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Montana Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet)
Montana Natural Gas in Underground Storage (Working Gas) (Million Cubic Feet)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1990 184,212 180,918 178,620 181,242 179,235 181,374 183,442 187,348 185,848 181,029
  1991 179,697 178,285 176,975 176,918 178,145 179,386 181,094 182,534 182,653 181,271 178,539 174,986
  1992 111,256 109,433 109,017 109,150 110,146 110,859 111,885 112,651 112,225 110,868 107,520 101,919
  1993 96,819 92,399 89,640 87,930 86,773 86,048 87,257 87,558 88,012 87,924 85,137 81,930
  1994 78,106 72,445 71,282 70,501 71,440 73,247 74,599 75,685 77,456 78,490 76,784 74,111
  1995 70,612 68,618 67,929 68,727 70,007 72,146 75,063 78,268 79,364 78,810 75,764 70,513
  1996 64,260 60,824 56,947 56,302 55,522 58,309 61,572 65,077 68,598 68,265 63,513 58,011
  1997 52,362 48,380 45,791 43,982 44,829 46,463 49,173 51,514 53,005 51,991 49,232 46,065
  1998 41,644 39,091 36,076 35,853 38,425 40,450 42,745 47,271 51,511 53,044 50,439 46,527
  1999 41,621 38,247 35,838 34,510 35,080 36,865 38,660 41,203 42,675 42,157 40,969 38,296
  2000 34,220 31,030 28,867 28,247 27,725 28,182 30,205 32,459 33,401 33,376 29,660 24,494
  2001 20,286 15,783 14,153 14,155 17,058 21,092 26,616 31,582 36,436 38,009 37,519 33,630
  2002 18,313 15,548 11,947 11,237 13,116 17,031 23,621 28,806 33,098 33,029 31,115 27,642
  2003 23,289 18,557 14,929 15,145 16,294 18,042 20,386 22,454 24,086 25,722 23,095 19,716
  2004 14,418 9,790 7,131 7,078 8,698 11,107 15,023 19,533 25,454 28,649 28,101 22,980
  2005 17,117 13,434 10,498 11,412 14,143 17,848 22,018 25,351 27,670 28,760 27,958 23,100
  2006 20,033 15,904 13,465 16,764 23,315 29,766 35,987 41,506 47,269 49,772 46,082 40,996
  2007 34,857 29,253 25,929 26,017 29,737 33,499 38,197 42,221 44,542 46,303 45,529 39,712
  2008 32,429 26,390 21,529 18,946 19,688 21,202 23,932 27,236 30,451 30,694 29,132 22,507
  2009 16,160 12,357 8,990 12,102 21,311 29,543 37,939 47,089 55,081 59,144 62,853 55,141
  2010 47,888 41,505 40,637 47,138 55,052 59,924 65,138 69,825 72,613 71,377 66,385 58,859
  2011 50,990 43,671 38,121 36,384 36,422 38,301 41,425 44,729 47,275 48,857 46,286 41,304
  2012 35,467 30,745 30,067 33,446 36,547 40,892 45,251 49,554 53,337 54,104 51,934 45,626
  2013 38,309 33,149 29,138 27,101 29,126 31,885 35,935 40,947 46,495 45,835 40,318 32,700
  2014 25,680 18,335 13,488 11,196 12,958 15,109 17,961 20,032 21,985 23,727 20,039 16,693
  2015 12,105 8,791 8,963 10,312 12,857 15,985 19,370 22,815 24,916 25,966 23,510 19,890
  2016 15,496 13,439 14,209 18,153 23,354 28,262 31,522 34,987 37,178 37,960 35,559 27,254
  2017 20,179 16,137 14,950 16,953 21,019 25,201 28,759 31,152 35,243 36,055 32,124 24,705
  2018 17,686 11,217 7,018 7,460 11,543 15,566 19,737 24,204 26,654 24,176 20,575 17,475
  2019 11,659 5,428 3,934 5,755 8,469 12,693 16,480 20,104 24,066 23,190 19,628 14,721
  2020 8,620 3,282 2,174 4,529 10,153 15,906 20,738 24,854 29,698 31,754 28,334 21,314
  2021 14,071 7,366 4,188 5,248 8,120 11,810 15,682 20,914 26,427 28,517 25,997 19,161
  2022 11,808 5,703 2,987 4,339 9,398 15,259 20,567 26,061 30,995 33,121 27,997 21,002
  2023 16,060 10,436 6,300 8,913 14,370 20,312 26,272 29,957 32,588 33,492 31,005 26,023
  2024 18,766 13,441 9,402 13,078 19,020 26,277

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 8/30/2024
Next Release Date: 9/30/2024

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