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| East Coast (PADD 1) Normal Butane-Butylene Stocks at Natural Gas Processing Plants (Thousand Barrels) | ||||||||
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 52 | 53 | 54 | 62 | 67 | 58 | 52 | 61 | 35 | 41 | 11 | 5 |
| 1994 | 9 | 9 | 9 | 9 | 17 | 12 | 28 | 25 | 11 | 12 | 8 | 6 |
| 1995 | 6 | 8 | 8 | 12 | 19 | 34 | 40 | 24 | 13 | 13 | 10 | 9 |
| 1996 | 8 | 6 | 15 | 21 | 27 | 25 | 29 | 7 | 12 | 13 | 13 | 10 |
| 1997 | 8 | 4 | 9 | 5 | 7 | 17 | 17 | 20 | 16 | 15 | 16 | 9 |
| 1998 | 8 | 6 | 9 | 7 | 12 | 11 | 4 | 9 | 13 | 19 | 17 | 19 |
| 1999 | 7 | 8 | 6 | 6 | 14 | 5 | 13 | 20 | 5 | 17 | 8 | 7 |
| 2000 | 12 | 18 | 7 | 18 | 16 | 8 | 32 | 42 | 13 | 5 | 6 | 7 |
| 2001 | 4 | 9 | 6 | 6 | 7 | 7 | 18 | 29 | 11 | 6 | 6 | 8 |
| 2002 | 6 | 5 | 7 | 8 | 21 | 29 | 40 | 43 | 25 | 10 | 9 | 7 |
| 2003 | 2 | 2 | 4 | 9 | 9 | 3 | 8 | 15 | 12 | 5 | 5 | 4 |
| 2004 | 7 | 8 | 7 | 9 | 7 | 6 | 14 | 8 | 11 | 14 | 12 | 12 |
| 2005 | 7 | 10 | 9 | 6 | 13 | 9 | 6 | 3 | 5 | 6 | 4 | 12 |
| 2006 | 18 | 20 | 10 | 15 | 17 | 13 | 14 | 11 | 13 | 22 | 17 | 15 |
| 2007 | 17 | 12 | 7 | 7 | 7 | 9 | 9 | 11 | 10 | 5 | 12 | 6 |
| 2008 | 5 | 3 | 11 | 4 | 4 | 6 | 8 | 9 | 3 | 5 | 7 | 5 |
| 2009 | 5 | 5 | 4 | 5 | 6 | 6 | 3 | 2 | 3 | 5 | 4 | 5 |
| 2010 | 6 | 3 | 1 | 3 | 3 | 6 | 7 | 10 | 9 | 7 | 9 | 9 |
| 2011 | 7 | 5 | 5 | 11 | 14 | 14 | 24 | 18 | 7 | 17 | 10 | 10 |
| 2012 | 13 | 7 | 25 | 10 | 12 | 14 | 5 | 8 | 8 | 4 | 3 | 2 |
| 2013 | 18 | 24 | ||||||||||
| - = 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 |