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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
2007 2008 2009 2010 2011 2012 View
History
Proved Reserves as of Dec. 31
4,714 4,147 3,724 3,502 2,857 2,523 1979-2012
Adjustments
-15 -23 56 84 -184 408 1979-2012
Revision Increases
271 163 175 380 412 248 1979-2012
Revision Decreases
167 619 444 714 564 814 1979-2012
Sales
1,880 31 83 261 161 57 2000-2012
Acquisitions
1,972 66 53 173 17 38 2000-2012
Extensions
316 173 93 358 48 37 1979-2012
New Field Discoveries
0 0 0 0 0 1 1979-2012
New Reservoir Discoveries in Old Fields
0 1 0 0 0 0 1979-2012
Estimated Production
314 297 273 242 213 195 1979-2012
- = 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, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 4/10/2014
Next Release Date: 4/30/2015