The International Energy Agency just dropped its June Oil Market Report, and the numbers are ugly. Global oil demand is now expected to fall by 1.1 million barrels per day year-on-year in 2026, a figure that represents a 700,000 barrel-per-day downgrade from what the agency projected just one month earlier.
The culprit is straightforward: the Iran war that erupted on February 28, 2026, has thrown a wrench into global energy supply chains with a severity that few models anticipated.
The numbers tell a brutal story
Oil deliveries cratered by 5 million barrels per day year-on-year during the second quarter of 2026. The IEA now projects total oil supply will fall by 3.9 mb/d to 102.4 mb/d for 2026 before what the agency expects will be a rebound and oversupply scenario in 2027.
The demand destruction hasn’t been evenly distributed. Petrochemical and aviation sectors have absorbed the worst of the blow, particularly across the Middle East and Asia-Pacific regions. Higher fuel prices and product availability issues have forced entire segments of these industries to scale back operations.
