War Insurers Advise Shipping Companies To Avoid Strait Of Hormuz After Latest Attacks

Marine Insight· July 12, 2026

War risk insurers and the International Maritime Organization are advising shipping companies to avoid the Strait of Hormuz following a series of attacks on commercial tankers. The escalating conflict between the United States and Iran has led to a significant increase in maritime security risks and operational costs for vessel owners. These developments are critically impacting global trade routes as insurance premiums surge and military tensions threaten a potential naval blockade of Iranian ports.

Following the attack on three commercial tankers in the Strait of Hormuz, war insurers have recommended that shipping companies suspend sailings through the critical waterway while they review policy terms. In response to the maritime incidents, the United States has launched strikes against more than 80 sites in Iran, including the Chabahar Port, and deployed over 20 warships to West Asia. President Trump has declared the deal with Iran to be over, accusing the nation of violating ceasefire agreements and threatening further military action, including the potential reimposition of a naval blockade on Iranian ports.

The geopolitical friction has resulted in immediate economic consequences for the shipping industry, with global oil prices rising by 5% and war risk insurance premiums jumping from 2% to 3% of a vessel's value in a single week. This one percent increase translates into additional costs of thousands of dollars per day for ship owners and operators. International Maritime Organization (IMO) Secretary-General Arsenio Dominguez noted that these soaring insurance rates are compounding the financial strain on the sector, advising that transit through the Strait should be avoided as long as crew safety and security cannot be guaranteed.

Technical details regarding the attacks suggest that the targeted vessels had deviated from the routes authorized by Iran’s Islamic Revolutionary Guard Corps (IRGC), opting instead for a path closer to the coast of Oman. While Iran has reasserted its right to manage and control the Strait of Hormuz, it blames the destabilization of the region on the massive U.S. military presence. As the situation evolves, the maritime industry faces a dual challenge of navigating physical threats to crew and assets while managing the rapidly escalating costs of operating in one of the world's most vital shipping corridors.

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