View History:    Monthly     Annual   
Download Data (XLS File)
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)
Midwest (PADD 2) Field Production of Isobutane (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1981 655 536 588 631 636 514 487 550 519 574 514 591
  1982 603 461 525 573 532 467 483 541 469 491 593 600
  1983 628 463 523 458 475 519 449 506 473 534 573 608
  1984 523 490 551 603 624 615 632 631 631 664 676 631
  1985 637 607 615 586 691 549 562 657 654 748 719 778
  1986 677 579 577 623 663 642 626 569 574 626 640 588
  1987 579 558 620 580 608 639 640 645 634 694 552 539
  1988 590 653 696 653 656 614 632 648 590 604 630 569
  1989 691 606 651 610 634 644 687 646 592 616 649 477
  1990 626 621 679 637 674 598 680 644 583 513 627 660
  1991 654 652 785 714 772 693 727 694 661 738 684 684
  1992 739 665 721 729 712 695 699 738 678 739 740 732
  1993 629 644 758 737 744 718 734 709 726 750 509 561
  1994 637 658 725 538 520 556 712 717 653 489 497 644
  1995 604 551 664 562 638 584 591 523 579 529 565 635
  1996 604 644 711 687 992 814 858 882 499 718 555 513
  1997 491 460 778 863 861 856 644 499 483 517 619 656
  1998 457 566 477 454 546 642 530 636 584 522 463 464
  1999 418 464 520 636 595 540 597 598 568 439 528 440
  2000 406 463 639 485 678 695 596 566 476 486 468 426
  2001 417 473 607 757 771 745 771 775 707 728 696 682
  2002 596 694 670 529 527 507 561 554 533 547 550 750
  2003 775 678 606 720 723 705 613 645 555 509 446 463
  2004 445 502 669 580 458 435 585 667 530 461 566 512
  2005 459 421 443 527 672 523 663 698 627 650 632 590
  2006 470 502 670 698 693 661 548 558 533 426 441 595
  2007 491 567 680 619 745 738 629 480 676 475 413 611
  2008 773 530 714 639 656 652 793 751 605 746 744 539
  2009 486 662 765 783 807 857 822 742 555 621 666 456
  2010 532 666 860 762 804 839 852 709 698 813 595 632
  2011 642 773 959 894 950 892 921 922 878 974 976 921
  2012 747 639 719 906 923 1,015 993 1,015 969 943 989 916
  2013 827 736 886 1,123 1,033 947 1,282 1,280 1,300 1,084 1,050 932
  2014 908 1,035 1,235 1,308 1,438 1,345 1,454 1,491 1,479 1,529 1,341 1,249
  2015 1,208 1,151 1,826 1,451 1,475 1,392 1,476 1,431 1,439 1,634 1,406 1,710
  2016 1,524 1,423 1,599 1,763 1,838 1,715 1,744 1,792 1,689 1,639 1,641 1,558
  2017 1,351 1,266 1,534 1,681 1,760 1,715 1,825 1,795 1,781 1,544 1,460 1,512
  2018 1,519 1,348 1,736 1,856 2,042 2,010 2,035 1,956 1,792 1,806 1,622 1,755
  2019 1,910 1,680 1,841 1,857 1,933 1,711 1,931 2,112 2,047 2,060 1,828 1,847
  2020 1,794 1,722 2,013 2,008 1,704 1,803 2,102 2,233 2,173 2,019 1,787 1,814
  2021 2,000 1,378 1,928 1,803 1,975 2,012 2,100 2,005 1,951 2,014 1,798 1,811
  2022 1,751 1,594 2,045 1,957 1,985 1,924 2,083 2,092 2,142 2,364 2,096 2,004
  2023 2,155 1,996 2,118

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 5/31/2023
Next Release Date: 6/30/2023

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