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Refining District Appalachian No. 1 Gas Plant Production of Isobutane-Isobutylene (Thousand Barrels)
Refining District Appalachian No. 1 Gas Plant Production of Isobutane-Isobutylene (Thousand Barrels)
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  1993 38 37 38 30 25 35 32 34 34 37 39 36
  1994 30 35 36 34 31 28 35 33 38 37 37 35
  1995 37 30 37 34 32 36 33 27 40 40 38 38
  1996 30 26 30 29 22 26 29 16 28 29 29 32
  1997 38 32 39 34 36 38 40 41 32 39 35 38
  1998 38 35 40 35 33 37 33 41 36 39 42 44
  1999 42 43 43 41 39 23 36 39 37 41 41 44
  2000 36 36 43 40 38 40 43 40 33 26 41 42
  2001 35 34 40 37 37 41 43 42 40 41 40 40
  2002 40 37 39 35 42 40 45 46 42 43 32 39
  2003 29 32 38 38 43 31 20 25 42 44 23 25
  2004 28 38 31 44 48 70 40 73 47 77 71 70
  2005 65 61 67 58 69 44 37 44 42 44 44 45
  2006 49 52 72 52 72 64 65 51 52 47 52 53
  2007 52 70 56 57 59 51 52 48 49 74 49 50
  2008 49 47 49 46 50 47 52 53 40 52 53 50
  2009 50 45 53 53 51 52 55 56 51 60 57 55
  2010 60 56 66 61 67 68 74 72 61 75 84 79
  2011 78 104 126 129 134 132 149 147 143 148 150 169
  2012 172 157 166 163 167 175 177 192 193 200 220 248
  2013 242 250

- = 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

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