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Gulf Coast (PADD 3) Isobutane-Isobutylene Stocks at Refineries (Thousand Barrels)
Gulf Coast (PADD 3) Isobutane-Isobutylene Stocks at Refineries (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 1,875 1,836 1,983 2,113 2,347 2,244 2,215 2,405 2,367 1,975 1,896 1,759
  1994 1,678 1,635 1,594 1,590 1,404 1,319 1,444 1,414 1,638 1,616 1,677 1,598
  1995 1,352 1,317 1,584 1,570 1,649 1,612 1,544 1,281 1,407 1,494 1,358 1,298
  1996 1,358 1,311 1,368 1,398 1,436 1,518 1,531 1,595 1,544 1,585 1,450 1,315
  1997 1,342 1,181 1,379 1,470 1,461 1,497 1,697 2,036 2,020 1,849 1,540 1,546
  1998 1,692 1,479 1,579 1,768 1,842 1,834 1,878 1,925 1,599 1,645 1,684 1,772
  1999 1,684 1,685 1,729 1,557 1,365 1,394 1,306 1,229 1,272 1,281 1,376 1,137
  2000 1,141 981 983 1,072 1,263 1,340 1,255 1,400 1,394 1,294 1,082 859
  2001 841 984 1,045 959 1,003 990 1,180 1,375 1,569 1,473 1,207 1,011
  2002 859 975 972 978 904 984 1,182 1,093 1,300 982 939 1,000
  2003 886 1,076 1,077 963 792 820 1,031 1,015 1,133 1,117 1,255 935
  2004 994 881 927 956 981 814 872 865 821 859 973 944
  2005 1,028 1,084 1,092 1,039 995 926 865 694 669 834 1,085 1,062
  2006 977 756 1,142 1,188 1,291 836 758 855 865 843 887 907
  2007 931 984 885 782 970 946 826 904 1,156 1,406 1,186 1,116
  2008 1,174 1,316 1,367 1,152 1,264 1,367 1,482 1,387 1,243 1,260 1,197 1,195
  2009 1,437 1,367 1,352 1,278 1,008 1,062 1,067 1,119 1,052 1,170 985 1,203
  2010 1,052 852 895 976 1,010 971 990 985 1,205 1,104 1,138 1,223
  2011 1,191 1,230 1,236 1,071 1,117 1,006 968 956 1,089 1,024 1,093 944
  2012 1,150 1,078 1,039 1,072 1,131 1,001 1,184 1,131 1,135 1,059 1,141 1,168
  2013 1,260 1,166 1,133 1,138 1,104 1,262 1,077 1,008 1,059 1,068 1,107 1,163
  2014 1,098 1,144 1,024 1,128 1,205 1,066 1,012 1,022 995 1,129 1,185 1,037
  2015 1,259 1,362 1,552 1,483 1,209 958 881 1,002 1,027 1,108 1,048 1,028
  2016 1,008 1,188 1,206 1,179 1,075 1,126 1,118 1,106 1,076 1,241 1,286 1,424
  2017 1,761 1,972 1,839 1,726 1,403 1,046 1,050 1,303 1,209 1,508 1,293 1,326
  2018 1,487 1,461 1,532 1,425 1,243 1,230 1,367 1,438 1,463 1,246 1,343 1,275
  2019 1,405 1,565 1,744 1,526 1,454 1,460 1,356 1,400 1,351 1,393 1,395 1,475
  2020 1,653 1,891 1,800 1,697 1,441 1,171 1,242 1,325 1,392 1,511 755 767
  2021 731 732 847 1,055 1,062 1,156 1,134 987 1,032 799 827 860
  2022 -- -- -- -- -- -- -- -- -- -- -- --
  2023 -- -- -- -- -- -- -- -- -- -- -- --


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 2/29/2024
Next Release Date: 3/29/2024

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