Strait of Hormuz traffic trickles: Who's passing and who's stuck

Traffic through the Strait of Hormuz has contracted sharply in recent weeks as Iranian security warnings and attacks have deterred most commercial transits; only a small number of vessels continue to use the choke point while many tankers and cargo ships wait outside the Gulf or divert.

The situation evolved after a sequence of incidents including reported strikes on vessels, mine-laying activity and the seizure of ships, which together have raised the perceived risk of passage. State-linked and independent reports indicate several attacks and detentions in the Persian Gulf and adjacent waters, prompting carriers and insurers to restrict coverage or order ships to standby positions. Some operators have altered vessel declarations or routing to reduce exposure.

The disruption has immediate implications for energy markets. Shipping data and industry commentary show a material reduction in flows from Gulf export facilities through Hormuz, with some cargoes redirected to southern Arabian Sea ports or delayed at anchor—moves that have placed upward pressure on crude prices and pushed traders toward safe-haven assets. A limited number of transits and a “shadow fleet” operating outside normal channels have mitigated but not eliminated supply concerns.

Context matters: the current squeeze on Hormuz is tied to wider regional hostilities and military operations since late February 2026, which have included strikes, naval engagements and airspace restrictions across the Gulf. The strait’s role as a critical energy artery means prolonged disruption would have outsized effects on global supply chains and inflation dynamics, while ad hoc measures—such as rerouting and increased naval escorts—create new operational and insurance costs.

Market participants and analysts expect restricted transit volumes to persist in the near term, with the path to normalisation dependent on de-escalation, expanded escort arrangements and insurer willingness to restore coverage. Energy buyers, shipowners and freight insurers will monitor convoy proposals, port availability and routing costs; any further attacks or expanded mine threats could widen the supply shock and keep volatility elevated. Short-term relief may come from coordinated naval protection, but lasting stability requires diplomatic and security improvements.