View History:    Monthly     Annual   
Download Data (XLS File)
West Coast (PADD 5) Isobutane-Isobutylene Stocks at Bulk Terminals (Thousand Barrels)
West Coast (PADD 5) Isobutane-Isobutylene Stocks at Bulk Terminals (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 184 171 178 202 202 237 267 233 264 244 211 207
  1994 173 160 162 160 137 157 182 198 209 206 186 166
  1995 132 132 134 138 188 238 223 202 212 197 144 115
  1996 103 41 15 28 30 43 36 71 72 74 48 24
  1997 7 3 6 20 39 51 62 73 145 186 171 140
  1998 85 42 54 19 28 63 38 117 126 102 76 39
  1999 14 14 32 45 73 74 88 100 157 151 86 32
  2000 3 1 1 11 28 53 77 98 52 69 59 41
  2001 3 2 2 17 28 49 145 137 55 56 48 12
  2002 4 3 7 27 44 113 113 110 157 162 69 15
  2003 5 4 5 11 16 70 88 123 135 147 115 79
  2004 51 19 19 19 44 46 60 109 119 112 107 49
  2005 3 1 1 12 27 62 42 56 119 119 104 77
  2006 45 16 3 5 8 66 89 16 34 35 25 14
  2007 4
  2008 1 7 5 7 10 13 15 15 15 17 11
  2009 6 2 1
  2010 26 19 15 45 3 47 30 13 39 46 29 29
  2011 24 19 30 35 16 37 73 21 25 16 31 19
  2012 27 19 20 62 30 23 53 46 28 26 21 20
  2013 5 25 27 20 4 50 24 13 22 18 16 16
  2014 1 1 3 8 5 5 23 11 9 10 6 24
  2015 4 26 10 18 17 13 21 23 5 6 2 5
  2016 14 8 2 17 7 1 1
  2020 3 3 3 4
  2021 4 6 6 6 5 5

- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Release Date: 4/28/2023
Next Release Date: 5/31/2023

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