Ship owners eye Hormuz truce with 800 vessels still trapped

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DUBAI - Ship owners are rushing to understand the fine print of a US-Iran ceasefire that could temporarily unblock the Strait of Hormuz, and open an exit for more than 800 vessels trapped in the Persian Gulf.

The vital waterway has been virtually closed since US and Israeli air strikes against Iran at the end of February prompted Iran to tighten its control, triggering an unprecedented energy supply crunch.

Then, hours before a deadline set by US President Donald Trump ran out on the US evening on April 7, the two sides agreed a ceasefire in exchange for a reopening.

Key details remain uncertain: Iran says it has agreed to two weeks of safe passage in coordination with its armed forces and within “technical limitations”, while Mr Trump announced a “COMPLETE, IMMEDIATE, and SAFE OPENING”.

Mr Trump said in a separate social media post that the US would be “helping with the traffic build up” and “hangin’ around” to ensure smooth flows.

Shipowners in Asia, the Middle East and Europe greeted the possibility of a reopening with both relief and caution.

There was little immediate change in traffic around the strait on April 8, though several said they were calling insurers and security advisers, and had put vessels on standby. They asked not to be named given the sensitivity of the issue.

“The ceasefire may create transit opportunities, but it does not yet provide full maritime certainty and we need to understand all potential conditions attached,” said a spokesperson for A.P. Moller-Maersk A/S, the world’s second-largest container liner, adding information was still limited.

Tokyo-based Nippon Yusen Kabushiki Kaisha, also one of the world’s largest shipping companies, has said it is closely monitoring the situation.

In the past six weeks, traffic through one of the world’s busiest energy thoroughfares has slowed to a trickle, relative to the 135 or so vessels that transit daily in peacetime.

“You don’t switch global shipping flows back on in 24 hours,” said Professor Jennifer Parker, adjunct professor at the University of Western Australia Defence and Security Institute. “Tanker owners, insurers and crews need to believe the risk has actually reduced – not just paused.”

Ships that transport energy make up a large part of the fleet that is stuck inside the gulf, data from Kpler show. There are currently 426 tankers hauling crude oil and clean fuels, plus 34 liquefied petroleum gas carriers and 19 liquefied natural gas vessels. The remainder are carrying dry commodities, like agricultural or metal products, and or containers.

Ceasefire plans are a necessary step, but only an initial one, said Mr Lewis Hart, head of marine in Asia at insurance broker Willis Towers Watson. “Even within a two‑week window, we expect activity to restart in a measured manner rather than all at once,” he said.

Traders and ship owners will now be closely monitoring which ships start making their way to transit the strait in either direction – especially those that would not normally have Iranian protection – and how they fare. As at the morning of April 8, more than 1,000 vessels are waiting on both sides in clusters around Dubai and Khor Fakkan.

“It’s good to see that the market is reacting the way it is, but this is day one of a tentative ceasefire,” former US intelligence adviser Michael Pregen told Bloomberg Television. “We are likely to see the regime control who moves through, who is charged what, and who is denied.”

The first two ships to attempt an exit since the announcement appear to be sailing as a pair towards Iran’s Larak and Qeshm islands on the morning of April 8, ship-tracking data show. One of them is the Tour 2, a US-sanctioned Suezmax that is flagged to Iran.

Sailing next to the tanker is a Greek-owned bulk carrier, NJ Earth, whose voyage history within the Persian Gulf suggests either spoofing to hide location or interference by electronic warfare. There were no contact details listed on database Equasis for its owner, NJ Earth Marine, and manager, NJ Trust Marine.

Other ships with links to Iran appear to be heading toward Hormuz from within the Persian Gulf. None has been observed crossing in the opposite direction.

Movement of LNG ships will also be particularly closely monitored, as no loaded carrier has made it through the strait since the war began and one recent attempted transit ended in a last-minute U-turn. About 20 per cent of global LNG traffic went through Hormuz in 2025.

According to an International Maritime Organization tally at end March, some 20,000 civilian seafarers are stuck onboard these ships and the other utility and support vessels.

Those crew members have been facing dwindling supplies, fatigue and psychological stress, the United Nations agency warned. BLOOMBERG