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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
3,269 5,616 10,852 14,152 16,328 10,957 1979-2012
Adjustments
-22 -67 -8 -31 705 -778 1979-2012
Revision Increases
310 1,247 1,907 1,060 581 1,749 1979-2012
Revision Decreases
139 161 621 301 311 6,603 1979-2012
Sales
298 19 49 393 6,724 1 2000-2012
Acquisitions
280 5 36 807 6,882 6 2000-2012
Extensions
1,149 1,755 4,629 3,079 2,094 1,388 1979-2012
New Field Discoveries
0 0 0 0 0 0 1979-2012
New Reservoir Discoveries in Old Fields
27 41 36 27 23 11 1979-2012
Estimated Production
265 454 694 948 1,074 1,143 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