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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
12,348 10,915 10,033 8,786 7,633 6,916 1990-2010
Adjustments
4 -11 -46 -1 2 -41 1990-2010
Revision Increases
1,855 1,559 1,240 1,131 1,511 2,054 1990-2010
Revision Decreases
2,095 1,887 1,561 1,631 1,400 1,433 1990-2010
Sales
787 2,317 763 672 142 827 2000-2010
Acquisitions
681 2,264 987 558 165 784 2000-2010
Extensions
614 690 539 637 208 246 1990-2010
New Field Discoveries
541 87 575 228 96 65 1990-2010
New Reservoir Discoveries in Old Fields
497 388 325 248 186 95 1990-2010
Estimated Production
2,348 2,206 2,178 1,745 1,779 1,660 1990-2010
- = 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