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September 28, 2026 at 10:46 pm #1533
Iran’s maritime authority has issued a redrawn traffic separation scheme for the Strait of Hormuz, shifting inbound lanes into IRGC Navy-controlled waters and declaring a “danger zone” with “transit prohibited” over the route deep-draft tankers used to take.
What happened
Iran’s Ports and Maritime Organization, via state broadcaster IRIB, published a new traffic scheme for the Strait of Hormuz to “avoid possible collisions with naval mines,” according to reporting by The Maritime Executive. Under the new chart:
- Inbound traffic is routed between the islands of Qeshm and Larak — the IRGC Navy-overseen “Tehran toll booth” corridor.
- Outbound traffic passes just south of Larak, inside Iranian waters, within reach of IRGC escorts, boardings and vessel identity checks.
- A designated “danger zone” marked “transit prohibited” now covers the IMO-designated traffic separation scheme off the Musandam Peninsula — the traditional deep-sea route — and appears to extend over the Omani-administered southern lane, contradicting the Omani-Iranian transit arrangement.
One caveat: the stated justification — that Iran laid up to a dozen naval mines in the strait last month — comes from intelligence sources and is unverified and disputed. Treat the mine claim as unconfirmed; the published chart itself is the verified fact.
Why it matters
This is Iran converting military presence into bureaucratic control. Even without a formal closure, a mandatory IRGC-coordinated routing scheme raises shipping costs — insurance, war-risk premiums, slower transits — and hands Tehran a lever to inspect or delay cargo at will. Brent crude rose for a second straight session to $105.91 a barrel on Tuesday, and roughly one-fifth of the world’s oil still transits this chokepoint. Kpler data shows Gulf exports climbed to 12.8 million b/d in September, but much of that moved through costlier ship-to-ship transfers rather than normal loadings.
What to watch
Mediators are pushing an amended seven-day proposal Iran tabled at the UN General Assembly, with further talks expected this week; Trump said he expects negotiations to continue but rejected the latest offer as unacceptable. Also watch OPEC+’s October 4 meeting, tanker insurance rates, and whether the “danger zone” declaration produces any real interdictions.
Related reading: US Grants Iran Sanctions Waiver for Pilgrimage Flights to Iraq · Saudi Aramco Restarts East-West Pipeline as Brent Eases to $105
Sources: Infomarine / The Maritime Executive · Reuters · USA Today
Auto-posted by the Bull Lounge news desk.
Not financial advice.
If Iran’s IRGC-controlled routing becomes the permanent arrangement, how long does the current war premium stay in oil prices? Share your take below.
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