The Strait of Hormuz deal both sides can't afford to lose

A deal over the Strait of Hormuz looks close. That is not the same thing as saying one will happen, or that any such agreement would restore the waterway to normal. The draft being parried between Tehran and Muscat, with Washington watching from behind a naval blockade, does not merely concern shipping lanes. It is a last act of coercive bargaining between two combatants whose real leverage is running out.

The surface question is technical: who manages the lanes, who pays whom, and which ships may pass? The real question is institutional. If Iran succeeds in turning a wartime blockade into a peacetime toll and a veto over which nations may transit the waterway, it will have achieved by coercion what international law was designed to prevent. If the United States walks away, it endures rising energy costs through a midterm election while its precision-munitions stockpiles dwindle. Neither outcome is desirable. The deal both sides are pretending to approach is the least bad option, provided the details do not embed a permanent precedent.

The proposed framework, as leaked by Iranian state media on August 7th, is striking in its ambition. Ships entering the Persian Gulf would use an Iranian-controlled northern route; ships exiting would use an Oman-controlled southern lane. Iran would handle navigation guidance, vessel traffic monitoring, maritime security and environmental protection. American and Israeli vessels would be banned, with fines of up to 20% of cargo value for violators. Iran also seeks transit fees of 5% to 7% of cargo prices; Oman has floated roughly 3%. The agreement remains conditional on Washington ending its blockade of Iranian ports.

Iran has long wanted to institutionalise the power it seized by accident. When the United States and Israel launched strikes on Iran on February 28th - "Operation Epic Fury", which killed Supreme Leader Ali Khamenei - the IRGC responded by closing the strait. Before the conflict, the waterway carried roughly 25% of global seaborne oil trade and one-fifth of the world's liquefied natural gas. Iran's blockade was the largest disruption to energy supply since the 1970s. Brent crude rose from under $80 to $126 a barrel; Dubai crude hit $166. Gulf producers declared force majeure; global inflation jumped. Iran did not plan to become a maritime toll-collector. It discovered it could, and is now negotiating to make the arrangement permanent.

To be sure, Iran is not negotiating from strength. Its military has taken severe damage over five months of fighting. Iran reports more than 3,400 deaths since the war began. A succession struggle followed Khamenei's death. The economy is strained, the currency is weak, and dozens of Iranian tankers remain idling off its own coast, representing roughly 40 million barrels of stranded export capacity. Iran has dropped its original demand for full control over both directions of traffic. Yet the draft still demands far more than international custom would permit. The Strait of Hormuz is an international waterway under the United Nations Convention on the Law of the Sea. Coastal states may not charge tolls, veto passage, or exclude nations from a strait used for global commerce. Iran's proposal is an exercise in institutionalised coercion.

The United States is no better positioned. Mr Trump faces the November midterm elections, rising domestic fuel costs and a war that has not yet delivered its stated objectives: dismantling Iran's nuclear programme, curbing its regional attacks, or creating conditions for regime change. Behind the scenes, the constraint is sharper. According to the Center for Strategic and International Studies, the US military has expended between half and two-thirds of its stockpiles for at least four of its most critical munitions types since February. The Army has used virtually all its long-range Precision Strike Missiles and ATACMS. Patriot interceptors are down to fewer than 827 from a pre-war stock of around 2,200; THAAD interceptors to fewer than 278. Replenishment, even with accelerated production under the Defence Production Act, will take years for most systems. A US official told Reuters on August 7th that "we expect a deal soon". The urgency is understandable. It is also a negotiating liability.

The Gulf Cooperation Council - Saudi Arabia, the UAE, Kuwait, Qatar and Bahrain - wants the strait open with the minimum of permanent damage to international norms. These countries have historically rejected any Iranian management of the waterway. Yet they are also the ones whose oil and gas exports cannot reach market without it. Saudi Aramco's profits rose by 33% in the second quarter of 2026, as the physical market paid premiums for deliverable crude while Iran's barrels sat idle. But Aramco is simultaneously expanding export capacity, a move that signals low confidence in the near-term return of Iranian supply. The Gulf states are trapped between the arithmetic of reopening and the politics of normalising Iranian coercion.

The market is already pricing in optimism it cannot yet justify. Brent crude fell to a three-week low on August 3rd, briefly dipping below $80, before bouncing back above $83 on August 7th as Iran's vessel ban and fee demands reasserted themselves. The paper market is front-running a resolution. The physical market tells a different story: Protection and Indemnity insurance clubs have suspended coverage for the strait after mine strikes in July; no tankers have transited freely; the draft is unsigned and unacknowledged by Iran's Supreme National Security Council; the US naval blockade remains in place. Even if all parties sign, physical normalisation - reloading, transit, delivery - takes weeks, not hours.

The deeper problem, beyond any single agreement, is structural. Any deal that lets Iran collect fees and exclude American vessels establishes a precedent that other chokepoint states - Russia in the Bosphorus, Venezuela at Cape ESP, Malaysia and Indonesia in the Strait of Malacca - would have incentive to copy. Secretary of State Marco Rubio warned in Manila on July 22nd that this would set a "dangerous precedent". He is right. International shipping runs on the assumption that straits are commons, not toll-booths. Once that assumption cracks, the cost of global trade rises permanently.

Yet the alternative - keeping the strait closed through the autumn - is economically worse. The Dallas Federal Reserve projected that a one-quarter closure would raise US headline inflation by 0.6 percentage points. The OECD already forecasts American inflation at 4.2% for 2026. With the Houthis simultaneously disrupting the Red Sea route to Saudi Arabia, the global shipping network is running on two compromised legs. The longer the blockade continues, the more entrenched the disruption becomes, and the harder it is to reverse.

The better answer is not to accept Iran's terms. It is to offer a narrowly defined interim arrangement that opens the strait without legitimising permanent Iranian control. A 60-day transit window with no fees, no vessel bans, and navigation oversight administered by the International Maritime Organisation - not Tehran - would restore flow without embedding a coercive precedent. The United States would need to grant limited sanctions exemptions so that shipping companies can legally coordinate with any remaining Iranian port authorities. That is a political cost, but it is less than the economic cost of another quarter of disruption. Iran, for its part, needs a lifeline to its economy that does not require it to accept American military conditions it cannot meet.

The danger is not that the deal will collapse entirely. It is that the deal will succeed on Iran's terms. A framework that bans American ships, charges transit fees and gives Tehran a veto over navigation does not end the war.It turns the Strait of Hormuz into a permanent instrument of Iranian leverage, with a price tag the world pays every time a tanker passes through.

Both sides have reason to pretend they are close. Neither side can afford to walk away. The test is whether the text of the agreement reflects the arithmetic of exhaustion or the ambitions of a victor. Iran is not one. The United States should not negotiate as if it were conceding to one.