IEA warns of record oil shock as Middle East war rattles global markets

By Tahani Elghazaly
Published March 15, 2026

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Global energy markets have entered a period of severe volatility after the International Energy Agency warned that the war in the Middle East has triggered what it described as the largest oil supply shock ever recorded, with global supplies expected to fall by around 8 million barrels per day in March, or nearly 8% of world demand. The drop comes amid major disruption to transit through the Strait of Hormuz, placing the market under unprecedented pressure at an especially sensitive moment.

The impact of the crisis is no longer limited to production levels alone. It is feeding directly into prices, transportation costs, supply chains and inflation pressures across a wide range of economies. According to Reuters, the IEA approved a record release of 400 million barrels from strategic reserves in an effort to contain the shock and calm the market, while Brent crude, after surging to $119.50 earlier in the week, ended trading still above the $100 mark.

The significance of this development lies in the fact that it no longer appears to be a short-lived disruption. Instead, it is opening the door to broader shifts in the global energy balance if the crisis continues. Major financial institutions have already started revising their outlooks, with Barclays raising its 2026 Brent forecast on the expectation that supply disruptions through Hormuz may continue and keep the market under pressure for additional weeks.

As a result, the crisis is no longer just about higher oil prices. Its effects have expanded to government planning, business costs and household pressures, while the market remains vulnerable to renewed instability if escalation spreads further across shipping lanes or oil infrastructure.