The International Energy Agency's May Oil Market Report puts numbers on a shock the market has been pricing for ten weeks. Gulf supply is down 14.4 million barrels a day from pre-war levels. Global inventories are drawing at four million barrels a day. North Sea Dated traded in a fifty-dollar range in April alone. The world's largest oil consumers are not waiting for the war to end before adjusting.
The International Energy Agency's May Oil Market Report puts numbers on a shock the market has been pricing for ten weeks. Gulf supply is down 14.4 million barrels a day from pre-war levels. Global inventories are drawing at four million barrels a day. North Sea Dated traded in a fifty-dollar range in April alone. The world's largest oil consumers are not waiting for the war to end before adjusting.
The war began in late February. By mid-April, more than fourteen million barrels a day of Gulf production was shut in — partially because of physical damage, mostly because tankers could not safely leave the Strait. Global oil supply fell by 1.8 mb/d in April alone, to 95.1 mb/d. Cumulative losses since February reach 12.8 mb/d.
The supply-demand gap is significantly smaller. The market was in surplus heading into the crisis, producers outside the Middle East are running hard, and consumers have cut back. But inventories are absorbing the rest — at a record clip.
The Strait of Hormuz is twenty-one nautical miles wide at its narrowest. In any given week before the war, roughly a fifth of the world's seaborne oil passed through it. Saudi Arabia, the UAE, Iraq, Kuwait, Iran and Qatar all loaded primarily — or only — through the Strait.
The closure has worked unevenly. Saudi Arabia retains a Red Sea outlet at Yanbu via the East-West pipeline. The UAE retains an Indian Ocean outlet at Fujairah. Iraq's southern fields and Kuwait have no comparable workaround.
The official table is unrecognisable from a year ago. Saudi Arabia loaded 6.98 mb/d in April — 3.18 mb/d below its agreed target. Kuwait managed 0.57 mb/d against a target of 2.6. Iraq fell to 1.35 against 4.2. The UAE held up better, at 2.44, redirecting volumes to Fujairah.
The headline OPEC-9 figure is 14.33 mb/d, 9.03 below its implied April target. The full OPEC+ group produced 34.13 mb/d, against a stated joint capacity of 48. Most of the missing 14 is not capacity loss; it is loadable barrels that cannot reach a buyer.
What is keeping the price below the panicked spike of mid-April is that someone has been delivering oil anyway.
The Atlantic Basin lifted crude exports by 3.5 mb/d between February and April, almost all of it heading east. The United States, Brazil, Canada, Kazakhstan and Venezuela each posted record monthly export volumes in April. The Americas alone added more than 600 kb/d to the IEA's 2026 supply outlook in this single revision — projected growth now stands at 1.5 mb/d for the year.
The other unexpected contributor is Russia. Repeated drone strikes on its domestic refineries have cut internal product demand and freed up crude for export. The United States temporarily waived sanctions on Russian oil already on the water. The effect is a Russian export figure that is, for the first time in three years, rising rather than falling.
The other half of the rebalancing is happening on the demand side, and it is happening fast.
Chinese seaborne crude imports fell by 3.6 mb/d between February and April, according to Kpler — the largest two-month drop on record outside the pandemic. Japan lost 1.9 mb/d of imports, South Korea 1 mb/d, India 760 kb/d. Refiners stopped buying not because they had stopped consuming, but because the cargoes were not arriving.
The slowdown bought time in the crude market. Now the tightness is moving downstream into product markets.
Refinery crude throughput is forecast to fall by 4.5 mb/d in 2Q26 to 78.7 mb/d — a level not seen since the pandemic. For the full year, runs are expected at 82.3 mb/d, 1.6 below the pre-war path.
The drop is not voluntary. Refineries in Asia are short of crude. Refineries in the Middle East have suffered direct damage. The ones still running are minting money: middle distillate cracks are at record highs, gasoline cracks not far behind. The trade press is using the word "shortage" about products, not just crude.
For the first time since the IEA began publishing monthly inventory data in 1988, global observed stocks have drawn by more than 100 million barrels in two consecutive months.
March: -129 mb. April (preliminary): -117 mb. Together: -246 mb in eight weeks. On-land stocks fell faster than that — down 170 mb in April alone, or 5.7 mb/d — while oil on water rebounded by 53 mb as cargoes accumulated mid-voyage. The OECD took most of the on-land hit, drawing 146 mb in April.
At this pace, the buffer that absorbed the first ten weeks of the war is gone before the peak summer driving season starts.
The IEA's central case assumes a negotiated reopening of the Strait of Hormuz that allows Gulf flows to gradually resume from the third quarter. On that path, 2026 supply still averages 3.9 mb/d below 2025 — at 102.2 mb/d — and the market remains in deficit until the final quarter of the year.
Each of those assumptions can move. A faster reopening pulls the deficit forward. A longer closure tests inventory buffers that have already drawn at a record pace. Demand swings back to growth only if the Strait reopens and prices fall meaningfully from current levels. None of that is in the IEA's hands.
A supply shock of this magnitude usually breaks something. So far, it has broken demand — by enough to keep the price in the low triple digits rather than the high triple digits. The Atlantic Basin has produced its way into a structurally larger share of the global crude trade. Russia has accidentally become a marginal stabiliser. China has run down its own crude stocks at a rate it has never previously sustained.
What it has not done is wait. The IEA's May report is the first one in which the post-shock map of the oil market is visible all at once. The Strait will eventually reopen. The rebalancing has already happened.
Figures are drawn from the International Energy Agency's Oil Market Report, May 2026 edition, published 13 May 2026 at iea.org. Inventory and trade-flow data refer to IEA's own series; Chinese seaborne crude import data is from Kpler as cited in the report. OPEC+ production figures are from the report's Table 4 ("OPEC+ crude oil production") with sustainable-capacity references as defined therein.
Price quotes refer to North Sea Dated, ICE Brent and NYMEX WTI futures as reported by the IEA's price desk. The pre-war baseline is the IEA's January 2026 Oil Market Report projection. The supply-loss accounting compares April 2026 Gulf output to the IEA's January 2026 reference path for the same producers.
This is an editorial framing of a published dataset. Figures are reproduced as cited; the framing of what the report implies is the author's.