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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
10,957 13,389 12,606 8,251 7,364 8,213 1979-2017
Adjustments
-778 -53 18 284 106 -68 1979-2017
Revision Increases
1,749 472 157 232 266 865 1979-2017
Revision Decreases
6,603 280 1,095 4,188 497 118 1979-2017
Sales
1 4 239 188 9 8 2000-2017
Acquisitions
6 9 1 269 0 0 2000-2017
Extensions and Discoveries
        63 869 2016-2017
Extensions
1,388 3,419 1,506 241 -- -- 1979-2017
New Field Discoveries
0 0 0 0 -- -- 1979-2017
New Reservoir Discoveries in Old Fields
11 1 2 2 -- -- 1979-2017
Estimated Production
1,143 1,132 1,133 1,007 816 691 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