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U.S. Normal Butane-Butylene Stocks at Refineries(Thousand Barrels)
U.S. Normal Butane-Butylene Stocks at Refineries(Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 5,374 4,555 5,940 6,740 7,634 8,510 9,859 11,928 11,335 10,089 7,716 6,731
  1994 5,419 4,933 5,137 6,527 7,329 8,826 10,629 11,930 11,770 11,073 8,768 6,940
  1995 5,107 4,128 5,109 6,521 7,177 8,617 10,411 11,963 12,322 10,398 8,494 5,631
  1996 4,557 3,935 4,696 5,830 6,476 7,885 9,586 11,777 12,951 10,996 7,629 5,384
  1997 4,638 4,011 4,263 5,424 7,020 8,572 9,844 12,589 12,070 11,282 8,617 6,136
  1998 4,808 4,882 5,254 7,436 9,580 11,356 12,539 14,553 13,967 12,787 10,069 7,575
  1999 5,949 4,685 5,547 7,008 8,785 9,742 11,269 13,550 12,719 11,421 9,362 6,917
  2000 5,464 5,073 5,046 6,208 7,357 8,655 10,671 12,334 11,753 10,900 8,572 6,344
  2001 4,443 3,663 3,699 5,399 7,015 8,805 10,391 12,961 12,779 11,883 9,718 8,260
  2002 6,943 6,650 7,060 8,359 9,694 11,284 12,844 15,039 14,382 13,265 10,376 8,580
  2003 7,051 5,864 6,188 8,103 9,874 10,973 12,588 13,960 13,187 12,941 10,646 9,323
  2004 8,021 6,737 6,355 6,173 8,169 9,800 11,950 13,884 13,578 12,026 9,544 7,578
  2005 6,610 5,625 6,085 7,820 9,168 10,802 11,951 13,081 12,492 10,428 8,434 6,219
  2006 5,726 5,785 6,241 8,123 9,296 9,248 10,171 12,296 12,673 12,080 9,222 7,014
  2007 5,755 5,193 5,433 7,221 8,833 10,267 10,720 11,944 11,530 10,181 7,586 6,320
  2008 5,959 4,752 5,123 6,000 7,235 8,716 10,259 11,133 10,996 10,280 8,256 6,482
  2009 5,503 4,912 5,023 6,770 8,038 9,405 10,477 11,915

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 9/29/2009
Next Release Date: Last Week of October 2009

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