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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
80,424 88,997 98,165 86,924 90,349 97,154 1981-2014
Adjustments
745 985 144 104 880 72 1981-2014
Revision Increases
7,936 10,917 19,921 9,246 13,412 14,787 1981-2014
Revision Decreases
9,658 9,252 18,843 25,403 12,498 10,387 1981-2014
Sales
1,852 2,580 20,510 2,774 3,423 6,483 2000-2014
Acquisitions
1,563 3,179 22,546 3,000 3,942 8,111 2000-2014
Extensions
10,260 11,657 12,555 11,911 8,108 8,361 1981-2014
New Field Discoveries
476 519 69 58 5 30 1981-2014
New Reservoir Discoveries in Old Fields
425 122 425 187 606 191 1981-2014
Estimated Production
7,017 6,974 7,139 7,570 7,607 7,877 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