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| Midwest (PADD 2) Isobutane-Isobutylene Stocks in Pipelines (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 626 | 683 | 536 | 783 | 822 | 673 | 754 | 661 | 622 | 549 | 421 | 491 |
| 1994 | 362 | 532 | 947 | 721 | 655 | 625 | 581 | 601 | 472 | 416 | 464 | 471 |
| 1995 | 532 | 743 | 818 | 591 | 600 | 486 | 346 | 683 | 665 | 650 | 511 | 629 |
| 1996 | 572 | 502 | 564 | 551 | 632 | 603 | 699 | 674 | 632 | 499 | 473 | 501 |
| 1997 | 408 | 464 | 541 | 597 | 827 | 589 | 543 | 634 | 516 | 473 | 430 | 483 |
| 1998 | 450 | 596 | 729 | 781 | 608 | 615 | 543 | 597 | 588 | 347 | 408 | 471 |
| 1999 | 578 | 493 | 490 | 410 | 549 | 545 | 579 | 611 | 504 | 417 | 481 | 353 |
| 2000 | 458 | 279 | 599 | 623 | 407 | 525 | 394 | 467 | 544 | 418 | 269 | 426 |
| 2001 | 386 | 503 | 491 | 643 | 643 | 358 | 493 | 494 | 399 | 398 | 257 | 384 |
| 2002 | 574 | 642 | 652 | 476 | 656 | 604 | 423 | 575 | 459 | 335 | 469 | 467 |
| 2003 | 443 | 554 | 780 | 655 | 420 | 580 | 639 | 559 | 490 | 554 | 392 | 302 |
| 2004 | 442 | 456 | 673 | 462 | 524 | 630 | 595 | 591 | 533 | 480 | 450 | 456 |
| 2005 | 459 | 447 | 575 | 442 | 564 | 405 | 461 | 406 | 406 | 618 | 435 | 548 |
| 2006 | 527 | 585 | 608 | 716 | 718 | 775 | 679 | 652 | 402 | 533 | 517 | 474 |
| 2007 | 520 | 463 | 529 | 704 | 583 | 552 | 732 | 667 | 562 | 568 | 525 | 392 |
| 2008 | 453 | 506 | 731 | 618 | 533 | 612 | 640 | 522 | 466 | 461 | 480 | 518 |
| 2009 | 418 | 459 | 485 | 487 | 568 | 496 | 468 | 582 | 541 | 512 | 579 | 480 |
| 2010 | 367 | 537 | 501 | 491 | 631 | 561 | 582 | 537 | 359 | 370 | 501 | 529 |
| 2011 | 367 | 456 | 671 | 644 | 483 | 482 | 410 | 475 | 472 | 459 | 448 | 365 |
| 2012 | 408 | 730 | 754 | 719 | 764 | 821 | 640 | 577 | 497 | 426 | 462 | 571 |
| 2013 | 673 | 560 | ||||||||||
| - = 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 |