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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
2009 2010 2011 2012 2013 2014 View
History
Proved Reserves as of Dec. 31
11,457 11,186 10,626 9,200 8,943 9,484 1977-2014
Adjustments
274 111 197 94 -8 303 1977-2014
Revision Increases
855 1,731 1,612 1,570 2,393 1,952 1977-2014
Revision Decreases
1,080 1,415 1,798 2,426 2,076 1,174 1977-2014
Sales
138 12 817 0 222 0 2000-2014
Acquisitions
63 0 821 4 309 11 2000-2014
Extensions
124 142 211 97 55 159 1977-2014
New Field Discoveries
1 0 0 0 0 0 1977-2014
New Reservoir Discoveries in Old Fields
0 0 7 0 0 0 1977-2014
Estimated Production
896 828 793 765 708 710 1977-2014
- = 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: 11/19/2015
Next Release Date: 12/31/2016