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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
2,469 2,321 2,590 1,550 1,460 1,690 1977-2014
Adjustments
2 4 902 -574 -55 10 1977-2014
Revision Increases
180 488 1,444 379 223 579 1977-2014
Revision Decreases
148 427 1,854 491 84 200 1977-2014
Sales
4 2 45 284 35 1,083 2000-2014
Acquisitions
78 0 42 92 25 1,074 2000-2014
Extensions
446 8 69 3 1 0 1977-2014
New Field Discoveries
1 1 0 4 0 0 1977-2014
New Reservoir Discoveries in Old Fields
0 0 0 9 0 0 1977-2014
Estimated Production
214 220 289 178 165 150 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