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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
8,956 8,364 8,210 7,803 6,961 7,301 1979-2010
Adjustments
30 302 62 -47 -94 38 1979-2010
Revision Increases
1,136 860 980 1,064 798 1,129 1979-2010
Revision Decreases
1,145 1,900 854 1,684 1,456 882 1979-2010
Sales
850 1,198 1,895 191 273 219 2000-2010
Acquisitions
1,003 1,235 1,446 314 324 189 2000-2010
Extensions
1,054 1,188 1,065 1,168 530 984 1979-2010
New Field Discoveries
22 24 33 88 48 25 1979-2010
New Reservoir Discoveries in Old Fields
66 90 219 66 324 3 1979-2010
Estimated Production
1,262 1,193 1,210 1,185 1,043 927 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