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Nonassociated Natural Gas Proved Reserves, Wet After Lease Separation
(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
3,360 2,919 2,686 2,522 2,204 1,624 1979-2013
Adjustments
-7 42 47 -48 47 -195 1979-2013
Revision Increases
287 90 208 470 84 50 1979-2013
Revision Decreases
747 336 176 163 256 79 1979-2013
Sales
11 2 270 586 11 373 2000-2013
Acquisitions
20 0 153 378 22 191 2000-2013
Extensions
61 21 29 3 0 0 1979-2013
New Field Discoveries
2 0 1 0 0 0 1979-2013
New Reservoir Discoveries in Old Fields
1 0 0 0 0 0 1979-2013
Estimated Production
262 256 225 218 204 174 1979-2013
- = 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, 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