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| Refining District Texas Gulf Coast Refinery and Blender Net Production of Isobutane-Isobutylene (Thousand Barrels per Day) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 2 | 4 | 3 | 0 | 9 | 4 | 2 | 7 | 3 | 4 | 0 | 6 |
| 1994 | 7 | 3 | 3 | 6 | -3 | 6 | 4 | 7 | 5 | 5 | 7 | 9 |
| 1995 | 1 | 6 | 6 | 12 | 7 | 8 | 7 | 7 | 2 | 6 | 8 | 7 |
| 1996 | 8 | 3 | 7 | 6 | 8 | 10 | 7 | 6 | 6 | 7 | 4 | 6 |
| 1997 | 3 | 5 | 6 | 9 | 8 | 7 | 9 | 9 | 8 | 5 | 8 | |
| 1998 | 16 | 13 | 11 | 10 | 6 | 8 | 9 | 10 | 8 | 7 | 3 | 8 |
| 1999 | 10 | 10 | 5 | 9 | 10 | 11 | 10 | 8 | 11 | 7 | 3 | 5 |
| 2000 | 7 | 5 | 6 | 6 | 6 | 6 | 9 | 11 | 5 | 6 | 4 | 5 |
| 2001 | 10 | 5 | -1 | 4 | 5 | 3 | 7 | 8 | 8 | 6 | 1 | -3 |
| 2002 | 10 | 8 | 7 | 7 | 8 | 8 | 7 | 10 | 7 | 3 | 6 | 7 |
| 2003 | -3 | 16 | 13 | 0 | 4 | 5 | -1 | 2 | 6 | 6 | 8 | 6 |
| 2004 | -4 | -1 | 3 | 4 | -2 | -3 | -6 | -4 | -4 | -6 | -1 | -3 |
| 2005 | -5 | -12 | -11 | -8 | -14 | -15 | -10 | -4 | -3 | -10 | -5 | -6 |
| 2006 | -12 | -14 | -8 | -9 | -11 | -16 | -12 | -11 | -6 | -5 | -7 | -7 |
| 2007 | 1 | 1 | -9 | -11 | -11 | -13 | -13 | -13 | -15 | -9 | -12 | -12 |
| 2008 | -4 | -3 | 0 | 4 | -1 | -8 | -5 | -5 | 2 | -6 | 0 | 4 |
| 2009 | 8 | -8 | -13 | -10 | -18 | -12 | -15 | -12 | -8 | -7 | -3 | 11 |
| 2010 | -6 | -9 | -5 | -8 | -9 | -7 | -8 | -11 | -15 | -12 | -15 | -7 |
| 2011 | -3 | 6 | 0 | -5 | -2 | -4 | -8 | -8 | -5 | -7 | -9 | -4 |
| 2012 | -2 | 1 | 10 | 5 | -6 | -8 | -6 | -7 | -12 | -4 | 0 | -5 |
| 2013 | -2 | 5 | ||||||||||
| - = 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 |