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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
22,343 24,363 27,843 17,331 19,280 17,880 1977-2014
Adjustments
96 27 674 -1,078 269 -119 1977-2014
Revision Increases
1,904 1,577 3,693 336 3,338 740 1977-2014
Revision Decreases
1,458 1,274 2,157 8,168 769 1,417 1977-2014
Sales
31 1 10,556 529 93 614 2000-2014
Acquisitions
277 5 10,694 289 574 1,229 2000-2014
Extensions
2,992 3,457 3,034 387 188 193 1977-2014
New Field Discoveries
0 0 2 0 0 0 1977-2014
New Reservoir Discoveries in Old Fields
0 0 0 3 24 0 1977-2014
Estimated Production
1,718 1,771 1,904 1,752 1,582 1,412 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