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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
944 778 602 575 667 692 1977-2015
Adjustments
-19 -59 38 3 39 137 1977-2015
Revision Increases
103 43 31 113 89 33 1977-2015
Revision Decreases
100 97 191 49 54 88 1977-2015
Sales
40 44 30 72 2 128 2000-2015
Acquisitions
30 44 4 4 1 127 2000-2015
Extensions
86 14 37 36 77 3 1977-2015
New Field Discoveries
0 7 0 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
1 1 0 0 0 0 1977-2015
Estimated Production
93 75 65 62 58 59 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