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Coalbed Methane
(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
5,074 4,391 5,103 4,394 3,265 3,275 1989-2017
Adjustments
181 75 66 -194 -306 21 2009-2017
Revision Increases
343 789 1,162 206 60 268 2009-2017
Revision Decreases
1,566 1,023 198 345 697 260 2009-2017
Sales
0 82 0 104 6 183 2009-2017
Acquisitions
0 0 60 117 166 472 2009-2017
Extensions and Discoveries
        6 30 2016-2017
Extensions
22 2 34 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
486 444 412 392 352 338 1989-2017
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Illinois, Indiana, Kentucky (2017-present), Ohio, and Pennsylvania (2017-Present).  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 11/28/2018
Next Release Date: 11/29/2019