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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
3,829 3,891 4,267 4,506 3,950 3,777 1979-2010
Adjustments
-6 16 14 -29 150 229 1979-2010
Revision Increases
253 277 501 750 491 642 1979-2010
Revision Decreases
568 537 423 362 1,242 894 1979-2010
Sales
321 887 198 62 188 124 2000-2010
Acquisitions
381 1,055 188 68 97 48 2000-2010
Extensions
1,134 465 559 241 491 262 1979-2010
New Field Discoveries
12 2 0 0 1 0 1979-2010
New Reservoir Discoveries in Old Fields
0 8 130 5 3 0 1979-2010
Estimated Production
322 337 395 372 359 336 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