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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
2,659 2,913 3,247 3,467 6,885 13,924 1979-2010
Adjustments
180 -129 77 -187 52 -303 1979-2010
Revision Increases
228 183 318 650 668 2,904 1979-2010
Revision Decreases
143 214 271 480 493 1,935 1979-2010
Sales
78 6 4 277 52 683 2000-2010
Acquisitions
139 235 40 168 591 855 2000-2010
Extensions
259 337 337 453 2,788 5,824 1979-2010
New Field Discoveries
0 14 7 61 128 51 1979-2010
New Reservoir Discoveries in Old Fields
0 0 3 33 0 911 1979-2010
Estimated Production
172 166 173 201 264 585 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