The United States Strategic Petroleum Reserve (SPR) has reached its lowest level since March 1983, with its inventory plummeting to approximately 311 million barrels. This significant reduction marks a substantial decline over the past five years, prompting concerns about the nation's energy security buffer. Financial commentator Charlie Bilello highlighted the drastic reduction in a recent social media post, stating, > "The US Strategic Petroleum Reserve is now at its lowest level since March 1983. Over the past 5 years we've seen a drawdown of 310 million barrels, a 50% decline."
As of July 17, 2026, the SPR's inventory stood at 311.4 million barrels, representing just 43.6% of its 714 million barrel capacity, according to data from the U.S. Energy Information Administration (EIA). The reported 310 million barrel drawdown over five years underscores the rapid depletion of the emergency oil stockpile, which was established in 1975 following the Arab oil embargo to mitigate future supply disruptions.
A series of major releases have contributed to the current low levels. In 2022, the Biden administration authorized the release of 180 million barrels over six months to combat rising gasoline prices and address market disruptions from the Russia-Ukraine conflict, marking the largest single release in the SPR's history. Drawdowns continued into 2023, resulting in a 45% reduction from January 2021 levels. More recently, on March 11, 2026, U.S. Secretary of Energy Chris Wright announced a further release of 172 million barrels, authorized by the Trump administration, in response to rising oil prices exacerbated by a "war with Iran."
Beyond emergency responses, legislative mandates have also played a role in the SPR's diminishing reserves. Since 2015, Congress has authorized sales from the reserve to fund various federal spending initiatives, with billions of dollars worth of oil sold. Efforts to replenish the reserve have faced challenges; the Biden administration's plan to buy back oil at $79 per barrel or less was hampered, and further purchases were canceled in April 2024 due to rising oil prices.
The SPR is designed to provide a critical buffer against severe oil supply interruptions. While its maximum storage capacity is 714 million barrels, existing legislation could see the reserve fall to as low as 238 million barrels by 2028. The ongoing drawdowns and challenges in replenishment raise questions about the future capacity of the United States to respond to potential energy crises.
