The outbreak of the Iran-U.S. conflict has already led to a large-scale blockade and suspension of operations in the Strait of Hormuz.

This has also caused a surge in crude oil prices.
The Strait of Hormuz is one of the most critical energy passages, with over 20% of the world's seaborne oil passing through here.
Especially for Japan, over 90% of its oil supply comes from the Middle East, most of which passes through the Strait of Hormuz. Although Japan's reserves exceed 200 days, if the blockade continues, local oil prices, electricity, and gas costs will be directly affected, and prices will gradually become apparent.
Since the conflict began, international crude oil prices have already risen by over 10%, with Brent crude approaching $82 per barrel at one point.
Iran has warned via official media and naval broadcasts that the waters are unsafe and has advised ships to avoid passage, but has not issued an official, legally binding full blockade declaration.