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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
7,548 6,829 6,685 3,547 3,494 3,752 1977-2017
Adjustments
289 -582 -20 177 144 -251 1977-2017
Revision Increases
1,349 484 752 97 426 819 1977-2017
Revision Decreases
1,926 444 617 3,125 342 268 1977-2017
Sales
12 478 23 42 73 129 2000-2017
Acquisitions
22 640 31 0 0 270 2000-2017
Extensions and Discoveries
        142 118 2016-2017
Extensions
447 117 164 160 -- -- 1977-2017
New Field Discoveries
0 0 2 0 -- -- 1977-2017
New Reservoir Discoveries in Old Fields
0 0 0 0 -- -- 1977-2017
Estimated Production
478 456 433 405 350 301 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