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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
1,550 1,460 1,690 1,490 1,025 1,273 1977-2017
Adjustments
-574 -55 10 352 -344 129 1977-2017
Revision Increases
379 223 579 55 111 262 1977-2017
Revision Decreases
491 84 200 511 121 90 1977-2017
Sales
284 35 1,083 1 15 0 2000-2017
Acquisitions
92 25 1,074 12 0 0 2000-2017
Extensions and Discoveries
        30 69 2016-2017
Extensions
3 1 0 69 -- -- 1977-2017
New Field Discoveries
4 0 0 0 -- -- 1977-2017
New Reservoir Discoveries in Old Fields
9 0 0 0 -- -- 1977-2017
Estimated Production
178 165 150 176 126 122 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