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Underground Natural Gas Storage Capacity
(Capacity in Million Cubic Feet)
Area: Period:
 Show Data By:
Data Series Area
2019 2020 2021 2022 2023 2024 View
History
Total Storage Capacity
331,607 331,129 330,928 330,504 330,099 329,698 1988-2024
Salt Caverns
184,507 184,029 183,829 183,405 183,000 182,598 1999-2024
Aquifers
0 0 0 0 0 0 1999-2024
Depleted Fields
147,100 147,100 147,100 147,100 147,100 147,100 1999-2024
Total Working Gas Capacity
202,366 201,994 201,856 201,527 201,215 200,906 2008-2024
Salt Caverns
133,456 133,084 132,945 132,616 132,304 131,996 2008-2024
Aquifers
0 0 0 0 0 0 2012-2024
Depleted Fields
68,911 68,911 68,911 68,911 68,911 68,911 2008-2024
Total Number of Existing Fields
11 11 11 11 11 11 1989-2024
Salt Caverns
5 5 5 5 5 5 1999-2024
Depleted Fields
6 6 6 6 6 6 1999-2024
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Existing fields include both active and inactive fields.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 11/28/2025
Next Release Date: 12/31/2025