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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
686 621 612 503 510 272 1979-2012
Adjustments
29 3 2 -3 -12 57 1979-2012
Revision Increases
80 113 97 50 118 86 1979-2012
Revision Decreases
186 129 60 87 32 121 1979-2012
Sales
165 1 0 2 48 303 2000-2012
Acquisitions
234 23 25 0 44 93 2000-2012
Extensions
14 7 6 1 1 0 1979-2012
New Field Discoveries
0 0 1 1 0 0 1979-2012
New Reservoir Discoveries in Old Fields
1 7 0 0 0 9 1979-2012
Estimated Production
101 88 80 69 64 59 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