Iran has lost significant control of the Strait of Hormuz

Strait of Hormuz: Iran’s Grip on the World’s Most Critical Oil Chokepoint Is Slipping

Earthguardiansonline.com – The Strait of Hormuz — a narrow waterway barely 33 kilometers wide at its tightest point, through which roughly one-fifth of global petroleum consumption flows each day — has become the central theater of the ongoing Iran conflict. For months, Tehran and Washington have traded contradictory claims about who commands the passage. The latest shipping data, however, points in one direction: Iran’s ability to dictate terms of transit through the strait has eroded sharply, even as American naval presence tightens its watch over the waterway.

The Numbers Tell a Clear Story

Tracking firm Kpler, which monitors vessel movements through transponder signals and satellite imagery, reports that more than 80 percent of liquid cargo transiting the strait over the past two weeks has either followed the Omani corridor — a shipping lane running along the northern coast of Oman that carries United Nations authorization but draws fierce Iranian opposition — or has moved as so-called “dark” traffic, meaning vessels with transponders switched off, most likely also routing through the Omani side.

A month earlier, Kpler recorded virtually zero traffic along that southern corridor. The swing is dramatic. It means Iran, which in the spring successfully imposed tolls on vessels passing through its preferred northern lane, now finds its toll-collection mechanism starved of traffic. The expiration this week of the Memorandum of Understanding between Washington and Tehran theoretically reopened the door for Tehran to resume charging transit fees. In practice, the revenue stream has not materialized.

“Iran’s request to collect tolls is something that most Middle East folks don’t want to do and haven’t been doing,” said Dan Pickering, founder and chief investment officer at Pickering Energy Partners. “So the Oman route absolutely makes the most sense.”

Naval Escort Changes the Calculus

Despite repeated Iranian attacks on dozens of vessels attempting the northern passage, the majority of commercial operators have opted to ignore Tehran’s demands and cross the strait under the implicit protection of the U.S. Navy, which maintains a substantial patrol force in the area. The risk premium has been absorbed by the assurance of American military backing.

“It increasingly looks like Iran has at least partially lost control of the strait,” said Homayoun Falakshahi, head of crude oil analysis at Kpler.

Dark Traffic and the Limits of Visibility

Complicating the picture is the phenomenon of dark transits. Kuwait, Saudi Arabia, and the United Arab Emirates have chartered Very Large Crude Carriers — the largest class of oil tanker, each capable of carrying roughly two million barrels — to exit the Persian Gulf through the strait and then transfer cargo to customer vessels waiting in the safer waters of the Gulf of Oman, outside the strike zone, according to Andy Lipow, president of Lipow Oil Associates. To minimize their profile, these tankers routinely switch off transponders, sometimes for weeks at a stretch.

That practice has frustrated conventional tracking services. While satellite imagery can still pick up some dark vessels, traditional AIS-based monitoring struggles to account for them. The United States, by contrast, with its layered sensor network and naval assets positioned on the water, maintains continuous visual and electronic coverage of every ship transiting the strait.

Washington’s Higher Flow Figures

Energy Secretary Chris Wright disclosed last week that combined oil transits through the strait and rerouted around the waterway reached approximately 15 million barrels per day over a recent seven-day window. That figure sits considerably closer to the roughly 20-million-barrel daily average that characterized pre-war throughput than most traditional industry estimates had suggested.

The revelation prompted President Donald Trump to declare on Monday that the United States exercises “total control over the strait” — a formulation he has repeated with frequency throughout the conflict. Yet the persistence of Iranian attacks and the fact that oil flows remain well below pre-war norms undercut the notion of complete American dominion over the passage.

“If their goal is to be ‘in charge,’ then I’d say they were never completely in control to start with,” Pickering observed. “It feels like their goal is deterrence, in order to be validated as in-control. I think they are still deterring.”

Deterrence vs. Dominance

The distinction matters. A state that can threaten passage and impose costs on operators exercises a form of control, even if it cannot physically block the waterway. Iran’s continued strikes on northern-lane vessels represent precisely that kind of coercive leverage. But if tanker volumes are genuinely approaching the levels Washington reports, the practical bite of that deterrence has weakened materially compared with one or two months ago, when the strait saw far less traffic and Tehran’s toll regime operated with relative impunity.

Diplomatic Wildcards

Adding another variable to an already volatile equation: Oman and Iran are conducting bilateral talks aimed at restoring freedom of navigation through the strait — talks conducted without American participation, to Trump’s evident frustration. The outcome of those negotiations, and whether they will reshape routing patterns or reopen the northern lane to commercial traffic, remains uncertain.

“I would take all the information and headlines ‘under advisement,'” Lipow cautioned. “But it is fair to say that Iran has partially lost control of the strait.”

For the global energy market, the stakes are straightforward. Every day the strait operates below its historical throughput capacity, a structural premium is embedded in crude prices, shipping insurance rates, and supply-chain planning assumptions across Asia, Europe, and the Americas. The question now is not whether Iran retains some degree of coercive influence over the waterway — it plainly does — but whether that influence is sufficient to shape routing decisions, collect revenue, or meaningfully constrain the flow of 15 million barrels a day through one of the most consequential chokepoints on Earth.