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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
2008 2009 2010 2011 2012 2013 View
History
Proved Reserves as of Dec. 31
3,105 2,728 2,903 2,472 1,687 1,714 1979-2013
Adjustments
-24 -286 254 3 -97 -103 1979-2013
Revision Increases
140 334 255 207 515 387 1979-2013
Revision Decreases
407 307 372 260 1,073 137 1979-2013
Sales
0 0 539 654 0 11 2000-2013
Acquisitions
10 17 725 410 0 11 2000-2013
Extensions
14 16 1 0 0 0 1979-2013
New Field Discoveries
4 0 2 0 0 0 1979-2013
New Reservoir Discoveries in Old Fields
1 0 0 0 0 0 1979-2013
Estimated Production
145 151 151 137 130 120 1979-2013
- = 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: 12/4/2014
Next Release Date: 12/31/2015