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Coverage · Iran–Gulf

Key event

Iran establishes a Persian Gulf Strait Authority

May 2026 hormuz-strait

What happened

Iran establishes a body it calls the Persian Gulf Strait Authority, asserting exclusive control over the waterway. The Gulf Arab states reject the claim, and so does Oman — which has jointly operated the strait's transit corridor with Iran since 1968.

A change to the LEGAL contest over the strait that altered neither physical passage nor commercial access, which is exactly why the module keeps the three separate. Iran has also stated it is not party to the 1982 Law of the Sea Convention, so the dispute is not a simple division between Iran and the West: its own corridor partner rejects the claim.

Confidence: Moderate

WhenMay 2026
Wherehormuz-strait
KindPolitical · Maritime · Diplomatic
Confidence: Moderate Sources: Congressional Research Service — Iran, the Gulf and the Strait of Hormuz · UN Security Council and Panel of Experts reporting↗ Methodology Corrections

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Watch questions this event bears on

Standing analytical questions whose evidence runs through this event, each with its latest review. Derived from the Watch object, never restated here.

  • LogisticsIs the Strait of Hormuz commercially usable again?Movement
    1. 2026-09-04: Baseline
    2. 2026-09-13: Movement observed
    3. 2026-09-20: Assessment changed
    4. 2026-09-27: Assessment changed
    5. 2026-10-04: Assessment changed
    6. 2026-10-11: Assessment changed
    7. 2026-10-18: Movement observed

Connected records

2 records that this event names, or that name it — every one an explicit reference in a published record, nothing inferred from subject matter.

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Analytical Notes1

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Where this fits

This is one entry in the Iran–Gulf timeline. The full Key Events surface carries every dated turning point with its filters and its essential subset, and this event in place shows what came before and after it. How Vigil grades, dates and sources its claims is set out in the methodology.