View History:    Monthly     Annual   
Download Data (XLS File)
Rocky Mountain (PADD 4) Imports of Normal Butane (Thousand Barrels)
Rocky Mountain (PADD 4) Imports of Normal Butane (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1995 137 57 49 27 12 29 47 22 69 78 130 266
  1996 204 143 91 76 31 13 60 13 121 125 201 199
  1997 158 126 22 25 34 13 25 51 69 138 147 204
  1998 191 131 66 37 20 45 43 7 22 71 70 51
  1999 51 2 6 1 4 6 2 40 94 197 199 162
  2000 434 127 91 38 83 41 94 105 92 90 141 165
  2001 135 50 82 33 60 47 89 97 121 121 102 120
  2002 139 43 50 0 24 77 54 80 89 91 111 100
  2003 113 59 24 0 0 41 78 75 118 132 90 122
  2004 131 37 77 28 40 39 45 68 76 34 83 85
  2005 92 17 16 27 14 58 30 47 37 81 64 77
  2006 127 64 74 8 1 45 9 15 30 49 55 98
  2007 63 21 22 2 32 17 18 51 83 73
  2008 52 34 44 17 34 40 34
  2009 47 25 7 1 10 15 34
  2010 13 65 57 59 74 74 73 65 57 1 1 1
  2011 4 1 1 1 2
  2012 15 16 14 9 17 19 16 25 40 40 44
  2013 46 21 28 7 48 1 32 47 44 19 15
  2014 23 25 7 17 2 2 4 2
  2015 1 3 9 6 4
  2016 3 1 2
  2017 31 15 9 9 4 17 8 4 4
  2018 12 29 11 6 31 25 15 43 80 60
  2019 159 20 67 23 2 2 73 77 110 46 16
  2020 19 42 58 19 48 33 34 67 38 59 145 205
  2021 177 98 47 35 35 33 104 61 26 70 83 166
  2022 73 29 20 12 5 16 42 29 36
  2023 89 9 1 1 4 1 3
  2024 19 10 12 4 21 1 16 83 32 77 99
  2025 42 28 22 73 93 42 17 38 52

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 11/28/2025
Next Release Date: 12/31/2025

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