The Strait of Hormuz has left oil markets baffled, with Iran and the United States issuing conflicting statements about whether the world’s most important oil chokepoint is open or closed. After Tehran signaled a renewed closure of the waterway over the weekend — overshadowing the start of delayed U.S.-Iran talks in Switzerland — the picture has become a confusing half-open, half-closed state that defies a clean read.
The data captured the wobble. Maritime-intelligence firm Windward said transits through the strait dropped to 12 vessels on Sunday, down from more than 21 on Saturday, with neutral and European commercial tonnage largely absent and five of eight inbound vessels traveling in ‘dark’ mode with transponders off. Windward described the MOU-driven recovery that began June 18 as having stalled within 24 hours of the announcement, with the traffic profile resembling the late-blockade baseline more than a functioning open strait.
Yet the broader trend still points toward normalization. Three Saudi supertankers carrying about 6 million barrels exited the strait last week, the IEA estimates the UAE is exporting at nearly 85% of pre-war levels, and shipowners have increasingly transited with active satellite signals after safety guarantees from the International Maritime Organization. The result is two narratives running at once: a measurable re-closure signal from Tehran layered on top of a genuine, if uneven, recovery in flows.
Shipowners and insurers remain the gating factor, and they are not reassured. Industry bodies including BIMCO and INTERTANKO have warned that the U.S.-Iran memorandum leaves key questions unanswered — safe routes, traffic separation, the sequencing of ships leaving the Gulf, reporting and naval-protection procedures. The head of one major shipping insurer described conditions as a war-zone environment that changes ‘day to day, hour to hour,’ noting that not all channels through the strait are open.
For the oil market, the ambiguity is itself a source of volatility. Bears who expected the imminent reopening to mark the start of a clean normalization have instead gotten a strait that, in one analyst’s phrasing, is anything but straight. A full recovery in Gulf flows still appears weeks away as security concerns, limited navigation channels, and uncertainty over ceasefire implementation continue to deter shippers.
The stakes are hard to overstate: in peacetime the strait carries roughly a fifth of the world’s oil and a quarter of its LNG. Until the messaging from Tehran and Washington aligns and shipowners receive concrete safety assurances, the chokepoint is likely to stay in its baffling middle state — open enough to pull prices toward pre-war lows, closed enough to keep a risk premium flickering.
Continuing coverage: Geopolitics · Iran · Strait of Hormuz Explainer.