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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
2,154 2,307 2,199 1,937 1,812 2,506 1977-2017
Adjustments
164 49 -191 34 47 -109 1977-2017
Revision Increases
604 547 370 310 205 787 1977-2017
Revision Decreases
631 284 264 420 302 84 1977-2017
Sales
214 103 142 24 98 105 2000-2017
Acquisitions
182 130 171 22 225 249 2000-2017
Extensions and Discoveries
        61 182 2016-2017
Extensions
121 119 222 112 -- -- 1977-2017
New Field Discoveries
10 3 27 0 -- -- 1977-2017
New Reservoir Discoveries in Old Fields
8 9 20 11 -- -- 1977-2017
Estimated Production
350 317 321 307 263 226 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