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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
304,625 334,067 308,036 338,264 368,704 307,730 1925-2015
Adjustments
509 1,731 -1,588 543 2,256 9,998 1977-2015
Revision Increases
40,521 53,601 40,583 47,174 52,163 36,917 1977-2015
Revision Decreases
36,571 53,473 84,619 44,461 51,463 114,179 1977-2015
Sales
10,153 43,186 9,318 9,558 20,373 14,016 2000-2015
Acquisitions
12,748 46,241 7,518 10,810 26,675 15,231 2000-2015
Extensions
44,783 45,909 45,167 49,131 44,599 31,233 1977-2015
New Field Discoveries
850 947 762 256 632 29 1977-2015
New Reservoir Discoveries in Old Fields
1,668 1,227 376 1,566 2,562 1,631 1977-2015
Estimated Production
22,239 23,555 24,912 25,233 26,611 27,818 1977-2015
- = 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