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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
2007 2008 2009 2010 2011 2012 View
History
Proved Reserves as of Dec. 31
3,247 3,467 6,885 13,924 26,585 36,418 1979-2012
Adjustments
77 -187 52 -303 -94 -292 1979-2012
Revision Increases
318 650 668 2,904 6,971 5,466 1979-2012
Revision Decreases
271 480 493 1,935 4,883 6,390 1979-2012
Sales
4 277 52 683 805 5 2000-2012
Acquisitions
40 168 591 855 1,897 12 2000-2012
Extensions
337 453 2,788 5,824 10,328 12,868 1979-2012
New Field Discoveries
7 61 128 51 166 416 1979-2012
New Reservoir Discoveries in Old Fields
3 33 0 911 324 0 1979-2012
Estimated Production
173 201 264 585 1,243 2,242 1979-2012
- = 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: 4/10/2014
Next Release Date: 4/30/2015