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U.S. Refinery and Blender Net Production of Liquefied Petroleum Gases - Isobutane (Thousand Barrels)
U.S. Refinery and Blender Net Production of Liquefied Petroleum Gases - Isobutane (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 176 252 334 255 679 420 402 507 286 97 159 241
  1994 354 180 359 162 164 438 549 802 114 140 58 271
  1995 -196 -38 550 532 263 472 726 475 181 423 245 -14
  1996 176 202 404 274 93 642 371 200 522 245 -227 -175
  1997 329 18 124 386 468 188 497 250 424 228 14 113
  1998 325 167 250 680 228 478 633 131 175 55 -171 -37
  1999 216 286 -6 564 439 297 634 -155 88 -38 -283 -134
  2000 -95 -95 57 165 235 327 508 239 -51 50 -253 -171
  2001 113 39 4 -39 355 -80 -130 6 -84 -419 -637 -679
  2002 -375 -45 105 0 -121 0 123 -62 97 -697 -684 -323
  2003 -633 -187 -312 -383 -687 41 -517 -511 7 -411 -271 -402
  2004 -509 -595 -681 -330 -753 -817 -836 -688 -539 -803 -434 -466
  2005 -603 -923 -1,215 -900 -1,222 -1,171 -976 -974 -1,037 -933 -349 -830
  2006 -46 -99 -52 -191 367 -377 -161 72 -124 -90 -175 -50
  2007 249 598 392 16 300 18 337 40 56 3 -241 -306
  2008 -110 25 522 460 152 151 -146 85 293 -99

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 12/29/2008
Next Release Date: Last Week of January 2009

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