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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
8,838 9,424 9,579 7,316 6,745 4,566 1977-2015
Adjustments
1 -1 -2 -5 -21 229 1977-2015
Revision Increases
622 928 752 153 266 76 1977-2015
Revision Decreases
452 206 339 2,400 685 2,217 1977-2015
Sales
131 36 2 91 165 0 2000-2015
Acquisitions
0 221 0 272 193 1 2000-2015
Extensions
14 4 45 92 145 27 1977-2015
New Field Discoveries
0 0 0 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields
0 3 0 1 0 0 1977-2015
Estimated Production
317 327 299 285 304 295 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