US national retail gasoline prices have dropped below $4 a gallon for the first time since mid-April, largely in response to a preliminary memorandum between the United States and Iran. This agreement has fueled optimism about the reopening of the Strait of Hormuz, a critical chokepoint for oil transport, leading to a more than $4 a barrel drop in crude futures. As of early June, US gasoline inventories stood at 215.1 million barrels, and though prices are down, they remain about $0.908 higher than in June 2022, meaning a 15-gallon tank fill-up costs approximately $13.60 more than a year ago.
However, analysts caution that this price relief could be fragile. The process of safely reopening the Strait of Hormuz is expected to take weeks due to the complex operations involved in mine clearance and restoring secure navigation. Furthermore, underlying supply constraints persist, with low seasonal gasoline inventories combined with steady domestic demand and strong fuel exports threatening a supply squeeze. Patrick De Haan, head of petroleum analysis at GasBuddy, noted that the real test lies in the reopening and resumption of normal oil flows through the Strait of Hormuz for this relief to be durable.
The memorandum is slated for a formal signing ceremony on Friday, where President Trump indicated the Strait would be fully reopened. Despite this, experts reiterate the time-consuming nature of clearing the waterway. The long-term persistence of lower prices hinges on the successful and timely reopening of the Strait, the full implementation of the memorandum, and the delicate balance between continued domestic demand and export volumes that are currently depleting US inventories. Any significant reversal in these factors could quickly push gasoline prices back up.