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Illinois Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year  (Million Cubic Feet)
Illinois Natural Gas in Underground Storage - Change in Working Gas from Same Month Previous Year (Million Cubic Feet)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1990 9,275 18,043 13,193 1,851 5,255 9,637 5,108 8,495 9,773 7,534 9,475 11,984
  1991 -9,933 -7,259 454 6,145 6,270 3,648 2,744 1,010 -13 7,942 -12,681 -9,742
  1992 -9,345 -8,466 -9,599 -19,126 -16,878 -15,372 -13,507 -9,010 -7,228 -7,653 -6,931 -18,707
  1993 -51,572 -52,876 -51,081 -40,760 -41,229 -40,132 -39,867 -44,533 -43,110 -44,873 -36,080 -34,184
  1994 -6,101 -1,289 8,929 5,795 -3,558 -6,807 -4,948 -4,181 -3,006 -678 -77 11,376
  1995 20,962 7,104 -805 -3,970 -29,257 -30,038 -32,571 -35,022 -40,472 -36,406 -41,858 -53,433
  1996 -57,642 -40,939 -41,504 -34,834 -6,148 -2,598 3,084 6,435 11,435 9,244 7,513 15,549
  1997 18,479 19,537 18,859 16,125 12,752 8,775 6,069 6,829 6,578 6,212 20,677 11,251
  1998 17,934 22,067 17,623 18,194 18,602 18,706 13,154 8,527 5,210 5,912 -2,080 1,650
  1999 -21,059 -26,756 -25,355 -37,082 -35,407 -37,999 -39,188 -37,494 -32,413 -29,859 -26,477 -26,720
  2000 -3,683 2,681 16,664 14,611 1,962 9,111 11,490 6,616 -205 2,858 -16,931 -17,840
  2001 -2,606 -11,125 -12,599 11,789 29,941 22,809 14,426 9,711 11,736 2,955 52,403 47,533
  2002 32,524 28,108 15,368 -4,648 -10,103 1,438 9,549 22,225 27,226 30,904 -12,080 -16,539
  2003 -29,331 -31,705 -19,673 2,552 5,573 704 4,594 -1,497 -6,942 -4,443 384 9,140
  2004 12,237 17,798 4,079 -8,590 -10,096 -8,252 -5,800 -581 -3,923 -5,602 -5,483 -13,875
  2005 -12,409 -15,891 -15,692 -18,226 -16,923 -16,874 -15,566 -12,636 -6,217 -2,977 554 -206
  2006 21,068 10,640 8,752 9,365 6,660 4,759 2,465 1,616 2,447 2,417 -2 5,817
  2007 -17,777 -13,311 2,587 -997 3,100 2,170 2,275 -456 345 1,729 -4,173 -10,327
  2008 -10,119 -10,314 -16,298 -11,648 -16,497 -12,560 -11,731 -4,832 -4,967 -4,248 696 -1,148
  2009 1,970 6,584 2,077 -1,266 3,721 1,353 2,270 1,059 2,491 3,090 7,079 6,672
  2010 3,657 432 4,218 14,903 14,202 12,107 3,800 356 -1,949 439 1,249 2,321
  2011 -2,159 -1,603 -9,865 -11,348 -13,948 -11,634 -7,654 -3,290 -2,654 -6,358 949 1,175
  2012 5,715 2,772 16,963 9,218 10,993 6,246 6,133 4,934 1,813 2,511 -4,163 -766
  2013 -1,752 -7,147 -18,160 -11,767 -14,974 -8,820 -7,918 -12,002 -6,916 -8,303 -7,397 -13,824
  2014 -17,017 -5,927 -3,160 -5,833 -2,858 -2,863


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 8/29/2014
Next Release Date: 9/30/2014

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