"At its narrowest point, the Strait is 21 miles wide, but the width of the shipping lane in either direction is only two miles, separated by a two-mile buffer zone. The Strait is deep and wide enough to handle the world's largest crude oil tankers, with about two-thirds of oil shipments carried by tankers in excess of 150,000 deadweight tons.to do with where is it navigable."
https://www.eia.gov/todayinenergy/detail.php?id=4430

Naval Warfare:
https://opiniojuris.org/2026/05/06/the-closure-of-the-strait-of-hormuz-by-iran-considerations-over-the-law-of-the-sea-and-law-of-naval-warfare/

Is the narrow section, between the Persian Gulf and the Gulf of Oman. Iran is on one side and Oman is on the other. Iran's territory is the northern side - Oman to the south - the boundary is shown on the map. With the islands lying off the tip of Oman, it may make navigation difficult for large tankers, so they are forced to travel in Iran's waters.

... to clarify this.