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Rocky Mountain (PADD 4) Refinery and Blender Net Production of Normal Butane-Butylene (Thousand Barrels per Day)
Rocky Mountain (PADD 4) Refinery and Blender Net Production of Normal Butane-Butylene (Thousand Barrels per Day)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1981 2 0 0 0 -3 1 0 -1 0 -1 -2 2
  1982 -4 -3 -3 -1 -1 0 -2 -2 -2 -3 -2 -1
  1983 -2 -1 -1 0 0 0 0 0 0 -3 -2 -2
  1984 -3 -2 -1 -1 1 -2 -1 -1 0 -3 -4 -3
  1985 0 0 0 2 2 3 0 4 4 2 1 1
  1986 1 1 2 2 3 4 4 4 4 3 0 0
  1987 0 0 2 3 4 5 4 4 5 4 1 0
  1988 0 1 2 4 5 6 5 5 5 2 -1 -1
  1989 -1 -1 -1 1 3 5 4 3 4 -1 -1 -1
  1990 1 1 0 1 4 3 2 2 2 0 -3 -4
  1991 -4 -1 0 0 1 2 1 2 2 -1 -2 -5
  1992 -3 -3 2 3 4 3 3 3 1 -2 -3 -6
  1993 -5 -3 0 2 2 4 4 3 0 -3 -4 -7
  1994 -4 -4 -3 1 2 3 4 3 -2 -3 -5
  1995 -4 -5 1 2 4 3 3 3 2 -3 -7 -6
  1996 -6 -7 0 1 2 2 0 1 0 -3 -4 -6
  1997 -5 -6 -2 2 2 2 1 2 -1 -4 -4 -5
  1998 -7 -6 -2 1 3 2 2 3 -4 -6 -8
  1999 -6 -4 0 2 4 2 2 3 -1 -2 -6 -6
  2000 -4 -3 -1 7 4 3 2 3 0 -4 -7 -6
  2001 -5 -3 -2 4 2 3 2 4 0 -4 -6 -4
  2002 -5 -3 -1 3 1 3 2 3 0 -3 -3 -6
  2003 -7 -5 -1 2 5 1 2 0 -1 -4 -5 -6
  2004 -7 -3 0 1 3 2 2 2 -1 -5 -6 -11
  2005 -8 -6 1 3 3 3 2 2 -2 -5 -9 -10
  2006 -5 -4 0 4 5 4 4 4 2 -1 -3 -10
  2007 -7 -2 2 6 6 5 5 4 0 -2 -5 -8
  2008 -9 -4 1 6 5 7 4

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 9/30/2008
Next Release Date: Last Week of October 2008

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