SPR Hits 43-Year Low as US Commercial Oil Stocks Tighten
US crude and gasoline inventories fell for another week while the Strategic Petroleum Reserve dropped to a 43-year low, tightening physical supplies and underpinning a geopolitical rally in oil prices.
US crude oil inventories fell by 564,000 barrels in the week ending July 10, according to the American Petroleum Institute. The drop follows a 399,000-barrel decline the previous week and reinforces a prolonged tightening trend. Over the past twelve weeks, commercial crude stockpiles excluding the Strategic Petroleum Reserve have plummeted by more than 60 million barrels.
However, the headline year-to-date draw for total US crude inventories is a much milder 9.2 million barrels. This discrepancy is entirely driven by the federal government's continued liquidation of the Strategic Petroleum Reserve. The SPR shed another 2.99 million barrels last week, dragging its total down to 316.5 million barrels. This marks the lowest level in over 43 years, slipping beneath the depths reached during the Biden administration’s historic 2023 sell-off.
The reserve is now 415 million barrels shy of its maximum capacity and is rapidly approaching a critical operational floor. The generally accepted minimum for the SPR is between 250 million and 300 million barrels. Dropping below that range would threaten the reserve's ability to physically pump and process oil efficiently, removing a key structural backstop from the global supply chain.
Downstream markets are reflecting similar supply constraints. Gasoline inventories fell by 1.664 million barrels, adding to a 2.929-million-barrel draw the prior week that left stockpiles 6% below the five-year average for this time of year. Distillate inventories posted a 2.3-million-barrel rebound after a prior drop, but they remain deeply depressed at 12% below the five-year average.
US drillers are responding to the pricing signals generated by these draws. Production for the week ending July 3 rose to 13.86 million barrels per day, an increase of 50,000 bpd from the prior week and a robust 475,000 bpd surge compared to a year ago. At the WTI delivery hub in Cushing, Oklahoma, inventories rose by 238,000 barrels, offering a brief reprieve after a 69,000-barrel draw.
This tightening physical backdrop is amplifying the market's reaction to geopolitical shocks. Brent crude settled up 2.24% at $85.17 a barrel on Tuesday afternoon, while WTI climbed 1.92% to $79.64. The gains were catalyzed by escalating tensions between the United States and Iran, a risk premium layered on top of an already heavily drawn commercial inventory complex.
