Why Gas Prices Haven’t Surged Despite Iran Closing the Strait of Hormuz
In early March 2026, Iran announced it had closed the Strait of Hormuz in retaliation for U.S. And Israeli strikes, raising immediate concerns about a spike in global oil prices and gasoline costs at the pump. The Strait of Hormuz is a vital maritime chokepoint, with approximately 20% of the world’s oil flowing through it daily—equivalent to about 20 million barrels per day, according to the U.S. Energy Information Administration.
Despite the closure and reports of damaged tankers and stranded vessels, U.S. National average gasoline prices increased by only about 18 cents from March 1 to March 3, 2026, according to GasBuddy data cited in multiple reports. This modest rise contrasts sharply with the 25% increase in Brent crude oil prices during the same period, which hovered near $83 per barrel by midday March 3.
Several factors explain why the impact on U.S. Gas prices has been limited so far. First, the United States imports relatively little crude oil directly from the Persian Gulf. Most U.S. Oil imports approach from Canada, Mexico and domestic production, reducing direct vulnerability to Hormuz disruptions. Second, global oil markets have shown resilience due to existing inventories and strategic petroleum reserves, which can buffer short-term supply shocks. Third, the closure, although significant, has not resulted in a complete halt to all oil flows, as some shipments continue via alternative routes or are delayed rather than canceled outright.
market analysts note that oil price increases do not always translate immediately or proportionally to retail gasoline prices due to refining capacity, regional fuel blends, taxes, and station-level pricing strategies. As one finance professor observed in a Newsweek interview, any meaningful decline in gas prices following a potential reopening of the strait would likely take months—or even up to a year—to fully materialize at the pump, suggesting that price movements in either direction are gradual.
While the situation remains fluid and geopolitical tensions continue, the initial market response indicates that the U.S. Consumer has so far been shielded from the full brunt of the Hormuz closure, thanks to a combination of energy independence, market buffers, and the complex dynamics of global oil pricing.