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U.S. Stocks at Bulk Terminals of Isobutane (Thousand Barrels)
U.S. Stocks at Bulk Terminals of Isobutane (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  2010 2,933 3,197 3,141 2,750 2,962 3,290 3,405 3,589 4,174 4,682 3,529 3,061
  2011 2,932 2,454 2,750 2,925 3,643 3,745 3,306 2,604 2,451 2,632 2,912 3,515
  2012 3,475 3,294 3,894 4,259 3,909 3,581 3,852 3,796 3,763 4,341 4,605 4,082
  2013 3,760 4,173 4,636 5,957 6,187 5,398 5,634 5,873 6,269 4,603 4,174 3,807
  2014 3,398 3,252 3,190 3,139 2,845 3,637 4,042 5,039 4,878 4,886 4,872 4,518
  2015 3,856 3,433 3,921 4,369 5,086 5,164 5,710 5,045 5,138 5,216 4,868 4,398
  2016 3,880 4,350 4,540 4,237 4,244 4,128 3,793 4,059 3,978 3,552 2,856 3,338
  2017 2,823 3,171 3,641 3,952 4,425 4,622 4,053 4,130 5,598 5,684 4,794 3,714
  2018 3,684 3,419 3,606 4,012 3,617 4,230 4,956 4,885 5,177 4,790 4,214 4,252
  2019 4,771 4,754 5,375 6,444 6,852 6,423 6,235 6,416 6,266 5,939 6,166 6,251
  2020 5,284 6,189 7,247 8,753 8,099 6,992 7,337 8,526 8,784 8,218 7,940 7,390
  2021 6,469 6,302 6,463 6,436 5,057 4,964 5,647 5,885 6,001 7,354 6,928 4,908
  2022 4,489 4,099 4,018 4,617 5,039 4,395 5,275 5,801 6,443 7,307 7,023 7,130
  2023 6,438 5,929 6,717 7,298 8,841 8,702 7,825 8,101 8,068 7,291 6,838 5,805
  2024 5,450 5,734 5,302 5,057 5,297 5,246 6,268 6,432 6,529 7,555 7,956 7,309
  2025 6,834 6,204 7,546 8,442 8,095 7,172 7,447 8,297 8,651 8,902 8,607 7,794
  2026 7,295


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 3/31/2026
Next Release Date: 4/30/2026

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