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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
859 1,589 2,350 2,682 2,322 2,504 1979-2010
Adjustments
-42 -94 -35 12 106 48 1979-2010
Revision Increases
158 212 161 176 152 295 1979-2010
Revision Decreases
52 72 77 347 221 256 1979-2010
Sales
25 53 33 31 577 3 2000-2010
Acquisitions
138 62 86 7 32 0 2000-2010
Extensions
457 765 804 717 335 258 1979-2010
New Field Discoveries
0 0 0 2 0 0 1979-2010
New Reservoir Discoveries in Old Fields
1 0 0 1 0 0 1979-2010
Estimated Production
64 90 145 205 187 160 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