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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
8,210 7,803 6,961 7,301 9,993 9,467 1979-2012
Adjustments
62 -47 -94 38 434 892 1979-2012
Revision Increases
980 1,064 798 1,129 2,390 1,032 1979-2012
Revision Decreases
854 1,684 1,456 882 1,133 2,238 1979-2012
Sales
1,895 191 273 219 964 552 2000-2012
Acquisitions
1,446 314 324 189 1,319 68 2000-2012
Extensions
1,065 1,168 530 984 1,543 1,263 1979-2012
New Field Discoveries
33 88 48 25 7 1 1979-2012
New Reservoir Discoveries in Old Fields
219 66 324 3 24 5 1979-2012
Estimated Production
1,210 1,185 1,043 927 928 997 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