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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
3,281 2,894 2,499 2,306 1,947 1,345 2007-2012
Adjustments
    -167 305 31 -98 2009-2012
Revision Increases
    149 165 140 520 2009-2012
Revision Decreases
    276 325 151 916 2009-2012
Sales
    0 553 682 0 2009-2012
Acquisitions
    16 333 409 0 2009-2012
Extensions
    15 0 0 0 2009-2012
New Field Discoveries
    0 2 0 0 2009-2012
New Reservoir Discoveries in Old Fields
    0 0 0 0 2009-2012
Estimated Production
148 122 132 120 106 108 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