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Natural Gas Proved Reserves, Wet After Lease Separation
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2010 2011 2012 2013 2014 2015 View
History
Proved Reserves as of Dec. 31
317,647 348,809 322,670 353,994 388,841 324,303 1979-2015
Adjustments
1,292 2,715 -810 693 4,905 9,430 1979-2015
Revision Increases
42,394 56,015 42,505 49,515 55,328 38,995 1979-2015
Revision Decreases
38,339 56,127 88,119 46,721 54,344 119,757 1979-2015
Sales
10,582 44,575 9,950 10,186 21,729 14,682 2000-2015
Acquisitions
13,348 47,873 8,091 11,473 28,294 16,099 2000-2015
Extensions
46,283 47,635 47,053 51,074 47,071 32,940 1979-2015
New Field Discoveries
895 987 780 263 671 31 1979-2015
New Reservoir Discoveries in Old Fields
1,701 1,260 408 1,680 2,745 1,735 1979-2015
Estimated Production
23,224 24,621 26,097 26,467 28,094 29,329 1979-2015
- = 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: 12/14/2016
Next Release Date: 11/30/2017