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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
3,977 3,945 4,016 3,360 2,919 2,686 1979-2010
Adjustments
-21 -3 2 -7 42 47 1979-2010
Revision Increases
133 234 153 287 90 208 1979-2010
Revision Decreases
60 205 35 747 336 176 1979-2010
Sales
427 188 303 11 2 270 2000-2010
Acquisitions
439 259 385 20 0 153 2000-2010
Extensions
84 150 125 61 21 29 1979-2010
New Field Discoveries
0 0 0 2 0 1 1979-2010
New Reservoir Discoveries in Old Fields
0 7 17 1 0 0 1979-2010
Estimated Production
298 286 273 262 256 225 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