What is the significance of the Idemitsu Maru's attempted transit through the Strait of Hormuz amid the US-Iran war?

The Idemitsu Maru's attempt represents 'the first attempt by an oil carrier from [Japan] to leave the Persian Gulf since the Iran war began' and is 'noteworthy as it’s one of the largest tankers to do so since the US began a rival blockade of Iran two weeks ago', especially given that 'traffic through the strait has remained near zero' during that time and that Japanese shipowners 'tend to be conservative' and have otherwise avoided such transits amid hostilities.

What cargo is the Idemitsu Maru carrying, where was it loaded, and what is its current operational status?

The Idemitsu Maru is 'carrying 2 million barrels of crude loaded from Saudi Arabia’s Juaymah terminal in early March', is a '2007-built Panama-flagged very large crude carrier', and is 'currently signaling “for orders,” a common designation that indicates it may not yet have a buyer or destination'; it is operated by the tanker arm of Japanese energy conglomerate Idemitsu Kosan Co., though the company declined to comment on the vessel's status for safety reasons.

Japanese Crude Supertanker Attempts Hormuz Exit in War’s First

Apr 28, 2026

An Idemitsu Kosan supertanker carrying 2 million barrels of Saudi crude has begun transiting the Strait of Hormuz, marking a significant shift for Japanese refiners amid near-zero regional traffic following the outbreak of US-Iran hostilities.

bloomberg

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Oil tanker exits Hormuz, heading to South Korea's Hyundai Oilbank, data shows

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Japanese Crude Supertanker Attempts Hormuz Exit in War’s First

Japanese Crude Supertanker Attempts Hormuz Exit in War’s First

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