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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
308,036 338,264 368,704 307,730 322,234 438,460 1925-2017
Adjustments
-1,588 543 2,256 9,998 5,652 17,680 1977-2017
Revision Increases
40,583 47,174 52,163 36,917 53,512 69,071 1977-2017
Revision Decreases
84,619 44,461 51,463 114,179 53,686 29,624 1977-2017
Sales
9,318 9,558 20,373 14,016 18,411 23,718 2000-2017
Acquisitions
7,518 10,810 26,675 15,231 18,797 44,738 2000-2017
Extensions and Discoveries
        36,198 66,713 2016-2017
Extensions
45,167 49,131 44,599 31,233 -- -- 1977-2017
New Field Discoveries
762 256 632 29 -- -- 1977-2017
New Reservoir Discoveries in Old Fields
376 1,566 2,562 1,631 -- -- 1977-2017
Estimated Production
24,912 25,233 26,611 27,818 27,558 28,634 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