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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
502 402 327 225 334 222 1981-2017
Adjustments
213 -83 -51 -23 179 -30 1981-2017
Revision Increases
122 72 12 21 19 14 1981-2017
Revision Decreases
248 47 51 55 32 49 1981-2017
Sales
24 4 3 12 1 4 2000-2017
Acquisitions
9 0 20 6 0 0 2000-2017
Extensions and Discoveries
        0 0 2016-2017
Extensions
12 12 17 1 -- -- 1981-2017
New Field Discoveries
0 16 25 0 -- -- 1981-2017
New Reservoir Discoveries in Old Fields
0 0 8 0 -- -- 1981-2017
Estimated Production
84 66 52 40 56 43 1981-2017
- = 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