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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
13,591 12,392 15,696 12,517 10,585 11,878 1989-2017
Adjustments
1,327 -309 1,796 1,107 -331 367 2009-2017
Revision Increases
971 3,123 3,299 658 807 1,266 2009-2017
Revision Decreases
3,871 1,998 1,020 2,945 1,750 590 2009-2017
Sales
200 869 442 2,208 36 1,637 2009-2017
Acquisitions
36 42 680 1,410 354 2,830 2009-2017
Extensions and Discoveries
        44 37 2016-2017
Extensions
166 278 395 68 -- -- 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
1,655 1,466 1,404 1,269 1,020 980 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