View History:  Monthly  
Download Data (XLS File)
Washington Natural Gas in Underground Storage (Base Gas) (Million Cubic Feet)
Washington Natural Gas in Underground Storage (Base Gas) (Million Cubic Feet)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1990 21,300 21,300 21,300 21,300 0 21,300 21,300 21,300 21,300 21,300 21,300
  1991 21,300 21,300 21,300 21,300 21,300 21,300 21,300 21,300 21,300 18,800 18,800 18,800
  1992 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800
  1993 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800
  1994 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800
  1995 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 18,800 21,123
  1996 21,413 21,683 21,963 22,200 22,200 22,200 21,852 20,062 21,518 21,728 22,029 22,200
  1997 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096
  1998 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096 22,096
  1999 22,096 21,200 21,496 21,596 21,825 22,133 22,201 19,000 19,000 19,000 19,000 19,000
  2000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000
  2001 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000
  2002 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,000 19,168 19,244 19,328 19,425
  2003 19,490 19,547 19,597 19,626 19,668 19,745 19,821 19,886 19,931 19,981 20,037 20,097
  2004 20,142 20,179 20,220 20,262 20,298 20,333 20,364 20,395 20,433 20,461 20,494 20,530
  2005 20,556 20,585 20,613 20,640 20,672 20,704 20,751 20,797 20,843 20,876 20,918 20,955
  2006 20,992 21,020 21,057 21,099 21,147 21,190 21,232 21,278 21,320 21,344 21,373 21,407
  2007 21,433 21,462 21,494 21,528 21,562 21,599 21,644 21,682 21,714 21,752 21,785 21,816
  2008 21,838 21,870 21,902 21,936 21,967 21,095 21,120 21,154 21,169 21,204 21,233 21,255
  2009 21,273 21,291 21,308 21,328 21,362 21,392 21,422 21,455 21,481 21,511 21,548 21,576
  2010 21,600 21,624 21,653 21,683 21,709 21,738 21,768 21,797 21,821 21,842 21,867 21,894
  2011 21,920 21,942 21,967 21,991 22,016 22,038 22,060 22,083 22,104 22,120 22,140 22,160
  2012 22,178 22,195 22,213 22,233 22,252 22,271 22,289 22,300 22,300 22,300 22,300 22,300
  2013 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2014 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2015 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2016 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2017 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2018 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2019 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2020 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2021 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2022 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2023 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2024 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300 22,300
  2025 22,300 22,300

- = 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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