Hormuz traffic has collapsed to wartime lows, and the MoU is barely moving the needle
Hormuz throughput has dropped to levels last seen during the 2024 Red Sea campaign, even as a revived Iran–US memorandum keeps the diplomatic channel warm, leaving tanker operators routing around the Cape and the insurance market refusing to ease.
Throughput through the Strait of Hormuz has fallen to its lowest level since the early weeks of the 2024 Houthi campaign in the Red Sea, according to tanker-tracking data circulated by the Middle East Spectator channel and amplified across shipping desks on 29 June. The collapse is widening the gap between the political narrative around a revived Iran–US memorandum of understanding and the operating reality for the world's largest oil chokepoint.
The MoU in question, signalled earlier this year and periodically reprised in negotiations hosted by Oman and Qatar, was supposed to restore confidence among tanker operators who had begun rerouting capacity away from the Gulf. On the metrics that matter to shipowners, it has not. Independent confirmation from a third-party maritime data provider has not yet been published for the 29 June prints, and The Middle East Spectator's figures, drawn from aggregated AIS feeds, remain the lead quantitative reference point on the desk until the major data houses publish their weekly updates.
The diplomatic choreography has not slowed. Iran's deputy foreign minister, Kazem Gharibabadi, used a 1 July briefing to clarify that the Doha talks held that week were solely trilateral sessions with Qatar and Pakistan, denying any direct meeting with the American delegation. The clarification was aimed less at the shipping markets than at Tehran's domestic audience, which reads any US-Iran contact as a possible concession. It nonetheless illustrates the structural problem: every step that lowers the political temperature between Washington and Tehran is being offset by an operating reality in which Iranian-aligned actors continue to threaten commercial traffic.
The operator counterweight came from an unlikely venue. A Polymarket-flagged statement attributed to the chief executive of NYK Line, Japan's largest tanker operator, was circulated on X and reached the freight desks within hours. The CEO's framing was blunt: insurance premia for Hormuz transits had not meaningfully retreated from the wartime peaks set during the 2024 episode, and the company was continuing to route its VLCCs around the Cape of Good Hope. The message landed because NYK is not a marginal voice. Its decision to bypass Hormuz adds roughly two weeks of round-trip voyage time per tanker, a cost that eventually shows up in refining margins in Japan, South Korea and Singapore.
The wider pattern around the Strait is harder to read because the public record is thin. Tanker transits are visible in real time on MarineTraffic and VesselFinder, but commercial flows, particularly crude out of Iraq's southern terminals and LNG from Qatar, are reported with a lag and often revised. What the Middle East Spectator data and the NYK statement together suggest is that the marginal commercial decision has already been made. Tankers that have moved to Cape routing are not coming back until the insurance market moves first, and the insurance market moves on a longer cycle than the news cycle.
The memo of understanding is, in this reading, doing the work its architects intended: it has kept the diplomatic channel warm and given cover to back-channel conversations that might otherwise have collapsed under domestic political pressure on both sides. It was never designed to move freight rates. Confusing the two is the analytic error most common in Western coverage of the file, which tends to treat any agreement with Tehran as an automatic de-escalation rather than as a procedural step inside a longer, harder conversation about nuclear constraints, proxy capabilities and the future of Iranian crude exports.
The next test is mechanical, not political. Saudi Arabia's East-West pipeline, formally known as Petroline, has spare nominal capacity of roughly five million barrels per day, and the UAE's Habshan-Fujairah route can move close to 1.8 million. Both bypass Hormuz entirely. If their utilisation holds at the elevated levels reached during the 2024 episode, Gulf producers absorb most of the immediate commercial loss. If utilisation slips because the MoU has lowered the perceived risk, then the gap between political progress and commercial reality widens again, and the next quarter's shipping earnings from Maersk, NYK, Mitsui O.S.K. and Hapag-Lloyd will tell the story before any official dataset does.
What the 29 June prints really expose is the lag between de-escalation in the headline and de-escalation in the underwriter's office. Until that gap closes, the Strait of Hormuz will continue to behave like a wartime chokepoint regardless of what the diplomats in Doha, Muscat or, intermittently, Washington claim.
Sources: Middle East Spectator (Telegram, tanker-tracking data, 29 June 2026); Polymarket-flagged NYK Line CEO statement (X, 29 June 2026); Press TV (Telegram), Gharibabadi Doha clarification, 1 July 2026.
Desk note: This article treats the Middle East Spectator wire as the primary quantitative claim and the Polymarket-flagged NYK CEO statement as the operator-side counterweight, reflecting how the sourcing actually arrived on the desk. Where independent transit data has not yet been published, this publication has said so rather than smoothing over the gap.