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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
173 165 290 266 261 223 1977-2015
Adjustments
1 13 1 -11 13 -14 1977-2015
Revision Increases
38 20 150 13 23 10 1977-2015
Revision Decreases
16 31 16 14 24 32 1977-2015
Sales
1 0 0 0 53 0 2000-2015
Acquisitions
0 0 0 0 49 0 2000-2015
Extensions
0 1 1 0 0 10 1977-2015
New Field Discoveries
0 0 0 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
0 0 0 0 0 0 1977-2015
Estimated Production
12 11 11 12 13 12 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