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

- = 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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