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| West Coast (PADD 5) Gas Plant Production of Normal Butane-Butylene (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 48 | 47 | 57 | 59 | 56 | 54 | 54 | 59 | 59 | 62 | 54 | 42 |
| 1982 | 172 | 173 | 201 | 195 | 208 | 221 | 227 | 223 | 208 | 202 | 184 | 198 |
| 1983 | 184 | 180 | 206 | 199 | 221 | 225 | 218 | 214 | 205 | 214 | 193 | 190 |
| 1984 | 148 | 142 | 159 | 146 | 164 | 158 | 157 | 181 | 176 | 188 | 176 | 179 |
| 1985 | 169 | 163 | 183 | 221 | 233 | 230 | 213 | 243 | 233 | 238 | 214 | 208 |
| 1986 | 250 | 218 | 232 | 247 | 227 | 198 | 192 | 194 | 196 | 201 | 185 | 195 |
| 1987 | 202 | 353 | 592 | 360 | 643 | 708 | 744 | 755 | 732 | 707 | 860 | 847 |
| 1988 | 807 | 697 | 780 | 672 | 737 | 717 | 694 | 707 | 708 | 719 | 657 | 642 |
| 1989 | 654 | 595 | 596 | 599 | 711 | 687 | 617 | 658 | 555 | 654 | 346 | 374 |
| 1990 | 436 | 577 | 618 | 434 | 648 | 489 | 529 | 587 | 473 | 688 | 579 | 552 |
| 1991 | 465 | 439 | 576 | 591 | 570 | 597 | 604 | 561 | 526 | 720 | 656 | 648 |
| 1992 | 798 | 696 | 702 | 658 | 743 | 687 | 694 | 676 | 659 | 721 | 759 | 749 |
| 1993 | 805 | 754 | 817 | 792 | 816 | 739 | 503 | 760 | 700 | 801 | 831 | 805 |
| 1994 | 818 | 686 | 688 | 608 | 751 | 683 | 660 | 656 | 733 | 621 | 650 | 711 |
| 1995 | 663 | 645 | 628 | 630 | 699 | 639 | 598 | 776 | 653 | 806 | 744 | 818 |
| 1996 | 897 | 865 | 883 | 908 | 892 | 727 | 676 | 536 | 692 | 780 | 703 | 946 |
| 1997 | 521 | 446 | 510 | 459 | 467 | 444 | 365 | 340 | 345 | 519 | 564 | 592 |
| 1998 | 639 | 344 | 443 | 324 | 425 | 281 | 261 | 296 | 247 | 360 | 444 | 579 |
| 1999 | 550 | 479 | 441 | 301 | 335 | 213 | 237 | 420 | 269 | 408 | 491 | 603 |
| 2000 | 626 | 527 | 620 | 473 | 461 | 289 | 311 | 409 | 298 | 540 | 519 | 530 |
| 2001 | 516 | 465 | 427 | 425 | 308 | 514 | 260 | 280 | 210 | 228 | 494 | 422 |
| 2002 | 365 | 370 | 457 | 293 | 345 | 298 | 135 | 259 | 207 | 226 | 405 | 594 |
| 2003 | 492 | 459 | 524 | 343 | 321 | 323 | 201 | 179 | 172 | 337 | 416 | 520 |
| 2004 | 528 | 524 | 394 | 235 | 219 | 104 | 254 | 180 | 136 | 335 | 470 | 572 |
| 2005 | 452 | 357 | 365 | 310 | 316 | 230 | 248 | 124 | 166 | 311 | 323 | 391 |
| 2006 | 415 | 379 | 328 | 231 | 159 | 95 | 91 | 40 | 103 | 259 | 72 | 331 |
| 2007 | 368 | 127 | 263 | 77 | 98 | 37 | 31 | 77 | 52 | 219 | 265 | 257 |
| 2008 | 228 | 328 | 125 | 237 | 119 | 18 | 36 | 50 | 222 | 177 | 244 | 245 |
| 2009 | 210 | 274 | 351 | 22 | 191 | 20 | 37 | -89 | 187 | 108 | 343 | 337 |
| 2010 | 343 | 329 | 505 | 206 | 240 | 122 | -15 | 3 | 51 | 188 | 367 | 393 |
| 2011 | 237 | 267 | 212 | 250 | 152 | 68 | -8 | 43 | 132 | 99 | 258 | 360 |
| 2012 | 362 | 410 | 128 | 152 | 160 | 134 | 87 | -136 | 0 | 261 | 398 | 390 |
| 2013 | 436 | 271 | 343 | |||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 5/30/2013 |
| Next Release Date: Last Week of June 2013 |