Who controls the Strait of Hormuz?
Whose territorial waters it crosses, what the law of the sea provides for, and where the disagreement actually sits.
Whose water is it
The strait is narrow enough that it falls entirely within the territorial seas of the two states either side of it. Iran holds the northern side; Oman, through its Musandam exclave, holds the southern.
The traffic separation scheme — the inbound lane, the outbound lane and the separation zone between them — lies in Omani territorial waters. That is a matter of where the lanes were drawn, not a statement about who commands the strait.
What the law of the sea provides
The UN Convention on the Law of the Sea sets out a regime of transit passage for straits used for international navigation: ships and aircraft of all states may pass continuously and expeditiously, and the coastal state may not suspend that passage.
The complication is that not every relevant state is a party to the convention on the same terms. Iran signed but has not ratified it, and the United States is not a party either, though both have positions on which parts reflect customary international law. Those positions do not fully agree.
Why "control" is the wrong frame
Legal jurisdiction, physical presence and practical influence are three different things, and headlines tend to collapse them into one word.
A state can hold territorial waters without directing traffic through them. A navy can be present without exercising jurisdiction. And in practice the flow of shipping is shaped as much by insurers, charterers and shipowners deciding what risk they will accept as by anything a government announces. The current status page tracks what is actually moving.
Common questions
- Does Iran own the Strait of Hormuz?
- No. The strait spans the territorial waters of both Iran and Oman, and the shipping lanes run through Omani waters. Neither state owns the strait outright.
- Are ships allowed to pass through freely?
- International law provides a right of transit passage through straits used for international navigation, which coastal states may not suspend. Interpretations of the detail differ between the states involved.