Fresh U.S. and Iranian strikes over the weekend fuelled fears of a renewed escalation. Tehran targeted U.S. facilities across the Gulf on Sunday and said it had again closed the Strait of Hormuz. Iran's Revolutionary Guards said on Monday they had attacked U.S. military bases in Kuwait and Bahrain.
Before the conflict began in late February, the Strait of Hormuz handled about one-fifth of global daily oil and liquefied natural gas supplies.
Vessel traffic through the strait fell to a five-week low on Sunday, ship-tracking data showed. Six vessels transited the strait on Sunday, according to Kpler.
The escalating attacks cast doubt on the future of an interim U.S.-Iranian agreement signed last month that aimed to reopen the strait and end the war after a further 60 days of negotiations.
Global oil supply rose by 4.1 million barrels per day in June following the agreement, but remained 9.4 million bpd below pre-war levels, the International Energy Agency said in its monthly report on Friday.
U.S. President Donald Trump said on Sunday that the Strait of Hormuz remained open to commercial traffic, despite Iran's earlier declaration that it had closed the waterway after a vessel travelled on an unauthorised route and was struck.
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