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West Coast (PADD 5) Refinery and Blender Net Production of Liquefied Petroleum Gases - Isobutane/Isobutylene (Thousand Barrels)
West Coast (PADD 5) Refinery and Blender Net Production of Liquefied Petroleum Gases - Isobutane/Isobutylene (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1984 3 -4 -3 -3 -1
  1985 9 3 16
  1986 68 11 3 -40 -16 1 50 -97 148 -29 7 24
  1987 136 111 70 146 145 186 144 134 134 83 143 56
  1988 120 118 191 164 149 158 241 135 164 66 46 0
  1989 97 65 78 60 87 71 155 5 112 -28 15 -154
  1990 38 -104 -46 -6 34 36 137 80 128 4 -12 -35
  1991 107 17 123 -5 90 52 -29 104 -70 -168 -29 -16
  1992 77 56 53 94 205 150 86 138 92 100 -43 -74
  1993 39 -11 94 74 168 128 143 141 105 57 47 87
  1994 24 133 225 104 120 226 237 212 5 31 2 -7
  1995 -32 27 237 126 97 76 181 147 92 80 32 -167
  1996 -41 293 1 151 -44 207 42 141 154 -30 -212 -60
  1997 140 108 -18 191 195 259 250 127 201 53 -69 8
  1998 140 65 -55 183 116 485 298 91 190 208 -184 -82
  1999 -21 192 132 420 131 197 368 -10 212 24 53 60
  2000 43 12 115 164 95 227 409 51 85 132 32 55
  2001 -111 0 154 21 67 103 2 45 170 88 11 -5
  2002 -119 33 236 47 77 -2 28 163 9 39 -40 79
  2003 -28 -34 -221 -57 -261 -83 -113 -97 -11 -137 -18 -60
  2004 -110 -109 -172 -253 -323 -304 -203 -212 -175 -330 -137 -30
  2005 -203 -281 -414 -220 -356 -280 -387 -390 -390 -309 -182 -296
  2006 181 129 73 4 169 84 40 119 -60 -220 -26 -8
  2007 -137 207 124 50 44 -77 13 33 -96 -88 94 -72
  2008 204 12 144 -46 -19 39

Release Date: 8/26/2008
Next Release Date: Last Week of September 2008

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