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Shale Gas
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
    2007 2008 2009 2010 View
History
Proved Reserves as of Dec. 31
    8,099 11,408 13,691 16,032 2007-2010
Adjustments
        657 105 2009-2010
Revision Increases
        928 643 2009-2010
Revision Decreases
        587 405 2009-2010
Sales
        5 0 2009-2010
Acquisitions
        21 6 2009-2010
Extensions
        2,223 3,045 2009-2010
New Field Discoveries
        0 0 2009-2010
New Reservoir Discoveries in Old Fields
        0 0 2009-2010
Estimated Production
    437 769 954 1,053 2007-2010
- = 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: 8/2/2012
Next Release Date: 8/30/2013