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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
1,164 1,226 1,214 1,269 1,257 1,103 1977-2015
Adjustments
-40 -30 -2 16 4 13 1977-2015
Revision Increases
138 195 107 168 137 413 1977-2015
Revision Decreases
63 36 36 59 59 486 1977-2015
Sales
14 25 29 36 5 5 2000-2015
Acquisitions
4 41 27 42 6 12 2000-2015
Extensions
14 10 16 23 8 0 1977-2015
New Field Discoveries
0 0 1 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
0 1 1 0 0 0 1977-2015
Estimated Production
93 94 97 99 103 101 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