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Shale Gas
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2008 2009 2010 2011 2012 2013 View
History
Proved Reserves as of Dec. 31
173 1,161 4,381 6,584 4,172 4,633 2007-2013
Adjustments
  40 1,968 26 -225 564 2009-2013
Revision Increases
  422 1,206 2,322 999 513 2009-2013
Revision Decreases
  8 1,319 1,860 2,907 283 2009-2013
Sales
  0 88 879 2 4 2009-2013
Acquisitions
  0 150 1,673 0 0 2009-2013
Extensions
  541 1,520 1,303 209 80 2009-2013
New Field Discoveries
  0 0 0 0 0 2009-2013
New Reservoir Discoveries in Old Fields
  21 2 0 0 0 2009-2013
Estimated Production
3 28 219 382 486 409 2007-2013
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Illinois, Indiana, Maryland, Missouri, Nebraska, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/4/2014
Next Release Date: 12/31/2015