Aramco and ADNOC resume oil shipments through Strait of Hormuz

Two of the world’s largest oil producers quietly reopened a route the world had written off. Aramco Trading and ADNOC successfully moved cargoes through the Strait of Hormuz, the chokepoint that has been functionally closed since late February after U.S. and Israeli strikes on Iran. The passage carries roughly 20 percent of global oil and LNG. Yet the very markets watching this drama now assign only a 40 percent chance that Donald Trump will formally announce the blockade’s end by May 31, unchanged from before the ships sailed.

This contradiction reveals more about political theater than physical reality. The successful transits suggest the blockade is already easing in practice, consistent with what analysts call a partial reopening. Insurance markets, shipping companies, and Gulf exporters appear to be testing the waters faster than Washington is willing to declare victory. Alternative export routes have failed to make up the lost capacity, making every tanker that slips through Hormuz a direct pressure release on global supply.

Prediction markets captured the shift immediately. The probability of 20 ships transiting by May 31 fell from 76 percent to 68 percent in 24 hours, even as the news landed as “high-impact” for that contract. The Trump announcement market, sitting at $129,000 in volume, refused to budge. Traders evidently believe de facto passage and official declaration are two different things. The Bab el-Mandeb Strait market, meanwhile, barely flickered, its effective closure probability dropped only 3.3 cents to 4.9 percent, underscoring how disconnected these chokepoints remain in the eyes of speculators.