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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
7,803 6,961 7,301 9,993 9,467 11,038 1979-2013
Adjustments
-47 -94 38 434 892 803 1979-2013
Revision Increases
1,064 798 1,129 2,390 1,032 1,007 1979-2013
Revision Decreases
1,684 1,456 882 1,133 2,238 1,693 1979-2013
Sales
191 273 219 964 552 477 2000-2013
Acquisitions
314 324 189 1,319 68 600 2000-2013
Extensions
1,168 530 984 1,543 1,263 2,264 1979-2013
New Field Discoveries
88 48 25 7 1 0 1979-2013
New Reservoir Discoveries in Old Fields
66 324 3 24 5 1 1979-2013
Estimated Production
1,185 1,043 927 928 997 934 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