How does Iran Verify Oil tankers pay their Toll at Strait of Hormuz?
Logistics: Starting at Kharg Island, tankers are given a password, then a military escort.
I wrote earlier about how Iran has the ability to selectively let oil tankers through the Strait of Hormuz, depending upon their country, whether they’ve paid a ~$2 million toll, and whether they agree to trade their oil in Chinese Yuan.
1) Alistair Crook, former British Diplomat
Here’s a description by former British MI6 (Secret Intelligence) & Diplomat Alistair Crooke of how Iran manages the logistics of verifying that it only allows tankers that have paid the toll and are trading the oil in Chinese Yuan.
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“Wow. Can these enormous tankers get through the Strait of Hormuz without insurance? Yes, I think so, largely because the arrangement is that that it’s it starts off at Kharg Island and the tankers that are buying taking from Kharg Island are first of all given a password, they load, providing to show that they’ve actually fulfilled the circumstances that they bind us in Yuan and that they are from a friendly state and then they progress up and then they give the password when they arrive at Qeshm and Larak Island at the IRGC control point at the top of Hormuz. They then they then pronounce their password. It is checked and verified and everything is correct and they get a military escort uh uh uh through the Hormuz to protect them. So they get protection, they have an escort, a naval escort through the Hormuz to the far side. And I think that tanker captains even though they may not get insurance from lawyers on their basis think that that is a good enough guarantee for them to pass through pay the toll and get on their way.”
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2) Gemini Answer
Q: How does Iran verify oil tankers pay the toll and trade in Chinese Yuan?
As of April 2026, Iran has reportedly established a de facto “toll booth” system in the Strait of Hormuz. Verification is managed through a multi-step security and financial vetting process controlled by the Islamic Revolutionary Guard Corps (IRGC).
The system is designed to bypass Western financial oversight by utilizing non-dollar currencies, primarily the Chinese Yuan (CNY) and certain stablecoins.
1. The Verification Process
Iran verifies payments and ship legitimacy through a rigid procedural “corridor”:
Submission of Documentation: Ship operators must first provide an intermediary company linked to the IRGC with full vessel details. This includes the cargo manifest, ownership chain, destination, crew list, and Automatic Identification System (AIS) data.
Geopolitical Vetting: The IRGC Navy’s Hormozgan Provincial Command screens the vessel for connections to countries Iran deems “hostile” (such as the US or Israel).
Ranking System: Iran applies a 1-to-5 scoring system based on the ship’s country of origin. Friendly nations (like China, Russia, or Pakistan) may receive lower rates or waivers, while others face the standard toll—reportedly starting around $1 per barrel or a flat fee of $2 million per voyage.
Clearance Codes: Once the toll is confirmed or paid, the IRGC issues a specific permit code and a mandatory route.
Radio Verification & Escort: As the ship nears the Strait, it must broadcast its passcode over VHF radio. IRGC patrol boats then meet and escort the vessel through Iranian territorial waters (typically around Larak Island).
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2. Trading in Chinese Yuan
The shift to the “Petroyuan” for these tolls is a strategic move to insulate the transactions from US sanctions.
Payment Rails: Transactions are often settled through China’s Cross-Border Interbank Payment System (CIPS) or via indirect channels like regional intermediaries in hubs like Dubai.
Bank Workarounds: Because these deals happen entirely within the Chinese financial system or through non-dollar banks, the money never touches a US correspondent bank, making it invisible to the U.S. Treasury’s usual enforcement tools.
Escrow-style Accounts: For oil trade specifically, yuan payments often stay in controlled accounts in China, which Iran then uses to pay for Chinese imports (machinery, medicine, etc.), creating a closed loop of trade.
3. Current Legal & Market Status
Legality: The international community, including the GCC, generally views these tolls as illegal under UNCLOS (United Nations Convention on the Law of the Sea), which guarantees “transit passage” through international straits.
Selective Enforcement: Not all ships pay. Vessels from countries with strong diplomatic ties to Tehran—such as Malaysia or India—have reportedly secured toll-free transit through high-level negotiations.
Market Impact: The introduction of this system has contributed to significant volatility in oil prices, with Brent crude frequently crossing the $110–$120 per barrel range in early 2026.
ELSEWHERE:
List of ships attacked by Iran (Wikipedia)
See: Better Map of the Strait, iStockPhotos
19:19 CONTEXT BEFORE: “.. mechanism of leadership that is dispersed and automatically replaces itself if it is affected or people die or killed during this process. And that it is all acting to a very carefully pre-prepared plan. plan not just of what the targets are but of the order in which targets should be selected and the also the volume of the war, the extent of the war was to be carefully controlled for a long war as opposed to a short war. And because he doesn’t understand that um the all that’s happened is that the leadership has gone has gone dark just like the Hezbollah leadership has gone dark. They’ve gone off the smartphones and all the other things that Palantir and the artificial intelligence giants have been using to try and for Israel to try and identify and then murder those people that he has not understood that the leadership’s there and because he doesn’t know their names, it doesn’t mean they’re not there. It just means they’re in the dark. They’ve gone dark.”
CONTEXT AFTER: “The fact that if Trump is to be believed tomorrow, Tuesday, the military will begin attacking what are indisputably civilian targets. Aside from that being a war crime, and I don’t I don’t mean to denigrate the significance uh of a war crime, what does that tell you about the failure of American military strategy that it is now reduced to attacking what would be the equivalent of the George Washington Bridge? Well, it it tells you of a huge strategic failure in the West. It’s not confined to the United States, but you know, since the Second World War, we have bet everything, bet the house on air power, and we take no account of asymmetric warfare, although we’re we’re having to take account because we’re learning from Russia and Ukraine that asymmetric warfare, that new technology is changing the face of warfare. But we’re stuck in this view that simply if you drop enough bombs on a civilian population, they will capitulate and you will get what you want. And it has failed time and time again.”