The Price Tag on a Centuries-Old Principle
The numbers come first. Iran is demanding a 5% or 7% service fee per barrel of oil transiting the Strait of Hormuz—a levy that analysts say would generate close to $20 billion annually, before counting fees on natural gas, petrochemicals, helium, fertilizer, and container cargoes.
That figure is not a negotiating footnote. It is a structural threat to the post-World War II maritime order, and the ripple effects could reach every port, every fuel pump, and every consumer on earth.
'The way that we've known maritime security is moving into a new era, and the rules are still getting rewritten,' Michelle Brouhard, head of policy and geopolitical risk for the Kpler energy intelligence firm, told Fortune. 'It's going to be expensive; it's going to be inflationary; and it's also going to create a lot of benefits for people who start onshoring industrialization.'
Her bottom line was blunter still: 'I think that the 'freedom of the seas' is dead.'
A Domino No One Can Stop
The freedom of the seas is not a slogan. It is a centuries-old legal principle codified in Woodrow Wilson's Fourteen Points after World War I and carried today through the U.N. Convention on the Law of the Seas. It holds that maritime transit and commerce must remain free and open to all nations.
Iran's toll demand, if it holds, breaks that framework—and Brouhard argues the breach is contagious. 'Once Iran said they were going to charge a fee—if they charge a toll—then everyone is going to charge a toll,' she said. Malaysia and Indonesia could follow in the Strait of Malacca. Morocco could move on the Strait of Gibraltar. Waterways already disrupted by Russia's war in Ukraine are also in play.
'This is one of the last known natural resources that someone can make money off of,' Brouhard said. 'Imagine if you're Malaysia, you're a relatively poor country. Now, all of a sudden, you can charge a toll.'
Shipping companies and insurers are already pushing back—some threatening to cancel coverage on vessels that pay tolls or involuntary fees—but opposition and prevention are different things.
The Bargaining-Chip Scenario
Not every analyst reads the situation as an irreversible rupture. Bob McNally, former White House energy advisor under George W. Bush and founder of the Rapidan Energy Group, frames the toll demand primarily as leverage. 'We look at the whole question of Hormuz tolls as mainly an Iranian bargaining chip that they're willing and able to give up for big sanctions relief and other things,' McNally said. 'We just don't think heavy-handed Iranian tolls are going to be the future. That could be wrong.'
Gregory Brew, senior analyst for Iran and energy with the Eurasia Group, sees a third path: Gulf Cooperation Council states making regular payments to Tehran—not a per-vessel fee system—to keep the strait open. 'My expectation has been that money will be delivered to the Iranians in some way, shape, or form,' Brew said, adding that the Strait of Malacca comparison would likely be used 'to frame the agreement in Hormuz as legal and acceptable,' even though the sums involved would be far larger.
What It Means for Free Enterprise
Whatever form the final arrangement takes—hard toll, voluntary fee, or GCC side payment—the direction of travel is the same: the cost of moving energy and goods through the world's most critical chokepoints is going up, and that cost lands on producers, shippers, and ultimately consumers.
Brouhard ties the acceleration directly to the broader unraveling of the post-war order, noting that the trend was already in motion before the current conflict. The market has already voted: energy intelligence firms, insurers, and logistics operators are all repricing risk in real time. Free enterprise thrives on clear rules and open lanes. When a single regime can commoditize a natural waterway and extract billions from global trade, the bill does not go to governments—it goes to the taxpayer, the trucker, and the family filling up at the pump.
