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Download Data (XLS File) |
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| West Coast (PADD 5) Isobutane-Isobutylene Stock Change (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | -71 | -45 | -101 | -39 | 23 | 173 | 105 | 11 | 39 | -66 | 35 | -82 |
| 1982 | -48 | -51 | -30 | -93 | -73 | 18 | -21 | 20 | -2 | 17 | -22 | 60 |
| 1983 | 35 | -32 | 24 | 19 | -20 | 60 | 120 | -124 | 28 | -32 | -23 | 37 |
| 1984 | -65 | -63 | -30 | -18 | 108 | 0 | 24 | 14 | -38 | -25 | 3 | 24 |
| 1985 | -10 | 1 | 27 | -41 | 14 | 10 | 13 | -42 | -29 | 12 | -87 | 96 |
| 1986 | -86 | -13 | 238 | 135 | -90 | -130 | 94 | -103 | -20 | -75 | 30 | -16 |
| 1987 | -38 | 11 | 15 | -23 | 47 | 26 | 19 | 54 | 23 | -4 | 38 | -19 |
| 1988 | 41 | -43 | -7 | -71 | -68 | 18 | 47 | 37 | 699 | -327 | -155 | -119 |
| 1989 | 65 | -17 | -134 | 164 | 14 | 36 | 38 | 44 | 10 | -122 | -57 | -145 |
| 1990 | 87 | -27 | -57 | 17 | 89 | -17 | 86 | -71 | 34 | -32 | -95 | -24 |
| 1991 | 114 | 33 | 80 | -121 | 64 | 70 | -56 | 76 | -32 | -98 | -47 | -22 |
| 1992 | 73 | -2 | -34 | -14 | 107 | 54 | -27 | 28 | 25 | -32 | -115 | -28 |
| 1993 | 79 | -13 | 124 | 9 | 63 | 70 | -3 | -50 | -32 | 18 | -51 | 89 |
| 1994 | -132 | -20 | 8 | -11 | -32 | 54 | 118 | 67 | -115 | -68 | -24 | -30 |
| 1995 | -10 | -7 | 74 | -93 | 21 | 51 | 77 | 10 | 72 | -61 | -33 | -116 |
| 1996 | -16 | 50 | -94 | 173 | -215 | 218 | -115 | 62 | 103 | 45 | -166 | -120 |
| 1997 | -25 | 124 | -51 | 15 | 40 | 87 | 35 | -76 | 132 | 76 | -80 | -135 |
| 1998 | -14 | 93 | -51 | -81 | -20 | 140 | 11 | -73 | -25 | 76 | -159 | -45 |
| 1999 | -47 | 130 | -1 | 47 | -72 | 203 | -152 | 84 | -31 | -23 | -175 | |
| 2000 | -97 | 113 | 7 | 88 | -35 | 54 | 225 | -117 | -142 | 38 | 33 | 27 |
| 2001 | -138 | -100 | 145 | 26 | 104 | -66 | 26 | -86 | -13 | 34 | -17 | -91 |
| 2002 | -71 | 6 | 116 | 43 | 14 | 28 | -101 | 41 | -10 | 144 | -180 | -116 |
| 2003 | 22 | 66 | 100 | 98 | -125 | 136 | -98 | 90 | 127 | 49 | -26 | -143 |
| 2004 | -17 | -92 | -80 | 36 | 91 | 7 | -7 | 51 | 143 | -146 | 28 | 36 |
| 2005 | -18 | 53 | -110 | 58 | -141 | 82 | -43 | 68 | 119 | -8 | -68 | -186 |
| 2006 | 93 | 75 | 22 | -6 | 79 | 44 | -34 | -115 | -22 | -175 | 75 | 6 |
| 2007 | -130 | 169 | 34 | 121 | 58 | -94 | -37 | -5 | 15 | -121 | 37 | -24 |
| 2008 | 293 | -188 | 144 | -121 | 4 | -107 | -62 | 92 | -69 | 1 | -105 | 81 |
| 2009 | 14 | 241 | -127 | -33 | 38 | 30 | -91 | 70 | -78 | 7 | -63 | 18 |
| 2010 | 128 | 15 | -79 | 87 | -72 | 72 | -36 | -95 | 32 | 70 | -44 | -25 |
| 2011 | -17 | 132 | -85 | 236 | -185 | 11 | 16 | -58 | 27 | -228 | 191 | -6 |
| 2012 | 10 | -25 | 91 | 99 | -78 | -26 | 82 | -91 | 57 | 23 | -158 | -24 |
| 2013 | 57 | 243 | -98 | |||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 5/30/2013 |
| Next Release Date: Last Week of June 2013 |