forward-looking reality is that prices above $4.00 may become the new normal for an extended period unless geopolitical stability returns quickly.
Conclusion
Drivers face higher gas prices in June because of overlapping pressures: a global crude oil crisis from the Iran war, the seasonal transition to expensive summer fuel blends, predictable summer driving demand, and refinery margins at their widest levels since 2022. The national average is already at $4.55 per gallon and projected to reach $3.40-$3.60 in June, with regional variations pushing some areas toward $5.00 per gallon. This isn’t temporary volatility—it’s structural pressure likely to persist for months.
The human cost is most acute for low-income families who spend 4.2 percent of income on gasoline and have few alternatives to driving. If you’re concerned about upcoming fuel costs, the practical path forward is to monitor geopolitical news and prepare for a prolonged period of elevated prices. Fuel-efficient driving, carpooling, or shifting discretionary driving to off-peak seasons are near-term options. Long-term price relief depends on either de-escalation of the Iran conflict or significant changes to crude supply routes—neither is guaranteed in the next 30-60 days.