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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
621 612 503 510 272 247 1979-2013
Adjustments
3 2 -3 -12 57 -20 1979-2013
Revision Increases
113 97 50 118 86 115 1979-2013
Revision Decreases
129 60 87 32 121 74 1979-2013
Sales
1 0 2 48 303 0 2000-2013
Acquisitions
23 25 0 44 93 0 2000-2013
Extensions
7 6 1 1 0 0 1979-2013
New Field Discoveries
0 1 1 0 0 0 1979-2013
New Reservoir Discoveries in Old Fields
7 0 0 0 9 0 1979-2013
Estimated Production
88 80 69 64 59 46 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