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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
5,616 10,852 14,152 16,328 10,957 13,389 1979-2013
Adjustments
-67 -8 -31 705 -778 -53 1979-2013
Revision Increases
1,247 1,907 1,060 581 1,749 472 1979-2013
Revision Decreases
161 621 301 311 6,603 280 1979-2013
Sales
19 49 393 6,724 1 4 2000-2013
Acquisitions
5 36 807 6,882 6 9 2000-2013
Extensions
1,755 4,629 3,079 2,094 1,388 3,419 1979-2013
New Field Discoveries
0 0 0 0 0 0 1979-2013
New Reservoir Discoveries in Old Fields
41 36 27 23 11 1 1979-2013
Estimated Production
454 694 948 1,074 1,143 1,132 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