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Shale Gas
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2012 2013 2014 2015 2016 2017 View
History
Proved Reserves as of Dec. 31
216 229 482 360 213 258 2007-2017
Adjustments
-7 -4 196 -31 -139 3 2009-2017
Revision Increases
18 31 64 31 39 58 2009-2017
Revision Decreases
2 28 51 86 26 1 2009-2017
Sales
3 0 1 0 5 0 2009-2017
Acquisitions
3 0 0 0 1 0 2009-2017
Extensions and Discoveries
        2 3 2016-2017
Extensions
31 33 87 3 -- -- 2009-2017
New Field Discoveries
0 0 0 0 -- -- 2009-2017
New Reservoir Discoveries in Old Fields
0 0 0 0 -- -- 2009-2017
Estimated Production
16 19 42 39 19 18 2007-2017
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Indiana, Kentucky (2017-present), Missouri, New York, South Dakota, Tennessee, and Utah.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 11/28/2018
Next Release Date: 11/29/2019