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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
2,569 2,605 2,633 2,737 2,658 2,612 1979-2010
Adjustments
42 110 56 -12 149 -49 1979-2010
Revision Increases
288 332 307 330 298 339 1979-2010
Revision Decreases
329 408 308 324 406 225 1979-2010
Sales
436 121 205 112 100 91 2000-2010
Acquisitions
554 112 123 180 186 150 2000-2010
Extensions
333 312 356 381 116 94 1979-2010
New Field Discoveries
5 39 22 0 0 0 1979-2010
New Reservoir Discoveries in Old Fields
2 0 11 1 3 1 1979-2010
Estimated Production
367 340 334 340 325 265 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