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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
312 262 304 258 215 161 1981-2009
Adjustments
4 18 13 -25 14 -29 1981-2009
Revision Increases
158 33 15 11 23 29 1981-2009
Revision Decreases
206 33 35 23 35 21 1981-2009
Sales
126 26 69 0 25 3 2000-2009
Acquisitions
80 4 60 0 17 0 2000-2009
Extensions
1 0 0 23 2 0 1981-2009
New Field Discoveries
10 0 17 0 5 0 1981-2009
New Reservoir Discoveries in Old Fields
3 12 72 0 6 10 1981-2009
Estimated Production
62 58 31 32 50 40 1981-2009
- = 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