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U.S. Refinery and Blender Net Production of Liquefied Petroleum Gases - Isobutylene (Thousand Barrels)
U.S. Refinery and Blender Net Production of Liquefied Petroleum Gases - Isobutylene (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 45 51 48 86 65 54 80 35 26 76 87 92
  1994 64 101 135 96 83 105 103 22 62 42 162 143
  1995 85 98 89 68 43 -38 74 138 92 148 90 101
  1996 112 43 110 135 125 165 87 121 124 98 108 103
  1997 24 110 23 117 125 166 100 122 129 57 85 102
  1998 23 28 64 162 94 228 -7 217 137 188 110 168
  1999 55 64 24 65 103 93 154 133 126 63 61 94
  2000 83 149 51 54 50 142 173 93 92 89 115 108
  2001 89 54 79 115 72 39 96 125 102 34 36 83
  2002 58 75 54 -7 211 153 133 80 70 55 47 161
  2003 44 74 -6 75 82 84 58 79 6 47 60 52
  2004 58 61 58 61 65 47 54 6 58
  2005 36 53 22 -5 -100 -93 -36 65 24 52 27 7
  2006 56 82 31 61 65 59 60 47 61 6 86
  2007 122 49 55 45 60 62 48 37 67 80 13 17
  2008 121 62 31 30 93 74 125

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 9/30/2008
Next Release Date: Last Week of October 2008

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