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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
2,066 2,048 2,249 2,292 1,837 2,101 1979-2010
Adjustments
165 224 -162 57 -101 18 1979-2010
Revision Increases
158 212 250 276 194 321 1979-2010
Revision Decreases
249 530 220 384 364 308 1979-2010
Sales
214 132 271 105 23 19 2000-2010
Acquisitions
260 192 318 113 5 29 2000-2010
Extensions
319 313 573 370 80 123 1979-2010
New Field Discoveries
28 10 1 7 0 327 1979-2010
New Reservoir Discoveries in Old Fields
39 19 16 24 13 10 1979-2010
Estimated Production
298 326 304 315 259 237 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