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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
4,827 4,787 4,475 4,890 4,800 6,422 1977-2014
Adjustments
29 68 -311 639 -236 764 1977-2014
Revision Increases
355 535 684 421 693 1,343 1977-2014
Revision Decreases
447 710 708 1,113 889 1,177 1977-2014
Sales
90 575 260 84 129 636 2000-2014
Acquisitions
97 451 271 106 127 886 2000-2014
Extensions
263 496 305 708 568 865 1977-2014
New Field Discoveries
0 0 0 1 0 0 1977-2014
New Reservoir Discoveries in Old Fields
2 10 0 46 104 1 1977-2014
Estimated Production
328 315 293 309 328 424 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