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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
6,095 6,393 6,810 6,515 7,199 6,774 1979-2012
Adjustments
12 -11 67 -50 157 304 1979-2012
Revision Increases
1,085 376 1,181 776 649 1,284 1979-2012
Revision Decreases
326 491 499 163 304 1,929 1979-2012
Sales
490 260 90 543 776 1 2000-2012
Acquisitions
543 252 69 1 856 0 2000-2012
Extensions
713 761 108 89 514 358 1979-2012
New Field Discoveries
4 64 0 0 1 0 1979-2012
New Reservoir Discoveries in Old Fields
0 0 4 0 0 0 1979-2012
Estimated Production
340 393 423 405 413 441 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