Brent Rips 9% After Trump Declares Naval Blockade on the Strait of Hormuz

The Catalyst: Islamabad Collapses, Trump Escalates

Brent was still digesting a 4% selloff on optimism that the Islamabad talks would produce a deal when the whole thing fell apart. VP Vance left Pakistan after 21 hours of negotiations with no agreement — the sticking point was exactly what the oil market cares about most: who controls the Strait of Hormuz. Iran demanded continued sovereignty over the strait; Washington refused.

Within hours of Vance's departure, Trump declared a full naval blockade, announcing the US Navy would prevent all ships from entering or exiting the strait and intercept any vessel that had paid tolls to Iran. This is a direct escalation from the mine clearance operations that US destroyers began on April 11 — the first American warships to enter Hormuz since the war started. Iran called it a ceasefire violation and threatened to attack the Navy ships.

Brent ripped from the low $89s back above $97 in under 24 hours. The 9.4% move reflects a market that briefly priced in peace and is now repricing for the opposite: not just a closed strait, but an actively contested one.

The Strait Is Still Closed — And Getting Worse

The numbers make the severity clear. The Strait of Hormuz handles roughly 20% of global oil and LNG shipments. Since the US-Israel strikes on Iran began in late February, transit has dropped by more than 90%, removing approximately 10 million barrels per day from normal flow. The April 8 ceasefire was supposed to start reopening traffic, but it hasn't.

Iran's IRGC has been charging tolls exceeding $1 million per tanker in Chinese yuan or crypto to bypass US sanctions. On Saturday, only three VLCCs managed to exit — the Serifos, Cospearl Lake, and He Rong Hai, carrying a combined 6 million barrels. That is roughly 10% of pre-war daily flow, in a single batch. Hundreds of tankers remain stuck in the Gulf. Abu Dhabi National Oil Company's CEO stated plainly: "the Strait of Hormuz is not open."

Saudi Arabia has reported that attacks on its facilities reduced production capacity by 600,000 bpd and cut East-West Pipeline throughput by 700,000 bpd. The physical market is even tighter than futures suggest — North Sea Forties Blend reportedly hit $147/bbl as refiners scrambled for non-Gulf barrels.

Bears Have a Case, But Timing Is Against Them

The counterarguments exist. US crude inventories rose 3.1 million barrels to 464.7 million — a near three-year high — showing that the SPR drawdowns and non-OPEC supply are partially offsetting Gulf disruptions. Goldman Sachs cut its Q2 Brent target from $99 to $90 after the ceasefire, betting that diplomacy would reopen flow.

But Goldman's thesis assumed progress that didn't materialize. The blockade announcement changes the calculus entirely. Instead of a gradual reopening, the market now faces a US Navy actively interdicting traffic and Iran threatening military response to any warships in the strait. Reports suggest Iran has lost track of mines it planted in the waterway, meaning even a deal tomorrow wouldn't immediately restore safe passage.

Two supertankers U-turned in the strait after the talks broke down — a real-time signal that commercial shipping is not willing to bet on the ceasefire holding. As long as the strait stays contested, every barrel that doesn't flow through Hormuz is a barrel someone else has to find.

Trading on Hyperliquid

Trade BRENTOIL on Hyperliquid with up to 20x leverage.