Nearly two months after the Strait of Hormuz was effectively sealed by regional conflict, the world is confronting the largest single disruption to energy supplies in modern history.
Nearly one-fifth of the planet’s seaborne oil and a fifth of its liquefied natural gas have been cut off from global markets, according to detailed assessments by the US Energy Information Administration (EIA) and the International Energy Agency (IEA). Before the closure in late February, roughly 20.9mn barrels per day of crude oil, condensate and petroleum products flowed through the narrow waterway — about 20% of all oil traded by sea and 25 percent of global petroleum liquids consumption — the EIA reported for the first half of 2025. An additional 20% of the world’s LNG trade, almost entirely from Qatar, passed through the same chokepoint.
The result has been a net daily loss to world markets of between 16.7mn and 18.2mn barrels of oil equivalent, even after accounting for limited pipeline bypasses, the agencies’ data show. Only 3.5mn to 5.5mn barrels per day of oil can be rerouted via Saudi Arabia’s Petroline and the United Arab Emirates’ Abu Dhabi Crude Oil Pipeline. LNG, which has no meaningful alternative export route in the short term, remains almost entirely stranded.
Converting the lost natural gas volumes to oil-equivalent terms adds another 1.7mn barrels of oil equivalent daily to the shortfall. Taken together, the gross daily disruption before any mitigation reached approximately 21.7mn barrels of oil equivalent. In energy terms, the net loss equates to 37–40 exajoules per year — roughly 5.5% to 6% of total global primary energy consumption.
Minister of State for Energy Affairs, president and CEO of QatarEnergy HE Saad Sherida al-Kaabi delivered some of the starkest warnings in the early days of the crisis. In a Financial Times interview published in early March, he cautioned that the conflict could “bring down the economies of the world.”
He predicted that if the situation persisted, “all exporters in the Gulf region will have to call force majeure,” warning that prolonged fighting would hit global GDP growth, drive energy prices sharply higher, and trigger shortages and factory shutdowns. On the ground, those warnings have materialised. Gulf oil production was shut in by 7.5mn to 9.1mn barrels per day in March and April, according to the IEA’s monthly Oil Market Report. Global oil supply fell by 10.1mon barrels per day in March alone, with cumulative losses now exceeding 360mn to 440mn barrels. Qatar declared force majeure on LNG cargoes after Iranian strikes damaged facilities responsible for about 17% of the country’s LNG export capacity — equivalent to roughly 12.8mn tonnes per year and potentially offline for three to five years.
The disruption dwarfs every previous oil shock. Markets have responded with volatility. Strategic stockpiles in IEA member countries and coordinated releases have cushioned the immediate blow, but analysts warn that sustained losses of this magnitude will force deep demand destruction through higher prices.
Independent economic modeling cited by the IEA projects global GDP losses ranging from $330bn in a short conflict to as much as $2.2tn if the strait remains closed for an extended period.
For now, the world is adapting through higher fuel costs, conservation measures and frantic searches for alternative supplies. Yet with 80% of Hormuz-bound oil traditionally destined for Asia, the pain is being felt most acutely in import-dependent economies from Japan to India.
Energy experts, including al-Kaabi, caution that the full economic and geopolitical fallout is still unfolding. The closure has exposed the fragility of global energy trade in ways few imagined possible in the 21st century.
As one veteran oil-market analyst put it: “We have just witnessed the largest forced reordering of world energy flows since the Suez Canal crisis of 1956 — except this time the stakes are measured in millions of barrels every single day.”
The coming weeks will determine whether the world can absorb the shock or whether the energy crisis of 2026 becomes the defining economic event of the decade.
