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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
295,787 324,643 298,457 330,948 361,959 303,164 1977-2015
Adjustments
508 1,732 -1,586 548 2,277 9,769 1977-2015
Revision Increases
39,899 52,673 39,831 47,021 51,897 36,841 1977-2015
Revision Decreases
36,119 53,267 84,280 42,061 50,778 111,962 1977-2015
Sales
10,022 43,150 9,316 9,467 20,208 14,016 2000-2015
Acquisitions
12,748 46,020 7,518 10,538 26,482 15,230 2000-2015
Extensions
44,769 45,905 45,122 49,039 44,454 31,206 1977-2015
New Field Discoveries
850 947 762 256 632 29 1977-2015
New Reservoir Discoveries in Old Fields
1,668 1,224 376 1,565 2,562 1,631 1977-2015
Estimated Production
21,922 23,228 24,613 24,948 26,307 27,523 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