Filling up a mid-size SUV now costs north of $60 in most of the country, and the number keeps climbing. Regular gasoline hit $4.11 per gallon nationally in the U.S. Energy Information Administration weekly retail price report for the week ending April 21, 2026, the highest level since the post-invasion spike of 2022. The culprit, according to both federal forecasters and independent economists, is the ongoing U.S.-Iran military conflict, which has choked off crude oil supplies and injected deep uncertainty into global energy markets.
For the average American household, the damage is adding up fast. Researchers at Stanford University’s Institute for Economic Policy Research estimate that the conflict will pile an extra $857 onto household gasoline bills over the remaining months of 2026 (roughly May through December), compared with what families would have paid under pre-conflict price expectations. That partial-year figure assumes two vehicles and typical driving patterns, and it lands hardest on lower- and middle-income households that spend a larger share of their budgets at the pump.
Two forecasts, two timelines
Where prices go from here depends on whom you ask. The EIA’s Short-Term Energy Outlook projects the national average will crest around April 2026, suggesting the worst may be only weeks away. Stanford’s SIEPR team sees the peak arriving later, in May 2026, with the national average pushing above $4.25 per gallon before easing.
The one-month gap reflects genuine disagreement about how quickly the market can adjust. The EIA’s model gives more credit to potential releases from the U.S. Strategic Petroleum Reserve and to OPEC members ramping up output to fill the gap left by sanctioned and disrupted Iranian barrels. Stanford’s researchers are more skeptical, arguing that rerouting global crude flows during active military operations takes longer than peacetime models assume and that refining bottlenecks will keep retail prices elevated even if crude costs stabilize.
Both forecasts agree on the underlying mechanics: the Iran conflict has tightened global oil supply at a moment when seasonal demand is rising as Americans gear up for summer driving. That combination is a textbook recipe for sustained price pressure.
What $857 actually looks like at the kitchen table
National averages can feel abstract, so consider the math at the household level. A family that was spending roughly $200 a month on gasoline before the conflict escalated could see that figure jump by $70 or more per month under the Stanford scenario. Because the $857 estimate covers only the remaining months of 2026 rather than a full calendar year, the monthly impact is steeper than a simple twelve-way split would suggest. That added burden rivals what many middle-income families hold in emergency savings, according to Federal Reserve survey data showing that roughly 37% of Americans would struggle to cover an unexpected $400 expense.
The burden is not evenly distributed. Drivers in California, where state taxes and reformulated fuel requirements already push prices well above the national average, are likely paying closer to $5 a gallon. Rural commuters with long drives and no public transit alternatives face steeper costs than city dwellers who can shift to buses or trains. And households driving older, less fuel-efficient vehicles absorb a bigger hit per mile than those behind the wheel of hybrids or EVs.
What Washington is weighing
The price spike has renewed calls on Capitol Hill for a federal gas tax holiday, a measure that was debated but never enacted during the 2022 price surge. The current federal excise tax of 18.4 cents per gallon would offer modest relief if suspended, though economists have long warned that suppliers tend to capture a portion of any tax cut, blunting the benefit to consumers.
Significant SPR drawdowns were authorized in 2022, and the reserve has since been only partially refilled. Any new release would provide a short-term supply cushion but would further deplete a stockpile designed for genuine emergencies. No decision has been announced as of late April 2026, though officials have signaled that all options remain on the table.
The hard data vs. the projections
Readers tracking this story should keep two categories of information separate. The $4.11 per gallon figure is an observed measurement, collected from gas stations nationwide and published by the EIA for the week ending April 21, 2026. It reflects what drivers actually paid during that reporting period, and it is the most reliable number in this discussion.
The $857 cost increase and the $4.25 national-average peak are modeled projections from Stanford’s SIEPR. They are built on credible assumptions about crude prices, refining margins, and conflict duration, but they are not guarantees. If the Iran situation de-escalates faster than expected, or if Saudi Arabia and other producers flood the market with additional barrels, the peak could arrive sooner and lower than either forecast anticipates. Conversely, an expansion of the conflict to other Gulf shipping lanes could push prices well beyond current projections.
The most useful signals to watch in the weeks ahead are the EIA’s weekly price updates, any official announcements on SPR releases, and OPEC production decisions. Until those data points arrive, the $4.11 figure is the firm ground beneath a landscape of informed but uncertain estimates.
Why the window through May 2026 matters most
Neither forecast promises a quick return to pre-conflict prices once the peak passes. If military operations continue through the summer, the plateau after the crest could stretch for months, keeping household fuel bills elevated even if the national average never climbs far beyond $4.25. For families already adjusting grocery lists and cutting discretionary spending to cover the difference, the duration of high prices matters just as much as the peak itself.
Updated EIA data and any revisions to the Stanford or federal forecasts will sharpen the picture. For now, the $4.11 on the pump is not a projection or a warning. It is the price millions of Americans paid during the most recent reporting week, and the best available evidence says it is heading higher before it heads lower.
David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
