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Brent fell to about $91 in late May 2026, down roughly 19 per cent on the month on optimism over a ‘largely negotiated’ deal. The deflation from the $126 peak separates two risks that were previously bundled: about $35 of war-and-blockade premium has left, while roughly $20 a barrel of institutional premium stays. That residual — about $2 billion a day — is the price of the institutional gap, now visible directly in the crude strip.

On 23 May 2026, Trump said an Iran deal to reopen the Strait of Hormuz was ‘largely negotiated.’ The contemplated MOU lifts the blockade and opens a 60-day nuclear window — but its ‘unrestricted navigation’ language can be read two ways: UNCLOS free transit, or merely the end of the US blockade with the PGSA arrangement intact. Iran’s Fars response insists the strait ‘remains under Iranian management.’ This post reads the gap that the language points conceal.

The Strait of Hormuz has two shores. The southern bank is Oman’s Musandam Peninsula, and at 21 nautical miles wide with two 12-mile territorial seas, there is no neutral corridor — every transit passes through Iranian or Omani waters. Oman’s UNCLOS free-transit position is the single most important lever for converting the unilateral Iranian arrangement into an equal-access institutional one. This post reads the other shore and the Malacca-style cooperative model it points toward.

On 10 May 2026, the Qatari LNG carrier Al Kharaitiyat transited Hormuz on the Tehran-approved corridor to Pakistan under a government-to-government LNG arrangement. The transit is the cleanest available case study of the bilateral carve-out pattern. This post reads the transit in detail, explains why the bilateral mechanism cannot scale to the broader LNG market, and identifies what an institutional default would replace it with.

The 12-article statute behind the PGSA, ratified by Iran’s National Security and Foreign Policy Committee on 21 April, formalises the legal architecture: rial-denominated fees, Israeli vessels banned, hostile-flag SNSC approval, 20 per cent cargo confiscation for non-compliance. This post reads each substantive provision against the equivalent at the Suez Canal Authority and the Panama Canal Authority, and shows where the legal-architecture choice produces a sovereignty-asserting state-security instrument rather than a chokepoint authority.

Six India-flagged vessels transited inbound on 18 May 2026 in a coordinated cluster under bilateral Iran-India arrangements. The chokepoint is now operationally bifurcated: a compliant fleet under PGSA-administered transit and a holding queue of about 2,000 vessels waiting for the institutional configuration the operator class can use. This post reads the bifurcation, the historical parallel of the 2018-2025 shadow fleet, and what a treaty-backed authority would do to consolidate it.

On 18-19 May 2026, Iranian state-affiliated reporting disclosed ‘Hormuz Safe,’ a crypto-settled state-backed marine insurance product for vessels using the PGSA corridor. The launch lands the day after the PGSA formal announcement. This post reads what Hormuz Safe can and cannot do relative to the International Group P&I cover the global operator class actually uses, and what a treaty-backed authority would do differently.

On 18 May 2026, Iran formally announced the Persian Gulf Strait Authority, the institutional body administering its toll-booth corridor through the Strait of Hormuz. Tehran has built a chokepoint authority. It is not, on its present design, the configuration the operator class, the United States, China, the GCC, or the site has been arguing for. This post reads the PGSA in detail and identifies the six features that separate it from a treaty-backed authority on the Suez or Panama model.

Trump and Xi met in Beijing on 14-15 May, the first US state visit to China since 2017. The joint position supports reopening the strait and rejects ‘a charge for transiting through it.’ This post reads what the phrase means against UNCLOS Article 26 and the Suez/Panama services-fee precedent, separates the rejection of the Iranian sovereignty-asserting toll from the question of how a working authority recovers its institutional cost, and identifies where the summit narrows the negotiating space.

Project Freedom paused 5 May on ‘great progress’ toward a deal. By 11 May, Trump called Iran’s response ‘a piece of garbage’ and the ceasefire ‘on massive life support.’ By 15 May, a ship had been seized and another sunk. The ten days are a natural experiment in whether operational measures can substitute for institutional ones. This post reads the answer the experiment produced.