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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
2,451 2,145 1,554 1,450 1,450 1,397 1981-2014
Adjustments
20 -17 1 -131 101 100 1981-2014
Revision Increases
596 338 378 590 292 983 1981-2014
Revision Decreases
447 461 712 419 156 990 1981-2014
Sales
34 139 23 75 170 36 2000-2014
Acquisitions
22 218 70 42 69 67 2000-2014
Extensions
19 140 13 93 83 43 1981-2014
New Field Discoveries
260 0 0 18 0 0 1981-2014
New Reservoir Discoveries in Old Fields
77 24 0 55 17 26 1981-2014
Estimated Production
454 409 318 277 236 246 1981-2014
- = 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