View History:    Monthly     Annual   
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Refining District Indiana-Illinois-Kentucky Refinery and Blender Net Input of Isobutane (Thousand Barrels)
Refining District Indiana-Illinois-Kentucky Refinery and Blender Net Input of Isobutane (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  2009 1,017 1,006 1,069 911 1,069 1,099 1,024 1,041 929 879 922 907
  2010 896 702 735 843 962 979 856 1,004 727 622 879 1,057
  2011 1,077 797 1,105 907 770 852 980 971 965 841 914 767
  2012 748 765 814 847 811 1,020 1,078 1,056 1,124 995 963 988
  2013 795 817 910 671 706 946 1,031 1,124 1,059 1,044 827 1,012
  2014 887 781 956 749 991 921 1,083 936 959 939 960 1,031
  2015 841 927 1,041 796 692 696 807 1,186 1,164 1,002 1,103 1,056
  2016 1,177 1,001 1,217 1,128 996 1,012 1,155 1,238 1,173 1,103 1,056 1,111
  2017 1,073 893 949 841 1,102 944 1,120 1,172 1,083 875 862 998
  2018 936 895 1,176 1,277 1,231 1,267 1,002 1,109 1,037 1,135 1,003 1,065
  2019 923 959 1,135 818 796 849 1,100 1,178 1,163 1,316 1,127 1,098
  2020 1,031 1,166 999 637 850 673 819 973 986 1,136 1,027 856
  2021 904 838 1,038 695 813 1,095 1,153 1,098 940 1,168 1,188 1,313
  2022 1,263 985 1,153 1,233 1,338 1,240 1,245 1,304 1,389 1,467 1,415 1,437
  2023 1,359 1,224 1,275 1,112 1,267 1,352 1,379 1,382 1,378 1,585 1,251 1,532
  2024 1,329 1,288 1,433 862 1,185 1,358 1,155 1,299 1,379 1,464 1,371 1,323
  2025 1,366 1,099 1,386 1,313

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 6/30/2025
Next Release Date: 7/31/2025

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