View History:    Monthly     Annual   
Download Data (XLS File)
Pennsylvania Working Natural Gas Underground Storage Capacity (Million Cubic Feet)
Pennsylvania Working Natural Gas Underground Storage Capacity (Million Cubic Feet)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  2012 433,110 433,110 433,110 433,110 433,088 433,088 433,088 433,088 433,088 433,089 433,089 434,179
  2013 433,084 433,084 433,084 433,084 433,084 433,084 433,214 433,214 433,214 433,214 433,214 433,214
  2014 433,214 433,214 433,214 433,214 433,214 433,214 433,214 433,214 433,214 433,214 433,214 433,214
  2015 432,564 432,564 432,564 432,564 432,564 429,796 429,796 429,796 429,796 429,796 429,796 429,796
  2016 429,796 429,796 425,861 425,861 425,861 425,861 425,861 425,861 425,861 425,861 425,861 426,361
  2017 426,361 426,361 426,361 426,361 426,361 427,661 427,661 427,661 427,661 427,661 427,661 427,661
  2018 427,661 427,661 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601
  2019 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601
  2020 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601 427,601
  2021 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626
  2022 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626 427,626
  2023 427,626 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326
  2024 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326 426,326
  2025 426,326 426,326 426,326 426,326 426,326 426,326 426,326

- = 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

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