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Posted June 3, 2026U.S. natural gas storage capacity increased slightly in 2025 ›
Note: Measures of capacity reflect final revised values as published in the Underground Natural Gas Working Storage Capacity Report.
Underground working natural gas storage capacity in the Lower 48 states increased slightly in 2025, according to our latest data, with growth concentrated in the South Central and Mountain regions. Underground natural gas storage provides a source of energy when demand increases, balancing U.S. energy needs. We calculate natural gas storage capacity in two ways: demonstrated peak capacity and working gas design capacity. Both increased in 2025.
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