Global 2026 oil supply shortfall to deepen as Hormuz reopening remains elusive, IEA says

Global oil supply will fall by 4.3 million barrels per day, ‌or around 4%, this year, the International Energy Agency said, as renewed hostilities in the Middle East disrupt supplies and plunge the world deeper into an oil-market deficit
Reuters Wednesday, 12 August 2026

Global oil supply will fall by 4.3 million barrels per day, ‌or around 4%, this year, the International Energy Agency said, as renewed hostilities in the Middle East disrupt supplies and plunge the world deeper into an oil-market deficit.

The U.S.-Iran ceasefire broke down last month, around a month after the parties signed a memorandum of understanding to end the war. Since then, tanker attacks in the Strait of Hormuz have resumed, and the ​conflict spread as Yemen's Iran-aligned Houthi rebels launched attacks in the Red Sea.

"Global oil supply has fallen well below demand due to the Strait of ​Hormuz shutdown, the U.S. blockade of Iranian exports, attacks within the Bab el-Mandeb Strait and reduced Kazakh CPC Blend exports," the ⁠IEA, which advises industrialised countries, said in a monthly report, referring also to drone attacks in the Black Sea affecting exports.

This year's expected supply drop compares ​with the 3.7 million bpd forecast in the IEA's July report, and will take total supply to the Paris-based agency's lowest forecast yet for this year at 102.02 ​million bpd.

That would put global supply around 1.27 million bpd below demand this year, widening from an 860,000 bpd deficit implied by the IEA's July forecasts.