Tehran and Muscat move to monetise the Strait of Hormuz, even as traffic resumes

On 23 June 2026, Iran and Oman said they would establish a joint working group to study charges for what both governments called "maritime services" in the Strait of Hormuz. The announcement, reported by France 24 and relayed by Open Source Intel on the same day, lands in a strait that is suddenly, visibly, moving again: dozens of commercial vessels have transited the waterway since the United States and Iran signed a deal aimed at ending their war, including 42 ships in a single day on Saturday, according to BBC reporting. The two tracks — fees for passage, and the resumption of passage itself — are being driven by the same underlying settlement, and they sit in tension with each other.

The fee proposal is a commercial proposition dressed in the language of service delivery. France 24's dispatch on the Iran-Oman talks said the two governments would examine "maritime service fees" through the joint mechanism, without specifying a rate, a legal basis, or which "services" would be charged for. Oman sits on the southern shore of the strait; Iran on the northern. Together they control the only sea route into and out of the Persian Gulf for the oil exporters of the Gulf Cooperation Council, and for Iraq. Any levy imposed on that traffic would, in effect, be a toll on a corridor that the rest of the world has historically treated as international waterway.

At the same moment, the corridor is coming back to life. The BBC's report on 23 June described a sharp rise in traffic since the US-Iran deal, with shipping data showing 42 vessels moving through on Saturday alone. The same report framed the surge as a confidence effect: carriers that had rerouted, idled, or waited out the conflict were returning to the shorter route. The United Nations' International Maritime Organization has, separately, begun evacuations of roughly 11,000 sailors stranded in the strait, according to Open Source Intel's 23 June summary of the agency's remarks — a sign that the humanitarian backlog from the war is only now being cleared.

A counter-narrative worth taking seriously is that "fees" are a softer instrument than the closures, harassment, or seizures of the past two years. If a working group is the output, no toll is being imposed yet; the framing allows both governments to claim economic sovereignty over their adjacent waters while signalling to Washington that they have alternatives to direct confrontation. From Tehran's perspective, a regulated, fee-bearing regime would be a more durable source of leverage than periodic seizures of tankers, which have tended to produce US Navy escorts and escalation. From Muscat's perspective, a co-managed scheme with Iran offers a way to stay at the diplomatic table without aligning with either side of the US-Iran confrontation outright. The Omani government has, for years, positioned itself as the Gulf's quiet mediator; the working group is, in that reading, a continuation of that role.

The structural picture is harder to ignore. The Strait of Hormuz is the most consequential energy chokepoint in the world: a narrow passage between Iran and the Arabian Peninsula through which a substantial share of globally traded oil moves. Any arrangement that turns its waters into a billed service would, in effect, monetise a piece of geography the rest of the international system has treated as a common. The US-Iran deal that preceded this week's traffic rebound was sold, in Western capitals, as a de-escalation; a fee regime introduced on the back of that deal is, in plain terms, a redistribution of the rents from the chokepoint — moving some of the price of transit away from Gulf producers and shipowners and towards the two littoral states. The historical norm has been that those rents are absorbed by insurers, by tanker operators, and ultimately by the consumers who pay the fuel surcharge. The new norm, if it sticks, would give Tehran and Muscat a direct claim on that flow.

The immediate stakes are commercial and legal. Commercial: a fee would land on top of war-risk insurance premia, longer routings, and the fuel-cost premium that has been built into tanker freight since the conflict began. For a Brent or Dubai barrel, even a small per-transit charge, multiplied across the global fleet, becomes a number that will show up in shipping indices and, eventually, in retail fuel prices. Legal: the proposed levy has no obvious basis in the United Nations Convention on the Law of the Sea, which treats transit passage through straits used for international navigation as free and unimpeded. Iran's argument, articulated through state-aligned channels, has long been that the strait's security and the policing of its waters is a sovereign service; the counter-argument, which would come from the US Navy, the EU, and most flag states, is that freedom of navigation is not a service for which a bill can be rendered. The working group is, among other things, a forum in which that legal fight can be staged without a ship being boarded.

What remains genuinely uncertain is whether the fee framework is a durable feature of the post-deal order, or a negotiating posture that will be traded away in a subsequent round. The sources covering the 23 June announcements do not specify a rate, a starting date, or the legal vehicle the two governments intend to use. They also do not record a US reaction to the proposal; given that the deal that brought ships back into the strait was, in part, sold on the promise of restored transit, a fee regime introduced in its first weeks would create a near-term test of Washington's tolerance. The evacuation of stranded sailors, meanwhile, is the part of the story that the working group's communiqués do not address — and it is the part that shows what the war actually cost the people who work the route.

For European and Asian importers, the practical question is whether the new traffic is built on confidence in the deal, or on a calculation that fees, once announced, can be absorbed. For Tehran and Muscat, the working group is a chance to convert a moment of leverage into a longer-term revenue line. For Washington, it is the first item on a list of follow-on questions the US-Iran deal did not resolve. The Strait of Hormuz, in other words, is no longer just a place ships pass through. It is on its way to becoming a place ships pay to pass through — and the price of that change will be set, deliberately or by default, in the weeks ahead.

This piece sits between two of the wire frames for the day. The fee story is being told in the Gulf as economic-statecraft; the resumption-of-traffic story is being told in London and Washington as a confidence vindication. Monexus is reading them as two halves of the same settlement, and has weighted the Omani position as a diplomatic act rather than a subordinate move.

Wire provenance

This editorial synthesis draws on the following public wire/social posts:

• https://t.me/osintlive
• https://t.me/osintlive
• https://t.me/france24_en
• https://t.me/BBCWorldoffl