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Refining District Indiana-Illinois-Kentucky Isobutane-Isobutylene Stocks at Natural Gas Processing Plants (Thousand Barrels)
Refining District Indiana-Illinois-Kentucky Isobutane-Isobutylene Stocks at Natural Gas Processing Plants (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 15 14 14 14 16 14 14 14 14 14 18 16
  1994 15 16 14 14 14 15 14 15 15 14 15 17
  1995 13 13 15 14 13 13 13 13 13 13 13 13
  1996 14 15 15 15 14 14 14 14 14 15 16 15
  1997 14 14 15 15 18 17 17 15 17 16 15 18
  1998 17 17 17 14 14 14 14 14 14 14 14 15
  1999 15 15 15 15 15 14 14 15 15 15 15 15
  2000 15 15 15 15 15 15 14 14 14 14 14 21
  2001 19 25 21 17 17 17 17 22 18 21 17 20
  2002 24 22 21 16 21 21 19 21 27 18 19 20
  2003 20 24 15 22 24 23 23 24 22 28 19 18
  2004 27 49 73 20 20 19 27 33 18 21 27 17
  2005 33 31 21 19 20 26 28 26 17 27 25 22
  2006 22 26 25 23 34 35 27 39 24 25 23 24
  2007 24 26 28 30 30 32 24 37 38 24 19 27
  2008 26 25 31 26 24 30 23 31 26 25 26 22
  2009 30 34 44 42 47 64 41 38 41 41 46 34
  2010 39 49 44 42 51 42 62 52 48 55 57 55
  2011 56 55 66 52 53 51 54 45 55 53 39 37
  2012 44 39 47 45 40 47 41 43 52 56 46 52
  2013 46 57

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 4/29/2013
Next Release Date: Last Week of May 2013

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