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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
2012 2013 2014 2015 2016 2017 View
History
Proved Reserves as of Dec. 31
1,965 1,795 1,760 1,520 1,424 1,879 1979-2017
Adjustments
164 -99 52 46 61 -66 1979-2017
Revision Increases
608 335 290 167 119 514 1979-2017
Revision Decreases
655 215 228 308 174 43 1979-2017
Sales
224 87 143 19 104 47 2000-2017
Acquisitions
175 86 131 19 165 97 2000-2017
Extensions and Discoveries
        62 190 2016-2017
Extensions
122 86 97 102 -- -- 1979-2017
New Field Discoveries
7 0 18 0 -- -- 1979-2017
New Reservoir Discoveries in Old Fields
8 8 23 12 -- -- 1979-2017
Estimated Production
331 284 275 259 225 190 1979-2017
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Florida (2017-present), 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: 11/28/2018
Next Release Date: 11/29/2019