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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
272,509 304,625 334,067 308,036 338,264 368,704 1925-2014
Adjustments
5,098 509 1,731 -1,588 543 2,256 1977-2014
Revision Increases
31,416 40,521 53,601 40,583 47,174 52,163 1977-2014
Revision Decreases
33,035 36,571 53,473 84,619 44,461 51,463 1977-2014
Sales
4,109 10,153 43,186 9,318 9,558 20,373 2000-2014
Acquisitions
3,968 12,748 46,241 7,518 10,810 26,675 2000-2014
Extensions
42,139 44,783 45,909 45,167 49,131 44,599 1977-2014
New Field Discoveries
1,372 850 947 762 256 632 1977-2014
New Reservoir Discoveries in Old Fields
2,598 1,668 1,227 376 1,566 2,562 1977-2014
Estimated Production
21,594 22,239 23,555 24,912 25,233 26,611 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