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Brent touched $126 overnight on April 30 — highest since 2022 — before pulling back to about $114. Both halves of the move are informative. The spike priced an option that the Iranian new-chapter announcement and the US blockade extension might converge into further escalation; the pullback un-priced part of that option as the news cycle settled. The chokepoint risk premium is now the marginal component of global crude price.

On Persian Gulf Day, April 30, Iran’s Supreme Leader announced a new framework for managing the Strait of Hormuz: rial-denominated proceeds, surcharge for sanctions countries, the General Staff of the Armed Forces as administering body, and an invitation to GCC participation. Set side by side with treaty-backed practice at Suez and Panama, the framework is a unilateral authority claim that clarifies, rather than closes, the institutional gap.

The US Treasury has stated this week that payments to Iran or the IRGC for Hormuz passage, direct or indirect, are not authorised for US persons or US banks. Walked through at desk level for tanker owners, charterers, correspondent banks, and refiners, the rule closes the dollar payer set for the current toll arrangement. The four-leg architecture of the regime is now complete from the US compliance side.

Brent closed at $118 and WTI at $107 on April 29 after Trump said the US blockade of Iran will continue until a nuclear deal. US gasoline is forecast at $4.30/gal for the month. Walking a single gallon back to the tanker shows the chokepoint fee is small. The chokepoint risk is what is doing the work in your fill-up.

Approximately 20,000 seafarers are stranded across roughly 2,000 vessels in the Persian Gulf. The ITF has fielded 1,900 assistance requests, repatriated 450 crew, and designated the strait a Warlike Operations Area. The IMO Secretary-General has stated there is no safe transit anywhere in the strait. None of the routine coordination a treaty-backed chokepoint authority would provide currently exists at Hormuz.

On 25 April OFAC sanctioned Hengli Petrochemical (Dalian), China’s second-largest teapot refinery, for buying Iranian crude, plus 40 shadow-fleet vessels, plus the named Iranian Armed Forces General Staff oil-sales arm Sepehr Energy. Combined with yesterday’s $344M USDT freeze, three of the four legs of the Hormuz toll architecture have been entity-mapped in 48 hours. The Suez and Panama models have no off-grid leg because they are treaty-backed.

On 25 April the International Chamber of Shipping, representing more than 80 percent of global merchant tonnage, formally stated that both US and Iranian seizures violate international law and that Iran’s stated wish to charge tolls at Hormuz has no basis in international law. It is the first time the operator class has named a public position on the toll regime itself, and the position is exactly the one a treaty-backed alternative authority would need to take.

On 24 April the US Treasury and Tether jointly executed a 344 million dollar USDT freeze across two Tron wallets associated with Hormuz transit-fee receipts. The action is less a political moment than an architectural one. It reveals what kind of payment channel a non-treaty toll regime can sustain, and why a treaty-backed authority chooses conventional banking instead.

Iran calls US interdictions piracy. The US calls Iran’s toll extortion. Both are arguing over a treaty, UNCLOS, that neither has ratified. That is the institutional core of the crisis: a dual blockade of one-fifth of global seaborne energy, invoking legal norms from a treaty both parties have explicitly declined to join. The flag states of the trapped ships have no tribunal. A ceasefire reopens the water. Only a treaty resolves the governance vacuum.

The Malacca Strait carries 23.2 million barrels per day, 29 percent of global seaborne oil, through a 900km corridor with no treaty-backed toll authority. Between 20 and 24 April, six major outlets ran Malacca explainers triggered by the Hormuz vacuum. Asian capitals are pricing in what had been a dormant vulnerability. The Hormuz crisis is teaching the world what the cost of ungoverned chokepoints actually looks like.