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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
2,961 2,789 2,628 2,453 2,326 2,308 1979-2010
Adjustments
63 28 16 74 -105 56 1979-2010
Revision Increases
453 401 445 324 456 419 1979-2010
Revision Decreases
530 454 444 491 338 288 1979-2010
Sales
93 412 565 70 152 157 2000-2010
Acquisitions
109 307 483 59 147 202 2000-2010
Extensions
412 391 269 349 270 181 1979-2010
New Field Discoveries
66 20 44 14 58 21 1979-2010
New Reservoir Discoveries in Old Fields
45 52 72 37 12 27 1979-2010
Estimated Production
523 505 481 471 475 479 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