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| Midwest (PADD 2) Normal Butane-Butylene Stock Change (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | -123 | -950 | -231 | 415 | 666 | 1,078 | 1,313 | 778 | 175 | -934 | -1,193 | -1,743 |
| 1982 | -1,138 | -535 | -711 | 305 | 412 | 712 | -275 | 467 | -258 | -636 | -789 | -407 |
| 1983 | -251 | 488 | 96 | 137 | 172 | 1,091 | 262 | 982 | -141 | -461 | -1,132 | -649 |
| 1984 | -889 | -165 | 39 | 162 | 538 | 3 | 264 | -69 | 470 | -563 | -242 | -639 |
| 1985 | -140 | -679 | 107 | 25 | 597 | 810 | 1,047 | 517 | -87 | -485 | -848 | -94 |
| 1986 | -729 | -177 | -370 | 161 | 446 | 652 | 451 | 738 | 438 | 212 | -494 | -1,195 |
| 1987 | -844 | -568 | -321 | 325 | 516 | 300 | 534 | 450 | 179 | 74 | -644 | -405 |
| 1988 | -56 | -414 | 147 | 625 | 692 | 978 | 963 | 864 | 269 | -309 | -1,071 | -1,038 |
| 1989 | -1,453 | -287 | -26 | 594 | 1,128 | 770 | 1,199 | 1,207 | 189 | -1,829 | -1,227 | -2,010 |
| 1990 | -903 | -384 | 954 | 18 | 1,114 | 1,161 | 1,215 | 1,473 | 390 | -441 | -1,489 | -1,982 |
| 1991 | -1,651 | -700 | 844 | 1,069 | 1,291 | 1,152 | 1,269 | 1,259 | 110 | -710 | -1,830 | -1,890 |
| 1992 | -1,896 | -136 | 1,185 | 1,537 | 1,938 | 1,093 | 1,596 | 1,355 | 348 | -1,476 | -2,102 | -3,002 |
| 1993 | -1,786 | -779 | 528 | 1,285 | 1,355 | 1,613 | 1,785 | 1,261 | 325 | -1,918 | -1,355 | -1,656 |
| 1994 | -1,712 | -1,456 | 323 | 1,374 | 963 | 1,211 | 1,649 | 1,215 | 256 | -1,327 | -1,718 | -2,730 |
| 1995 | -1,416 | -591 | 217 | 1,296 | 1,247 | 998 | 1,291 | 1,376 | 2,566 | -1,250 | -1,619 | -2,660 |
| 1996 | -1,653 | -1,519 | -5 | 1,401 | 1,005 | 663 | 1,160 | 993 | -82 | 156 | -1,173 | -1,300 |
| 1997 | -1,636 | -661 | -755 | 669 | 1,526 | 1,306 | 1,395 | 1,484 | 53 | -829 | -1,824 | -1,507 |
| 1998 | -1,497 | -513 | -59 | 2,127 | 1,629 | 1,534 | 1,157 | 827 | -292 | -1,061 | -1,614 | -1,955 |
| 1999 | -851 | -1,175 | -210 | 1,168 | 1,095 | 1,760 | 1,418 | 1,383 | -371 | -793 | -1,189 | -2,110 |
| 2000 | -1,564 | -1,234 | -170 | 1,583 | 1,622 | 1,593 | 1,550 | 1,838 | 310 | -1,154 | -1,400 | -1,924 |
| 2001 | -2,212 | -1,382 | -326 | 1,290 | 1,603 | 2,295 | 2,159 | 2,042 | 448 | -1,250 | -2,458 | -2,200 |
| 2002 | -2,589 | -1,545 | 242 | 1,611 | 1,942 | 1,911 | 2,280 | 2,509 | 173 | -1,793 | -3,250 | -2,063 |
| 2003 | -2,124 | -1,407 | -246 | 1,491 | 1,699 | 1,581 | 2,317 | 2,130 | 275 | -1,126 | -2,169 | -2,303 |
| 2004 | -1,483 | -1,679 | -187 | 1,303 | 2,026 | 1,654 | 2,392 | 1,936 | 578 | -1,487 | -2,380 | -2,576 |
| 2005 | -2,283 | -708 | 114 | 1,817 | 1,826 | 2,027 | 2,063 | 2,017 | -805 | -1,620 | -2,017 | -2,707 |
| 2006 | -1,214 | -1,043 | 291 | 2,117 | 2,040 | 2,090 | 2,342 | 1,423 | 511 | -855 | -2,928 | -2,181 |
| 2007 | -1,881 | -1,604 | -229 | 1,707 | 2,373 | 1,631 | 1,833 | 3,009 | 98 | -1,199 | -2,538 | -3,134 |
| 2008 | -2,286 | -1,985 | -92 | 1,795 | 2,186 | 2,501 | 1,710 | 2,103 | 53 | -1,261 | -3,084 | -2,976 |
| 2009 | -1,991 | -1,563 | -412 | 2,167 | 2,507 | 2,885 | 3,174 | 2,875 | -339 | -2,609 | -3,555 | -2,557 |
| 2010 | -2,388 | -1,741 | -187 | 1,647 | 2,741 | 2,215 | 3,057 | 3,601 | 506 | -1,795 | -2,285 | -2,847 |
| 2011 | -2,998 | -2,719 | -135 | 2,671 | 2,811 | 3,196 | 3,272 | 2,618 | 688 | -1,386 | -3,389 | -4,296 |
| 2012 | -2,977 | -2,469 | -226 | 2,339 | 2,728 | 2,556 | 2,103 | 3,546 | 552 | -1,882 | -3,644 | -3,975 |
| 2013 | -2,564 | -1,510 | ||||||||||
| - = 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 |