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Nonassociated Natural Gas Proved Reserves, Wet After Lease Separation
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2008 2009 2010 2011 2012 2013 View
History
Proved Reserves as of Dec. 31
3,467 6,885 13,924 26,585 36,418 49,809 1979-2013
Adjustments
-187 52 -303 -94 -292 849 1979-2013
Revision Increases
650 668 2,904 6,971 5,466 7,002 1979-2013
Revision Decreases
480 493 1,935 4,883 6,390 7,168 1979-2013
Sales
277 52 683 805 5 104 2000-2013
Acquisitions
168 591 855 1,897 12 354 2000-2013
Extensions
453 2,788 5,824 10,328 12,868 15,627 1979-2013
New Field Discoveries
61 128 51 166 416 36 1979-2013
New Reservoir Discoveries in Old Fields
33 0 911 324 0 80 1979-2013
Estimated Production
201 264 585 1,243 2,242 3,285 1979-2013
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Illinois, Indiana, Maryland, Missouri, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/4/2014
Next Release Date: 12/31/2015