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Shale Gas
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2007 2008 2009 2010 2011 2012 View
History
Proved Reserves as of Dec. 31
6 858 9,307 20,070 21,950 13,523 2007-2012
Adjustments
    131 2,347 -172 241 2009-2012
Revision Increases
    636 1,856 2,002 1,422 2009-2012
Revision Decreases
    826 1,878 3,882 10,558 2009-2012
Sales
    3 11 3,782 17 2009-2012
Acquisitions
    0 115 4,291 6 2009-2012
Extensions
    7,183 9,346 5,367 2,683 2009-2012
New Field Discoveries
    244 48 0 0 2009-2012
New Reservoir Discoveries in Old Fields
    1,377 172 140 0 2009-2012
Estimated Production
1 23 293 1,232 2,084 2,204 2007-2012
- = 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: 4/10/2014
Next Release Date: 4/30/2015