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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
928 990 884 822 806 550 1979-2012
Adjustments
33 1 6 -8 75 67 1979-2012
Revision Increases
48 92 85 67 93 79 1979-2012
Revision Decreases
49 87 232 59 140 294 1979-2012
Sales
22 2 7 25 11 159 2000-2012
Acquisitions
70 4 2 11 10 107 2000-2012
Extensions
147 156 133 33 24 0 1979-2012
New Field Discoveries
0 0 0 0 0 0 1979-2012
New Reservoir Discoveries in Old Fields
1 2 0 0 0 0 1979-2012
Estimated Production
95 104 93 81 67 56 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