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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
5,985 6,640 7,524 5,249 4,965 5,804 1979-2017
Adjustments
38 -95 43 -58 507 182 1979-2017
Revision Increases
442 1,107 726 862 925 666 1979-2017
Revision Decreases
673 1,642 840 3,053 1,864 276 1979-2017
Sales
12 416 1,522 61 342 121 2000-2017
Acquisitions
214 479 1,454 91 319 181 2000-2017
Extensions and Discoveries
        936 903 2016-2017
Extensions
2,681 1,792 1,677 838 -- -- 1979-2017
New Field Discoveries
0 0 0 0 -- -- 1979-2017
New Reservoir Discoveries in Old Fields
76 30 118 0 -- -- 1979-2017
Estimated Production
471 600 772 894 765 696 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, Nebraska, 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