U.S. Strategic Petroleum Reserve faces stress as emergency releases strain old infrastructure

• The SPR currently holds about 308 million barrels and will drop to approximately 243 million barrels when President Trump's emergency release is complete, compared to 714 million barrels of authorized storage capacity.
• A Government Accountability Office report found that more than 25% of inventory (at least 103 million barrels) is not deployable due to construction and cavern outages affecting the aging infrastructure.
• The Energy Department is implementing a $1.4 billion repair plan but had to narrow its scope to stay within budget, with officials warning the system is held together with 'Band-Aids' of uncertain longevity.

U.S. Strategic Petroleum Reserve Under Strain from Emergency Releases and Aging Infrastructure

The U.S. Strategic Petroleum Reserve (SPR) has fallen to its lowest level since March 1983, dropping to approximately 308 million barrels after withdrawing 352 million barrels over four years. The drawdowns responded to supply disruptions from the U.S.-Iran war (2026) and Russia's Ukraine invasion (2022).

Key Infrastructure Concerns:

The Government Accountability Office warned in May that over 25% of the reserve's inventory—roughly 103 million barrels—is unavailable for drawdown due to construction and cavern outages. Department of Energy officials described the aging infrastructure of pipelines, caverns, and storage tanks as held together with "Band-Aids," with uncertain longevity.

Recent Developments:

President Trump ordered releases in March 2026 as Iran disrupted exports through the Strait of Hormuz, creating history's largest supply disruption. When fully executed, inventory will drop to approximately 243 million barrels—far below the authorized capacity of 714 million barrels. This follows President Biden's record 180-million-barrel release during the Russia-Ukraine crisis.

Financial and Operational Impact:

The Energy Department is implementing a $1.4 billion repair plan but has narrowed its scope due to budget constraints. Established in 1975, the SPR's infrastructure is reaching end-of-life as releases become larger and more frequent. Federal auditors noted that repeated drawdowns accelerate equipment degradation and highlighted risks to repeating similar-scale releases in the near future.

The operational minimum for safe cavern management is approximately 70 million barrels (10% capacity), though federal law mandates no minimum level. Former officials maintain the SPR can still address another crisis despite current constraints.