Gas Prices Surge as Oil Spikes Amid Iran War. Here's How Much Americans Are Paying.

March 10, 2026

TL;DR

The average national cost of gas is $3.48 per gallon, up 48 cents from last week, largely due to the U.S.-Israeli war with Iran causing oil prices to exceed $100 per barrel.
California has the highest average gas price at $5.20 per gallon, while Kansas has the lowest at $2.92.
Diesel prices have also surged, rising 89 cents to $4.66 per gallon.
The disruption of oil flow through the Strait of Hormuz is a primary driver of these price increases.
President Trump has stated the U.S. has a plan to keep energy markets stable and has threatened Iran if it blocks the Strait of Hormuz, describing the oil price rise as a 'short-term' increase and a 'very small price to pay for U.S.A., and World, Safety and Peace.'
Experts predict average gas prices could reach $4 per gallon and remain elevated until at least the fall due to seasonal demand and the ongoing security situation.
Lower-income households are expected to be most affected, cutting back on discretionary spending, while higher-income households are predicted to maintain consumer spending.
The U.S. International Development Finance Corporation will insure ships sailing through the Persian Gulf to alleviate oil supply pressures.

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