Iran-linked vessels pass through Hormuz ahead of US blockade

SINGAPORE (Reuters) – The number of vessels transiting through the Strait of Hormuz ticked up on Tuesday, with most of them linked to Iranian trade, before a US blockade took effect on Wednesday, shipping data showed.

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US President Donald Trump on ‌Tuesday reimposed a naval blockade of all Iranian ports and threatened to hit power plants and bridges next week unless Tehran resumes negotiations, in the latest escalation of the US conflict with Iran.

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Nine of the 11 vessels that passed through the strait on Tuesday sailed via the Iranian route, ship-tracking data on Kpler showed.

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Of these, three empty oil tankers — one ⁠Aframax-sized vessel and two Very Large Crude Carriers — entered the strait, the data showed.

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Vessels that exited the strait with Iranian exports included one VLCC carrying 2 million barrels of crude, a medium-range tanker with refined products, and two tankers carrying liquefied petroleum gas, according to the data.

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A laden methanol tanker and a dry bulk carrier with iron ore aboard also made their way out of the Gulf on Tuesday, the data showed.

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There were no visible entries or exits for tankers to load oil and gas from other Gulf producers on Tuesday.

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Strikes between the US ‌and Iran ⁠in the Middle East intensified this week, leading to a sharp slowdown in shipping through the Strait of Hormuz, where about a fifth of global oil and liquefied natural gas shipments passed through each day before the war began in February.

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The United States said late on Tuesday that Iran had attacked ⁠seven commercial ships over the last week, leading to nearly a dozen crew members being killed, missing or injured.

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Attacks on Emirati supertankers have caused Middle East spot crude prices to strengthen this week, with prompt month prices ⁠now higher than those in future months, indicating tight supplies.

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“The next phase of Gulf flow recovery could be slower than the initial phase even after geopolitical de-escalation,” Goldman Sachs said in ⁠a note on Wednesday.

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The analysts pointed to a sharp drop in flows through Omani and international routes following the recent tanker attacks, saying it showed that “shippers using the non-Iranian Hormuz lane remain risk-averse.”