Why It Matters
Global oil inventories are depleting at an accelerating rate following supply disruptions in the Middle East, and energy analysts warn the situation could trigger severe fuel price spikes or a broader economic contraction if the Strait of Hormuz remains closed into the summer. The warning carries direct consequences for American consumers and businesses heading into peak summer driving season.
What Happened
The International Energy Agency issued a warning in its latest monthly update that rapidly shrinking inventory buffers could foreshadow future price spikes if supply disruptions through the Strait of Hormuz continue. The IEA said the current drawdown in commercial and strategic stockpiles has so far softened the market impact of the disruption, but that cushion is narrowing.
Exxon Mobil CEO Darren Woods addressed the issue directly on the company’s first-quarter earnings call, noting that while stored supplies in commercial inventories, government strategic reserves, and tankers at sea have absorbed much of the shock, those buffers will eventually reach a floor. “We anticipate as that happens and the strait remains closed, that we will continue to see increased prices in the marketplace,” Woods said.
By the Numbers
At the end of February, global oil stockpiles stood at just over 8 billion barrels — near a decade-high level, according to estimates from Swiss bank UBS. By the end of April, that figure had fallen to approximately 7.8 billion barrels. UBS analysts projected inventories could approach 7.6 billion barrels by the end of May if demand holds steady month-over-month — a level analysts at JPMorgan described as stress-inducing for global supply chains.
JPMorgan analysts cautioned that despite the large headline figure, only around 800 million barrels are truly available for flexible use. The remainder is required to keep pipelines, storage tanks, and distribution networks operating at minimum functional levels.
If the Strait of Hormuz remains closed through September, JPMorgan projected inventories could fall to a critically low threshold of 6.8 billion barrels. Forecasters at energy advisory firm Rapidan Energy estimated that refined product inventories could reach critical levels even sooner — potentially by July or August.
How Analysts Are Framing the Risk
JPMorgan’s head of global commodities strategy, Natasha Kaneva, offered a pointed analogy: “Like blood pressure in the human body, the issue is circulation. The system does not fail because oil disappears, it fails because the circulation network no longer has enough working volume.”
Rapidan Energy analysts struck an even sharper tone, warning in a May note that a worst-case scenario would see the global economy effectively seize up, with transportation infrastructure unable to source fuel regardless of price. That scenario, they said, would likely trigger a severe economic contraction — and could arrive before the third quarter of 2026.
However, the same analysts cautioned that inventories are unlikely to actually reach those critical lows. More probable, they said, is a sharp spike in oil and fuel prices that curtails demand before stockpiles fully collapse — a mechanism that would itself carry significant economic consequences.
Zoom Out
The Strait of Hormuz is one of the world’s most strategically critical energy chokepoints, with a substantial share of global seaborne oil and liquefied natural gas passing through it daily. Disruptions there ripple quickly through global markets, affecting refinery input costs, fuel prices at the pump, and freight expenses across virtually every sector of the economy.
The supply crunch adds pressure to energy markets already navigating a complex environment. Domestic U.S. grid operators have flagged concerns about supply reliability amid price volatility, while the current administration has pursued an aggressive domestic energy production posture partly intended to provide insulation against exactly these kinds of external shocks.
What’s Next
Energy analysts and market participants will be watching May inventory data closely as a near-term indicator of whether the drawdown is accelerating. The IEA is expected to continue issuing monthly updates, and market forecasters say a resolution — or further deterioration — of the Hormuz situation will likely determine whether summer fuel prices rise sharply or stabilize. Government strategic reserve decisions in the United States and other major consuming nations may also come into focus if commercial inventories continue their decline.