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| Gulf Coast (PADD 3) Refinery and Blender Net Production of Isobutane-Isobutylene (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 134 | 101 | 86 | 124 | 111 | 118 | 89 | 110 | 26 | 12 | 16 | 38 |
| 1982 | 15 | 19 | 16 | 12 | 16 | -2 | -10 | -13 | -18 | 112 | -20 | 17 |
| 1983 | 17 | 1 | 18 | 15 | -3 | 12 | 21 | -3 | 5 | 16 | 52 | 44 |
| 1984 | -35 | -21 | -49 | -39 | -46 | -28 | -65 | -73 | -30 | 83 | 99 | -12 |
| 1985 | -41 | -57 | -53 | -70 | -6 | -62 | 38 | 3 | -43 | -85 | -57 | -27 |
| 1986 | 245 | 169 | 323 | 40 | 306 | 356 | 260 | 281 | 155 | 174 | 208 | 72 |
| 1987 | 96 | 185 | 127 | 120 | 115 | 143 | 127 | 307 | 292 | 266 | 126 | 188 |
| 1988 | 103 | 147 | 389 | 247 | 267 | 278 | 204 | 253 | 305 | 233 | 220 | 195 |
| 1989 | 300 | 109 | 532 | 478 | 493 | 372 | 349 | 430 | 265 | 334 | 342 | 216 |
| 1990 | 265 | 501 | 293 | 342 | 432 | 328 | 370 | 338 | 451 | 358 | 228 | 356 |
| 1991 | 179 | 180 | 315 | 198 | 240 | 198 | 359 | 332 | 240 | 62 | 133 | 127 |
| 1992 | 75 | 403 | 331 | 207 | 214 | 211 | 246 | 266 | 242 | 372 | 118 | -46 |
| 1993 | 166 | 289 | 207 | 231 | 591 | 401 | 421 | 378 | 297 | 106 | 191 | 184 |
| 1994 | 269 | 80 | 190 | 251 | 184 | 452 | 431 | 475 | 325 | 333 | 219 | 380 |
| 1995 | 51 | 105 | 360 | 535 | 256 | 383 | 551 | 378 | 245 | 299 | 319 | 221 |
| 1996 | 317 | 53 | 457 | 231 | 238 | 450 | 325 | 253 | 281 | 299 | 47 | 4 |
| 1997 | 193 | -73 | 293 | 264 | 363 | 168 | 465 | 325 | 288 | 299 | 220 | 231 |
| 1998 | 580 | 451 | 384 | 478 | 401 | 316 | 434 | 347 | 401 | 260 | 320 | 279 |
| 1999 | 329 | 187 | 114 | 283 | 419 | 422 | 399 | 203 | 321 | 241 | -25 | 46 |
| 2000 | 242 | 46 | 285 | 248 | 384 | 362 | 415 | 506 | 274 | 143 | 26 | 9 |
| 2001 | 357 | 147 | 30 | 353 | 460 | 197 | 268 | 306 | 93 | -46 | -295 | -217 |
| 2002 | 143 | 233 | 201 | 141 | 260 | 388 | 500 | 302 | 414 | -182 | -106 | 250 |
| 2003 | -365 | 330 | 331 | 37 | -38 | 200 | 65 | -31 | 296 | 221 | 273 | 70 |
| 2004 | -97 | -132 | 113 | 220 | -25 | -159 | -256 | -129 | -183 | -184 | -55 | -226 |
| 2005 | -96 | -337 | -453 | -322 | -542 | -565 | -285 | -180 | -80 | -165 | 101 | -242 |
| 2006 | -384 | -473 | 89 | -183 | -107 | -483 | -293 | -117 | -81 | 52 | -139 | -7 |
| 2007 | 370 | 434 | 85 | -124 | 234 | 28 | 35 | -15 | -12 | 131 | -202 | -177 |
| 2008 | -3 | 265 | 295 | 323 | 203 | -6 | 45 | 143 | 197 | 49 | 177 | 318 |
| 2009 | 498 | 29 | 62 | -63 | -400 | -76 | -213 | -186 | -102 | -94 | 120 | 607 |
| 2010 | -31 | -219 | 73 | 61 | -61 | 10 | -56 | -252 | -238 | -151 | -321 | -95 |
| 2011 | 98 | 400 | 347 | 68 | 262 | 108 | 17 | 33 | 78 | -67 | -134 | 20 |
| 2012 | -22 | 215 | 528 | 573 | 26 | -89 | 67 | -50 | -212 | 264 | 194 | 26 |
| 2013 | 169 | 272 | 94 | -22 | 28 | -1 | 24 | -132 | -259 | -333 | -232 | -250 |
| 2014 | -234 | -23 | -159 | -169 | -474 | -332 | -212 | -50 | -125 | -205 | -267 | -480 |
| 2015 | -358 | -141 | -266 | -293 | -303 | -339 | -402 | -183 | -80 | -72 | -25 | -227 |
| 2016 | -367 | -99 | -216 | -123 | -119 | -159 | -119 | -202 | -313 | -273 | -310 | -212 |
| 2017 | -239 | 300 | 491 | -118 | -193 | -201 | -391 | -212 | -252 | -191 | -458 | -590 |
| 2018 | -505 | -398 | -253 | -389 | -447 | -488 | -576 | -175 | -373 | -369 | -517 | -512 |
| 2019 | -340 | -265 | -368 | -520 | -498 | -483 | -486 | -455 | -456 | -458 | -634 | -663 |
| 2020 | -529 | -383 | -153 | -413 | -450 | -329 | -317 | -555 | -472 | -337 | -403 | -534 |
| 2021 | -456 | -210 | 42 | -241 | 36 | 86 | -36 | -143 | -231 | -43 | -221 | -259 |
| 2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2023 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2024 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 12/31/2024 |
| Next Release Date: 1/31/2025 |