RismadarVoice Reporters, August 30, 2026
Ship traffic through the Strait of Hormuz has fallen sharply amid escalating tensions in the region, with daily vessel crossings dropping from an average of about 130 ships to fewer than 20 during periods of heightened security concerns.
The decline represents an estimated 85 per cent reduction in maritime movement through one of the world’s most important energy routes, which handles about 20 per cent of global oil and liquefied natural gas shipments.
Iran’s Islamic Revolutionary Guard Corps (IRGC) has intensified monitoring and enforcement activities in the narrow waterway linking the Persian Gulf with the Gulf of Oman, restricting movement of some vessels and increasing pressure on shipping operators.
The IRGC Navy has reportedly taken measures including blacklisting tankers, enforcing transit requirements and stopping vessels attempting to pass through the strategic route.
Iran’s Persian Gulf Strait Authority, operating under IRGC oversight, placed 45 tankers on a blacklist on August 25, citing alleged violations of transit regulations. Ships on the list face possible penalties, including fines and cargo seizures.
Beyond administrative restrictions, the IRGC has also reported physically stopping vessels, including incidents where warning shots were used during attempts to enforce maritime controls.
The current restrictions have affected Iran’s own oil exports, with Iranian authorities reporting a period of zero crude oil exports during an active phase of a United States-led blockade effort in August.
In response, some Iranian-linked operators have reportedly relied on alternative methods, including the use of so-called shadow fleets, switching off vessel tracking systems and changing routes to avoid detection.
The Strait of Hormuz remains a critical global energy passage due to its geographical importance. At its narrowest point, the waterway is about 21 miles wide, with limited shipping channels available for large vessels.
Although countries including Saudi Arabia and the United Arab Emirates have developed pipelines to transport some oil exports outside the strait, the alternative routes handle only a small portion of the volume normally transported through the maritime corridor.
Analysts said the current situation does not amount to a complete closure of the strait, but the sharp decline in traffic and uncertainty surrounding vessel approvals have created major challenges for shipping companies.
The restrictions have also raised concerns in global energy markets, with insurers expected to reassess risks for vessels operating in the Gulf region.
Shipping operators are closely monitoring the number of blacklisted vessels and daily transit figures, with further reductions in crossings or an expansion of the blacklist likely to indicate continued pressure on maritime operations.
The Strait of Hormuz remains a key focus for international observers as tensions continue to affect energy security and global trade routes.
