Iran Turned the Strait of Hormuz Into a Toll Booth — and the World Has a Problem

The Strait of Hormuz has always been the pressure point of global energy trade. Iran just figured out how to charge admission.

Since late February, the Strait has operated under conditions that no shipping executive, oil minister, or naval commander would have described as normal. The U.S. and Israel launched airstrikes on Iran. Iran closed the Strait. The IRGC began boarding and attacking commercial vessels. The U.S. responded with a naval blockade of Iranian ports starting in April. What had been a maritime choke point became a war zone with a queue of tankers and cargo ships sitting in place, waiting for someone to blink.

Nobody blinked. Instead, Iran formalized the standoff into something with a fee structure.

The Persian Gulf Strait Authority — the PGSA, a body Iran established specifically for this conflict — is now the gatekeeper for commercial transit. Vessels seeking passage must apply in advance, disclosing ownership details, crew manifests, insurance information, and full cargo declarations. Iran is reportedly charging tolls of up to $2 million per transit, payable in Chinese yuan or Bitcoin. The first coordinated passage under this regime involved 26 cargo ships and tankers, including the first shipment of Middle Eastern oil to reach South Korea since the conflict began nearly three months ago.

Let that sink in. South Korea, a significant U.S. ally with substantial energy import dependency, just received oil through a process that required paying an adversary state in cryptocurrency.

The international response has been predictably fragmented. The UN’s International Maritime Organization has said a transit toll on an international strait has no basis in international law and would set a dangerous precedent. The Greek Prime Minister called it completely unacceptable — and Greece runs the world’s largest commercial shipping fleet, so that’s not a casual remark. OFAC issued a stern warning that any vessel transiting the Strait in ways that circumvent U.S. sanctions could face consequences.

But the warnings are colliding with economic reality. Transit volumes are a fraction of pre-conflict levels — maritime intelligence firm Windward identified just 167 commercial-size vessels in the Strait as of mid-May, against pre-war baseline figures that represent roughly 20% of global seaborne oil trade. For every nation telling shipping companies to hold the line, there’s another quietly working out bilateral arrangements with Tehran. Six Indian-flagged vessels transited together in mid-May following what appeared to be a separate engagement between New Delhi and Iran, entirely outside the U.S.-led coalition framework.

This is what energy dependence looks like when it meets geopolitical fracture. The countries most vocal about international law are often the same ones with the most flexibility to absorb supply disruptions. The countries actually dependent on Middle Eastern oil imports are making calculations that have less to do with legal principles and more to do with whether their lights stay on.

Iran has converted a military standoff into a revenue mechanism. Until the U.S. and its partners can offer a credible alternative path for global shipping — not just sanctions and warnings — the PGSA’s inbox will keep getting emails.