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Shale Gas
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
      2007 2008 2009 View
History
Proved Reserves as of Dec. 31
      2,018 2,336 2,022 2007-2009
Adjustments
          56 2009-2009
Revision Increases
          119 2009-2009
Revision Decreases
          181 2009-2009
Sales
          496 2009-2009
Acquisitions
          24 2009-2009
Extensions
          308 2009-2009
New Field Discoveries
          0 2009-2009
New Reservoir Discoveries in Old Fields
          0 2009-2009
Estimated Production
      90 141 145 2007-2009
- = 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: 12/30/2010
Next Release Date: 6/15/2012