April 27, 2026: Iran War Maritime Intelligence Daily in International Shipping News 28/04/2026 Operational Overview Maritime activity across the Strait of Hormuz and surrounding corridors remains active but uneven, with transit volumes fluctuating under continued enforcement pressure and operational uncertainty. Following the April 25 rebound, transit activity slowed again on April 26, despite maintaining full AIS visibility across all crossings. At the same time, Gulf-wide vessel presence continued to increase, pointing to a gradual rebuild in overall system activity. East of Hormuz, the Chabahar tanker cluster remains stable, with dark VLCC and Suezmax vessels continuing to loiter under supported conditions, reinforcing the role of eastern positioning as part of ongoing adaptation to enforcement constraints. Across the system, vessel behavior reflects a controlled but inconsistent operating environment, where movement is possible, but still shaped by enforcement dynamics, routing decisions, and strategic waiting patterns. Hormuz Transit Slows After Rebound Transit activity through the Strait of Hormuz declined on April 26 following the previous day’s rebound. A total of 8 vessels crossed the Strait, evenly split between 4 inbound and 4 outbound transits. All crossings were conducted with AIS active, maintaining zero dark transits for a second consecutive day. Inbound traffic included one Panama-flagged products tanker and three cargo vessels, with one flagged to Comoros and two to India. Routing split between corridors, with the tanker transiting via the Northern Corridor and smaller cargo vessels moving through the Southern Corridor. Outbound traffic was fully routed through the Northern Corridor and included two bulk carriers flagged to Barbados and St. Kitts and Nevis, along with two cargo vessels flagged to Panama and Comoros. Compared to April 25, this represents a clear reduction in transit volume, indicating that while movement has resumed, it remains sensitive to shifting operational conditions rather than stabilizing into a consistent flow. Gulf Activity Continues to Build Overall vessel presence across the Gulf increased further on April 26, reaching 920 vessels, an increase of 28 compared to the previous day. Panama remained the leading flag state with 146 vessels, followed by Iran (100), Comoros (89), Marshall Islands (76), Liberia (71), and the UAE (71). Fleet composition included 156 bulk carriers, 146 product tankers, 83 crude tankers, 62 container ships, 43 LNG and LPG carriers, and 38 chemical tankers. At the same time, dark activity declined slightly to 117 events, marking a modest 5% reduction despite the increase in overall vessel count. This divergence between rising traffic and easing dark behavior suggests a short-term shift toward more visible operations, even as underlying deceptive practices remain embedded across the system. Chabahar Cluster Holds Under Supported Loitering The tanker cluster east of Hormuz near Chabahar remains stable, reinforcing the persistence of eastern positioning under enforcement pressure. Windward Multi-Source Intelligence confirms the continued presence of seven tankers in the anchorage area, consisting of six VLCCs and one Suezmax, all operating without AIS transmission. The vessels remain in fixed positions, with no indication of loading or ship-to-ship transfer activity, supporting the assessment of sustained loitering rather than active operations. A key supporting element is th