Hormuz Strait closure lifts oil prices, threatens inflation

The Strait of Hormuz, one of the world's most critical oil chokepoints, has become effectively closed as US-Iran peace talks collapse. President Trump rejected Tehran's latest ceasefire offer on May 11, prolonging the deadlock. Global oil markets are losing an estimated 100 million barrels per week, making this the largest oil supply shock since World War II. WTI crude has climbed near $86, lifting commodity shipping rates and feeding through to consumer prices.

Wall Street is responding by pushing back Fed rate-cut expectations. Goldman Sachs moved its first cut forecast to December 2026 from June, citing elevated energy prices keeping inflationThe rate at which prices rise across an economy. elevated. Bank of America followed suit, joining a growing cohort delaying their cut calls. The dynamic is compressing long-durationBond price sensitivity to interest rate changes. tech valuations even as earnings remain solid. S&P 500 continues to track all-time highs, but momentumThe empirical fact that winners keep winning over the medium term. faces headwinds from inflation uncertainty and the possibility of extended Strait closure.

Energy importers face immediate margin pressure; refiners like Marathon Petroleum are receiving barrels from US Strategic Petroleum Reserve releases, but that relief is temporary. Oil tankers are routing around Africa, adding weeks to voyage times. The US has already awarded 53.3 million barrels to traders and refiners including Trafigura. Norden, a major commodity shipping company, is planning for a scenario in which the Strait remains shut for the rest of the year. Airlines are squeezed by jet fuel costs; Deutsche Bank predicts a new wave of M&A among low-cost carriers.

Sceptics note that oil demand has not collapsed in Europe despite high prices, and the US has options to release more strategic reserves. China's central bank warned of imported inflationThe rate at which prices rise across an economy. risk, signalling Beijing may struggle with stagflation dynamics if crude stays elevated. The real test comes if Hormuz closure extends beyond a few weeks; markets are currently pricing in near-term normalization, not prolonged shock.