Strait of Hormuz Shipping Faces Severe Disruptions
Shipping traffic through the Strait of Hormuz has nearly come to a standstill, with only one major oil tanker successfully navigating the critical waterway in the past month. The VLCC *Idemitsu Maru*, carrying approximately 2 million barrels of Saudi crude oil destined for Japan, made its passage on Tuesday. This marked a significant event, as it was the only non-Iranian supertanker to leave the Gulf in the last ten days and the first Japan-linked vessel to do so since traffic began to decline sharply in late February.
The Strait of Hormuz is a vital maritime corridor, responsible for about 20% of global oil shipments and a substantial volume of liquefied natural gas (LNG). However, Iranian restrictions and a comprehensive U.S. naval blockade targeting Iranian shipping have drastically reduced vessel movements, leaving the waterway largely closed to international traffic. As a result, Iranian oil exports have suffered significantly, forcing Tehran to rely on older tankers for crude storage due to the inability to ship out oil freely.
Limited Vessel Activity and Ongoing Tensions
Since the passage of the *Idemitsu Maru*, shipping activity in the region has been minimal. In addition to the VLCC, only a few vessels, including bulk carriers, a chemical tanker, an LPG carrier, and one container ship, have exited the Gulf. A small number of inbound bulk carriers have also been recorded, bringing food supplies to Iran. Meanwhile, several Iranian-linked ships that departed the region recently have not advanced beyond the Gulf of Oman, raising questions about their intentions—whether they are waiting for safer conditions or making brief stops in nearby ports.
The situation remains tense, with diplomatic efforts to resolve the standoff showing little promise of success. The U.S. is reportedly preparing for a prolonged period of heightened tensions, while Iran has stated it will not consider reopening the Strait or engaging in negotiations until U.S. maritime restrictions are lifted. This deadlock has left the Strait of Hormuz effectively closed to most international shipping, creating uncertainty for global energy markets and supply chains.
Strait of Hormuz Faces Severe Disruption Amid Ongoing Conflict
Challenges in Monitoring Shipping Activity
The limited shipping activity that is occurring is being funneled through a narrow northern corridor under Iranian oversight. However, tracking the actual level of maritime activity has become increasingly challenging. Many vessels, particularly those associated with Iran, are disabling their Automatic Identification System (AIS) signals to evade detection. This practice, known as “dark shipping,” suggests that the true number of transits may be higher than what is currently observed. Ships often reappear only after they have moved far from the high-risk area, typically near the Strait of Malacca.
