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| Pennsylvania Working Natural Gas Underground Storage Capacity (Million Cubic Feet) | ||||||||
| Decade | Year-0 | Year-1 | Year-2 | Year-3 | Year-4 | Year-5 | Year-6 | Year-7 | Year-8 | Year-9 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2000's | 419,017 | 431,137 | ||||||||
| 2010's | 431,086 | 433,110 | 434,179 | 433,214 | 433,214 | 429,796 | 426,361 | 427,661 | 427,601 | 427,601 |
| 2020's | 427,601 | 427,626 | 426,326 | 426,326 |
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 9/30/2025 |
| Next Release Date: 10/31/2025 |