d1d89ccd_Sources__and_Explanatory_Notes__Definition
[Key Terms] Underground Gas Storage [Definition] 
The use of sub-surface facilities for storing gas that has been transferred from its original location. The facilities are usually hollowed-out salt domes, natural geological reservoirs (depleted oil or gas fields) or water-bearing sands topped by an impermeable cap rock (aquifer).
Table Definitions, Sources, and Explanatory Notes