View History:    Monthly     Annual   
Download Data (XLS File)
Rocky Mountain (PADD 4) Imports of Isobutane-Isobutylene (Thousand Barrels)
Rocky Mountain (PADD 4) Imports of Isobutane-Isobutylene (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1984 96 106 90 78 61 48 61 64 73 166 130 166
  1985 112 99 89 48 45 53 91 106 101 77 86 98
  1986 118 101 75 81 79 68 61 49 80 46 97 80
  1987 100 101 98 88 55 66 68 50 58 103 84 110
  1988 103 79 72 52 82 37 49 49 53 33 67 86
  1989 23 13 14 2 7 7 10 6 14 13 15 22
  1990 9 28 32 17 30 31 33 32 26 21 50 29
  1991 15 9 6 15 47 16 11 7 12 16 26 14
  1992 22 10 7 5 5 5 5 24 25 23 14 11
  1993 3 13 8 12 23 4 16 19 10 5 21 14
  1994 12 19 11 5 4 1 1 5 1 11
  1995 10 2 4 3 14 12 7 15 56 14
  1996 8 14 37 14 13 69 29 43 43 31 9
  1997 8 12 32 32 23 23 15
  1998 1
  1999 5 4 11 14 16 17 18 23 10
  2000 5 11 10 3 13 12 13
  2001 16 19 5 6
  2002 8
  2004 2 21 2
  2007 5
  2008 4
  2009 9 8 4 4 4 20 3
  2010 6 4 4 11 3 6 7 12 5
  2011 7 8 3 3 16 18 23
  2012 17 13 6 19 19 19
  2013 18 19 22 7 11 6 19 25 11 16 17 11
  2014 13


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 3/28/2014
Next Release Date: Last Week of April 2014

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