Japan’s Oil Detour Is Expanding as Hormuz Crisis Drags On

Japan is widening the routes and sources it uses to secure crude oil as the effective blockade of the Strait of Hormuz continues, with some cargoes already heading to Japan without using the strait, according to Nippon.com’s May 10 report and The Japan Times. The shift shows how quickly supply planning is changing as Middle East instability stretches into another week.

Key developments

• As of 8 a.m. on Tuesday, 15 tankers from the Middle East and North Africa were heading for Japan, according to University of Tokyo professor Hidenori Watanabe’s analysis cited by Nippon.com. The group included 11 crude oil tankers, three petroleum and chemical product carriers, and one LNG carrier. Some had already arrived.

• The most common departure point among those vessels was Fujairah in the United Arab Emirates, outside the Strait of Hormuz on the Gulf of Oman. That matters because it offers a way to keep cargo moving even as the usual chokepoint remains heavily disrupted.

• Japan is not relying only on rerouted Middle East cargo. The reporting says the government is also trying to diversify procurement away from the region by looking to the United States and Russia. That broader strategy has already been visible in recent arrivals, including U.S. crude reaching Japan in late April and Russian crude arriving in early May.

• The context is Japan’s long-standing dependence on Middle Eastern energy. With the Strait of Hormuz effectively closed to normal traffic, even partial rerouting has become a major operational and economic issue rather than a niche shipping adjustment.

What to watch

The next signal to watch is whether Japan can keep increasing volumes from outside the strait without significantly raising costs or slowing delivery times. If more vessels continue departing from ports such as Fujairah, that would suggest the detour strategy is becoming more than a short-term workaround.

Another key question is how far Japan pushes supplier diversification. The current reporting confirms interest in U.S. and Russian crude, but it does not yet establish how large those flows will become relative to normal Middle East imports. Further government data, refinery disclosures, or shipping-tracking updates will show whether this is a temporary balancing move or the start of a deeper reset in procurement.

Sources

• The Japan Times: Japan diversifying shipping routes for Middle East oil
• Nippon.com News: Japan Diversifying Shipping Routes for Middle East Oil
• The Japan Times: U.S. crude oil arrives in Japan for first time since start of Iran war
• The Japan Times: Tanker carrying Russian crude oil arrives at facility in Japan

Photo by Jason Rost on Unsplash