Strait of Hormuz Operating Environment Remains Heavily Constrained
According to Windward’s latest update, issued 13 May, the Strait of Hormuz is increasingly operating as a tightly controlled maritime zone marked by constrained Iranian export activity.
The Strait of Hormuz operating environment remained heavily constrained between May 11 and May 13 as Iranian export infrastructure continued operating below normal capacity, dark tanker staging expanded across protected Iranian waters, and IRGC-linked maritime activity intensified throughout the corridor. Kharg Island showed its clearest signs yet of sustained export disruption, with all loading terminals observed empty despite roughly 20 dark tankers remaining staged nearby.
Export Disruption and Staging Operations
Kharg Island crude export throughput remains severely degraded, with no active tanker loading operations observed for multiple consecutive days despite large tanker queues remaining staged nearby. The continued absence of departures reinforces assessments that Iran is struggling to restore normal export throughput while attempting to preserve crude export continuity under blockade conditions.
At the same time, dark tanker concentrations across northern Hormuz, eastern Hormuz, and Chabahar indicate that Iran is increasingly relying on protected holding zones to buffer export capacity and manage outbound flows. Persistent ship-to-ship transfer activity, bunkering operations, and prolonged dark anchorage behavior reinforce indications that covert cargo-transfer and sanctions evasion operations are expanding inside Iranian territorial waters.
Commercial Shipping Activity Remains Heavily Constrained
Commercial shipping activity through Hormuz also remains heavily constrained. Widespread EMCON behavior, persistent ship-to-ship transfer activity, and prolonged dark anchorage behavior indicate growing covert staging operations inside Iranian territorial waters. Limited outbound flows persisted under both AIS-transmitting and dark conditions, while RF collections repeatedly showed little to no detectable emissions activity in key commercial corridors.
Outlook
Windward assesses that portions of Hormuz are increasingly functioning as controlled maritime holding zones rather than normal commercial transit corridors. The Strait’s operating environment is expected to remain heavily constrained, with sustained export disruption and covert staging operations likely to continue.
Original Article: Windward: Controlled maritime operating zones increasingly appear in Hormuz — Safety4Sea