US crude inventories have dropped to their lowest level in more than two decades, according to the Energy Information Administration.
For the week ending May 29, 2026, commercial crude stocks fell by roughly 8 million barrels to 434 million barrels, roughly 3% below the five-year average. Combined with the Strategic Petroleum Reserve, total reserves are now critically low.
What's Driving the Drawdown
The weekly decline is part of a multi-week trend driven by surging US exports and declining imports, exacerbated by a prolonged conflict involving Iran that has disrupted Middle East supply chains. The SPR is being used in coordinated international efforts to prevent oil prices from spiking.
At the Cushing, Oklahoma hub, inventory has fallen to 22.4 million barrels, approaching recent lows.
Why This Drawdown Is Different
The SPR, historically a buffer against emergencies, has been significantly drained, meaning the safety net is thinner as commercial supplies dry up. With US exports helping allies, domestic inventories may not recover without a shift in production or geopolitics.
What This Means for Investors
Tightening supply typically pushes prices higher. The 434 million barrel benchmark is key-if it falls further without a production or import increase, price volatility could spike sharply, with less government firepower available to stabilize markets.