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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
848 817 681 657 522 327 1979-2012
Adjustments
10 -10 56 16 -25 46 1979-2012
Revision Increases
34 30 8 65 12 6 1979-2012
Revision Decreases
43 40 148 70 65 175 1979-2012
Sales
13 45 0 12 0 27 2000-2012
Acquisitions
13 55 0 0 0 0 2000-2012
Extensions
64 67 28 47 0 0 1979-2012
New Field Discoveries
0 0 0 0 0 0 1979-2012
New Reservoir Discoveries in Old Fields
1 0 0 0 0 0 1979-2012
Estimated Production
92 88 80 70 57 45 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