Lead
Since President Trump announced emergency measures to “ensure the free flow of energy to the world” and unveiled a $20bn reinsurance scheme on Friday, only two vessels without clear Iran or Russia links have made the risky passage through the Strait of Hormuz. Maritime tracking data shows one of those ships temporarily switched off its transponder and the other signalled Chinese ownership and crew. The normally busy chokepoint, which typically handles about 100 transits a day and roughly 20% of global petroleum consumption, remains effectively closed to most international shipping as attacks continue. The immediate result is a sharply reduced flow of ships and renewed volatility in energy markets.
Key Takeaways
- Since the president’s announcement on Friday, maritime records show only two non-Iran/Russia-affiliated vessels traversed the strait; one switched off its transponder while another signalled Chinese ownership and crew.
- The Strait of Hormuz normally sees roughly 100 vessel transits daily and carries about 20% of the world’s petroleum consumption and one-fifth of global liquefied natural gas each day.
- Kpler data identified the Chinese-built Shenlong, sailing under a Liberian flag, as having gone dark near the strait before reappearing near India en route to Mumbai.
- Other weekend transits — about eight vessels — appear linked to Iran or Russia, including named ships cited by US authorities such as Dalia, Parimal and Cume.
- Oil briefly jumped to about $119 a barrel, the highest since 2022, before retreating below $90 after comments suggesting the conflict could end soon.
- Trump announced a $20bn reinsurance fund and urged shipowners to ‘show some guts’, while also suggesting naval escorts despite insurer warnings that escorts could increase targeting risk.
- Analysts warn that unless security materially improves, commercial flows are likely to remain extremely limited for weeks to months, with China positioned as the most likely diplomatic intermediary.
Background
The Strait of Hormuz is one of the world’s most consequential maritime choke points, linking the Persian Gulf to open waters. Under normal conditions about 100 commercial vessels transit the strait each day, carrying crude oil, refined products and liquefied natural gas whose volumes are critical to global markets. In the days after US and Israeli strikes on Iran, Tehran responded by striking at least 10 ships attempting to pass, an escalation that has effectively severed routine passage for many international operators.
Shipowners face a layered risk calculus: missile and drone strikes, the prospect of secondary sanctions, and the operational hazard of navigating a contested sea lane. Over recent weeks, some vessels tied to Iran or Russia have continued to move, sometimes under flags of convenience, while many Western-linked owners have steered clear. Before this crisis, roughly one-fifth of global petroleum and LNG volumes transited the strait daily, a concentration that amplifies any disruption into immediate price and supply effects worldwide.
Main Event
On Friday the US president announced a $20bn reinsurance scheme intended to underwrite shipping through the strait and said the program would take effect immediately. He also told shipowners to have courage in transiting the war zone and floated the idea of naval escorts. The announcement aimed to reduce insurance costs and restore commercial confidence, but did not alter the immediate security conditions on the water.
Maritime tracking agency Kpler recorded only two vessels without clear Iran or Russia ties using the narrow passage after the announcement. One, the Shenlong, operated by a Greek manager but sailing under a Liberian flag, switched off its transponder as it neared the strait and reappeared near India as it headed for Mumbai. Another, the bulk carrier Sino Ocean, signalled ‘CHINA OWNER_ALL CREW’ while transiting after loading in Mina Saqr, UAE.
The trickle of through-transits contrasted sharply with the normal flow. During the recent weekend, about eight other vessels entered or exited the Gulf via the strait but these were reportedly linked to Iran or Russia, including tankers identified by US authorities such as Dalia and Parimal, and vessels previously sanctioned like Cume, Danuta I and HH Glory. Analysts say some ships may be concealing movements by going dark, but that does not erase the larger reluctance among mainstream owners to risk attacks.
Markets reacted immediately. Oil spiked to around $119 a barrel, the highest level since 2022, before falling below $90 after messaging suggesting a near-term de-escalation. Insurers and freight analysts emphasized that risk perception — especially the threat of missile or drone strikes — is the core deterrent for shipowners, not simply premiums.
Analysis & Implications
The gap between Trump’s reinsurance pledge and the lack of resumed traffic highlights the limits of financial backstops against kinetic risk. Insurance mitigates economic loss from damage, but it does not reduce the probability of being attacked. Shipowners repeatedly cite the prospect of missile and drone hits as decisive; until the security environment improves, financial incentives alone are unlikely to restore normal flows.
Freight markets have been bidding up rates, which might cover higher premiums for some carriers, yet even record-high freight rates have not broken the deadlock. That suggests the decisive factor remains safety rather than economics. Naval escorts — proposed as a protective measure — carry their own strategic cost: insurers warn escorts could make commercial vessels more salient targets and complicate legal and operational rules of engagement for merchant shipping.
Diplomacy is therefore the fastest potential route to normalisation. Analysts note China has the most to lose economically and could play a lead broker role between Tehran and Gulf or Western powers. A diplomatic settlement could reopen traffic within one to three weeks, according to some assessments; a protracted, decentralised campaign of harassment by dispersed Iranian proxies, however, could stretch the disruption into months.
For energy markets, even a short interruption has outsized effects because of the volume that transits the strait daily. Short-term volatility in oil and LNG prices will pressure importers, particularly in Asia. Longer-term, sustained disruption could accelerate diversification of supply routes, boost demand for alternative delivery infrastructure such as pipelines, and alter strategic naval deployments in the region.
Comparison & Data
| Metric | Normal Level | Observed During Weekend |
|---|---|---|
| Vessel transits per day | ~100 | ~10 or fewer |
| Share of global petroleum consumption | ~20% | Significant reduction in flows |
The table contrasts typical daily transit volumes with the recent weekend snapshot. While exact counts fluctuate, maritime data firms report a steep drop from roughly 100 daily transits to a trickle dominated by vessels with Iran or Russia links. That fall explains immediate price spikes and underscores why underwriters and commercial operators remain cautious.
Reactions & Quotes
Official and expert reactions have been mixed, reflecting the gap between policy promises and operational realities.
We will ensure the free flow of energy to the world, and insurance will take effect immediately.
President Donald Trump, public announcement
Trump’s pledge aimed to reassure markets and shipowners, but the subsequent limited crossings show that confidence has not returned. Officials framed the measure as immediate, while many commercial operators called for clearer security guarantees.
Even record-high freight rates have failed to break the deadlock.
Matthew Wright, lead freight analyst at Kpler
Wright’s assessment points to a de facto risk premium that markets cannot simply buy away. Analysts stress that operational risk of attack outweighs potential earnings in a contested waterway.
G7 finance ministers are ready to take the necessary measures to support global energy supply.
G7 finance ministers, communique
The G7 signalled readiness to act but stopped short of releasing strategic reserves, leaving a key lever unused for now. That restraint reflects both political considerations and differing assessments among members about the best immediate step.
Unconfirmed
- Exact number of vessels that went dark or concealed their identities over the weekend is unverified; tracking firms report likely cases but complete attribution is uncertain.
- The effectiveness and uptake rate of the US $20bn reinsurance scheme remain unconfirmed; details on eligibility and claims handling have not been publicly disclosed in full.
- Timelines for a diplomatic resolution are speculative; estimates ranging from weeks to months depend on opaque negotiations and Iran’s operational choices.
Bottom Line
Financial measures alone have not restored shipping through the Strait of Hormuz. Despite a high-profile reinsurance pledge and public urgings from the White House, most international shipowners remain deterred by the prospect of missile and drone strikes and the operational hazards of a war-affected sea lane. The limited number of commercial transits since the announcement underscores that confidence is still missing.
The faster path to normalisation is diplomatic de-escalation, with China likely to play a central mediating role given the regional economic stakes. Absent a credible security improvement, markets and import-dependent economies should prepare for sustained volatility, and policymakers will face pressure to coordinate both military protection and economic countermeasures to maintain energy supply.
Sources
- The Guardian (news report)
- Kpler (maritime data agency)