Diesel Supply Is Projected to Fall Short in the Fourth Quarter and Stay Tight Into 2027

Global diesel supply is projected to fall short of demand in the fourth quarter of 2026, keeping markets tight into 2027 even if refinery output rebounds quickly by year-end. Inventory rebuilding beyond normal seasonal changes is unlikely before the second half of 2027.

Stocks fell more than usual in the second quarter, then continued to decline in the third quarter despite the usual seasonal pattern. Prolonged disruptions to Middle Eastern and Russian exports contributed to the drawdowns, leaving less fuel in reserve ahead of peak winter demand. Broader inventory rebuilding is unlikely before the second half of 2027, even if stocks move seasonally.

A recovery in Middle Eastern refined-product supply is central to easing the tightness. If those supplies do not return, further demand reductions may be needed to balance the market, with heavy economic costs.

Higher fuel prices could weigh on transport, agriculture and industrial activity and add to inflation. U.S. diesel prices topped $6.50 a gallon last month.

On Oct. 11, the International Energy Agency (IEA) asked members with outstanding pledges from the March 2026 emergency stock release to accelerate deliveries, prioritizing diesel. About 325 million barrels had been released by Oct. 7, and completing the remaining pledges could add about 100 million barrels to the market. The March emergency release remains underway.