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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
      23,304 34,428 60,644 2007-2009
Adjustments
          1,690 2009-2009
Revision Increases
          6,363 2009-2009
Revision Decreases
          3,642 2009-2009
Sales
          563 2009-2009
Acquisitions
          665 2009-2009
Extensions
          22,332 2009-2009
New Field Discoveries
          868 2009-2009
New Reservoir Discoveries in Old Fields
          1,613 2009-2009
Estimated Production
      1,293 2,116 3,110 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