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Natural Gas Proved Reserves, Wet After Lease Separation
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2011 2012 2013 2014 2015 2016 View
History
Proved Reserves as of Dec. 31
348,809 322,670 353,994 388,841 324,303 341,133 1979-2016
Adjustments
2,715 -810 693 4,905 9,430 7,086 1979-2016
Revision Increases
56,015 42,505 49,515 55,328 38,995 56,800 1979-2016
Revision Decreases
56,127 88,119 46,721 54,344 119,757 56,706 1979-2016
Sales
44,575 9,950 10,186 21,729 14,682 19,566 2000-2016
Acquisitions
47,873 8,091 11,473 28,294 16,099 19,998 2000-2016
Extensions and Discoveries
          38,371 2016-2016
Extensions
47,635 47,053 51,074 47,071 32,940 -- 1979-2016
New Field Discoveries
987 780 263 671 31 -- 1979-2016
New Reservoir Discoveries in Old Fields
1,260 408 1,680 2,745 1,735 -- 1979-2016
Estimated Production
24,621 26,097 26,467 28,094 29,329 29,153 1979-2016
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Idaho, Illinois, Indiana, Maryland, Missouri, Nebraska, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 2/13/2018
Next Release Date: 10/31/2018