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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
281 253 184 144 143 104 1977-2015
Adjustments
104 -22 76 -32 38 27 1977-2015
Revision Increases
35 48 12 35 16 9 1977-2015
Revision Decreases
83 50 108 12 31 57 1977-2015
Sales
2 0 43 8 4 0 2000-2015
Acquisitions
11 0 0 0 0 0 2000-2015
Extensions
0 0 21 0 0 0 1977-2015
New Field Discoveries
56 0 0 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
0 27 0 0 0 0 1977-2015
Estimated Production
36 31 27 23 20 18 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