U.S. strategic reserves are getting so low it threatens damaging the 60 underground salt caverns storing American oil | Fortune0

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• August 18, 2026

Strategic oil inventories have reached a 40-year low, and experts warn their continued depletion could damage the underground caverns where the reserves are stored. Last week, the Strategic Petroleum Reserve (SPR) plunged below 300 million barrels for the first time since the 1980s, when the reserves were being filled, according to the Department of Energy.