No, the Strait is international waters and always have been.

Wikipedia says it's been Iranian/Omani territorial waters for quite a while:

> In 1959, Iran altered the legal status of the strait by expanding its territorial sea to 12 nmi (22 km) and declaring it would recognize only transit by innocent passage through the newly expanded area. In 1972, Oman also expanded its territorial sea to 12 nmi (22 km) by decree. Thus, by 1972, the Strait of Hormuz was completely "closed" by the combined territorial waters of Iran and Oman.

Wikipedia does not say that the Strait is Iranian/Omani territorial waters. Wikipedia says that Iran and Oman claim that the Strait is Iranian/Omani territorial waters.

Claiming it does not make it so.

The Strait may well have some, but the traffic separation scheme for shipping is absolutely in Omani territorial waters, and another part of traversing the Strait includes passing through Iranian territorial waters.

Ok, so just de facto iranian.

However, I believe Oman also collects fees. So in practice the distinction wrt shipping is moot

Oman doesn't collect fees...

> Ok, so just de facto iranian.

No, the route is entirely outside of Iranian waters. They attacked ships that were in Oman waters and put mines in Oman waters and now shoot at anyone trying to removing those mines in Oman waters. Nobody, not even the Iranian government, claims that is their water.

ok, I guess the strait is just straight iranian