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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
23,058 24,119 24,821 20,666 22,381 20,851 1977-2014
Adjustments
306 449 801 -363 -272 627 1977-2014
Revision Increases
1,601 2,973 2,509 2,137 4,110 3,461 1977-2014
Revision Decreases
4,044 3,645 2,921 4,598 2,329 5,007 1977-2014
Sales
374 242 1,244 1,667 584 693 2000-2014
Acquisitions
437 229 1,218 445 953 567 2000-2014
Extensions
3,346 2,838 2,015 1,563 1,352 1,070 1977-2014
New Field Discoveries
8 22 18 9 0 0 1977-2014
New Reservoir Discoveries in Old Fields
0 27 0 0 12 6 1977-2014
Estimated Production
1,524 1,590 1,694 1,681 1,527 1,561 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