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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
5,177 5,634 6,496 7,119 6,984 7,915 1979-2010
Adjustments
17 81 -49 -18 223 -144 1979-2010
Revision Increases
744 548 507 457 492 1,288 1979-2010
Revision Decreases
664 655 302 777 1,120 868 1979-2010
Sales
942 136 496 649 42 145 2000-2010
Acquisitions
610 216 838 422 57 99 2000-2010
Extensions
692 871 859 1,382 817 1,274 1979-2010
New Field Discoveries
0 0 3 387 0 0 1979-2010
New Reservoir Discoveries in Old Fields
0 0 0 0 0 0 1979-2010
Estimated Production
414 468 498 581 562 573 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