Iran war sits at the center of this dementia and brain health question.

The Iran War, which began on February 28, 2026, triggered a rapid and significant increase in gas prices across America. As of late March 2026, the national average gasoline price reached $3.96 per gallon—up 23 cents in just one week and $1.02 from a month earlier. For families managing dementia care, these price increases have immediate and measurable consequences: higher costs for transporting elderly relatives to medical appointments, increased expenses for home health aides’ travel, and mounting pressure on household budgets already stretched thin by care-related expenses.

This article explains what caused the price surge, how widely it varies across regions, and what the ongoing situation means for American families and healthcare costs. The primary cause is Iran’s blockade of the Strait of Hormuz, a critical global oil shipping route. This blockade has created what the International Energy Agency (IEA) calls “the largest supply disruption in global oil market history,” with flows collapsing from 20 million barrels per day and Gulf production declining by at least 10 million barrels daily. Oil prices jumped from approximately $70 per barrel in late February to nearly $120 per barrel at peak, then settling around $100 per barrel—a 38% increase that cascades directly into higher prices at the pump.

What Happened to Oil and Gas Prices During the Iran War?
How These Price Increases Get Passed to American Drivers
Regional Price Disparities Across the United States
The Daily and Monthly Impact on American Households and Healthcare Costs
What Makes This Supply Disruption Different from Past Oil Shocks
The Timeline: From War Start to Peak Impact
What Comes Next? Long-Term Outlook and Uncertainty
Conclusion

What Happened to Oil and Gas Prices During the Iran War?

oil and gasoline prices are directly linked, though not identical. When oil prices spike due to reduced global supply—as happened with iran‘s Strait of Hormuz blockade—wholesale gas prices follow almost immediately. Within weeks of the war’s start, crude oil prices rose from approximately $70 to $100 per barrel, a $30 increase per barrel that translates to roughly 80 cents per gallon at the pump. The peak came about one week after war began, when oil touched nearly $120 per barrel, but even as it settled slightly, prices remained far above pre-war levels.

The scale of this supply disruption is historically unusual. The IEA’s assessment—that this represents the largest global oil market disruption on record—reflects just how critical Iranian oil exports are to global markets. When Iran closed the Strait of Hormuz, approximately 10 million barrels per day of Gulf production was cut off, representing nearly 10% of global oil supply. For perspective, past oil shocks (the 1973 Arab embargo, the 1990 Gulf War) disrupted far smaller volumes. This explains why gas prices at American pumps rose so rapidly and so substantially in such a short timeframe.

What Happened to Oil and Gas Prices During the Iran War?

How These Price Increases Get Passed to American Drivers

The journey from crude oil price to pump price is not one-to-one, but it’s direct and relatively fast. Refineries buy crude oil at wholesale prices, process it into gasoline, and sell it to distributors and gas stations. When crude prices jump 38% in a month, stations begin raising prices within days. However, other factors also affect what you pay: taxes, distribution costs, refinery capacity, and retailer profit margins all play a role. Diesel prices, used by trucks and delivery vehicles, have risen even more sharply than gasoline—now just under $5 per gallon, up $1.34 from February—because diesel fuel experiences both the crude price shock and separate supply constraints. One important caveat: not all gas price increases are purely due to oil prices.

Refinery maintenance, regional demand, and seasonal blends also matter. However, the timing here is unmistakable—the massive price jumps occurred directly after the war began and the blockade took effect. Regional variations also show this pattern unevenly. Washington state’s average of $5.27 per gallon is substantially higher than the national average of $3.96, while Spokane sits at $4.90. Colorado has experienced a 35% price increase, outpacing the national average. These regional differences reflect local refinery capacity, distribution networks, and state fuel requirements.

Regional Price Disparities Across the United States

Not all Americans are experiencing the same gas price shock. On March 23-25, 2026, prices varied significantly by geography, with West Coast states hit hardest. Washington’s average of $5.27 per gallon means a family filling a 15-gallon tank pays roughly $79 instead of the $60 it would have cost two months earlier. Spokane, despite being in the same state, shows slightly lower prices at $4.90, likely due to different local refinery access and distribution patterns.

Colorado’s 35% price increase actually exceeds the national average percentage increase, suggesting either tighter regional supply or different market dynamics. For families caring for loved ones with dementia, these regional differences matter tremendously. A caregiver in Washington state faces dramatically higher transportation costs than someone in a lower-priced region. If a dementia patient requires weekly medical visits or a caregiver needs to drive daily, the difference between $3.96 and $5.27 per gallon adds hundreds of dollars monthly to household expenses. This disparity also affects the cost of hiring home health aides or transport services—their costs inevitably rise with fuel prices, and those increases are passed to families.

Regional Price Disparities Across the United States

The Daily and Monthly Impact on American Households and Healthcare Costs

Americans collectively are paying approximately $300 million in additional fuel costs daily due to the war-driven price spike. For an individual household, this translates differently depending on driving patterns. A family that drives 15,000 miles annually (roughly average) in a vehicle averaging 25 miles per gallon needs 600 gallons yearly. At $2.94 per gallon (pre-war baseline), that’s $1,764 annually. At $3.96 per gallon (current), that same driving costs $2,376—a $612 yearly increase, or about $51 monthly. For families managing dementia care alongside other expenses, this $51 monthly hit compounds quickly.

The impact is particularly acute for healthcare-related driving. A dementia patient requiring weekly neurologist visits, monthly check-ups, and occasional emergency trips generates substantially more driving than average. Add in costs for home health aides whose mileage expenses are reflected in their hourly rates, and caregiving families face a compound effect. A home health aide earning $18 per hour will typically see a portion of that wage pressure adjusted upward to cover their driving costs—and when fuel prices jump 38%, those adjustments add up. Some families also rely on medical transport services, which have raised rates in response to fuel costs. The war’s price shock thus cascades beyond the pump into the broader cost of dementia care.

What Makes This Supply Disruption Different from Past Oil Shocks

The Iranian blockade of the Strait of Hormuz is not just another geopolitical disruption—its scale and timing make it historically significant. The IEA’s declaration that this represents “the largest supply disruption in global oil market history” reflects the sheer volume of oil affected. Approximately 10 million barrels per day of Gulf production were cut off, representing roughly 10% of total global supply. To compare: the 1973 Arab embargo cut roughly 5% of global supply, and the 1990 Gulf War disrupted less than that in absolute terms.

What amplifies the current situation is the speed of the disruption combined with the interconnectedness of modern global markets. In 1973, the embargo took weeks to fully impact American pump prices. In 2026, oil market futures reacted immediately, and gas station prices followed within days. Additionally, refineries around the world were already operating near capacity, leaving little buffer stock to absorb the Iranian supply loss. This means the full impact flows directly to consumers rather than being cushioned by strategic reserves or excess capacity—leaving American drivers facing steep increases with little lag time for adaptation.

What Makes This Supply Disruption Different from Past Oil Shocks

The Timeline: From War Start to Peak Impact

The progression from war declaration to peak prices happened with stark speed. On February 28, 2026, Iran and allied forces began military operations, immediately moving to blockade the Strait of Hormuz. Within 24-48 hours, crude oil futures markets reacted sharply, with Brent crude beginning its climb from the ~$70 baseline. By early March, oil reached $100 per barrel. The peak came approximately one week into the conflict, when prices touched nearly $120 per barrel—a stunning 71% surge from pre-war levels.

Gas station prices, which lag wholesale oil by a few days, began showing dramatic increases around March 3-5 and continued climbing through mid-March. By March 22-25 (the current timeframe), the national average had stabilized somewhat at $3.96 per gallon, but it remains historically elevated. However, “stabilized” is relative—prices remain 23 cents higher than the previous week and show no signs of declining rapidly. The blockade continues, supply remains constrained, and there is no clear timeline for resolution. Families made decisions about transportation and care arrangements during early March when prices were rising; now, three and a half weeks later, those decisions must be re-evaluated as the new price levels become the baseline expectation rather than temporary shock.

What Comes Next? Long-Term Outlook and Uncertainty

The durability of current gas prices depends entirely on how long the war persists and whether the Strait of Hormuz blockade holds. If the conflict ends within days or weeks, markets could see rapid price declines as oil flows resume and strategic reserves are released. However, if the war extends for months or the blockade remains in place, current elevated prices could become the new normal. The Al Jazeera assessment notes that “the oil and gas price shock from the Iran war won’t just fade away”—suggesting even if military conflict ends, market psychology and supply chain recalibration will sustain higher prices for an extended period.

For American families and the dementia care sector, this means planning for sustained higher fuel and transportation costs through at least mid-to-late 2026. Healthcare facilities, home health agencies, and medical transport services are already adjusting their pricing models upward. Families should reconsider transportation strategies, explore options like consolidating medical appointments, or discussing home-based care alternatives that reduce travel demands. The war that began on February 28 has already reshaped the economics of American transportation and healthcare access—and the full implications will continue unfolding as the situation evolves.

Conclusion

The Iran War’s impact on American gas prices is direct, measurable, and substantial. The national average of $3.96 per gallon as of late March 2026 represents an $1.02 increase from February and reflects a 38% jump in crude oil prices caused by Iran’s blockade of the Strait of Hormuz. This blockade created what the International Energy Agency calls the largest global oil market disruption in history, cutting 10 million barrels daily from global supply. For Americans generally, this means approximately $300 million in additional daily fuel costs.

For families managing dementia care, these price increases translate into higher transportation costs for medical visits, increased expenses for hired caregivers, and mounting pressure on already strained household budgets. The coming weeks and months will clarify whether these price increases prove temporary or sustained. Geopolitical resolution could bring relief, but even optimistic analysts expect elevated prices to persist for months due to supply chain recalibration. For now, families should monitor developments, reassess transportation routines, and seek ways to consolidate trips or reduce driving demands. The war that began four weeks ago has already changed the practical economics of caregiving in America, and its effects will continue rippling through healthcare systems and family budgets as long as the conflict persists.