IEA says global diesel supplies will remain low through 2027

A Global Fuel Squeeze Through 2027

Global diesel supplies will remain low well into 2027, according to the International Energy Agency’s (IEA) October Oil Market Report. With winter demand approaching, the market faces a precarious inventory deficit exacerbated by ongoing disruptions across the Middle East and Russia.

Counter-Seasonal Market Contraction

The third quarter of 2026 saw a counter-seasonal tightening of global gasoil markets. Following sharp inventory declines earlier in the year, the IEA warns that supply will likely lag behind demand through the fourth quarter. Even as refinery throughput begins to recover, analysts do not expect meaningful inventory replenishment until the second half of 2027. In the second quarter of 2026, demand dropped by 1.1 mb/d to 28.5 mb/d, with Europe and China driving the majority of that decline, followed by a further contraction of 750 kb/d in the third quarter. OECD gasoil stocks fell to 565 mb in July, a 5% decrease from levels seen before the conflict and the lowest point since November 2023.

The numbers illustrate a stark reality: global diesel exports plummeted by 700,000 barrels per day year-on-year in September. The Iran war has effectively curtailed flows through the Strait of Hormuz, while Ukrainian strikes on Russian refineries have crippled output in one of the world’s primary fuel-exporting nations. Russian oil production reached 8.43 million barrels per day in September, an increase of 65,000 barrels per day from August, yet this remains 870,000 barrels per day below the previous year’s levels.

Price Records and Demand Elasticity

Wholesale diesel prices hit historic highs in September, eclipsing $200 a barrel in Singapore and surging to approximately $220 per barrel in the United States and Europe.

Still, the IEA projects an overall oil demand contraction of 2.6 million barrels per day for 2026, with diesel responsible for 25% of that decline. Pressure on the market remains intense; Investing.com reported that North Sea Dated crude has jumped 43% since the start of September, trading near $134 following the September 11 bombing of the Saudi East-West Pipeline. The IEA also noted that a 2027 rebound of 2 million barrels per day would still leave global oil use 620,000 barrels per day, or 0.6%, lower than 2025 levels.

Fragile Recovery Amid Regional Conflict

The IEA warns that the outlook remains volatile. Saudi officials confirmed that Houthi forces targeted a Saudi Aramco administrative building in early October, highlighting the vulnerability of critical energy infrastructure. While global supply rose by 2.5 million barrels per day in September, anchored by production gains in Saudi Arabia and the UAE, further escalation could derail any hope of market stabilization. The agency reported that global oil supply reached 102.3 million barrels per day in September, with OPEC+ contributing 2.1 million barrels per day to that growth. Although total oil supply is expected to decline by 5.8 million barrels per day this year before rising by 7.7 million barrels per day in 2027, the IEA cautioned that renewed attacks in the Gulf leave the recovery fragile.

Market Outlook and G7 Response

G7 leaders committed on October 2 to accelerate the delivery of volumes under the IEA Collective Action of March 11, prioritizing the immediate release of diesel stocks. Yet, the path to normalcy is narrow. While the IEA forecasts a surplus in the gasoil/diesel market by the first quarter of 2027, this will not offset the massive deficit accumulated throughout 2026. Without a sustained easing of supply constraints, the agency warns that further demand destruction may be the only mechanism left to balance the market.

More on this story: Oil prices fall as traders assess Russian diesel supply prospects and Saudi-Houthi conflict · Russia Says Diesel Exports Could Exceed 3 Million Tons Monthly under Trump Deal