The average price of gasoline in the United States has climbed to $4 per gallon as intensifying conflict between the U.S. and Iran disrupts oil shipments through the Strait of Hormuz. According to the American Automobile Association (AAA), this threshold—first breached on March 31—reflects a significant volatility in global energy markets fueled by geopolitical instability and supply chain constraints.
Geopolitical Tensions and the Strait of Hormuz
Before the conflict, the average price for a gallon of gas sat at $2.98. The subsequent blockade of the Strait of Hormuz by Iranian forces trapped oil tankers, driving prices to a four-year high of $4.56 in early May. While a memorandum of understanding on June 14 briefly brought prices below $4 a few days later, renewed hostilities have reversed that trend.
According to market data, the average price has risen by approximately 13 cents over the past week alone. This increase is mirrored in the crude oil market; Brent crude recently climbed above $90 a barrel, marking a 16% increase over the same seven-day period. West Texas Intermediate, the U.S. benchmark, has seen a price hike of roughly $12 per barrel throughout the current month.
Did you know? While the national average has hit $4, prices vary significantly by region. California currently reports the highest average at $5.49 per gallon, while Indiana records the lowest at $3.35, according to AAA data.
Global Market Pressures and Refining Shortages
Geopolitical conflict in the Middle East is not the sole driver of current pump prices. Tom Kloza, an independent oil analyst and advisor to Gulf Oil, points to drone attacks on Russian refineries as a secondary, critical factor. Historically a net seller of gasoline, Russia has been forced to import fuel due to these attacks, straining the global supply chain.
“Russia has had to import gasoline, whereas they’ve been a net seller for many, many years,” Kloza said. “It has raised fears in markets of a refined product shortage. And no matter how much gasoline we make here, it is a global market.”
Market Outlook Through Labor Day
Consumers should not expect immediate relief at the pump. Kloza notes that the current trajectory of gasoline futures suggests an additional increase of 10 to 25 cents per gallon in the coming week. This upward pressure is compounded by the peak U.S. driving season, which typically sees maximum demand for fuel. Analysts expect this high demand to persist through the Labor Day holiday.
Pro Tip: Gas prices are influenced by global futures markets.
Frequently Asked Questions
Why is the price of gas rising if the U.S. produces oil?
Gasoline is traded on a global market. Even with domestic production, supply disruptions in key transit points like the Strait of Hormuz or reduced refining capacity in other nations affect the global price of crude, which dictates costs at local U.S. stations.
When will gas prices drop below $4 again?
There is no immediate expectation for a price decline. Analysts suggest that the current market conditions, including geopolitical tensions and high seasonal demand, will keep prices elevated through at least the Labor Day period.
Which states have the highest and lowest gas prices?
According to AAA, California, Washington, and Hawaii currently lead the country with averages exceeding $5 per gallon. Conversely, Indiana remains among the most affordable, with averages near $3.35 per gallon.
How are these price hikes affecting your travel plans this season? Share your thoughts in the comments below or subscribe to our newsletter for weekly energy market updates.
Update (July 20, 2026)
According to apnews.com, the recent volatility is tied to the collapse of an interim agreement between Washington and Tehran that had briefly cooled energy prices. As the U.S. intensifies airstrikes against Iran, vessel crossings in the Strait of Hormuz fell 50% last week compared to the previous week, with S&P Global Energy analysts noting that mainstream shipowners remain cautious about transiting the waterway.
White House spokesperson Taylor Rogers stated that prices will plummet as the military degrades Iran’s ability to disrupt trade. Meanwhile, the political stakes are rising ahead of November’s midterm elections, as expensive fuel becomes a primary concern for voters. Chicago residents interviewed expressed frustration over the ongoing conflict, with some explicitly blaming the current administration for the economic impact of the hostilities.
Worth a look