View History:    Monthly     Annual   
Download Data (XLS File)
West Coast (PADD 5) Refinery and Blender Net Production of Isobutane-Isobutylene (Thousand Barrels per Day)
West Coast (PADD 5) Refinery and Blender Net Production of Isobutane-Isobutylene (Thousand Barrels per Day)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1984 0 0 0 0 0
  1985 0 0 1
  1986 2 0 0 -1 -1 0 2 -3 5 -1 0 1
  1987 4 4 2 5 5 6 5 4 4 3 5 2
  1988 4 4 6 5 5 5 8 4 5 2 2 0
  1989 3 2 3 2 3 2 5 0 4 -1 1 -5
  1990 1 -4 -1 0 1 1 4 3 4 0 0 -1
  1991 3 1 4 0 3 2 -1 3 -2 -5 -1 -1
  1992 2 2 2 3 7 5 3 4 3 3 -1 -2
  1993 1 0 3 2 5 4 5 5 4 2 2 3
  1994 1 5 7 3 4 8 8 7 0 1 0 0
  1995 -1 1 8 4 3 3 6 5 3 3 1 -5
  1996 -1 10 0 5 -1 7 1 5 5 -1 -7 -2
  1997 5 4 -1 6 6 9 8 4 7 2 -2 0
  1998 5 2 -2 6 4 16 10 3 6 7 -6 -3
  1999 -1 7 4 14 4 7 12 0 7 1 2 2
  2000 1 0 4 5 3 8 13 2 3 4 1 2
  2001 -4 5 1 2 3 0 1 6 3 0 0
  2002 -4 1 8 2 2 0 1 5 0 1 -1 3
  2003 -1 -1 -7 -2 -8 -3 -4 -3 0 -4 -1 -2
  2004 -4 -4 -6 -8 -10 -10 -7 -7 -6 -11 -5 -1
  2005 -7 -10 -13 -7 -11 -9 -12 -13 -13 -10 -6 -10
  2006 6 5 2 0 5 3 1 4 -2 -7 -1 0
  2007 -4 7 4 2 1 -3 0 1 -3 -3 3 -2
  2008 7 0 5 -1 -1 1 -1 4 -2 -1 -2 2
  2009 -2 10 -3 1 -1 0 -2 3 1 1 -4 3
  2010 4 1 -1 -2 0 3 1 -1 3 2 3 2
  2011 2 8 -6 7 -4 -2 -3 1 2 -5 5 -1
  2012 2 1 2 -6 -10 -1 1 -3 3 1 -7 -5
  2013 3 6 -4 5 -7 1 -3 -1 1 0 -4 -7
  2014 -3 -1 2 0 -1 0 1 -2 2 1 1 -3
  2015 3 5 6 3 -1 2 3 3 6 4 3 1
  2016 -3 4 8 3 5 3 5 6 6 2 -1 2
  2017 4 -1 4 3 3 6 3 8 6 8 0 3
  2018 2 4 13 4 3 8 6 7 8 2 1 1
  2019 2 5 6 5 2 4 4 4 3 5 5 -1
  2020 1 1 8 2 -1 4 5 5 0 2 -1 -6
  2021 -3 0 3 5 3 3 3 5 4 3 3 4
  2022 -- -- -- -- -- -- -- -- -- -- -- --
  2023 -- -- -- -- -- -- -- -- -- -- -- --


- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 2/29/2024
Next Release Date: 3/29/2024

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