
Global oil demand growth is losing momentum, with the International Energy Agency (IEA) projecting the weakest annual gain since 2019. At the same time, supply is expanding rapidly, setting the stage for a record surplus next year, with stock builds expected to outpace even the average accumulation seen during the 2020 pandemic, according to IEA.
Oil demand
Global demand growth for 2025 has been revised down multiple times this year, with a cumulative reduction of 350,000 b/d. Current projections call for increases of around 680,000 b/d for 2025 and 700,000 b/d in 2026.
Despite weaker-than-expected consumption in China, India, and Brazil in recent months, annual growth of 600,000 b/d in second-quarter 2025 occurred entirely in non-OECD countries. Consumption in the OECD was flat, with Japan’s demand sinking to multi-decade lows.
Oil supply
On the supply side, global oil output in July held steady at 105.6 million b/d, as a 230,000 b/d drop in OPEC+ production was offset by an equivalent increase in non-OPEC+ volumes. New higher OPEC+ targets set for September are expected to lift global supply growth to 2.5 million b/d in 2025 and 1.9 million b/d in 2026. Of that growth, non-OPEC+ producers will account for 1.3 million b/d and 1 million b/d, respectively.
Additional sanctions could yet curb output from the world’s third- and fifth-largest producers—Russia and Iran. At end-July, the US Department of the Treasury announced its most significant Iran-related sanctions since 2018, aimed at making it harder for Tehran to sell its oil. Washington is also pressing major buyers of Russian crude, particularly India, to scale back purchases.