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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
987 1,456 2,332 5,227 6,516 4,442 1979-2013
Adjustments
113 5 -95 -42 20 120 1979-2013
Revision Increases
37 110 430 2,184 1,620 702 1979-2013
Revision Decreases
143 110 331 116 1,380 2,783 1979-2013
Sales
5 38 505 1,227 28 13 2000-2013
Acquisitions
10 55 445 1,172 8 6 2000-2013
Extensions
24 141 960 1,117 1,374 352 1979-2013
New Field Discoveries
4 390 63 2 1 0 1979-2013
New Reservoir Discoveries in Old Fields
0 0 16 0 0 0 1979-2013
Estimated Production
82 84 107 195 326 458 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