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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
    2,018 2,336 2,022 2,435 2007-2010
Adjustments
        56 267 2009-2010
Revision Increases
        119 273 2009-2010
Revision Decreases
        181 242 2009-2010
Sales
        496 0 2009-2010
Acquisitions
        24 0 2009-2010
Extensions
        308 255 2009-2010
New Field Discoveries
        0 0 2009-2010
New Reservoir Discoveries in Old Fields
        0 0 2009-2010
Estimated Production
    90 141 145 140 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