Supply Chain Analysis 4 min read

The Toll

The Toll

On July 2, Bloomberg reported that leading European powers now accept ships transiting the Strait of Hormuz will have to pay fees to Iran and Oman. Two diplomats described it as “a given.”

This is the structural legacy of the war. Not the oil spike (which already reversed). Not the insurance repricing (which locks for 12 months). The permanent change: Hormuz is now a toll road.

The Mechanism

UNCLOS Article 26 prohibits tolls on ships exercising transit passage through international straits. Full stop. But it includes a loophole: bordering states may cooperate to provide services — navigational safety, environmental protection, emergency preparedness — and charge users for them.

Iran and Oman are driving through that loophole at speed.

What Oman calls it
Voluntary service fees

Modeled on Malacca Strait voluntary contributions. “Navigational assistance, vessel insurance, environmental protection.”

What Iran calls it
Mandatory payments

Compulsory fees for all transiting vessels. Iran claims this could generate $40 billion annually.

The proposed rate: $1 per barrel. The diplomatic text says “voluntary.” Iran says “compulsory.” The distinction will be tested the first time a ship refuses to pay.

The Math

Pre-crisis, the strait carried:

Commodity Daily Volume Annual at $1/bbl
Crude oil ~14.2M bbl/day ~$5.2B
Petroleum products ~5.8M bbl/day ~$2.1B
LNG (Qatar/UAE) 112 bcm/year TBD
Total oil alone ~20M bbl/day ~$7.3B

Iran’s $40B figure presumably includes LNG tankers, container vessels, and bulk carriers at higher per-vessel rates. The oil math alone yields $7.3 billion per year at pre-crisis volumes — split between Iran and Oman.

Who Pays

Not the ships. The cost passes through the supply chain. Every barrel of Saudi, Iraqi, Kuwaiti, Qatari, and Emirati oil gets a new cost layer. Every LNG cargo from Qatar — and Qatar has no alternative route — absorbs the fee.

The asymmetry: Saudi Arabia exports ~5.5M bbl/day through Hormuz (~38% of all crude flows). At $1/barrel, that’s $2B/year Saudi Arabia effectively pays Iran for the privilege of shipping its own oil. Saudi is the most vocal opponent. It should be.

The downstream trace:

The Positions

ACCEPTS FEES OPPOSES FEES Iran Oman Europe “inevitable” Asian importers silent so far United States “unacceptable” Saudi Arabia most exposed UNCLOS purists Jun 17 MOU signed Jul 2 Europe capitulates ~Aug 17 Free passage expires

The MOU guarantees free passage for 60 days — until roughly August 17. After that, the fee regime kicks in. Europe’s capitulation before the deadline even arrives tells you how this ends.

The Precedent Problem

This has no precedent. The Malacca Strait — which Iran and Oman cite as their model — uses voluntary contributions. Malaysia, Indonesia, and Singapore collect perhaps $50–100 million per year through a cooperative trust fund. Users contribute because it’s cheap and maintains goodwill.

Iran is proposing something categorically different: mandatory payments backed by the implicit threat of a country that just closed the strait for four months. The “service” is not demining or navigational aids. The service is not closing the strait again.

If this stands, every chokepoint state has a new playbook:

  1. Demonstrate capacity to disrupt
  2. Create a crisis
  3. Negotiate a “service fee” as part of the resolution
  4. Collect rent permanently

Egypt already charges Suez Canal tolls — but those are for a man-made canal with actual infrastructure. Turkey charges nothing for Bosphorus transit under the Montreux Convention. The Danish Straits are toll-free since 1857. Hormuz would be the first natural international strait to impose mandatory fees in the modern era.

What This Changes

The oil price already absorbed the war. Brent is $71 — below pre-war levels. The insurance market already priced the risk — 12 months of elevated war premiums locked at Jul 1 renewal.

The fee is the third layer. It doesn’t spike and fade like oil. It doesn’t renew annually like insurance. It’s permanent. A structural cost embedded in every supply chain that touches the Gulf.

The three layers
Oil price
Spiked → reversed
Temporary
Insurance
Repriced at renewal
12-month lock
Transit fee
Embedded in structure
Permanent

Markets are pricing an oil crisis that’s ending. Insurance is pricing a risk that’s locked. The fee is pricing something new: the monetization of geography.

Day 124 of the Hormuz crisis. Transit recovering to ~43 vessels/day (Jul 1 Windward data) vs 84–100 pre-crisis. Brent $71.19. Khamenei funeral begins Jul 4. Halt-attacks agreement holding through Jul 2. Doha talks paused for funeral. 46 days remain on 60-day MOU free passage window.