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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
2,210 2,333 2,554 2,812 2,887 2,674 1979-2010
Adjustments
43 24 5 85 103 -17 1979-2010
Revision Increases
246 53 65 196 130 40 1979-2010
Revision Decreases
73 22 158 139 793 576 1979-2010
Sales
1 459 4 11 0 0 2000-2010
Acquisitions
0 568 6 14 0 34 2000-2010
Extensions
102 24 391 210 748 408 1979-2010
New Field Discoveries
18 0 0 0 0 0 1979-2010
New Reservoir Discoveries in Old Fields
0 5 0 0 0 0 1979-2010
Estimated Production
88 70 84 97 113 102 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