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Underground Natural Gas Storage Capacity
(Capacity in Million Cubic Feet)
Area: Period:
 Monthly 
 Show Data By:
Data Series Area
Dec-24 Jan-25 Feb-25 Mar-25 Apr-25 May-25 View
History
Total Storage Capacity
9,234,031 9,246,786 9,266,755 9,266,721 9,266,689 9,266,655 2012-2025
Total Working Gas Capacity
4,736,967 4,730,959 4,746,932 4,745,219 4,745,050 4,745,024 2013-2025
Total Number of Existing Fields
409 403 403 403 403 403 2013-2025
- = 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: 7/31/2025
Next Release Date: 8/29/2025