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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
2,633 2,737 2,658 2,612 2,475 2,156 1979-2012
Adjustments
56 -12 149 -49 -92 31 1979-2012
Revision Increases
307 330 298 339 237 253 1979-2012
Revision Decreases
308 324 406 225 301 515 1979-2012
Sales
205 112 100 91 121 100 2000-2012
Acquisitions
123 180 186 150 148 52 2000-2012
Extensions
356 381 116 94 218 164 1979-2012
New Field Discoveries
22 0 0 0 0 0 1979-2012
New Reservoir Discoveries in Old Fields
11 1 3 1 2 4 1979-2012
Estimated Production
334 340 325 265 228 208 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