Hormuz Toll Threat Exposes U.S.–Iran Power Struggle at World’s Oil Chokepoint
Donald Trump’s threat to levy U.S. “tolls” in the Strait of Hormuz if an Iran deal fails, and Tehran’s vow that “there will be a fee,” are turning the world’s key oil artery into a bargaining chip. Tanker operators, Gulf governments, and energy markets now have to price in the risk that access to Hormuz is no longer purely a maritime-law question but a tool of hard economic coercion.
Control of the Strait of Hormuz is moving from a background constant of global trade to an explicit point of coercion between Washington and Tehran, after U.S. President Donald Trump threatened to charge American “tolls” on shipping if a final agreement with Iran is not reached and Iranian officials signaled they would impose their own fees.
In a message in English and Spanish on June 20, Trump said there would be no tolls in Hormuz during the 60‑day ceasefire period and none afterward “unless they are imposed by and for the United States of America, in the event the deal is not completed,” describing them as payment for America’s “Guardian Angel” role protecting Middle Eastern countries. The comments came as U.S. and Iranian negotiating teams converged on Switzerland for talks centered on a Lebanon ceasefire and Iran’s nuclear program.
An Iranian negotiator, Professor Mohammad Marandi, responded publicly that “there will be a fee,” calling that position final. The exchange sharpened questions about whether access to Hormuz — through which a significant share of globally traded crude and LNG passes — could be conditioned on political concessions or payments, rather than treated as an open international waterway under long‑standing practice.
For shipowners, charterers and insurers, the rhetoric is not abstract. Any credible suggestion that new costs or operational constraints could be imposed at Hormuz can push up war‑risk premiums, complicate voyage planning and, in extremis, prompt rerouting of cargoes. Gulf exporters would face higher transaction costs at the very moment several are trying to lock in long‑term buyers in Asia, while large Asian importers, from India to South Korea, would be left more exposed to both price spikes and physical disruption risk.
The threat of U.S. tolls also has a legal and diplomatic dimension. While Washington already enforces extensive sanctions on Iranian energy exports, the idea of charging broad passage fees in a narrow international strait would raise questions under the UN Convention on the Law of the Sea — even though the United States has not formally ratified it — and could draw protests from other maritime powers that depend on guaranteed transit, including China, Japan and European states.
Tehran, for its part, has been tightening its own rhetoric. Iran’s Islamic Revolutionary Guard Corps has declared that it no longer considers itself bound by commitments related to keeping shipping lanes open that were linked to a halt in “aggression,” and announced that the strait would remain closed to vessels associated with Israel and its supporters until further notice. That position, if enforced, directly targets specific shipping flags or beneficial owners and pushes private operators into the middle of a geopolitical confrontation.
This is why Hormuz risk does not need a full blockade to matter: a handful of targeted restrictions and threats is enough to make shipping companies, insurers and governments hesitate, and that hesitation alone can move prices and policy. Every new public statement from Washington or Tehran that treats the strait as a leverage point makes it harder to revert to a purely technical discussion of navigational safety.
The next indicators to watch are whether any specific vessels are interdicted or turned around under Iran’s announced closure to Israel‑linked shipping, and whether the U.S. administration moves beyond rhetoric to outline how a toll regime would work in practice. Positions taken by major importers in Asia and Europe at the UN or in bilateral channels — especially if they warn against politicizing passage rights — will show how much international support either side has for turning the world’s most sensitive energy chokepoint into a tariff line.
Sources
- OSINT