There’s a certain kind of helplessness that comes over you when you stand at any gas station in America right now and watch the numbers on the pump tick upward. It’s not quite panic, but it’s more subdued and persistent. Midway through March, the price of regular gasoline surpassed $3.96 per gallon, up almost $1 from two weeks prior. Diesel surpassed $5.37.
The trucks that transport produce from California’s Central Valley to grocery stores in Ohio, the farm machinery that harvests Kansas’ wheat fields, and the fishing boats that deliver the catch that will be displayed behind glass at the seafood counter by Thursday are just a few examples of what diesel really powers. The pain begins with the pump’s price. It doesn’t end there.
| Topic | Iran War Energy Shock — Impact on U.S. and Global Supply Chains & Consumer Prices (2026) |
|---|---|
| Conflict | U.S.-Israeli military strikes on Iran; began late February/early March 2026 |
| Key Chokepoint | Strait of Hormuz — handles ~20% of world’s crude oil, ~90% of Gulf LNG shipments |
| U.S. Gas Price Change | Regular gasoline: $3.01 → $3.96/gallon (Mar 2–16, 2026); Diesel: $3.89 → $5.37/gallon |
| Projected Gas Price Peak | Over $4.25/gallon by May 2026 (Goldman Sachs/SIEPR model) |
| Estimated Household Impact | Average U.S. household to pay ~$857 more in gasoline costs for remainder of 2026 |
| Jet Fuel Surge | ~75% increase since war began; airlines facing major cost pressure |
| Affected Regions | U.S., Europe, Asia (China, Japan, Taiwan, South Korea), Africa, Middle East |
| Key Products at Risk | Fertilizer, plastics, medicines, electronics, appliances, textiles, food |
| Airspace Closures | Qatar, Bahrain, Kuwait, UAE — affected ~20% of global air cargo capacity |
| Lead Analysts | Neale Mahoney & Ryan Cummings, Stanford Institute for Economic Policy Research (SIEPR) |
| Reference | Stanford SIEPR — What Spiking Gas Prices Mean for Consumers |
A conflict that intensified more quickly than most analysts anticipated is the direct cause. A fifth of the world’s crude oil normally passes through the Strait of Hormuz, which is a narrow passage between the Persian Gulf and the Gulf of Oman. The U.S. and Israeli military strikes on Iran, which started in late February, have done what conflicts in that region always threaten to do but rarely fully achieve: they have disrupted it. The entire structure of the world’s energy supply must adapt when that strait becomes quiet, when the tankers cease to move and the insurance rates for those who do try to pass increase to many times their usual level. Additionally, improvisation is always costly in logistics.
The Wall Street Journal and The New York Times have both taken notice of the specificity with which researchers at the Stanford Institute for Economic Policy Research have been running the numbers. They make a straightforward prediction: they predict that gas prices will surpass $4.25 per gallon in May based on Goldman Sachs’ most recent forecast, which assumes minimal Strait of Hormuz traffic through early April. They estimate that the average American household will spend about $857 more on gas during the rest of the year than they would have before the war started. Even by itself, that number is noteworthy. However, it only depicts one aspect of the situation—possibly not the most important one.
The wider economy is most severely impacted by the spike in diesel prices. The supply chain is powered by diesel in ways that gasoline just cannot. The great majority of domestic freight in the US is transported by diesel-powered trucks, including consumer goods arriving from ports, building materials, food, and medical supplies.
Every company in that chain must decide whether to absorb the cost or pass it on when diesel prices increase by almost forty percent in just two weeks, as they have. Most people can’t take it indefinitely. The increases will be passed on by the trucking companies, food distributors, and local manufacturers, and they will take weeks or months to reach store shelves. This means that consumers who currently feel relatively protected are witnessing an impending wave.
There is more to the disruption than just fuel. Following Iranian attacks on the plant, QatarEnergy, which runs the largest liquefied natural gas export facility in the world at Ras Laffan, announced in early March that it was unable to fulfill its contracts. The company stated that it would take years to recover from the attacks. Urea, polymers, and methanol—the raw materials for fertilizer, plastics, packaging, and detergents—are among the goods impacted by that disruption.
These are not high-end products. They are the materials used to grow, package, and transport food. Reduced fertilizer supply raises agricultural costs, which raises food prices that show up at the grocery store long after the war’s initial headlines have subsided. The public typically experiences the peak effects of energy shocks months after the decisions that caused them, which contributes to the difficulty of managing them politically.
The Gulf has not been immune to the disruptions. In the early stages of the conflict, a number of nations in the region, including Qatar, Bahrain, Kuwait, and the United Arab Emirates, closed their airspace to all traffic and issued advisories alerting people to the dangers in nearby corridors.
Pharmaceutical components, aircraft parts, and semiconductor wafers headed for Asian factories were among the time-sensitive shipments that could face significant delays as a result of that closure, which eliminated about 20% of the world’s air cargo capacity. Airlines have been canceling routes and drastically increasing fares on those that remain in order to cope with the skyrocketing cost of jet fuel, which has increased by about 75% since the start of the war.
For routes that typically cost a fraction of that, passengers who are stuck in the area have reportedly been quoted fares of several thousand euros. On some departures, private jet operators are allegedly charging twenty thousand pounds per seat. In other words, the mobility market has split along the lines of those who can and cannot afford to pay whatever it takes.
It’s important to pay close attention to the ripple effects that reach Asia. With the great majority of Gulf LNG shipments going to Asian markets, the manufacturing economies of China, Japan, Taiwan, and South Korea rely significantly on Gulf energy imports. These nations are currently using their current inventories and energy reserves, but the limits of those buffers are expressed in months rather than years.
Reduced energy availability will force factories to prioritize their highest-value output and scale back everything else if Hormuz traffic is restricted past early spring. As a result, consumer electronics, auto parts, appliances, and textiles that flow from Asian manufacturing into Western retail chains will start to arrive in smaller quantities and at higher prices. Although it’s still unclear when American consumers will notice those shortages, the trend is clear.
Watching all of this unfold in slow motion is especially frustrating because you know that the mechanisms are operating exactly as economic research suggests, but you are essentially powerless to stop them. Regarding policy options, the Stanford researchers are direct: releasing stocks from the Strategic Petroleum Reserve could temporarily reduce the price of gasoline by a few cents. Increasing the amount of ethanol blended is somewhat beneficial. Fuel tax suspension is both financially and politically challenging.
The truth is that, aside from reopening the Strait of Hormuz, there isn’t much that governments can do to significantly stop what is happening in the near future. The rockets ascend quickly. As economists say, “the feathers come down slowly.” No policy briefing can adequately convey the reality of that metaphor when American households fill up their gas tanks in May and reach for a grocery bill that differs from the one they recall in January.
