US issues 24-hour shipping ultimatum to Iran

The US gave Iran 24 hours to publicly renounce attacks on commercial shipping in the Strait of Hormuz, warning that refusal could restart hostilities (in.gr). The ultimatum followed attacks on three tankers near the strait on July 7 (LA Times). Under international law, merchant vessels hold transit-passage rights through international straits (UNCLOS Part III). But the legal right is no longer enough to make the voyage economical, and the gap between what law permits and what insurers will cover is where European costs are growing.

The People Who Actually Decide Whether Ships Sail

The actors who control whether a tanker transits Hormuz are not foreign ministers. They are war-risk underwriters, P&I clubs (the mutual insurers covering crew, cargo and pollution liability), compliance officers and banks.

After the latest attacks, ship traffic through the strait fell sharply (Gulf News). War-risk underwriters advised some shipowners to pause voyages entirely, pricing cover on 24-to-48-hour windows (Business Standard). Premiums are expected to stay elevated even after partial recovery (Insurance Asia). Inchcape's Middle East advisory described controlled vessel movements, holding areas and mandatory risk assessments (Inchcape Shipping Services). The route is open. It is not normal.

Sanctions add another layer. US-linked firms cannot pay Iranian or IRGC-linked actors for safe passage (OFAC FAQ 1249). Non-US firms still face risk if the payment touches dollars, reinsurers or banks with US exposure (Clyde & Co). A shipowner can hold a legal right of passage, find willing insurers, and still hit a compliance wall.

Europe Pays Through Price, Not Shortage

Europe is not about to run out of gas. The European Commission told the EU Gas Coordination Group it saw no direct winter supply threat (Świat OZE). Germany's energy regulator said Gulf gas played a minor role in German supply (Tagesschau).

But Europe is a price-taker in global energy markets. Gulf disruption has already cut EU LNG imports and left storage below last year's pace (S&P Global). European benchmark gas prices have climbed while storage sits well below the same point last year (money.pl). BNP Paribas argues that Europe's refined-products balance, especially diesel, has grown more import-dependent and exposed to Gulf shocks (BNP Paribas).

The cost does not land evenly. Spain's regulated gas tariff rose in July, mixing Hormuz-driven raw-material costs with a VAT increase (El Español). Poland's LNG terminal capacity offers more buffer. Rotterdam, Europe's largest fuel-receiving port, sits at the end of the same insurance, freight and compliance chain that Hormuz disrupts (Vandaag & Morgen).

Naval Patrols Don't Convince Insurers

UK-French-Omani mine-clearance operations reduce physical risk but leave war-risk surcharges intact (Procurement Institute). The IMO (the UN's shipping regulator) sets routing measures and safety standards but cannot command escorts or compel underwriters to write cover (IMO). Diplomats in Doha can announce progress. Insurers in London price what they see, and they need a sustained incident-free period before they lower premiums.

That is the operating reality. Hormuz is a European energy-price and supply-chain risk, not a supply emergency. The route stays legally open while becoming commercially prohibitive, because underwriters, compliance officers and banks make the call that matters, not the governments insisting the crisis is managed. European capitals still do not publish the data citizens would need to trace a war-risk surcharge in the Gulf into a gas bill in Madrid or diesel prices in Rotterdam.