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Dry Natural Gas Proved Reserves
(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
607 595 558 480 357 350 1977-2017
Adjustments
65 29 -15 50 -40 -45 1977-2017
Revision Increases
91 39 82 47 30 22 1977-2017
Revision Decreases
300 75 29 129 55 13 1977-2017
Sales
159 39 115 95 10 5 2000-2017
Acquisitions
109 90 82 104 0 73 2000-2017
Extensions and Discoveries
        0 0 2016-2017
Extensions
4 5 9 3 -- -- 1977-2017
New Field Discoveries
1 0 1 0 -- -- 1977-2017
New Reservoir Discoveries in Old Fields
0 0 2 0 -- -- 1977-2017
Estimated Production
64 61 54 58 48 39 1977-2017
- = 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. Estimated Dry Natural Gas is calculated from Total Natural Gas Proved Reserves.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 11/28/2018
Next Release Date: 11/29/2019