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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
738 795 928 990 884 822 1979-2010
Adjustments
6 -23 33 1 6 -8 1979-2010
Revision Increases
53 94 48 92 85 67 1979-2010
Revision Decreases
25 39 49 87 232 59 1979-2010
Sales
16 39 22 2 7 25 2000-2010
Acquisitions
54 29 70 4 2 11 2000-2010
Extensions
74 112 147 156 133 33 1979-2010
New Field Discoveries
0 0 0 0 0 0 1979-2010
New Reservoir Discoveries in Old Fields
3 4 1 2 0 0 1979-2010
Estimated Production
83 81 95 104 93 81 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