Iran’s new agency for Strait of Hormuz transits has published a list of 77 vessels it says have been blacklisted, even as those ships continue to use the route.

Sources indicated on 20 September 2026 that the Persian Gulf Strait Authority, opened in mid‑May 2026, has issued three tranches of named vessels as part of a toll and transit regime for the Strait of Hormuz.

The authority released the lists on 24 August, 2 September and 14 September, according to the report. In total 77 vessels were named across the three releases.

Independent maritime analytics firm Windward analysed the full set of 77 names and concluded that every vessel on the lists transited using what it described as the unauthorised southern corridor. That finding is recorded in reports’s coverage of the authority’s measures.

Key dates and totals

  • Persian Gulf Strait Authority inaugurated in mid‑May 2026.
  • Blacklist tranches published on 24 August, 2 September and 14 September 2026.
  • 77 vessels named across the three tranches.

What the lists show

The three releases compile the names of 77 ships alleged to have breached the authority’s new routing or payment requirements. reports’s piece presents the lists together with Windward’s analysis of the transits.

The Windward finding that every vessel on the lists used the southern corridor is set out in the same reporting. The authority’s action and the analytics result appear side by side in the published account.

Reporting and interpretation

reports’s headline framed the situation as a major enforcement push that has yet to deter the listed vessels. The published report gives the authority’s timeline and cites the Windward analysis without offering additional operational detail.

The public record supplied in that reporting shows the authority has moved from announcement to named blacklists within a period of months, and that the named vessels were identified in three discrete publications in late August and September 2026.

The Persian Gulf Strait Authority and Windward are referenced in the original report; no further statements or confirmations from those organisations are included in the supplied material. The Maritime Gazette has reported here only from the facts set out in reports’s item of 20 September 2026.

The development will be watched closely by ship operators and insurers given the strategic importance of the Strait of Hormuz, but the supplied notes do not include reactions from industry, numbers for individual tranches or specific enforcement measures beyond the lists themselves.

The Maritime Gazette will continue to monitor publicly released material for further detail as it becomes available.