Mumbai, June 4 -- US Energy Information Administration or EIA has stated in a latest update that underground working natural gas storage capacity in the Lower 48 states increased slightly in 2025, according to 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 US energy needs. It calculates natural gas storage capacity in two ways: demonstrated peak capacity and working gas design capacity. Both increased in 2025.
Demonstrated peak capacity is the sum of the largest volume of working gas stored in each storage field during the previous five-year period, regardless of when the peaks occurred. Demonstrated peak capacity ...