World oil supply will rise more rapidly than expected this year and next as OPEC+ members further increase output and supply from outside the group grows, the International Energy Agency said on Wednesday.

OPEC+ producers raised their combined crude oil production in July by less than planned, with Saudi Arabia's supply data showing discrepancies.

OPEC+ has fast-tracked its oil supply reintroduction, adding 2. 2 million barrels per day between April and September 2025 — one of its most aggressive production turnarounds to date. Led by Saudi Arabia and Russia,