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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
8,999 9,205 11,468 12,207 12,806 14,958 1979-2010
Adjustments
86 88 79 -113 426 400 1979-2010
Revision Increases
543 825 1,807 2,169 1,801 2,732 1979-2010
Revision Decreases
511 1,703 826 1,807 2,271 2,739 1979-2010
Sales
497 532 222 1,073 370 523 2000-2010
Acquisitions
1,052 889 402 1,097 252 985 2000-2010
Extensions
1,471 1,395 1,806 1,433 1,708 2,213 1979-2010
New Field Discoveries
9 1 0 2 0 52 1979-2010
New Reservoir Discoveries in Old Fields
7 0 104 2 43 52 1979-2010
Estimated Production
725 757 887 971 990 1,020 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