U.S. Strategic Oil Reserve at Risk of Permanent Damage, Experts Warn

The rapid drawdown of the U.S. Strategic Petroleum Reserve (SPR) is approaching a critical threshold that could cause permanent structural damage to the underground caverns where the oil is stored, according to energy experts. The SPR, a network of salt caverns along the Gulf Coast, is the nation’s emergency stockpile of crude oil. It is designed to cushion supply shocks, such as hurricanes or international conflicts. However, the current reserve levels are now close to a point that raises serious operational concerns. The issue is physical. The caverns are created by injecting water into underground salt domes, which dissolves the salt to form a large void. The oil is then pumped in, and the weight of the oil maintains pressure on the cavern walls. If too much oil is removed too quickly, that pressure drops. Without that counter-pressure, the salt formations can crack, shift, or collapse over time. Experts warn that such damage would not just risk an immediate leak. It could compromise the structural integrity of the caverns for years, making them unusable for future storage and jeopardizing the nation’s long-term energy security. The current drawdown is part of a series of releases aimed at lowering gasoline prices. While those releases have served their immediate purpose, the experts caution that the pace is now pushing the SPR into a dangerous operational zone. If the level falls much further, the cost of repairing or replacing the damaged caverns could be enormous—and the time required to do so would leave the U.S. without its primary emergency buffer for an extended period. The warning underscores a growing tension: using the reserve to calm markets today versus preserving its capacity to respond to a true emergency tomorrow.