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Coalbed Methane
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2008 2009 2010 2011 2012 2013 View
History
Proved Reserves as of Dec. 31
3,991 3,646 3,532 3,358 2,772 2,856 1989-2013
Adjustments
  -9 261 -170 56 41 2009-2013
Revision Increases
  443 562 562 255 1,362 2009-2013
Revision Decreases
  353 565 279 602 587 2009-2013
Sales
  33 12 221 0 440 2009-2013
Acquisitions
  2 0 221 0 42 2009-2013
Extensions
  37 42 80 60 22 2009-2013
New Field Discoveries
  0 0 0 0 0 2009-2013
New Reservoir Discoveries in Old Fields
  0 0 7 0 0 2009-2013
Estimated Production
443 432 402 374 355 356 1989-2013
- = 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: 12/4/2014
Next Release Date: 12/31/2015