View History:    Monthly     Annual   
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Rocky Mountain (PADD 4) Gas Plant Production of Normal Butane-Butylene (Thousand Barrels)
Rocky Mountain (PADD 4) Gas Plant Production of Normal Butane-Butylene (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1981 274 239 271 235 227 208 232 244 228 265 274 268
  1982 285 243 291 258 294 253 241 225 230 315 324 320
  1983 311 276 294 246 263 271 251 234 237 263 280 281
  1984 476 438 480 456 448 457 443 418 439 519 498 518
  1985 527 465 522 465 474 443 459 424 456 493 498 534
  1986 536 465 514 479 503 445 435 412 421 486 518 520
  1987 518 483 496 449 450 433 453 418 428 498 483 547
  1988 553 531 554 525 543 515 527 513 508 541 529 560
  1989 571 486 574 539 559 483 511 543 492 549 542 546
  1990 546 516 572 527 520 490 502 524 505 546 528 534
  1991 594 565 608 593 635 618 660 647 624 645 615 633
  1992 505 470 453 443 476 457 445 447 448 480 506 543
  1993 541 462 497 439 440 435 467 457 463 500 488 500
  1994 512 428 497 491 525 503 511 525 490 491 493 515
  1995 569 455 538 535 492 482 519 512 522 652 599 614
  1996 600 612 576 580 556 528 524 511 510 569 586 594
  1997 543 512 535 482 542 489 514 523 520 576 577 574
  1998 561 523 594 581 588 533 546 583 574 620 588 584
  1999 613 545 595 577 561 604 648 616 598 605 570 627
  2000 624 591 663 686 675 681 722 710 719 770 725 747
  2001 766 693 770 724 716 703 708 718 727 742 743 771
  2002 769 698 765 744 756 711 718 766 746 808 759 810
  2003 794 736 760 694 692 670 718 712 720 771 728 747
  2004 748 671 734 725 757 744 754 782 762 773 775 768
  2005 776 702 787 702 732 662 704 738 700 749 701 709
  2006 713 681 754 690 753 723 753 723 719 743 730 757
  2007 702 672 805 784 808 750 769 852 891 884 926 824
  2008 856 862 972 973 975 934 975 992 965 1,007 996 979
  2009 993 926 1,029 1,003 1,053 976 1,041 1,041 1,012 1,095 1,090 1,061
  2010 1,149 1,015 1,142 1,126 1,190 1,102 1,083 1,152 1,123 1,182 1,132 1,167
  2011 1,163 1,045 1,219 1,149 1,261 1,235 1,287 1,306 1,207 1,340 1,275 1,278
  2012 1,276 1,225 1,288 1,214 1,341 1,247 1,251 1,284 1,202 1,301 1,257 1,249
  2013 1,197 1,120 1,237

- = 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

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