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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
2010 2011 2012 2013 2014 2015 View
History
Proved Reserves as of Dec. 31
1,021 976 995 955 954 674 1979-2015
Adjustments
-2 -1 -1 1 -24 229 1979-2015
Revision Increases
392 95 263 114 89 56 1979-2015
Revision Decreases
195 128 142 301 137 499 1979-2015
Sales
132 34 2 92 0 0 2000-2015
Acquisitions
0 171 0 271 34 1 2000-2015
Extensions
13 1 30 74 138 27 1979-2015
New Field Discoveries
0 0 0 0 0 0 1979-2015
New Reservoir Discoveries in Old Fields
0 3 0 1 0 0 1979-2015
Estimated Production
145 152 129 108 101 94 1979-2015
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Idaho, 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: 12/14/2016
Next Release Date: 11/30/2017