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| East Coast (PADD 1) Refinery and Blender Net Production of Isobutane-Isobutylene (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 6 | -6 | ||||||||||
| 1986 | -10 | -50 | -25 | -48 | -83 | -69 | -79 | -62 | -31 | -97 | -72 | -93 |
| 1987 | 9 | -18 | 48 | -5 | 6 | 54 | 59 | 45 | 40 | 72 | 21 | 25 |
| 1988 | 17 | -35 | 13 | 68 | 122 | -13 | 60 | 16 | 32 | 45 | 8 | 2 |
| 1989 | 45 | 8 | -34 | 11 | 34 | 52 | 35 | 31 | 79 | 107 | 5 | -13 |
| 1990 | -44 | -50 | -32 | -33 | -83 | -109 | 6 | -70 | -44 | -77 | -50 | -65 |
| 1991 | -42 | -59 | -58 | -36 | -81 | -42 | -78 | -17 | -24 | -74 | -47 | -28 |
| 1992 | -38 | -31 | 5 | 23 | 41 | -79 | -60 | -47 | -46 | -63 | -14 | -43 |
| 1993 | 11 | -38 | -95 | -29 | -8 | -97 | -101 | -48 | -79 | 30 | -54 | -34 |
| 1994 | 24 | 30 | -41 | -105 | -23 | -119 | -95 | -54 | -55 | -77 | 42 | -2 |
| 1995 | -56 | -73 | -71 | -79 | -82 | -46 | -44 | 15 | -6 | 42 | -16 | -6 |
| 1996 | -19 | -48 | -38 | 84 | 73 | 69 | 41 | 10 | 82 | 6 | -59 | 2 |
| 1997 | -26 | 107 | -157 | -57 | -45 | -114 | -122 | -144 | -12 | -67 | -4 | -22 |
| 1998 | -277 | -209 | -24 | 25 | -147 | -89 | -114 | -69 | -158 | -130 | -153 | -72 |
| 1999 | -101 | -108 | -197 | -144 | -79 | -184 | -1 | -207 | -176 | -219 | -111 | -96 |
| 2000 | -133 | 49 | -135 | -93 | -105 | 28 | -55 | -161 | -87 | -161 | -212 | -84 |
| 2001 | -108 | -27 | -164 | -173 | -155 | -288 | -193 | -56 | -97 | -207 | -202 | -140 |
| 2002 | -148 | -119 | -159 | -129 | -95 | -102 | -60 | -249 | -162 | -118 | -143 | -79 |
| 2003 | -66 | -138 | -171 | -36 | -62 | 77 | -299 | -169 | -190 | -175 | -157 | -153 |
| 2004 | -66 | -132 | -365 | -83 | -25 | -113 | -97 | -65 | -177 | -182 | -204 | -137 |
| 2005 | -122 | -53 | -156 | -78 | -78 | -143 | -78 | -200 | -212 | -33 | -178 | -213 |
| 2006 | 59 | 182 | -165 | -12 | 301 | 48 | 10 | -84 | -28 | 22 | -51 | 48 |
| 2007 | 72 | -82 | 92 | 48 | 72 | -2 | 267 | 57 | 156 | 36 | -20 | 73 |
| 2008 | 106 | -14 | 149 | 152 | 73 | 135 | 62 | -7 | 241 | 40 | -52 | 201 |
| 2009 | -74 | -23 | -14 | -114 | 115 | 86 | -66 | 153 | -202 | 106 | 137 | 6 |
| 2010 | -11 | 3 | -222 | 111 | 130 | 49 | -65 | -87 | -59 | -112 | -81 | -120 |
| 2011 | -13 | -72 | -71 | -194 | -2 | -74 | -171 | -137 | -221 | -31 | 4 | 7 |
| 2012 | 70 | 84 | -54 | -15 | -26 | 28 | 40 | -79 | -89 | -58 | -92 | -57 |
| 2013 | -76 | -183 | ||||||||||
| - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. |
| Release Date: 4/29/2013 |
| Next Release Date: Last Week of May 2013 |