Security · Operations·27 Aug 2026·Strait of Hormuz · Gulf of Oman

Iran warns shuttle tankers. STS in the Gulf of Oman stays the workaround

The Persian Gulf Strait Authority warned on 23 August that vessels which had broken Iranian arrangements for transit of the Strait of Hormuz would face fine, detention or confiscation on later transits.

Nave Electron, painted name.
Nave Electron, painted name. VesselFinder. File photograph.

The official paper in this pack does not carry a named hull list.

Named press describes the trade that warning is aimed at. Shuttle tankers load inside the Gulf, cross the Strait, and transfer cargo ship-to-ship in the Gulf of Oman off Fujairah or Sohar. Vortexa, cited by Splash247, puts that STS crude at 3.1 million barrels per day since early July — about 30 percent of the region’s 5.6 million bpd of crude exports. Braemar, in the same piece, said 12 VLCCs named by Tehran had carried around 900,000 bpd and about 24 percent of the STS volume. TankerTrackers counted multiple simultaneous STS sets in the Gulf of Oman on 25–26 August.

STS pairs in the Gulf of Oman.
STS pairs in the Gulf of Oman. TankerTrackers. 25 Aug 2026.

Cyprus Mail reported the operating pattern on named hulls. Kiku (IMO 9329796) loaded at Mesaieed, dropped AIS near Dubai, and reappeared off Fujairah alongside Nave Electron (IMO 9890989). Nave Electron then sailed toward Ningbo. Nissos Kythnos (IMO 9853852) was reported alongside Front Otra after a similar dark crossing. VesselFinder lists IMO 9732541 under the current name Ghana Prosperity, with Front Otra as history. The desk does not treat those two names as one live hull this week.

Nissos Kythnos, painted name.
Nissos Kythnos, painted name. VesselFinder. File photograph.

Reuters, via The Hindu, reported that at least three Indian refiners and one global energy major planned to stop using listed ships. Press counts of 45 and 46 ships are not reconciled on the PGSA paper.

PGSA Notice S. 14/26, Route A/B chart.
PGSA Notice S. 14/26, Route A/B chart. Official.

The earlier night-corridor note remains the official-product picture of southern-lane traffic.

Established

  • PGSA 23 August: fine, detention or confiscation for vessels that violated Iranian Hormuz arrangements.
  • Splash247 / Vortexa: Gulf of Oman STS crude 3.1 mb/d since early July.
  • TankerTrackers: multiple STS operations counted in the Gulf of Oman late August.

Not established

  • Official published list of named ships.
  • That Front Otra and Ghana Prosperity are the same live identity this week.
  • That any named shuttle hull has already been detained or confiscated under the 23 August notice.

In the library & related

Contact: desk@seavanta.comtips, corrections, I was there.

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