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| Refining District Minnesota-Wisconsin-North Dakota-South Dakota Refinery and Blender Net Production of Normal Butane (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1994 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1995 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1996 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1997 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1998 | W | W | W | W | W | W | W | W | W | W | W | W |
| 1999 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2000 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2001 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2002 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2003 | W | W | W | W | W | W | W | W | W | W | W | W |
| 2004 | -427 | -274 | -122 | 92 | 230 | 176 | 205 | 196 | 2 | -343 | -398 | -495 |
| 2005 | -441 | -241 | -116 | 103 | 218 | 142 | 169 | 159 | -70 | -362 | -470 | -438 |
| 2006 | -341 | -202 | -42 | 94 | 185 | 171 | 161 | 143 | -100 | -379 | -515 | -530 |
| 2007 | -376 | -330 | -29 | 188 | 208 | 203 | 217 | 154 | -49 | -320 | -534 | -504 |
| 2008 | -331 | -308 | -94 | 106 | 198 | 235 | 191 | 188 | -25 | -370 | -632 | -536 |
| 2009 | -423 | -280 | -153 | 137 | 281 | 204 | 203 | 173 | -119 | -386 | -666 | -546 |
| 2010 | -501 | -322 | -95 | 95 | 190 | 227 | 171 | 167 | -114 | -411 | -592 | -484 |
| 2011 | -501 | -329 | -35 | 71 | 161 | 190 | 162 | 125 | -105 | -216 | -517 | -509 |
| 2012 | -389 | -350 | -121 | 180 | 222 | 147 | 144 | 144 | -137 | -400 | -591 | -581 |
| 2013 | -573 | -396 | ||||||||||
| - = 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 |