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Minnesota, Wisconsin, North and South Dakota Refinery District API Gravity (Weighted Average) of Crude Oil Input to Refineries (Degree)
Minnesota, Wisconsin, North and South Dakota Refinery District 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 30.20 30.68 30.85 30.29 30.65 30.61 30.48 30.94 30.74 30.11 29.73 29.98
  1986 30.50 30.51 30.59 30.04 29.64 29.37 29.32 29.69 29.37 30.42 29.74 29.89
  1987 29.73 29.92 30.20 30.22 32.46 29.83 29.88 29.62 29.55 29.14 29.89 30.02
  1988 30.26 30.29 30.62 30.40 29.80 29.22 28.95 28.87 29.18 29.63 29.70 30.54
  1989 30.60 30.76 31.61 31.36 30.20 30.78 31.16 31.17 31.32 30.90 31.26 30.35
  1990 31.08 30.06 30.31 29.71 29.82 31.40 31.25 32.68 31.21 32.60 30.51 30.77
  1991 30.45 30.50 30.53 32.63 31.55 30.02 31.40 30.87 30.44 29.77 29.89 30.57
  1992 30.23 30.30 30.51 30.30 30.87 30.93 30.67 30.39 30.20 30.62 31.01 30.51
  1993 30.42 30.98 30.56 31.28 31.01 30.61 30.23 30.04 30.04 30.03 30.94 30.42
  1994 29.80 29.80 30.81 29.38 30.68 30.71 31.56 29.80 30.84 30.76 29.76 30.60
  1995 30.30 32.46 33.34 29.62 30.74 31.34 30.59 28.46 29.26 29.10 28.63 28.86
  1996 29.75 29.74 29.82 29.69 30.77 28.90 29.57 29.58 29.12 29.31 28.84 30.13
  1997 32.16 31.01 31.51 29.05 28.47 28.78 28.71 28.10 28.34 27.29 28.47 28.70
  1998 27.98 27.84 29.04 29.25 28.94 28.58 28.24 28.98 28.97 28.90 29.21 29.06
  1999 28.95 29.04 29.68 30.60 31.07 30.46 29.33 29.63 30.59 29.53 28.92 29.05
  2000 28.36 29.52 29.07 30.64 29.09 30.02 30.33 28.20 27.86 27.88 28.49 26.13
  2001 28.16 27.96 27.96 28.15 28.11 28.59 29.01 28.56 29.14 28.11 27.75 27.51
  2002 27.59 27.74 27.95 28.20 28.46 27.29 27.64 29.52 27.56 27.61 27.95 27.84
  2003 27.52 27.15 26.99 27.04 26.74 26.97 26.80 27.48 28.89 27.56 26.81 25.76
  2004 25.83 26.55 26.95 26.06 26.97 26.70 27.43 28.25 29.37 27.52 26.91 26.12
  2005 25.69 26.08 26.44 26.67 26.58 27.02 26.95 27.58 28.13 27.72 27.34 26.84
  2006 26.17 25.85 26.30 26.63 26.69 27.71 26.85 27.15 27.55 26.71 26.59 26.82
  2007 26.92 26.75 26.33 26.65 28.06 26.61 25.84 25.79 26.87 26.78 26.80 26.31
  2008 26.69 26.69 27.48 28.75 26.76 25.74 26.93 26.76 27.41 27.56 26.34 27.11
  2009 26.34 26.98 26.20 27.98 30.01 27.55 26.56 26.24 29.23 28.95 27.26 27.92
  2010 27.69 27.76 26.02 26.94 26.98 28.11 28.58 27.47 27.87 27.63 27.85 27.62
  2011 27.38 26.45 27.35 27.50 28.17 29.28 27.95 27.71 28.70 28.02 28.05 28.47
  2012 27.42 27.16 26.57 26.61 28.24 27.82 28.14 28.33 28.40 28.48 28.89 28.90
  2013 28.68 28.63 28.29 27.92 28.61 27.82 28.55 28.58 30.48 29.05 28.33 28.43
  2014 28.79 29.51 29.12 29.73 31.73 29.76 28.57 29.29 28.58 28.60 30.74 30.24
  2015 30.47 30.03 30.01 29.46 30.11 30.42 30.01 29.42 30.44 31.38 30.17 29.86
  2016 30.37 29.24 29.86 31.62 31.47 30.62 29.59 28.55 27.99 29.48 29.68 29.22
  2017 29.02 28.78 28.65 25.98 25.93 28.29 29.60 28.67 28.80 27.84 28.30 27.92
  2018 28.32 27.61 27.90 27.79 27.61 27.91 28.23 28.13 28.49 28.28 27.41 27.96
  2019 28.24 28.76 28.41 29.93 28.53 28.31 29.20 28.40 31.12 31.21 30.05 27.20
  2020 27.88 27.51 26.56 26.46 25.67 24.60 25.24 26.49 25.70 25.59 25.59 27.90
  2021 23.98 25.94 25.61 26.83 27.77 27.81 28.83 28.46 27.90 27.75 27.58 27.04
  2022 27.04 26.32 27.01 27.57 28.21 28.71 27.85 28.41 29.67 28.59 27.54 26.63
  2023 26.70 28.00 28.37 29.16 28.05 27.56 28.09 27.72 28.74 28.94 28.71 28.22
  2024 27.35

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 3/29/2024
Next Release Date: 4/30/2024

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