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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
2004 2005 2006 2007 2008 2009 View
History
Proved Reserves as of Dec. 31
7,564 8,999 9,205 11,468 12,207 12,806 1979-2009
Adjustments
111 86 88 79 -113 426 1979-2009
Revision Increases
887 543 825 1,807 2,169 1,801 1979-2009
Revision Decreases
662 511 1,703 826 1,807 2,271 1979-2009
Sales
215 497 532 222 1,073 370 2000-2009
Acquisitions
470 1,052 889 402 1,097 252 2000-2009
Extensions
968 1,471 1,395 1,806 1,433 1,708 1979-2009
New Field Discoveries
19 9 1 0 2 0 1979-2009
New Reservoir Discoveries in Old Fields
81 7 0 104 2 43 1979-2009
Estimated Production
667 725 757 887 971 990 1979-2009
- = 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: 12/30/2010
Next Release Date: 6/15/2012