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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
9,467 11,038 12,291 8,775 14,795 17,917 1979-2017
Adjustments
892 803 -117 263 -141 154 1979-2017
Revision Increases
1,032 1,007 1,651 732 7,572 2,873 1979-2017
Revision Decreases
2,238 1,693 872 4,863 1,247 338 1979-2017
Sales
552 477 570 1,349 501 797 2000-2017
Acquisitions
68 600 1,182 1,589 450 1,721 2000-2017
Extensions and Discoveries
        980 586 2016-2017
Extensions
1,263 2,264 938 1,141 -- -- 1979-2017
New Field Discoveries
1 0 2 0 -- -- 1979-2017
New Reservoir Discoveries in Old Fields
5 1 21 0 -- -- 1979-2017
Estimated Production
997 934 982 1,029 1,093 1,077 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