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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
4,608 6,660 7,846 9,390 11,100 12,587 1979-2010
Adjustments
-8 -14 4 -38 98 345 1979-2010
Revision Increases
474 140 554 246 628 932 1979-2010
Revision Decreases
759 188 116 283 514 223 1979-2010
Sales
324 560 48 53 69 95 2000-2010
Acquisitions
405 1,433 6 223 21 44 2000-2010
Extensions
751 1,669 1,302 2,088 2,234 1,207 1979-2010
New Field Discoveries
0 0 0 1 0 0 1979-2010
New Reservoir Discoveries in Old Fields
0 0 18 22 14 8 1979-2010
Estimated Production
376 428 534 662 702 731 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