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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
4,665 4,531 4,714 4,147 3,724 3,502 1979-2010
Adjustments
83 42 -15 -23 56 84 1979-2010
Revision Increases
362 110 271 163 175 380 1979-2010
Revision Decreases
458 653 167 619 444 714 1979-2010
Sales
117 108 1,880 31 83 261 2000-2010
Acquisitions
136 138 1,972 66 53 173 2000-2010
Extensions
772 673 316 173 93 358 1979-2010
New Field Discoveries
9 0 0 0 0 0 1979-2010
New Reservoir Discoveries in Old Fields
0 0 0 1 0 0 1979-2010
Estimated Production
318 336 314 297 273 242 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