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Estimated Dry Natural Gas contained in Total Natural Gas Proved Reserves
(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
29,277 30,358 21,949 20,164 22,975 16,097 1981-2015
Adjustments
-612 178 605 -42 487 -1,675 1981-2015
Revision Increases
3,149 3,755 3,757 2,951 2,762 3,094 1981-2015
Revision Decreases
3,184 5,843 12,816 3,787 3,389 6,591 1981-2015
Sales
738 5,583 352 1,049 2,478 1,649 2000-2015
Acquisitions
847 5,552 285 1,425 4,523 476 2000-2015
Extensions
10,989 5,793 3,151 1,023 2,740 1,241 1981-2015
New Field Discoveries
48 47 5 17 57 0 1981-2015
New Reservoir Discoveries in Old Fields
279 167 13 21 69 33 1981-2015
Estimated Production
2,189 2,985 3,057 2,344 1,960 1,807 1981-2015
- = 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. 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: 12/14/2016
Next Release Date: 11/30/2017