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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
602 575 667 692 569 611 1977-2017
Adjustments
38 3 39 137 -116 18 1977-2017
Revision Increases
31 113 89 33 89 73 1977-2017
Revision Decreases
191 49 54 88 43 5 1977-2017
Sales
30 72 2 128 46 1 2000-2017
Acquisitions
4 4 1 127 43 0 2000-2017
Extensions and Discoveries
        1 4 2016-2017
Extensions
37 36 77 3 -- -- 1977-2017
New Field Discoveries
0 0 0 0 -- -- 1977-2017
New Reservoir Discoveries in Old Fields
0 0 0 0 -- -- 1977-2017
Estimated Production
65 62 58 59 51 47 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