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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
26,030 27,337 18,418 17,044 19,722 13,593 1977-2015
Adjustments
-387 214 122 201 168 -1,181 1977-2015
Revision Increases
2,593 3,096 2,917 2,604 2,424 2,624 1977-2015
Revision Decreases
2,485 5,321 12,077 3,238 2,770 6,036 1977-2015
Sales
602 4,986 276 960 2,266 1,592 2000-2015
Acquisitions
562 5,046 176 1,153 4,217 417 2000-2015
Extensions
10,707 5,678 2,833 764 2,461 1,075 1977-2015
New Field Discoveries
47 0 0 1 0 0 1977-2015
New Reservoir Discoveries in Old Fields
173 143 0 0 5 0 1977-2015
Estimated Production
1,721 2,563 2,614 1,899 1,561 1,436 1977-2015
- = 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