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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
4,515 4,115 4,165 3,710 3,417 3,858 1979-2010
Adjustments
50 100 74 -12 246 168 1979-2010
Revision Increases
208 839 423 343 205 718 1979-2010
Revision Decreases
401 1,071 221 519 421 163 1979-2010
Sales
47 19 69 17 3 17 2000-2010
Acquisitions
61 14 68 32 1 21 2000-2010
Extensions
113 99 152 78 25 26 1979-2010
New Field Discoveries
0 0 0 6 0 3 1979-2010
New Reservoir Discoveries in Old Fields
4 3 0 2 0 1 1979-2010
Estimated Production
396 365 377 368 346 316 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