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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
2007 2008 2009 2010 2011 2012 View
History
Proved Reserves as of Dec. 31
926 886 799 742 684 1,012 1979-2012
Adjustments
92 -19 68 184 -87 -164 1979-2012
Revision Increases
122 129 57 63 13 137 1979-2012
Revision Decreases
65 105 35 58 38 152 1979-2012
Sales
0 31 196 374 0 0 2000-2012
Acquisitions
0 32 78 185 4 71 2000-2012
Extensions
39 23 10 8 118 487 1979-2012
New Field Discoveries
0 1 0 0 0 14 1979-2012
New Reservoir Discoveries in Old Fields
0 0 0 0 0 0 1979-2012
Estimated Production
63 70 69 65 68 65 1979-2012
- = 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: 4/10/2014
Next Release Date: 4/30/2015