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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
9,101 8,838 9,424 9,579 7,316 6,745 1977-2014
Adjustments
3 1 -1 -2 -5 -21 1977-2014
Revision Increases
1,868 622 928 752 153 266 1977-2014
Revision Decreases
108 452 206 339 2,400 685 1977-2014
Sales
5 131 36 2 91 165 2000-2014
Acquisitions
0 0 221 0 272 193 2000-2014
Extensions
2 14 4 45 92 145 1977-2014
New Field Discoveries
0 0 0 0 0 0 1977-2014
New Reservoir Discoveries in Old Fields
0 0 3 0 1 0 1977-2014
Estimated Production
358 317 327 299 285 304 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