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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
87 90 90 83 57 57 1979-2009
Adjustments
-4 -1 1 0 0 2 1979-2009
Revision Increases
15 13 9 12 2 3 1979-2009
Revision Decreases
1 3 7 15 29 3 1979-2009
Sales
2 0 0 2 0 0 2000-2009
Acquisitions
2 0 0 0 0 0 2000-2009
Extensions
1 1 1 4 5 4 1979-2009
New Field Discoveries
0 0 0 0 0 0 1979-2009
New Reservoir Discoveries in Old Fields
0 0 3 0 0 0 1979-2009
Estimated Production
7 7 7 6 4 6 1979-2009
- = 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