A large crude oil tanker has reportedly crossed out of the Strait of Hormuz using a route designated by Iran, a development that turns the shipping crisis from a simple question of whether tankers can move into a harder one: under whose rules?
The latest report centers on the Agios Fanourios I, a Greek-owned very large crude carrier that had been carrying Iraqi crude and was bound for Vietnam. English-language outlets including The Star, eKathimerini, and The Times of Israel reported Monday that Iran’s semi-official Tasnim news agency said the tanker left the strait through an Iran-designated route.
That claim has not been independently confirmed by Western governments. But it matters because it follows Reuters reporting that the Agios Fanourios I and other crude carriers exited Hormuz with their tracking systems switched off, underscoring how shippers are trying to keep oil moving while reducing exposure to Iranian targeting, surveillance, or detention.
Why This Is a New Angle in the Iran Crisis
The new angle is not just that tankers are still slipping through Hormuz. List25 covered that earlier Monday after Reuters reported that three crude carriers had exited the strait with trackers switched off. The sharper development now is Iran’s public framing: Tehran is presenting at least one tanker movement as having used a route it approved.
If accurate, that points to a more complicated operating environment for shipowners, insurers, and governments. A tanker may be able to pass, but the conditions of that passage could increasingly be shaped by Iranian routing demands rather than standard freedom-of-navigation assumptions.
That distinction is important. Automatic Identification System transponders are designed to make commercial vessels visible for safety and collision avoidance. When tankers go dark in a narrow, militarized chokepoint, it may lower the risk of being tracked by hostile forces, but it also raises the risk of accidents, misidentification, insurance disputes, and naval confusion.
The Tanker Report Fits a Wider Hormuz Pattern
Reuters reported that three crude oil tankers had exited the Strait of Hormuz with trackers switched off. The vessels included the Agios Fanourios I and Kiara M, each reportedly carrying about 2 million barrels of Iraqi crude, and the Basrah Energy, which had loaded Upper Zakum crude from Abu Dhabi National Oil Co’s Zirku terminal.
The reported destination of the Agios Fanourios I was Vietnam’s Nghi Son refinery. That makes the transit especially sensitive because it shows Gulf crude is still moving toward Asian customers even as the war and the Hormuz standoff keep energy markets on edge.
Oil markets have already reacted sharply to the deadlock. Reuters also reported that oil prices rose after President Donald Trump rejected Iran’s response to a U.S. peace proposal. Al Jazeera reported that Trump called Tehran’s reply “unacceptable,” while Iranian officials accused Washington of making unreasonable demands.
Iran Is Trying to Turn Hormuz Into Leverage
Iran’s message has been consistent: it says it can regulate security in the strait and does not accept Western naval moves as neutral shipping protection. That position has collided with British and French planning for a possible maritime-security mission, as well as U.S. efforts to keep energy flows moving.
For now, the practical result is a murky gray zone. Tankers are not fully stopped, but their movements are becoming harder to track. Western governments have not accepted Iranian control over Hormuz, but shippers appear to be adapting to the reality that Tehran can impose risk on individual vessels.
The Agios Fanourios I report is therefore less about one tanker and more about the next phase of the crisis. Iran is trying to show that traffic can continue — but only on terms it can influence. That is exactly the kind of leverage that keeps Hormuz dangerous even when the strait is not formally closed.
Sources: Reuters, Al Jazeera, The Star, eKathimerini, The Times of Israel.