Iran denied that the American destroyers had entered the strait, as negotiations for an extended cease-fire continued in Islamabad.
An association of airports told European Union officials that fuel shipments through the Strait of Hormuz had to restart within three weeks to avoid a “systemic” shortage.
The war with Iran is preventing huge amounts of oil from flowing out of the Persian Gulf, but the prices that many people track don’t fully capture the scale of the disruption.
The first day of a tentative cease-fire had the region on edge.
There were conflicting reports about the status of the vital shipping waterway in the cease-fire with Iran.
Analysts said oil and natural gas energy companies would not quickly restore production unless attacks stopped and ships started moving through the Strait of Hormuz.
A handful of vessels have crossed the crucial waterway since the U.S.-Iran truce began, but shipowners, insurers and others are wary of safe passage.
A handful of vessels have crossed the crucial waterway since the U.S.-Iran truce began, but shipowners, insurers and others are wary of safe passage.
Both the U.S. and Iran are now talking about imposing fees on ships using the vital passageway. That could fray a treaty that ended centuries of lawlessness on the high seas.