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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
    6 858 9,307 20,070 2007-2010
Adjustments
        131 2,347 2009-2010
Revision Increases
        636 1,856 2009-2010
Revision Decreases
        826 1,878 2009-2010
Sales
        3 11 2009-2010
Acquisitions
        0 115 2009-2010
Extensions
        7,183 9,346 2009-2010
New Field Discoveries
        244 48 2009-2010
New Reservoir Discoveries in Old Fields
        1,377 172 2009-2010
Estimated Production
    1 23 293 1,232 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