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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
8,700 10,756 12,573 10,276 9,260 9,580 2007-2013
Adjustments
  179 533 42 -483 378 2009-2013
Revision Increases
  580 1,044 3,005 200 1,092 2009-2013
Revision Decreases
  469 191 5,864 1,111 616 2009-2013
Sales
  53 83 1,259 381 629 2009-2013
Acquisitions
  59 32 1,489 281 20 2009-2013
Extensions
  2,389 1,199 891 1,054 431 2009-2013
New Field Discoveries
  0 0 11 0 0 2009-2013
New Reservoir Discoveries in Old Fields
  14 8 0 50 263 2009-2013
Estimated Production
586 643 725 612 626 619 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