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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
1,148 1,048 1,029 987 1,456 2,332 1979-2010
Adjustments
27 83 -6 113 5 -95 1979-2010
Revision Increases
67 32 51 37 110 430 1979-2010
Revision Decreases
134 186 109 143 110 331 1979-2010
Sales
64 0 187 5 38 505 2000-2010
Acquisitions
78 4 250 10 55 445 2000-2010
Extensions
105 72 71 24 141 960 1979-2010
New Field Discoveries
0 2 0 4 390 63 1979-2010
New Reservoir Discoveries in Old Fields
11 0 0 0 0 16 1979-2010
Estimated Production
126 107 89 82 84 107 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