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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
2,145 1,554 1,450 1,450 1,397 1,148 1981-2015
Adjustments
-17 1 -131 101 100 -33 1981-2015
Revision Increases
338 378 590 292 983 310 1981-2015
Revision Decreases
461 712 419 156 990 412 1981-2015
Sales
139 23 75 170 36 9 2000-2015
Acquisitions
218 70 42 69 67 81 2000-2015
Extensions
140 13 93 83 43 36 1981-2015
New Field Discoveries
0 0 18 0 0 0 1981-2015
New Reservoir Discoveries in Old Fields
24 0 55 17 26 29 1981-2015
Estimated Production
409 318 277 236 246 251 1981-2015
- = 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