VIGIL CONSILIUM
Context. Not headlines.
Coverage · Iran–Gulf

Strategic system · partial record

Maritime access

The straits and approaches a Gulf cargo must pass — Hormuz, the Gulf of Oman, Bab el-Mandeb — and the Red Sea ports beside them, read as access: whether a loaded ship can sail.

7 published markers 4 supply systems

Assessed as of
2026-09-22
Last reviewed
2026-10-03

AssessmentHigh confidence

Context, not targeting. A system record names published markers and published operators and states dependencies at the level a published institution does. It carries no facility-level capacity, vulnerability, protection or repair detail; the schema has no field for any of it.

12Open the module map
Locator — land outline from Natural Earth 110m (public domain); 7 places this record names, at the coordinates the module already publishes. No routes, boundaries, control or activity are drawn.

What this system is

Hormuz is the only outlet of the enclosed sea every core state but Oman loads into, and Bab el-Mandeb is the gate of the Red Sea route the bypass pipelines reach. The module reads both through what stopped traffic in practice — war-risk cover and attribution — not through naval posture.

The access layer under the energy system: the energy system decides what can be loaded, this system decides whether it can sail, and the two are kept apart because cover and attribution move on a different clock from capacity.

Confidence: High As of 2026-09-22Reviewed 2026-10-03

The system

Overview
Two straits bound the system. Hormuz is the only outlet of the Gulf, and the commercial-closure chain records that the mechanism which stopped traffic in 2026 was marine war-risk cover rather than any physical block. Bab el-Mandeb is the gate of the Red Sea route that the Saudi East–West system and the Yanbu terminal reach, and the Red Sea rerouting chain records what shipping does when it is contested: the Yemeni ports of Hodeidah and Mokha and Perim island are the markers the module publishes for that approach. Bandar Abbas is Iran's principal commercial port on the northern shore.
Current state · as of 2026-09-22
As the crude-export record last assessed it (22 September 2026), commercial access through Hormuz turns on war-risk cover and the Makkah mechanism the module's Watch questions follow; the Red Sea approach is read through the rerouting and stranded-seafarer chains. No naval posture is stated here.
Commodities and outputs
Marine war-risk insurance

Nodes

The published markers that carry this system value, by the module’s own priority. A note is the system record’s; a marker without one is a member by its own tag.

Routes and operators

Supply systems running through it

  • Hormuz-dependent crude and products export systemMineral export · 8 nodes · 3 documented disruptions · named by the recordThe system through which six of the seven core Gulf states send their oil to market, converging on one strait.
  • Iranian crude export systemMineral export · 4 nodes · 2 documented disruptions · joined by its nodesA single terminal inside the strait, and a bypass that was built and has barely been used.
  • Qatari LNG export systemGas & LNG · 3 nodes · 3 documented disruptions · joined by its nodesThe cleanest dependency in the module: close to a fifth of world LNG, one complex, one strait, and no alternative of any size.
  • Saudi east–west crude transitMineral export · 4 nodes · 6 documented disruptions · joined by its nodesThe largest Hormuz alternative in existence, limited by its terminal rather than by its pipeline, and opening onto a second contested strait.

Dependencies and constraints

Each marked documented (a published source states it) or assessed (Vigil infers it and says so). The two are never drawn the same way.

Depends onDocumented Confidence: High

Marine war-risk cover. Cover, not capacity, decided whether loaded tankers sailed in 2026; the commercial-closure chain documents the mechanism.

Sources: Public market and insurance data · Reuters↗

Transmission chains through this system

Each step carries its own basis grade — Confirmed, Plausible exposure, Unconfirmed scenario — and a chain can only weaken from left to right.

Watch questions bearing on it

Events at its nodes

Sep 2026; established in reporting 17 – 18 SepSaudi crude goes back through the strait the pipeline was built to avoid13 – 16 Sep 2026The Hormuz navigation table is set, and does not sit10 – 11 Sep 2026The Houthi movement takes the southern Red Sea coast and reaches Bab el-Mandeb1 – 2 Sep 2026United States and Iranian exchange of strikes30 Jul 2026A Saudi-led multinational maritime defence alliance is declared in RiyadhJul 2026The Houthi movement blockades shipping to and from Saudi portsMay 2026Iran establishes a Persian Gulf Strait Authority24 Apr 2026The IMO states there is no safe transit anywhere in the Strait of Hormuz5 Mar 2026Marine war-risk cover for the Gulf is terminated and repriced28 Feb 2026Iran declares the Strait of Hormuz closed to normal commercial traffic1 Jun 1984Security Council Resolution 552 on freedom of navigationSep 1980 – Aug 1988The Iran–Iraq war and the Tanker War

Economic exposures it underlies

ExposureHormuz transit & bypass capacityExposureMarine war-risk insurance

Analytical Notes

NoteThe strait that closed without being blocked

Actors and arrangements

ProfileIran and the GulfProfileSaudi Arabia

Open in Explore Interactive: select this record and follow what connects to it.

Sensitivity: public-contextual Confidence: High Sources: Congressional Research Service — Iran, the Gulf and the Strait of Hormuz · Public market and insurance data · Reuters↗ · Established international media reporting Methodology Corrections

Assessed as of — 2026-09-22 Last reviewed — 2026-10-03