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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
6,670 6,705 6,364 7,888 17,220 26,063 1979-2010
Adjustments
49 -18 80 -63 154 -484 1979-2010
Revision Increases
333 597 432 664 1,168 2,594 1979-2010
Revision Decreases
232 757 407 556 2,296 2,489 1979-2010
Sales
70 57 2,091 917 82 598 2000-2010
Acquisitions
141 190 1,259 1,157 51 564 2000-2010
Extensions
1,197 626 937 1,616 9,580 10,751 1979-2010
New Field Discoveries
0 0 0 159 255 48 1979-2010
New Reservoir Discoveries in Old Fields
11 4 1 147 1,494 173 1979-2010
Estimated Production
493 550 552 683 992 1,716 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