UK warship intercepts fast boats near tanker in Strait of Hormuz, sparking oil market turmoil

The British Ministry of Defence confirmed that the Royal Navy frigate HMS Montrose intervened after fast boats approached a UK‑flagged tanker in the Strait of Hormuz, warning the vessels away without shots fired or injuries. The incident, which the UK described as illegal interference, was denied by regional forces, heightening already fragile diplomatic ties.

The flare‑up follows a broader escalation in the Persian Gulf, with the United States and Iran resuming hostilities that have disrupted shipping through the narrow waterway. Analysts note that the strait handles about one‑fifth of global oil flow, and recent disruptions have cut daily through‑traffic from roughly 12.5 million to 5.1 million barrels, while refined product exports have also slumped.

Higher crude prices are feeding inflation worldwide. In Brazil, experts link rising oil‑derived commodity costs to persistent price pressure on diesel and gasoline. European fuel markets are seeing sharp climbs; Portugal reported gasoline and diesel price increases of up to 4.3 % and 9.7 % respectively, reflecting higher Brent levels and added freight and risk premiums. The International Energy Agency warned that reduced sulfur‑acid supplies—stemming from the strait’s closure and a Chinese export ban—threaten copper production, adding another layer of industrial strain.

Financial institutions such as JPMorgan project continued volatility, with Brent hovering near US$86 per barrel and global fuel supplies remaining tight.