IEA to Release Over 400 Million Barrels from Emergency Oil Reserves to Stabilize Global Markets

Why This Release Matters Now

The decision comes as the Middle East conflict triggers the largest oil supply disruption in modern history, with crude and product flows through the strategic Strait of Hormuz severely curtailed since February 28.

With global supply expected to drop by about 8 million barrels per day in March and Gulf producers shutting in at least 10 million barrels per day of output, the IEA’s move is designed to act as a shock absorber for a market under extreme stress.

Brent prices have already swung sharply since the conflict escalated, briefly approaching 120 dollars per barrel before easing back as policymakers signaled readiness to tap emergency reserves.

The agency’s release aims to prevent a temporary supply shock from morphing into a broader economic crisis, particularly for fuel-importing economies already grappling with inflation and slower growth.

For a deeper dive into the scale of the disruption, see World faces largest-ever oil supply disruption on Middle East war, IEA says .

How the 400 Million Barrels Will Hit the Market

IEA member governments and industry have jointly pledged more than 400 million barrels from a mix of state-controlled and compulsory stocks, making this the largest coordinated stock release on record.

Governments will supply 271.7 million barrels from strategic reserves, while companies will contribute 116.6 million barrels from compulsory stocks, alongside a further 23.6 million barrels from other sources such as optional inventories and flexibly held stocks.

The rollout is phased: barrels held by members in Asia and Oceania are slated to reach the market first, with additional volumes from Europe and the Americas arriving by the end of March as logistics and allocation schedules are finalized.

Roughly 72 percent of the release will be crude oil, with the remaining share made up of refined products such as diesel, gasoline and jet fuel, targeting not only upstream shortages but also tightness in product markets as regional refining capacity is disrupted.

Who Is Contributing the Most?

The Americas are providing the single largest portion of the release, pledging 195.8 million barrels in total, including 172.2 million barrels drawn directly from government-controlled strategic reserves.

Asian and Oceania members have committed 108.6 million barrels, reflecting both their heavy reliance on Middle Eastern flows and their need to cushion refining systems against feedstock shortages and shipping delays.

European countries will add 107.5 million barrels, helping to stabilize Atlantic Basin balances and offset disruptions in long-haul crude and product trade lanes that normally transit the Strait of Hormuz.

Regional Contribution Snapshot

Strategic vs. Compulsory Stocks – What’s the Difference?

Strategic reserves are government-owned emergency stocks created to respond to major supply disruptions or extreme price spikes, typically managed by energy ministries or dedicated agencies.[

Compulsory stocks, by contrast, are inventories that refiners, importers and other private companies are legally required to hold under national regulations, often equivalent to a set number of days of net imports.

In practice, strategic barrels give governments direct intervention capacity, while compulsory barrels provide an additional buffer embedded in the commercial system that can be mobilized through regulatory adjustments.

Strait of Hormuz: The Chokepoint Behind the Decision

The IEA’s move follows severe disruptions to energy flows through the Strait of Hormuz, the world’s most critical oil transit chokepoint, after the Iran conflict escalated on February 28.

Before the crisis, nearly 20 million barrels per day of crude and refined products transited the narrow waterway; the conflict has pushed shipments down to minimal levels and forced Gulf producers to shut in production and scramble for alternative routes.[

With more than 3 million barrels per day of regional refining capacity offline due to attacks and export bottlenecks, the pressure on product markets has intensified, making refined product releases from emergency stocks particularly important for diesel- and jet-dependent economies.

For further context on how the war is reshaping flows and refinery operations, read Middle East Conflict Triggers Historic Oil Supply Disruption, Prices Surge: IEA Report .

What It Means for Prices and Demand

The IEA expects its record stock release to help cap the most extreme price spikes, but it also warns that higher prices and weaker macroeconomic conditions are already weighing on global demand growth.

In its recent outlook, the agency projected that world oil demand in 2026 will grow by about 640,000 to 850,000 barrels per day, slower than earlier estimates and well below OPEC’s more optimistic projections.

At the same time, global supply is still forecast to rise faster than demand for the year as a whole, driven mainly by non-OPEC+ producers, even after the Middle East shock and the temporary production cuts across Gulf exporters.

For a focused look at how prices and demand are interacting in this environment, see Global oil demand to rise more slowly as prices rally, IEA says .

Policy Signal: “Markets Are in a Critical Period”

IEA Executive Director Fatih Birol has described the current environment as an “extremely critical period” for energy markets and said the decision to release 400 million barrels has already had a strong impact on sentiment.

The agency has not specified the precise daily release rate, allowing flexibility to adjust the flow of barrels depending on how quickly shipping through the Strait of Hormuz resumes and how prices react.

Policymakers are effectively signaling that they are prepared to use the full scale of their emergency tools—strategic stocks, coordinated releases and regulatory levers—to prevent a short-term geopolitical shock from turning into a sustained supply crisis.

For more on the build-up to this decision, including earlier G7 discussions on tapping reserves, you can also read G7 Weighs Emergency Oil Reserve Release as Brent crude Prices Surge Amid Iran Conflict .