Strait of Hormuz Crisis Deepens: Insurance Withdrawals Follow Attacks on Tankers, Global Shipping in Disarray

LONDON/SINGAPORE (Reuters) – The strategic Strait of Hormuz, a conduit for roughly 20% of the world’s seaborne oil, has become the epicenter of a rapidly escalating maritime crisis. Following a series of drone and projectile attacks on commercial tankers linked to the widening regional conflict, leading marine insurers have begun withdrawing war risk coverage, leaving global shipping in a state of paralysis and threatening prolonged energy market volatility.

Shipping traffic through the narrow chokepoint between Iran and Oman has slowed to a crawl after at least five vessels were struck over recent days. Iranian Revolutionary Guards have declared the waterway closed to navigation, threatening to fire on any ship attempting transit. The immediate fallout includes a burning tanker, significant damage to others, and approximately 150 vessels—from oil carriers to container ships—stranded in the Gulf and surrounding waters.

The disruption has sent shockwaves through global markets. Brent crude futures surged as much as 13%, while European natural gas prices also jumped. The ripple effects are being felt along supply chains, with about 10% of the world's container fleet now caught in the backlog, risking significant cargo pile-ups at key Asian and European ports.

“The market is facing what is essentially a de facto closure of the Strait of Hormuz,” said Munro Anderson of marine war insurance specialist Vessel Protect. “This is driven by a perception of imminent threat as much as by physical blockade.”

In response, major protection and indemnity clubs, including Gard and the American Club, have issued notices cancelling war risk coverage for the region effective March 5. This forces shipowners to seek new insurance at skyrocketing premiums. War risk rates have reportedly leapt from 0.2% to up to 1% of a vessel's hull value in just 48 hours, adding hundreds of thousands of dollars in cost per voyage.

The human and commercial toll is mounting. Attacks on the Stena Imperative and the MKD VYOM resulted in the deaths of a shipyard worker and a crew member, respectively. With insurance evaporating and risks deemed unacceptable, freight rates for oil shipments from the Middle East to Asia—already at six-year highs—are poised to climb further.

Voices from the Industry:

• David Chen, Shipping Analyst in Singapore: "This isn't just a spike; it's a systemic seizure. The withdrawal of insurance is a red line for operators. We're looking at weeks, if not months, of disruption, which will inevitably filter down to consumer energy prices globally."
• Sarah Wilkinson, Logistics Manager, UK: "Our just-in-time models are collapsing. With 10% of container capacity stuck, the delays haven't even hit the ports yet. The Q2 earnings forecasts for retailers and manufacturers are already being revised downward."
• Captain Aris Thorne (Ret.), Maritime Security Consultant: "The rules of engagement have shattered. Targeting civilian tankers and bunkering vessels is a blatant escalation. The international community's tepid response is seen as a green light, and now ordinary seafarers are paying the price." [Emotional/Sharp]
• Fatima Al-Khalisi, Energy Economist, UAE: "While the price shock is acute, regional producers have ample inventory and alternative, albeit longer, routes. The greater long-term risk is the accelerated push for energy independence and diversification away from Gulf oil, which could structurally alter market dynamics."

The crisis underscores the fragility of global energy arteries. As diplomatic efforts stall, the maritime industry braces for a prolonged period of elevated risk, cost, and uncertainty, with the Strait of Hormuz remaining a tinderbox at the heart of world trade.

(Reporting by Emily Chow and Jeslyn Lerh in Singapore, Jonathan Saul in London and Lisa Baertlein in Long Beach; Editing by Aidan Lewis and Nina Chestney)

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