- U.S. gasoline prices fell below $4 a gallon for the first time since April.
- Optimism grows over the U.S.-Iran deal reopening the Strait of Hormuz.
- Experts warn relief may be short-lived due to supply crunch and tensions.
NEW YORK CITY — U.S. average retail gasoline prices dipped below $4 a gallon for the first time since mid-April, as optimism grew that a preliminary deal between the U.S. and Iran would lead to the reopening of the Strait of Hormuz, a critical passageway for global oil supplies.
Prices for crude oil fell more than $4 a barrel on Monday after President Donald Trump announced that the U.S. and Iran had signed a memorandum of understanding to end a near four-month war, though it remains to be seen whether the agreement will hold.
The decline in fuel prices could offer some relief to the Trump administration, which had promised to lower energy prices for consumers. Trump and Republican lawmakers, who are campaigning to defend narrow majorities in both houses of the U.S. Congress in November's midterm elections, have faced backlash over the rising cost of fuel.
Breaching the $4 a gallon threshold is largely viewed as a psychological barrier at which point some consumers begin changing their behavior, such as cutting back on fuel consumption.
Trump said the text of the deal would be released after a formal signing ceremony on Friday when he also said the Strait of Hormuz would be fully reopened. However, experts say it could still take weeks for the shipping traffic to return to normal as removing mines from the waterway is a complex process.
"The real test now shifts to the Strait of Hormuz, where any reopening and resumption of normal oil flows would be the clearest signal that this relief is durable," said Patrick De Haan, head of petroleum analysis at GasBuddy. "For now, the national average could continue falling, provided there isn't a drastic reversal and the U.S. and Iran continue moving in a positive direction."
U.S. national average retail gasoline prices dipped to $3.997 a gallon on Sunday, falling below the $4 mark for the first time since mid-April, according to GasBuddy data, though prices are still up 90.8 cents from the same time last year.
National average prices were at $4.065 on Monday, according to motorist group American Automobile Association.
As of Monday, Americans have collectively spent about $46 billion more on gasoline since the start of the war, De Haan said.
Gasoline prices rose above $4 in late March after Iran blocked most shipping through the Strait of Hormuz that handles nearly a fifth of global oil flows.
In May, consumer inflation rose above 4% for the first time in three years. Easing gasoline prices led to a moderation in consumers' inflation expectations this month, according to the Labor Department.
However, whether the relief will last is still unclear.
"This is a fragile structure," said SEB chief commodities analyst, Bjarne Schieldrop. "It can easily break down. There may be details which cannot be overcome," Schieldrop said in reference to the U.S.-Iran memorandum.
The U.S. gasoline market is facing a looming supply crunch, with resilient domestic demand and robust fuel exports threatening to strain the already thin inventories and send gasoline prices climbing. In the first week of June, gasoline stocks sank to their lowest seasonal level in a decade, just 215.1 million barrels, according to government data.
If no substantial progress is made on clearing the strait, reinstating insurance on vessels and curbing violence by Iranian proxies, the reprieve may be short-lived, said Tom Kloza, chief energy advisor of Gulf Oil.
