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U.S. Field Production of Isobutane (Thousand Barrels)
U.S. Field Production of Isobutane (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1981 3,698 3,198 3,482 3,672 3,721 3,648 3,703 3,651 3,537 3,581 3,497 3,158
  1982 3,350 2,882 3,386 3,106 3,507 3,415 3,285 3,511 3,483 3,418 3,181 3,253
  1983 3,112 2,761 3,060 3,217 2,960 2,996 3,094 2,856 2,933 3,108 3,228 3,065
  1984 2,874 2,855 3,019 3,022 3,104 3,002 3,071 3,171 2,998 3,088 2,945 3,119
  1985 3,297 3,059 3,874 4,025 4,248 4,095 4,258 3,397 3,781 4,197 4,303 3,936
  1986 3,598 3,519 3,790 3,779 4,135 3,777 4,333 4,036 3,842 4,079 4,182 3,552
  1987 3,774 3,357 3,829 4,378 4,472 4,471 4,608 4,591 4,548 4,710 4,234 4,430
  1988 4,539 4,116 4,514 4,318 4,500 4,365 4,569 4,558 4,409 4,395 4,239 4,025
  1989 4,364 4,333 4,875 4,819 4,986 4,525 4,482 4,719 4,232 4,697 4,513 3,928
  1990 4,042 4,550 4,894 4,624 4,956 4,814 5,040 4,948 4,667 4,833 3,940 3,933
  1991 4,335 4,452 4,722 4,886 5,628 5,259 5,572 5,638 5,417 5,596 4,815 5,191
  1992 5,439 5,211 5,642 5,136 5,678 5,437 5,724 5,956 6,309 6,363 6,217 5,948
  1993 5,301 4,850 6,013 6,384 6,941 6,665 6,061 5,955 5,821 5,527 5,095 5,444
  1994 6,044 5,727 5,991 5,591 5,958 6,061 6,583 7,029 6,432 5,142 5,459 5,299
  1995 5,848 4,652 5,122 6,382 6,665 5,851 5,827 5,274 5,659 5,705 5,418 5,152
  1996 5,578 5,079 6,054 6,256 6,474 6,481 6,325 6,241 5,645 5,696 5,509 4,869
  1997 5,002 5,054 6,072 6,498 5,888 6,042 5,970 5,873 5,730 6,002 5,389 6,141
  1998 5,503 5,096 5,481 5,652 5,387 5,805 5,584 5,658 5,376 5,793 5,556 5,288
  1999 5,276 5,331 5,785 5,795 5,959 5,802 5,987 5,783 5,624 5,871 5,458 5,607
  2000 5,618 5,620 5,796 5,534 6,009 6,240 6,282 5,983 5,672 5,750 5,425 5,020
  2001 4,588 5,033 5,903 5,985 6,883 6,274 6,384 6,502 6,208 6,494 6,092 6,090
  2002 5,810 5,443 6,017 5,971 6,339 5,932 6,065 6,903 5,842 6,525 6,593 6,019
  2003 5,862 5,375 5,884 6,252 5,748 4,944 5,598 5,783 5,737 5,471 5,099 5,221
  2004 5,053 4,952 5,633 5,459 5,443 4,966 5,451 5,231 4,757 4,883 4,955 4,705
  2005 4,613 4,272 4,715 4,813 5,721 5,368 6,300 6,052 4,694 5,283 4,806 4,865
  2006 4,779 4,545 5,484 5,013 5,331 5,001 5,043 5,172 4,990 4,819 4,819 4,361
  2007 4,969 5,160 5,439 5,604 5,679 5,169 5,444 5,369 5,750 5,305 5,038 5,355
  2008 5,609 5,187 6,154 5,228 5,532 5,108 5,328 5,284 3,905 5,328 5,417 5,183
  2009 5,639 5,071 5,284 5,426 6,145 6,090 6,377 5,988 5,663 6,047 5,641 5,333
  2010 5,091 4,813 5,563 5,393 6,170 6,244 6,151 6,093 5,618 5,925 5,343 5,843
  2011 5,579 4,974 6,589 6,440 6,704 6,260 6,388 6,708 6,614 6,979 6,881 6,867
  2012 6,302 5,806 6,183 6,958 6,909 6,701 7,429 7,298 7,051 7,243 7,355 7,218
  2013 7,191 6,075 7,320 7,532 7,660 7,304 8,169 8,335 7,687 7,181 7,677 7,635
  2014 6,876 6,453 7,863 8,101 8,593 8,663 8,858 8,901 8,015 8,578 8,332 8,668
  2015 8,465 7,312 8,717 8,556 9,461 9,334 9,821 9,577 9,530 10,040 9,325 9,739
  2016 10,630 9,629 10,499 10,547 11,003 10,764 10,927 11,074 10,534 9,638 9,651 10,753
  2017 10,075 9,038 9,849 10,646 11,674 11,295 11,831 11,161 10,675 10,641 10,492 11,212
  2018 11,179 10,144 11,654 11,550 12,372 12,321 12,596 12,708 11,706 11,284 11,205 12,417
  2019 12,311 11,275 12,588 12,326 13,028 12,438 12,783 13,220 13,007 13,464 12,792 13,347
  2020 13,724 12,956 14,254 12,383 11,386 12,419 13,652 13,764 13,254 13,474 13,067 13,189
  2021 12,843 8,836 11,920 12,149 12,658 13,027 13,640 13,731 13,066 13,961 12,847 12,948
  2022 12,095 10,828 13,242 13,061 13,119 12,597 13,481 13,623 13,369 14,113 13,465 13,318
  2023 14,138 12,338 14,145 13,379 13,827 13,688 13,888 13,607 13,502 13,981 13,859 14,165
  2024 13,357


- = 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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