Iran's 'Toll by Insurance' Gambit Escalates Tensions in Strait of Hormuz

## Iran's 'Toll by Insurance' Gambit Escalates Tensions in Strait of Hormuz The security environment in the Strait of Hormuz — already one of the most closely watched maritime corridors in the world — has deteriorated further as Iran pursues what analysts are describing as a 'toll by insurance' strategy, according to reporting by Lori Ann LaRocco for gCaptain. The move represents a significant escalation in Iran's efforts to assert influence over the strait, through which an estimated 20% of the world's traded oil passes daily. Rather than relying solely on conventional naval posturing or direct vessel seizures, Tehran appears to be exploiting the insurance and risk-assessment frameworks that underpin global shipping to impose indirect financial leverage on vessels transiting the waterway. ### Why This Matters For shipowners, operators, and cargo interests, the implications are substantial. Insurance premiums for vessels operating in the Persian Gulf region have already been elevated in recent years following a series of tanker incidents, drone attacks, and vessel seizures attributed to Iranian forces. A formalised or de facto toll mechanism tied to insurance coverage could further inflate operating costs and complicate voyage planning for tankers, LNG carriers, and bulk vessels relying on the route. The Strait of Hormuz connects the Persian Gulf to the Gulf of Oman and serves as the sole maritime outlet for major oil exporters including Saudi Arabia, the UAE, Kuwait, Iraq, and Iran itself. Any sustained disruption — whether physical or financial — to traffic through the 33-nautical-mile-wide passage carries significant consequences for global energy markets. ### Broader Context Iran has a well-documented history of using the strait as a geopolitical pressure point, including threats to close the waterway during periods of heightened tension with the United States and its allies. The latest development suggests Tehran is refining its toolkit, moving toward mechanisms that are harder to counter through conventional naval deterrence alone. Maritime insurers, P&I clubs, and war risk underwriters will be monitoring the situation closely, as any formalisation of such a toll structure would likely trigger immediate reviews of coverage terms and joint industry guidance for vessels operating in the region. Shipowners and operators with regular Gulf exposure are advised to consult with their brokers and flag state authorities for updated risk assessments as the situation develops. *Source: gCaptain / Lori Ann LaRocco*