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| West Coast (PADD 5) Normal Butane-Butylene Stocks at Refineries (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 854 | 680 | 854 | 883 | 904 | 863 | 1,107 | 1,256 | 1,208 | 1,381 | 1,198 | 733 |
| 1994 | 632 | 529 | 797 | 810 | 801 | 1,064 | 992 | 1,058 | 1,090 | 1,252 | 778 | 669 |
| 1995 | 731 | 610 | 676 | 888 | 758 | 690 | 924 | 928 | 1,107 | 1,315 | 1,000 | 795 |
| 1996 | 586 | 547 | 715 | 839 | 700 | 752 | 896 | 905 | 1,180 | 1,326 | 1,018 | 693 |
| 1997 | 535 | 401 | 529 | 653 | 630 | 548 | 637 | 898 | 977 | 1,281 | 779 | 585 |
| 1998 | 533 | 531 | 783 | 767 | 1,127 | 929 | 818 | 929 | 1,032 | 1,160 | 952 | 644 |
| 1999 | 568 | 605 | 648 | 795 | 893 | 634 | 878 | 950 | 1,200 | 1,475 | 997 | 761 |
| 2000 | 634 | 630 | 752 | 907 | 929 | 870 | 798 | 996 | 1,168 | 1,413 | 1,384 | 1,025 |
| 2001 | 662 | 442 | 511 | 546 | 635 | 792 | 937 | 1,067 | 1,387 | 1,682 | 1,321 | 988 |
| 2002 | 819 | 769 | 979 | 945 | 924 | 906 | 905 | 995 | 1,101 | 1,361 | 1,074 | 729 |
| 2003 | 664 | 502 | 596 | 798 | 804 | 947 | 986 | 944 | 1,100 | 1,388 | 1,094 | 937 |
| 2004 | 616 | 650 | 840 | 820 | 903 | 889 | 878 | 1,154 | 1,359 | 1,618 | 1,305 | 771 |
| 2005 | 960 | 802 | 794 | 878 | 928 | 1,003 | 1,014 | 1,049 | 1,205 | 1,527 | 1,590 | 837 |
| 2006 | 774 | 771 | 757 | 973 | 1,124 | 1,065 | 1,105 | 1,151 | 1,457 | 1,971 | 1,535 | 998 |
| 2007 | 780 | 697 | 782 | 877 | 1,068 | 1,325 | 1,396 | 1,441 | 1,722 | 1,891 | 1,667 | 1,205 |
| 2008 | 825 | 564 | 738 | 814 | 936 | 1,076 | 1,340 | 1,404 | 1,457 | 1,747 | 1,462 | 697 |
| 2009 | 724 | 688 | 763 | 1,012 | 974 | 1,057 | 1,196 | 1,443 | 1,599 | 1,658 | 1,395 | 988 |
| 2010 | 865 | 759 | 757 | 852 | 895 | 1,082 | 1,285 | 1,256 | 1,373 | 1,636 | 1,477 | 1,131 |
| 2011 | 833 | 746 | 836 | 908 | 973 | 1,062 | 1,225 | 1,387 | 1,612 | 1,631 | 1,377 | 1,045 |
| 2012 | 1,174 | 702 | 813 | 979 | 1,223 | 1,202 | 1,495 | 1,776 | 1,752 | 1,864 | 1,480 | 1,191 |
| 2013 | 1,087 | 825 | 748 | 899 | 1,102 | 1,225 | 1,439 | 1,495 | 1,677 | 1,346 | 1,070 | 852 |
| 2014 | 801 | 754 | 752 | 812 | 992 | 1,007 | 1,087 | 1,081 | 1,186 | 1,258 | 1,051 | 970 |
| 2015 | 1,113 | 652 | 598 | 612 | 690 | 699 | 768 | 730 | 853 | 1,259 | 1,003 | 924 |
| 2016 | 1,065 | 628 | 738 | 882 | 831 | 936 | 1,019 | 1,084 | 1,244 | 1,318 | 1,032 | 826 |
| 2017 | 886 | 704 | 752 | 847 | 912 | 979 | 1,021 | 1,109 | 1,105 | 1,270 | 1,128 | 775 |
| 2018 | 915 | 723 | 649 | 768 | 828 | 887 | 931 | 1,069 | 1,138 | 1,273 | 1,014 | 845 |
| 2019 | 812 | 734 | 665 | 547 | 626 | 711 | 782 | 1,090 | 1,336 | 1,502 | 1,330 | 1,106 |
| 2020 | 1,215 | 883 | 833 | 857 | 823 | 943 | 1,058 | 1,104 | 1,046 | 1,136 | 1,103 | 844 |
| 2021 | 882 | 825 | 930 | 894 | 1,112 | 1,041 | 951 | 988 | 1,075 | 1,411 | 1,368 | 982 |
| 2022 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2023 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| 2024 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | ||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 12/31/2024 |
| Next Release Date: 1/31/2025 |