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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
23,304 34,428 60,644 97,449 131,616 129,396 2007-2012
Adjustments
    1,690 7,579 1,584 526 2009-2012
Revision Increases
    6,363 10,661 25,993 17,469 2009-2012
Revision Decreases
    3,642 9,491 23,455 42,706 2009-2012
Sales
    563 1,685 22,694 1,785 2009-2012
Acquisitions
    665 4,290 27,038 1,807 2009-2012
Extensions
    22,332 29,081 32,764 32,359 2009-2012
New Field Discoveries
    868 557 232 353 2009-2012
New Reservoir Discoveries in Old Fields
    1,613 1,149 699 128 2009-2012
Estimated Production
1,293 2,116 3,110 5,336 7,994 10,371 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