Gas Prices Rising Again As Iran War Escalates

By iHeartRadio

July 20, 2026

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Photo: MATTHEW HATCHER / AFP / Getty Images

Gas prices are on the rise again as tensions between the U.S. and Iran escalate, leading to disruptions in the Strait of Hormuz. The average price for a gallon of regular gasoline in the U.S. reached $4 on Monday (July 20), up from $3.87 a week ago, according to AAA. This increase follows Iran's recent attacks on oil tankers in the strait and the U.S.'s decision to impose a blockade on this critical shipping lane for Middle Eastern oil.

The Strait of Hormuz, through which about one-fifth of the world's oil trade passes, has become a focal point of conflict. According to The Guardian, both the U.S. and Iran have declared themselves as protectors of safe passage through the waterway. However, the U.S. recently announced a blockade on Iranian ports, further complicating the situation.

Oil prices have surged as a result of these developments. KCRA reports that U.S. crude oil prices hit $80 a barrel, while Brent crude rose to $86.88 a barrel, marking a one-month high. The conflict has led to a decrease in the number of vessels passing through the strait, with only 14 ships able to navigate the waterway on Sunday.

The economic impact of the rising oil prices is already being felt across the U.S. According to AAA, diesel prices have also increased, averaging $5.10 per gallon. This rise in fuel costs is expected to affect consumers nationwide, as diesel is essential for transporting goods.

As the conflict continues, analysts warn that gas prices may climb even higher. The situation remains fluid, with potential for further escalation impacting the global oil market and consumer prices.

This story originally appeared in iHeartRadio

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