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East Coast (PADD 1) Isobutane-Isobutylene Stocks at Refineries(Thousand Barrels)
East Coast (PADD 1) Isobutane-Isobutylene Stocks at Refineries(Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 138 135 96 186 266 213 104 185 199 217 145 107
  1994 111 132 124 96 214 174 199 269 284 232 261 223
  1995 187 152 124 143 118 132 155 146 120 230 229 218
  1996 209 172 135 219 230 274 270 247 257 238 175 177
  1997 180 251 81 126 366 471 403 331 365 364 364 403
  1998 336 144 301 379 272 297 291 332 286 239 151 192
  1999 122 174 189 206 183 82 449 383 327 237 141 191
  2000 144 244 124 106 173 297 305 248 235 198 120 155
  2001 170 222 168 140 209 296 244 288 237 227 214 221
  2002 304 297 435 522 495 493 462 295 271 300 264 301
  2003 329 298 183 365 371 509 268 174 183 174 194 160
  2004 241 287 303 361 460 374 319 359 286 232 233 179
  2005 255 232 189 455 407 273 259 239 155 417 331 213
  2006 282 266 203 193 412 318 326 298 245 200 211 277
  2007 318 205 341 377 375 287 397 356 404 295 257 284
  2008 265 215 324 442 378 352 260 171 351 280 214 367
  2009 354 344 427 314 412 435 252 422

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 10/29/2009
Next Release Date: Last Week of November 2009

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