View History:    Monthly     Annual   
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U.S. Refinery Stocks of Isobutane (Thousand Barrels)
U.S. Refinery Stocks of Isobutane (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  2010 2,628 2,432 2,319 2,159 2,395 2,403 2,403 2,291 2,532 2,460 2,657 2,498
  2011 2,497 2,613 2,654 2,651 2,636 2,402 2,328 2,260 2,316 2,180 2,444 2,281
  2012 2,570 2,511 2,494 2,595 2,540 2,402 2,648 2,334 2,487 2,599 2,588 2,372
  2013 2,689 2,714 2,398 2,296 2,330 2,420 2,145 2,071 2,261 2,299 2,428 2,240
  2014 2,214 2,415 2,498 2,560 2,994 2,910 2,563 2,390 2,367 2,528 2,430 2,188
  2015 2,623 2,708 3,020 2,985 2,572 2,514 2,494 2,678 2,681 2,525 2,615 2,495
  2016 2,431 2,753 2,719 2,604 2,576 2,546 2,518 2,400 2,301 2,526 2,596 2,611
  2017 3,015 3,250 2,954 2,894 2,469 2,114 2,105 2,445 2,408 2,794 2,519 2,450
  2018 2,647 2,715 2,850 2,579 2,382 2,315 2,423 2,481 2,585 2,083 2,417 2,270
  2019 2,451 2,749 2,814 2,694 2,715 2,858 2,773 2,758 2,612 2,597 2,700 2,643
  2020 2,823 3,047 3,188 3,030 2,588 2,395 2,440 2,432 2,525 2,672 1,801 1,746
  2021 1,735 1,659 1,829 2,109 2,064 2,081 1,970 1,925 1,985 1,651 1,700 1,845
  2022 1,926 2,109 2,137 2,185 2,063 2,149 2,010 1,820 1,772 1,620 1,746 1,719
  2023 1,976 2,025 2,292 2,165 2,133 2,082 1,993 1,871 1,757 1,865 1,960 2,007
  2024 1,956

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 3/29/2024
Next Release Date: 4/30/2024

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