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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
263,408 295,787 324,643 298,457 330,948 361,959 1977-2014
Adjustments
5,095 508 1,732 -1,586 548 2,277 1977-2014
Revision Increases
29,548 39,899 52,673 39,831 47,021 51,897 1977-2014
Revision Decreases
32,927 36,119 53,267 84,280 42,061 50,778 1977-2014
Sales
4,104 10,022 43,150 9,316 9,467 20,208 2000-2014
Acquisitions
3,968 12,748 46,020 7,518 10,538 26,482 2000-2014
Extensions
42,137 44,769 45,905 45,122 49,039 44,454 1977-2014
New Field Discoveries
1,372 850 947 762 256 632 1977-2014
New Reservoir Discoveries in Old Fields
2,598 1,668 1,224 376 1,565 2,562 1977-2014
Estimated Production
21,236 21,922 23,228 24,613 24,948 26,307 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