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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
1,235 3,201 7,193 12,866 15,945 27,021 1979-2017
Adjustments
-41 -319 -274 889 97 180 1979-2017
Revision Increases
181 537 1,656 2,513 3,219 7,649 1979-2017
Revision Decreases
162 160 1,594 1,655 2,701 2,048 1979-2017
Sales
0 12 22 1,495 275 1,305 2000-2017
Acquisitions
71 0 42 1,409 0 2,918 2000-2017
Extensions and Discoveries
        4,174 5,475 2016-2017
Extensions
494 1,802 3,432 3,435 -- -- 1979-2017
New Field Discoveries
14 17 1 0 -- -- 1979-2017
New Reservoir Discoveries in Old Fields
5 269 1,261 1,582 -- -- 1979-2017
Estimated Production
85 168 510 1,005 1,435 1,793 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