Middle East Conflict Severely Restricts Flows Through the Strait of Hormuz
The International Energy Agency (IEA) has warned that the ongoing conflict in the Middle East has triggered what could become the largest oil supply disruption in the history of global energy markets. According to the agency, shipments through the Strait of Hormuz—one of the world’s most critical oil transit routes—have fallen dramatically, raising serious concerns for global supply and energy prices.
The disruption comes as tensions in the region intensify, threatening a maritime corridor that carries a significant share of the world’s crude exports to markets including Europe, Asia and the United Kingdom.
Oil Shipments Collapse Through Key Global Chokepoint
Roughly 20 million barrels per day of crude oil and refined products typically pass through the Strait of Hormuz, a narrow waterway between the Persian Gulf and the Gulf of Oman. However, the IEA said these flows have now “fallen to a trickle” as the conflict disrupts shipping routes.
With limited alternative export capacity and storage facilities rapidly filling up, Gulf oil producers have been forced to cut production sharply. According to the IEA’s latest monthly Oil Market Report, countries in the region have collectively reduced output by at least 10 million barrels per day.
The agency warned that the disruption could deepen if shipping traffic does not resume soon.
“In the absence of a rapid resumption of shipping flows, supply losses are set to increase,” the report stated.
The Strait of Hormuz has long been considered one of the most strategically important maritime passages for the global energy trade. Any sustained interruption there has the potential to push up fuel prices worldwide, including in major importing regions such as the UK and the European Union.
Record Emergency Release of Strategic Oil Reserves
In response to the crisis, the IEA announced on Wednesday the largest coordinated emergency release of strategic oil reserves since the organisation was founded during the 1970s energy crisis.
Member countries have agreed to release a combined 400 million barrels of oil from emergency stockpiles in an effort to stabilise supply and calm markets.
The scale of the release highlights the seriousness of the disruption. Strategic reserves are typically deployed only during severe supply shocks, such as wars or major geopolitical crises.
Just a week earlier, IEA Executive Director Fatih Birol had downplayed concerns about shortages, saying the global market remained well supplied.
“There is plenty of oil, we have no oil shortage,” Birol said at the time.
He also noted that there had been “a huge surplus in the market”. However, the rapid escalation of the Middle East conflict has significantly altered the outlook within days.
Global Oil Supply Expected to Drop Sharply
The IEA now expects global oil supply to fall by around 8 million barrels per day in March as the effects of the disruption spread through the market.
Production losses in the Middle East are expected to account for the majority of the decline. However, the agency said the impact will be partially offset by increased output from several non-OPEC+ producers, including Kazakhstan and Russia.
Even so, the scale of the disruption remains substantial and could put upward pressure on global oil prices if the conflict continues.
Energy markets in Europe, including the UK, remain particularly sensitive to such shocks following recent years of volatility linked to geopolitical tensions and shifting global supply patterns.
Emergency Measures May Only Offer Short-Term Relief
While the coordinated release of strategic reserves provides temporary relief, the IEA cautioned that it cannot fully compensate for a prolonged disruption to supplies.
“The coordinated emergency stock release provides a significant and welcome buffer, but in the absence of a swift resolution to the conflict, it remains a stop-gap measure,” the agency said.
The ultimate consequences for oil and gas markets—and the wider global economy—will depend largely on how long shipping through the Strait of Hormuz remains disrupted.
The agency noted that several factors will determine the severity of the impact, including the scale of military activity in the region, potential damage to energy infrastructure and the duration of the shipping disruption.
Outlook for Energy Markets
For now, the IEA emphasises that the situation remains highly uncertain. A rapid reopening of shipping lanes could quickly stabilise the market, but a prolonged interruption would likely deepen supply shortages and intensify pressure on global energy prices.
With the Strait of Hormuz acting as a vital artery for the global oil trade, developments in the region will remain closely watched by governments, energy companies and financial markets in the weeks ahead.
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