War insurers urge shipowners to pause Hormuz trips after attacks, sources say

• War insurance premiums increased from 2% to 3% of vessel value in 24 hours, with underwriters suggesting rates could reach 5% or higher, translating to hundreds of thousands of dollars in additional daily costs
• President Trump stated an agreement to end the war with Iran is 'over' and indicated new strikes on Iranian targets would likely occur, causing volatility in global oil prices
• The IMO Secretary-General called for governments to engage insurers to ensure premiums 'reflect current realities' rather than peak crisis levels, citing the strain on shipowners

Summary

Key Developments:

War insurers are advising shipping companies to temporarily halt voyages through the Strait of Hormuz following attacks on three tankers on July 8, 2026. The attacks escalated tensions between Iran and the U.S., with Washington revoking oil licenses and launching retaliatory strikes on Iranian targets. President Trump indicated negotiations to end the conflict had collapsed, with additional U.S. strikes anticipated.

Insurance Market Impact:

War risk insurance premiums for vessels in the Gulf have surged sharply within 24 hours, rising from 2% to nearly 3% of a vessel's value. Industry sources suggest rates could reach 5% or higher as the crisis intensifies. These policies, typically issued on seven-day terms and reviewed every 24-48 hours, now add hundreds of thousands of dollars in daily costs for shipowners.

Regulatory Response:

The UN's International Maritime Organization (IMO) recommended avoiding Hormuz transits until crew safety can be assured. IMO Secretary-General Arsenio Dominguez expressed concern over sustained high insurance costs and urged governments to engage with insurers to ensure premiums reflect current conditions rather than crisis peaks.

Market Implications:

The developments triggered jumps in global oil prices as the Strait of Hormuz is a critical energy shipping corridor. While war coverage remains available, the escalating premiums and safety concerns threaten to disrupt global energy supply chains. The insurance strain compounds operational challenges for shipowners navigating the geopolitically volatile region.

Affected Sectors: Energy transportation, marine insurance, global oil markets, shipping industry.