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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
11,186 10,626 9,200 8,943 9,484 8,896 1977-2015
Adjustments
111 197 94 -8 303 -220 1977-2015
Revision Increases
1,731 1,612 1,570 2,393 1,952 731 1977-2015
Revision Decreases
1,415 1,798 2,426 2,076 1,174 2,007 1977-2015
Sales
12 817 0 222 0 682 2000-2015
Acquisitions
0 821 4 309 11 2,155 2000-2015
Extensions
142 211 97 55 159 104 1977-2015
New Field Discoveries
0 0 0 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
0 7 0 0 0 0 1977-2015
Estimated Production
828 793 765 708 710 669 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