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Refining District Appalachian No. 1 Isobutane-Isobutylene Stocks at Refineries (Thousand Barrels)
Refining District Appalachian No. 1 Isobutane-Isobutylene Stocks at Refineries (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 2 2 1 3 2 2 2 1 3 2 4 5
  1994 4 3 3 2 2 2 1 3 4 2 1 4
  1995 2 3 2 3 2 3 2 2 3 2 3 3
  1996 3 2 1 2 3 3 3 4 9 3 4 4
  1997 4 4 2 4 3 3 2 2 4 2 2 2
  1998 2 3 3 6 2 1 2 2 3 5 6 6
  1999 6 4 3 2 3 2 3 2 7 8 6 4
  2000 6 4 3 4 6 5 3 3 6 10 9 6
  2001 4 4 4 3 2 2 3 3 6 4 4 3
  2002 6 4 5 3 9 2 2 4 1 3 6 12
  2003 5 6 5 10 14 18 5 4 5 8 5 7
  2004 6 3 4 5 3 4 4 3 3 7 3 4
  2005 7 7 3 7 6 6 6 7 4 6 5 7
  2006 11 8 7 9 8 9 8 8 8 6 6 6
  2007 7 8 4 10 8 11 15 10 11 10 6 6
  2008 7 8 13 15 31 36 20 13 11 9 6 11
  2009 8 9 5 6 7 5 6 4 4 3 2 3
  2010 8 7 5 4 5 2 7 7 9 9 17 16
  2011 12 9 9 10 6 7 11 13 6 10 23 22
  2012 24 20 34 27 16 3 14 8 7 9 14 16
  2013 13 9 6 14 11 4 12 6 6 12 22 10
  2014 13 4 5 14


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 6/27/2014
Next Release Date: Last Week of July 2014

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