Underground working natural gas storage capacity in the Lower 48 states increased in 2024.
Two metrics are used to assess working natural gas storage capacity. The first metric — demonstrated peak capacity — rose 1.7%, or 71 billion ft3, in 2024, reflecting increased use of natural gas storage due to market conditions. The second metric — working gas design capacity — rose 0.1%, or 3 billion ft3, in 2024. Underground natural gas storage capacity continues to play an important role in balancing energy needs in the United States, regardless of how it is measured.