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| Refining District Oklahoma-Kansas-Missouri Gas Plant Production of Isobutane-Isobutylene (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 556 | 578 | 687 | 664 | 669 | 640 | 658 | 629 | 651 | 680 | 441 | 497 |
| 1994 | 575 | 602 | 660 | 471 | 451 | 490 | 643 | 652 | 585 | 421 | 430 | 582 |
| 1995 | 543 | 490 | 596 | 501 | 576 | 523 | 530 | 460 | 520 | 475 | 505 | 578 |
| 1996 | 554 | 592 | 655 | 632 | 936 | 759 | 799 | 819 | 440 | 649 | 493 | 450 |
| 1997 | 429 | 406 | 726 | 808 | 803 | 794 | 576 | 430 | 416 | 453 | 555 | 590 |
| 1998 | 400 | 510 | 425 | 405 | 498 | 589 | 478 | 579 | 538 | 478 | 420 | 416 |
| 1999 | 377 | 418 | 475 | 583 | 542 | 491 | 548 | 550 | 521 | 388 | 482 | 387 |
| 2000 | 359 | 411 | 586 | 432 | 620 | 640 | 543 | 510 | 421 | 436 | 428 | 377 |
| 2001 | 354 | 379 | 506 | 651 | 663 | 642 | 664 | 662 | 597 | 627 | 584 | 562 |
| 2002 | 475 | 550 | 548 | 430 | 415 | 404 | 441 | 428 | 433 | 430 | 398 | 592 |
| 2003 | 613 | 538 | 482 | 600 | 623 | 588 | 470 | 512 | 433 | 357 | 311 | 334 |
| 2004 | 307 | 355 | 490 | 463 | 329 | 301 | 430 | 489 | 387 | 316 | 396 | 355 |
| 2005 | 300 | 279 | 316 | 395 | 524 | 382 | 504 | 538 | 521 | 550 | 524 | 484 |
| 2006 | 350 | 390 | 558 | 575 | 573 | 544 | 438 | 439 | 440 | 325 | 339 | 490 |
| 2007 | 383 | 455 | 580 | 530 | 569 | 493 | 420 | 303 | 513 | 364 | 317 | 457 |
| 2008 | 562 | 343 | 512 | 439 | 439 | 472 | 579 | 553 | 391 | 589 | 535 | 416 |
| 2009 | 351 | 433 | 515 | 521 | 537 | 595 | 584 | 501 | 349 | 404 | 463 | 335 |
| 2010 | 411 | 509 | 623 | 547 | 561 | 604 | 619 | 456 | 469 | 620 | 409 | 396 |
| 2011 | 402 | 536 | 687 | 699 | 697 | 641 | 655 | 672 | 678 | 710 | 713 | 709 |
| 2012 | 538 | 446 | 523 | 708 | 736 | 719 | 698 | 730 | 722 | 755 | 724 | 579 |
| 2013 | 502 | 457 | ||||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 4/29/2013 |
| Next Release Date: Last Week of May 2013 |