US Gasoline Prices Climb as Mideast Tensions, Tight Supplies Push Crude Oil Higher

U.S. drivers are facing higher costs at the pump after weeks of declines, as a surge in crude oil prices driven by geopolitical tensions and tightening fuel supplies reversed the downward trend. The national average for a gallon of gasoline rose by 6 cents this week to $3.88, the largest weekly increase since mid-May, according to data from AAA.

Geopolitical Risks Rattle Oil Markets

The primary driver for the price jump was a sharp increase in global oil benchmarks following renewed conflict between the U.S. and Iran. Attacks on several tankers in the Strait of Hormuz, a critical waterway for global energy shipments, sent Brent crude futures on track for a weekly gain of roughly 5.5%, their biggest in eight weeks.

"Gasoline prices have rallied alongside the massive move higher in crude oil after several tankers in the Strait of Hormuz were attacked," said Alex Hodes, director of energy market strategy at brokerage StoneX. Before the conflict began, the strait was responsible for the transit of about 20% of the world's daily oil and gas supplies, and current flows remain well below those levels.

Tight Inventories and Robust Exports

Beyond rising crude prices, a convergence of supply-side factors is squeezing the market. Unplanned refinery outages in both the U.S. and Russia have constrained fuel production, while robust U.S. exports are sending more product overseas. Key U.S. disruptions included Marathon Petroleum's Detroit refinery and Delta's Trainer, Pennsylvania, facility.

This has put significant pressure on domestic stockpiles, with key data from the Energy Information Administration (EIA) showing:

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• U.S. gasoline inventories fell by 1.9 million barrels last week to 212.1 million barrels.
• National stockpiles are now nearly 10 million barrels below the five-year average for this time of year.
• The U.S. Gulf Coast, the nation's refining hub, saw inventories fall to 76.4 million barrels, well below the five-year average of 82.3 million.

At the same time, the U.S. has become a critical swing supplier to the global market. EIA data showed U.S. petroleum product exports hit a weekly record of 8.7 million barrels per day in the week ending July 3.

Political Pressure and Market Outlook

The price increase comes during the peak U.S. summer driving season and has become a political issue for the Trump administration ahead of November's midterm elections. President Trump has accused oil companies of price gouging and urged the Justice Department to investigate.

Looking ahead, market dynamics suggest continued volatility. "It seems prices will mostly drift up and down here in the short-term," said Denton Cinquegrana, chief oil analyst at Dow Jones Energy, pointing to the competing pressures on the market.