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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
2,844 2,876 2,519 3,029 2,718 2,926 1977-2014
Adjustments
159 3 -36 270 -160 370 1977-2014
Revision Increases
617 490 604 718 275 326 1977-2014
Revision Decreases
610 615 504 491 502 568 1977-2014
Sales
44 69 586 52 85 209 2000-2014
Acquisitions
48 243 367 100 272 286 2000-2014
Extensions
285 280 100 306 247 262 1977-2014
New Field Discoveries
4 1 47 5 0 32 1977-2014
New Reservoir Discoveries in Old Fields
55 93 24 13 21 56 1977-2014
Estimated Production
469 394 373 359 379 347 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