How a Jet Fuel Supply Crunch Threatens Summer Flights

The Iran war has squeezed global supplies of jet fuel, threatening to upend vacation plans as the peak summer travel season approaches in the Northern Hemisphere.

The near-halt of shipping through the Strait of Hormuz has disrupted oil exports from the Persian Gulf, forcing refineries elsewhere to cut production of jet fuel and its base ingredient kerosene. Compounding the problem, refiners in the Middle East, where more than 10% of the world’s jet fuel and kerosene is typically produced, have struggled to deliver cargoes to buyers outside the region.