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Pennsylvania Natural Gas Underground Storage Capacity (Million Cubic Feet)
Pennsylvania Natural Gas Underground Storage Capacity (Million Cubic Feet)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  2002 713,818 713,818 713,818 713,818 713,818 713,818 950,148 950,148 950,148 950,148 950,148 950,148
  2003 950,148 950,148 950,148 950,148 950,148 714,417 714,417 714,417 714,417 714,417 714,217 714,097
  2004 712,687 712,292 712,292 709,946 709,946 709,946 709,946 709,826 721,019 748,874 748,874 748,338
  2005 748,338 748,338 748,338 748,338 748,338 748,338 748,338 748,338 748,338 748,338 748,338 748,338
  2006 748,338 748,338 748,338 748,338 748,338 748,338 748,338 748,338 748,338 748,792 748,792 748,792
  2007 754,192 748,792 754,192 748,792 748,792 748,792 748,792 748,792 755,454 755,454 755,454 755,454
  2008 755,454 755,454 755,454 755,454 755,454 755,454 755,454 755,454 755,454 755,454 759,365 759,365
  2009 759,365 759,365 759,365 777,065 777,065 777,065 777,065 777,065 777,065 777,065 777,065 776,964
  2010 776,964 776,964 776,964 776,964 776,964 776,964 776,964 776,964 776,964 776,964 776,964 776,964
  2011 776,964 776,964 776,964 776,964 776,964 776,964 776,964 776,964 776,964 776,822 776,949 776,949
  2012 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309
  2013 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309
  2014 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309 774,309
  2015 771,422 771,422 771,422 771,422 771,422 771,422 771,422 771,422 771,422 771,422 771,422 771,422
  2016 771,422 771,422 760,619 760,619 760,619 760,619 760,619 760,619 760,619 760,619 760,619 760,619
  2017 760,619 760,619 760,619 760,619 760,619 760,619 760,619 763,296 763,296 763,296 763,296 763,296
  2018 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296
  2019 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296
  2020 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296
  2021 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296
  2022 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,306 763,306 763,306
  2023 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296
  2024 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296 763,296
  2025 763,296 763,296

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 4/30/2025
Next Release Date: 5/30/2025

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