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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
2005 2006 2007 2008 2009 2010 View
History
Proved Reserves as of Dec. 31
837 874 848 817 681 657 1979-2010
Adjustments
8 12 10 -10 56 16 1979-2010
Revision Increases
44 15 34 30 8 65 1979-2010
Revision Decreases
109 60 43 40 148 70 1979-2010
Sales
5 1 13 45 0 12 2000-2010
Acquisitions
7 0 13 55 0 0 2000-2010
Extensions
92 123 64 67 28 47 1979-2010
New Field Discoveries
0 20 0 0 0 0 1979-2010
New Reservoir Discoveries in Old Fields
14 28 1 0 0 0 1979-2010
Estimated Production
86 100 92 88 80 70 1979-2010
- = 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: 8/2/2012
Next Release Date: 8/30/2013