More than 400 ships are waiting near the Strait of Hormuz as U.S.-Iran diplomacy raises hopes for a wider reopening of one of the world’s most important energy corridors. The backlog is now becoming the clearest real-world test of whether the Switzerland talks can move from statements to actual maritime traffic.
The Financial Times reported that more than 400 large ships were positioned outside the Gulf while operators waited for the strait to fully reopen. The paper said satellite monitoring showed 441 tanker-sized vessels near the eastern side of the waterway, underscoring how much commercial shipping is still paused despite the diplomatic progress.
The congestion matters because the Strait of Hormuz is the narrow passage connecting the Gulf of Oman with the Persian Gulf. In ordinary times, it is a core route for oil and liquefied natural gas exports from Gulf producers. When ships stay outside the channel, the effect is felt beyond the region: insurance pricing, fuel markets, charter rates, port scheduling, and military risk calculations all tighten at once.
Reuters, in a report carried by The Straits Times, said U.S. and Iranian officials made “encouraging progress” in Switzerland but that friction remained over Lebanon and Hormuz. The report said negotiators agreed to a roadmap for ending fighting in Lebanon and opened a communications line meant to support safe commercial passage through the strait.
But the shipping data still shows caution. The same Reuters report cited analytics firm Kpler as saying only five vessels passed through the strait on June 21, down sharply from 26 ships the day before. That count may miss vessels that turn off transponders inside the Gulf, but it still points to a market that has not yet treated the waterway as fully safe.
Al Jazeera, citing its staff and Reuters, reported that the U.S. Treasury issued a 60-day sanctions waiver tied to the interim framework, allowing Iranian oil exports while technical talks continue. U.S. officials have framed that move as part of a broader package that includes free transit in Hormuz and renewed nuclear monitoring, though Iranian officials have publicly disputed some U.S. claims about new nuclear commitments.
The practical question now is whether shipowners, insurers, and crews believe the political framework is durable enough to justify movement through the channel. A paper reopening is one thing. A normal week of tanker traffic is another. With hundreds of vessels still waiting, the next visible sign of progress will not come from a podium in Switzerland. It will come from AIS screens, satellite radar, and the number of ships willing to enter the strait.
Featured image: Map of the Strait of Hormuz by Goran tek-en via Wikimedia Commons, licensed under CC BY-SA 4.0.