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Note: These data are available in spreadsheet format by clicking the ''Download Series History'' link on the previous page (with drop-down menu bar at top).
 View History:    Monthly     Annual   
Gulf Coast (PADD 3) Isobutane-Isobutylene Field Production (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1981 3,007 2,628 2,855 3,006 3,045 3,095 3,163 3,052 2,962 2,944 2,922 2,506
  1982 2,685 2,366 2,798 2,472 2,921 2,885 2,734 2,911 2,949 2,854 2,521 2,586
  1983 2,427 2,251 2,480 2,709 2,447 2,430 2,598 2,304 2,408 2,524 2,608 2,414
  1984 2,128 2,152 2,242 2,200 2,245 2,155 2,200 2,299 2,115 2,154 1,994 2,216
  1985 2,383 2,193 2,975 3,162 3,276 3,274 3,421 2,456 2,820 3,150 3,294 2,869
  1986 2,619 2,683 2,907 2,868 3,164 2,875 3,432 3,193 3,010 3,161 3,261 2,646
  1987 2,893 2,471 2,749 3,421 3,403 3,386 3,494 3,472 3,438 3,545 3,175 3,338
  1988 3,419 2,953 3,241 3,134 3,299 3,237 3,419 3,402 3,324 3,269 3,101 2,952
  1989 3,166 3,267 3,710 3,736 3,861 3,458 3,320 3,586 3,187 3,584 3,457 3,034
  1990 2,963 3,472 3,715 3,555 3,792 3,798 3,939 3,867 3,656 3,798 2,828 2,801
  1991 3,049 3,137 3,283 3,514 4,079 3,886 4,098 4,202 4,053 4,124 3,424 3,809
  1992 4,018 3,837 4,163 3,637 4,164 3,968 4,262 4,431 4,830 4,798 4,652 4,447
  1993 3,914 3,467 4,407 4,792 5,396 5,177 4,590 4,444 4,321 3,956 3,829 4,100
  1994 4,703 4,373 4,491 4,353 4,658 4,732 5,123 5,557 4,995 3,910 4,236 3,887
  1995 4,483 3,413 3,683 5,081 5,213 4,510 4,458 3,979 4,326 4,337 4,038 3,693
  1996 4,194 3,698 4,517 4,835 4,851 4,932 4,733 4,505 4,247 4,012 4,017 3,517
  1997 3,606 3,687 4,304 4,665 3,977 4,175 4,360 4,459 4,246 4,562 3,960 4,686
  1998 4,401 3,657 4,093 4,268 3,974 4,205 4,117 4,193 3,879 4,315 4,280 4,149
  1999 4,118 4,229 4,356 4,267 4,379 4,335 4,501 4,432 4,240 4,563 4,179 4,431
  2000 4,486 4,438 4,417 4,249 4,462 4,647 4,841 4,617 4,359 4,494 4,209 3,852
  2001 3,403 3,811 4,456 4,423 5,213 4,821 4,801 4,898 4,666 4,917 4,682 4,730
  2002 4,519 3,961 4,588 4,578 4,964 4,663 4,701 5,557 4,554 5,151 5,337 4,590
  2003 4,351 4,013 4,528 4,754 4,217 3,469 4,264 4,347 4,361 4,144 3,905 4,030
  2004 3,912 3,779 4,115 3,881 3,962 3,599 4,054 3,572 3,328 3,484 3,554 3,392
  2005 3,362 3,054 3,362 3,341 4,036 3,957 4,778 4,481 3,231 3,786 3,430 3,505
  2006 3,530 3,364 4,048 3,433 3,704 3,504 3,752 3,812 3,636 3,604 3,514 2,984
  2007 3,693 3,791 3,971 4,146 4,027 3,574 3,947 3,994 4,253 3,935 3,717 3,892
  2008 3,968 3,883 4,495 3,782


Updated on 6/26/2008
Source: U.S. Energy Information Administration
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