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Download Data (XLS File)
Rocky Mountain (PADD 4) Isobutane-Isobutylene Stock Change (Thousand Barrels)
Rocky Mountain (PADD 4) Isobutane-Isobutylene Stock Change (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1981 32 21 2 3 -10 -6 24 -10 -1 -8 -5 29
  1982 13 -20 9 -9 -10 -4 -5 -8 3 -1 -6 -7
  1983 -35 16 7 -6 1 -4 -9 15 4 5 -20 19
  1984 4 -16 -4 9 -3 -9 24 -13 9 6 -18 -5
  1985 -2 19 -16 -10 7 0 5 2 -18 5 -13 12
  1986 -1 25 -4 20 -29 1 63 -18 20 -5 8 -36
  1987 7 21 -7 -17 -16 17 -5 -5 3 -1 14 5
  1988 19 -13 6 -24 -12 0 12 3 67 -7 -25 -39
  1989 17 0 -8 -15 -3 -15 31 -2 -13 48 -44 12
  1990 1 -5 43 -20 3 -14 -10 13 4 5 7 -18
  1991 -3 0 3 16 -7 -10 11 -10 17 -28 -9 20
  1992 46 3 -1 -9 26 -81 16 -36 50 38 1 -21
  1993 -21 3 37 33 10 -6 -51 11 -4 -15 37 3
  1994 -62 19 49 5 -25 6 -7 -21 22 27 -53 -17
  1995 9 12 17 -31 -8 -13 -10 13 17 -37 6 50
  1996 -43 -13 30 60 -36 -27 5 -22 44 -2 -29 -1
  1997 8 -27 38 3 2 -4 -17 21 42 -15 -44 -16
  1998 26 41 -11 -33 -21 22 38 6 -4 4 -1 -13
  1999 -11 6 -23 -1 -26 15 21 -24 -26 9 113
  2000 -21 22 -5 -35 16 6 -20 11 -13 -6 -21 9
  2001 19 11 7 -30 -7 39 7 -47 8 -18 11 -3
  2002 -2 17 67 -22 -10 -26 31 -4 -5 14 -9 -9
  2003 48 14 11 -56 -33 -9 -1 -1 12 -33 1 14
  2004 9 -13 33 -62 -11 19 -11 9 34 -27 -14 7
  2005 -5 -4 26 -26 19 0 -32 37 5 -37 0 11
  2006 9 11 -33 32 6 13 -43 14 8 -1 9 -47
  2007 12 9 36 -27 -7 -12 25 6 23 -32 2 1
  2008 7 -3 8 -4 -2 -8 -2 -6 13 -14 -36 4
  2009 15 10 -31 18 6 -17 4 5 4 -2 40 -25
  2010 3 10 -11 -16 49 -28 -6 24 -16 -4 -2 -7
  2011 6 -4 31 -13 8 13 -19 -2 -33 28 -6 -5
  2012 3 1 0 10 0 10 -23 -29 41 -15 40 -47
  2013 23 36 -52 37 0 -14 -7 -9 33 2 -3 -14
  2014 22 -27 74 -19 -3


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 7/30/2014
Next Release Date: Last Week of August 2014

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