Key Takeaways:
U.S. commercial crude stockpiles rose by 17.4 million barrels to 424.4 million in the week ended Aug. 7, defying analyst expectations for a 600,000-barrel decline, as imports surged and exports fell.
"I'm not worried about the stability of the reserve or our ability to do another drawdown, if we needed to," David Goldwyn, former State Department special envoy for international energy affairs under President Barack Obama, told CNBC.
The build pushed commercial inventories to about 2 percent below the five-year seasonal average, the EIA said. Crude imports rose 1.1 million barrels a day to 7.3 million barrels a day, while exports fell 627,000 barrels a day to 3.1 million barrels a day. Production held steady at 13.8 million barrels a day, and refinery utilization slipped to 96.2 percent from 96.5 percent.
The unexpected build is bearish for WTI and Brent crude prices, which have been supported by the Iran war's disruption of shipping through the Strait of Hormuz. But the SPR's slide to 298.7 million barrels — the lowest since January 1983 — raises longer-term supply security questions as the reserve's aging infrastructure limits its operational capability.
The SPR fell by 6.1 million barrels last week as the Department of Energy continued emergency releases ordered by President Donald Trump in March, when he authorized the drawdown of up to 172 million barrels after Iran choked off oil exports through the Strait of Hormuz. The reserve stood at about 415 million barrels before the U.S. and Israel attacked Iran on Feb. 28, and government stocks will fall to around 243 million barrels when the release is completed.
The SPR, created in 1975 with an authorized storage capacity of 714 million barrels, has been drawn down repeatedly in recent years. President Joe Biden released 180 million barrels in 2022 after Russia invaded Ukraine — the largest drawdown in the reserve's history — cutting inventories from about 600 million barrels at the start of that year to 375 million by December. The reserve bottomed at roughly 347 million barrels in summer 2023 before gradually refilling to 400 million by May 2025.
The Government Accountability Office warned in a May report that the SPR's operational capability is at risk because of aging infrastructure. More than a quarter of its inventory was "not available for drawdown due to a combination of construction outages and cavern outages" as of December 2025, GAO investigators found — implying a minimum of 103 million barrels in the reserve today are unavailable for use, according to a July analysis by Rapidan Energy.
"The SPR's drawdown, distribution and fill capabilities are currently limited and are at risk going forward due to longstanding issues with aging infrastructure compounded with ongoing major construction intended to address them," the GAO warned.
Gasoline inventories fell 1 million barrels to 208.7 million barrels, about 6 percent below the five-year average, while gasoline demand slipped 67,000 barrels a day to 9 million barrels a day. Distillate stocks edged down 10,000 barrels to 107.1 million barrels, about 12 percent below the seasonal average. Stocks at Cushing, Oklahoma, the Nymex delivery hub, rose 1.6 million barrels to 22.6 million barrels.
The combination of a large commercial build and a shrinking emergency reserve creates a two-sided risk for energy markets. If the Iran conflict escalates further, the U.S. has limited strategic buffer to cushion supply disruptions — the minimum safe operating level for the SPR is about 70 million barrels, an Energy Department spokesperson said in July. Conversely, the commercial build suggests near-term supply is ample, which could pressure crude prices and energy equities in the coming sessions.
This article is for informational purposes only and does not constitute investment advice.
