Ship Crossings Go Dark In Strait Of Hormuz Amid US-Iran Tensions

A significant increase in secretive ship crossings has been observed in the Strait of Hormuz, amid escalating military tensions between the United States and Iran. On Sunday, all six commodity carriers that transited the strait did so with their Automatic Identification System (AIS) transponders turned off, a practice known as “dark crossings.” This trend has been on the rise over the past few days, with clandestine movements outnumbering visible ship passages.

The use of dark crossings allows vessels to bypass standard tracking systems, making it difficult to monitor their movements. According to preliminary data from Kpler, no ships were observed crossing the strait via standard AIS signals on Monday morning. However, vessels appeared on either side of Hormuz—the Persian Gulf or Gulf of Oman—after last broadcasting their positions on the opposite side, indicating that they had likely transited the strait without transmitting location data.

The shift to secretive operations reflects shipowners’ growing preference to go dark amid escalating US-Iran hostilities and conflicting claims over control of the strait. The practice of secretive Hormuz crossings dates back to mid-April, when the United Arab Emirates began transporting oil on darkened tankers. This approach mitigated some of the early oil supply disruptions during the initial phase of the Gulf conflict.

The situation in the Strait of Hormuz has become increasingly complex, with Iranian attacks on vessels using the Omani corridor and conflicting statements from the United States and Iran on the strait’s accessibility. Tehran has declared that transits would require approval from an Iranian authority, while US Central Command maintains that certain navigable pathways remain open for free passage.

The US-supported southern corridor, running along Oman’s coast, has effectively halted, with the last reported passage on Wednesday. In contrast, the Iran-designated northern route has continued to see a limited number of crossings. Ship operators attempting the northern route risk costs imposed by Iran and potential penalties from the United States.

The heightened tensions in the region have also led to an increase in oil prices, with prices spiking over 4% to $79 per barrel. The situation underscores the heightened risks to global energy transport and emphasizes the need for careful monitoring of maritime activity in the Persian Gulf region.

The Islamic Revolutionary Guard Corps has also claimed to intercept two vessels it deemed to be operating along an “illegal route,” highlighting ongoing uncertainty and the dangers of navigating one of the world’s most strategic maritime chokepoints. The attacks on vessels in the northeastern area of Oman’s Musandam peninsula have discouraged traffic along the US-supported southern route.

The Strait of Hormuz is a critical waterway, with a significant portion of the world’s oil passing through it. The increased use of dark crossings and the conflicting claims over control of the strait have raised concerns about the safety and security of maritime traffic in the region.

In conclusion, the situation in the Strait of Hormuz remains volatile, with secretive ship crossings on the rise and conflicting claims over control of the strait. The increased use of dark crossings and the attacks on vessels have raised concerns about the safety and security of maritime traffic in the region, and the need for careful monitoring of maritime activity in the Persian Gulf region cannot be overstated.