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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
13,386 12,348 10,915 10,033 8,786 7,633 1990-2009
Adjustments
18 4 -11 -46 -1 2 1990-2009
Revision Increases
3,508 1,855 1,559 1,240 1,131 1,511 1990-2009
Revision Decreases
4,692 2,095 1,887 1,561 1,631 1,400 1990-2009
Sales
1,021 787 2,317 763 672 142 2000-2009
Acquisitions
1,238 681 2,264 987 558 165 2000-2009
Extensions
1,080 614 690 539 637 208 1990-2009
New Field Discoveries
241 541 87 575 228 96 1990-2009
New Reservoir Discoveries in Old Fields
531 497 388 325 248 186 1990-2009
Estimated Production
3,133 2,348 2,206 2,178 1,745 1,779 1990-2009
- = 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