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Rocky Mountains (PADD 4) API Gravity (Weighted Average) of Crude Oil Input to Refineries (Degree)
Rocky Mountains (PADD 4) API Gravity (Weighted Average) of Crude Oil Input to Refineries (Degree)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1985 36.65 37.02 37.36 37.36 37.13 36.56 36.23 36.58 36.39 36.38 36.03 35.86
  1986 36.20 36.29 36.31 36.34 36.64 36.08 36.18 36.12 35.97 36.42 36.29 36.05
  1987 36.28 36.28 37.16 36.95 36.25 35.91 36.07 36.05 35.81 36.07 35.79 36.12
  1988 36.32 35.88 36.34 36.60 36.09 35.57 35.61 35.69 35.95 36.34 36.37 36.46
  1989 36.61 36.16 35.48 36.61 36.33 35.97 35.70 35.64 35.45 36.22 35.81 36.14
  1990 36.38 35.69 36.00 35.49 35.60 35.35 35.38 34.59 35.60 34.95 34.80 35.64
  1991 35.32 35.71 35.86 36.28 36.19 35.74 35.33 35.11 35.36 35.61 35.66 36.08
  1992 35.86 35.75 36.01 35.64 35.40 34.36 34.24 35.03 35.08 35.00 35.01 34.75
  1993 34.60 34.57 34.93 34.78 35.16 35.29 35.06 34.92 33.57 33.39 34.01 33.90
  1994 34.02 33.57 34.55 33.55 33.96 34.48 34.49 34.17 34.47 34.68 34.61 35.25
  1995 35.13 35.40 34.69 35.41 35.33 34.61 34.47 35.08 34.60 34.99 34.90 35.13
  1996 34.73 34.40 34.38 34.37 34.31 34.77 32.63 32.36 31.78 32.80 34.11 33.39
  1997 32.87 33.39 34.33 34.68 33.33 32.96 32.94 32.55 33.00 32.26 32.60 32.63
  1998 32.78 32.99 33.52 33.39 34.43 33.17 31.59 32.30 33.34 33.71 33.85 33.23
  1999 33.73 33.62 34.32 34.24 34.09 33.26 33.65 34.61 34.47 33.59 34.65 34.99
  2000 34.12 34.27 33.52 33.71 32.85 32.60 32.64 32.94 33.16 32.42 33.05 32.86
  2001 33.07 33.43 33.42 33.79 33.53 33.35 32.88 32.42 32.60 33.66 33.00 33.31
  2002 32.93 32.80 33.48 32.89 33.16 33.00 32.99 32.82 33.06 32.97 32.92 32.88
  2003 32.93 33.18 32.70 33.45 34.11 32.68 32.31 32.51 32.60 32.57 32.51 32.34
  2004 33.07 32.76 32.67 32.53 32.69 31.89 32.52 32.72 32.60 32.43 32.35 32.34
  2005 32.26 32.38 32.84 32.90 32.24 32.57 32.92 32.32 31.88 32.10 32.67 32.78
  2006 32.53 32.92 34.58 34.28 33.29 32.79 32.55 32.43 32.77 32.56 32.35 32.56
  2007 32.69 32.26 32.93 33.35 33.09 32.28 31.74 32.56 32.74 32.02 32.91 32.48
  2008 32.77 32.57 32.79 33.36 32.02 32.64 32.85 32.40 32.32 31.56 32.19 31.84
  2009 31.98 32.32 32.65 33.42 32.65 33.23 33.28 33.31

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 10/29/2009
Next Release Date: Last Week of November 2009

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