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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
2,773 2,647 2,934 1,999 1,887 2,107 1977-2014
Adjustments
11 10 923 -563 -72 34 1977-2014
Revision Increases
259 548 1,486 538 256 612 1977-2014
Revision Decreases
189 451 1,889 539 103 241 1977-2014
Sales
4 3 47 284 70 1,155 2000-2014
Acquisitions
78 0 52 92 60 1,144 2000-2014
Extensions
450 12 73 8 3 0 1977-2014
New Field Discoveries
1 1 0 4 0 0 1977-2014
New Reservoir Discoveries in Old Fields
0 0 0 9 2 2 1977-2014
Estimated Production
239 243 311 200 188 176 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