Crude tanker traffic through the Strait of Hormuz has fallen to a fraction of its former volume, with only 10 vessels making the passage over the course of a single week — carrying an estimated 17 million barrels of oil valued at approximately $2 billion, according to data published by Ship & Bunker, citing Clarksons Research.
A Dramatic Decline from Pre-Conflict Norms
The figures represent a sharp deterioration from what was once one of the world’s busiest energy corridors. Steve Gordon, Global Head of Clarksons Research, noted in a Monday email update — as reported by Ship & Bunker — that a typical week in 2025 would have seen approximately 135 vessels pass through the Strait, transporting around 105 million barrels of oil.
The most recent week’s figure of 10 tankers is also a step down from the 13 recorded the week prior, highlighting a continued downward trajectory rather than a stabilisation.
Some Signs of Modest Activity, But Crude Flows Remain Suppressed
According to Ship & Bunker, overall transit activity has shown a marginal uptick, averaging around 11 vessels per day over the most recent five-day period. However, this broader figure still sits approximately 90% below pre-conflict levels.
The breakdown by vessel type tells a nuanced story:
- LPG carriers and bulkers have led a slight recovery in movement
- Crude tankers remain severely impacted, with flows still sharply curtailed
- Outbound traffic continues to dominate, accounting for roughly three-quarters of all transits
Alternative Routes and Freight Market Pressures
With Hormuz passage constrained, operators and producers have turned to longer alternatives. Ship & Bunker reports that Saudi crude exports routed through Yanbu have risen significantly, while westbound diversions via the Cape of Good Hope have also increased.
Despite reduced cargo throughput, freight markets have remained elevated. Clarksons Research attributes this to the extended voyage distances and the broader operational inefficiencies that accompany rerouting, as reported by Ship & Bunker.
Ceasefire Announcement Adds Uncertainty
A potential shift may be on the horizon. Ship & Bunker reports that US President Donald Trump announced a two-week ceasefire on Tuesday, which could open the door to renewed transits through the Strait of Hormuz. However, the report notes that resumption of passage is conditional on Iran reopening the Strait — a significant caveat that leaves the outlook uncertain.
Gulf Bunkering does not provide operational or security guidance. This article is for informational purposes only. Operators should consult flag state authorities, P&I clubs, and relevant advisories for decisions relating to transit planning.
Sources: Ship & Bunker (Clarksons Research)
