Filling up a tank of gas now costs American drivers more than it has at any point since the summer of 2022. The national average price of regular gasoline reached $4.55 a gallon as of the week ending May 4, 2026, according to the U.S. Energy Information Administration. That figure sits 46 cents below the all-time weekly record of $5.01 set in June 2022, the highest pump price the EIA has ever logged. And the force most likely to push the average even higher is not domestic demand or refinery output. It is a military standoff between the United States and Iran in the Strait of Hormuz that is threatening to spiral out of control.
Iran’s Revolutionary Guard navy has publicly warned that any attack on its oil tankers or commercial vessels will be met with a “heavy assault” on a U.S. base in the region and on American warships, according to reporting by the Associated Press. The threat followed a series of escalating confrontations: the U.S. military said it had intercepted Iranian attacks on three Navy ships in the strait, then struck Iranian military facilities it said were responsible. Both sides have accused the other of violating a fragile ceasefire whose terms neither government has made public.
Why the Strait of Hormuz controls your gas bill
According to the EIA, roughly 21 percent of all petroleum liquids traded by sea pass through the Strait of Hormuz, a narrow waterway between Iran and Oman that connects Persian Gulf producers to global markets. When tensions flare there, oil traders do not wait for tankers to be hit. They price in the risk immediately, bidding up crude futures that determine what refineries pay for their raw material. Those higher input costs travel through the supply chain fast, often reaching retail pumps within days.
The timing could hardly be worse. The EIA’s Weekly Petroleum Status Report for the week ending May 1, 2026, showed U.S. crude inventories already tightening and gasoline demand holding steady, conditions that leave almost no cushion if barrels are suddenly pulled from the global market. Summer driving season, which typically adds several hundred thousand barrels per day of gasoline demand, is just getting underway.
“When you see inventories this lean heading into Memorial Day weekend, you know the market has very little room to absorb a shock,” said Tom Kloza, global head of energy analysis at the Oil Price Information Service. “A Hormuz disruption would not just add a few cents. It would reprice the entire barrel overnight.”
How $4.55 stacks up against the 2022 peak
The EIA’s weekly data series, which is the federal government’s benchmark for tracking retail fuel costs, shows the current average sitting 46 cents below the $5.01 weekly record logged in June 2022. That record was set when a combination of post-pandemic refinery constraints, surging crude benchmarks, and strong consumer demand produced the highest pump prices in American history.
The trajectory matters as much as the gap. In the spring of 2022, prices climbed from roughly $4.50 in mid-May to $5.01 by mid-June. If crude benchmarks spike on a Hormuz disruption, a similar acceleration is plausible, though not guaranteed. Past episodes of Gulf tension, including the 2019 attacks on Saudi oil facilities and the January 2020 U.S.-Iran standoff after the killing of Qassem Soleimani, produced sharp but temporary price jumps that faded once the immediate threat receded.
“I budgeted $200 a month for gas last year. Now I’m over $300 and I haven’t changed my commute at all,” said Maria Delgado, a home health aide in Houston who drives roughly 80 miles a day between patient visits. Her experience is common. Across the country, drivers who depend on their vehicles for work are absorbing the increase with little ability to cut back.
What Iran’s threat actually means
The Revolutionary Guard’s warning is conditional: it is tied to an attack on Iranian vessels that has not yet occurred. That distinction matters. Iran has a long history of issuing maximalist threats through its military branches that function as deterrence signals rather than operational orders. Whether the Guard could sustain a direct assault on U.S. naval assets, which include carrier strike groups and guided-missile destroyers, is a question military analysts continue to debate.
What is clear is that the ceasefire is under severe strain. The intercepted attacks on three Navy ships suggest something more serious than routine posturing, though whether those incidents represent isolated provocations or a coordinated escalation remains unsettled. Neither Washington nor Tehran has released the ceasefire’s terms, making it difficult to judge how close the situation is to a genuine breakdown versus the kind of brinkmanship that has defined U.S.-Iran relations in the Persian Gulf for decades.
The White House has not announced any plans to tap the Strategic Petroleum Reserve or take other emergency measures to blunt the price surge, though the administration has said it is monitoring the situation closely. Congressional leaders from both parties have called for briefings on the ceasefire’s status and the military posture in the Gulf.
A domestic supply picture that was already tight
Even without a Hormuz crisis, the fundamentals were pushing prices upward before the standoff began. U.S. refinery utilization rates have been running below peak capacity, and domestic crude production, while near record levels, has not been enough to offset tightening global supply. OPEC+ production decisions continue to constrain output from major Gulf producers, keeping the global market leaner than it would otherwise be heading into the high-demand summer months.
Regional variation is significant. California and parts of the West Coast are already well above $5 a gallon, while some Gulf Coast and Midwest states remain closer to $4. The EIA collects its weekly price data through a standardized survey of retail stations across all 50 states, and the $4.55 figure includes taxes and reflects what drivers actually pay at the pump.
What happens if the ceasefire collapses
The next few weeks will test whether this price surge has a ceiling. If the U.S.-Iran ceasefire holds, even loosely, crude markets may gradually price out some of the risk premium, and gasoline prices could stabilize or ease slightly before the peak of summer demand. If the ceasefire collapses and Iran follows through on its threat, the market response would likely arrive well before any physical disruption to tanker traffic. Oil futures would spike on the news alone, dragging wholesale gasoline prices up with them.
For now, the verified picture is this: gas prices are high but not yet at record levels, the ceasefire is strained but not formally broken, and Iran’s threat is conditional rather than imminent. None of that is reassuring if you are filling up a tank this week. The $4.55 national average already reflects a combination of tight domestic supply and a growing geopolitical risk premium, and the situation in the Strait of Hormuz has the potential to compound both.
The 2022 record fell during a period when multiple factors aligned against consumers simultaneously. Whether 2026 follows the same path depends on decisions being made in Tehran, Washington, and OPEC+ capitals over the coming weeks. The only certainty is that the narrow waterway between Iran and Oman still has an outsized grip on what Americans pay to drive.
