Hormuz Transit Falls as Iran Rejects Ceasefire After Weekend Attacks
Vessel tracking data show fewer ships broadcasting passage through the Strait on Monday (2026-06-29) as operators grew cautious following attacks on two tankers and U.S. retaliatory strikes.
Commercial traffic through the Strait of Hormuz fell on Monday (2026-06-29) as vessel owners grew wary following attacks on two ships over the weekend, Rigzone reported. The number of vessels broadcasting their position through the chokepoint dropped, though ships continued to make transits — a distinction that suggests caution rather than full withdrawal.5,3
The weekend escalation began with an Iranian attack on the M/V Ever Lovely. U.S. Central Command responded with strikes on Friday (2026-06-26) and Saturday (2026-06-27). On Sunday (2026-06-28), the U.S. struck again after Iran failed to resume ceasefire compliance. The Kiku, a vessel carrying more than 2 million barrels of crude oil according to U.S. Armed Forces, was caught in the violence. Iran then declined to honor the agreement, OilPrice.com reported.4,5
Despite the renewed flare-up, ICE Brent crude front-month rose just 0.08% to $72.95 by 15:49 UTC on Monday (2026-06-29), while NYMEX WTI front-month added 0.46% to $70.63. Markets have steadily repriced since the conflict's opening weeks. When Hormuz first became a battlefield in May, crude prices surged sharply as investors priced in an extended blockade, before giving back much of those gains as traffic repeatedly recovered.1
The gap between those early-conflict highs and prices on Monday (2026-06-29) reflects the market's evolving assessment of Hormuz resilience. Traffic already recovered from near-standstill after earlier escalations. Vessel tracking data on Monday (2026-05-18) showed just one ship exiting the Gulf while two entered — a near-collapse that proved temporary within days.2
What has shifted is the number of vessels opting to broadcast their AIS position. Operators reducing electronic visibility while still transiting raises the noise floor for disruption monitoring. A vessel running dark through the Strait provides no early warning of an attack.3
Repeated episodes follow the same pattern: a flare-up cuts visible traffic, freight rates adjust, operators weigh risk premium against the cost of longer alternative routes, and partial transit resumes. Whether the Kiku incident changes that calculus for insurers is the more consequential variable here. War-risk premiums embedded in insurance costs are the mechanism through which sustained attacks price out commercial operators more effectively than any physical closure of the waterway.4
On the gas side, ICE Endex TTF front-month eased 0.63% to €42.77 on Monday (2026-06-29), while TTF Q+1 gained 3.98% to €42.29. NBP front-month rose 3.74% to €43.94. The divergence between easing spot TTF and firming forward prices reflects summer injection dynamics rather than a direct Hormuz read, but it narrows the buffer if Gulf LNG flows face prolonged rerouting costs.3
Whether ceasefire talks resume — and on what timeline — is the primary variable for physical crude markets. Each failed attempt shifts the probability distribution for when Gulf barrels return to open transit at normal insurance costs. Rigzone noted that some companies now explicitly link their transit decisions to the outcome of diplomatic contacts. The Kiku's 2-million-barrel cargo is the clearest signal yet that the risk is not abstract.4,5