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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
2,812 2,887 2,674 2,030 1,422 1,750 1979-2013
Adjustments
85 103 -17 -48 -271 115 1979-2013
Revision Increases
196 130 40 183 45 170 1979-2013
Revision Decreases
139 793 576 661 294 12 1979-2013
Sales
11 0 0 106 0 1 2000-2013
Acquisitions
14 0 34 89 0 1 2000-2013
Extensions
210 748 408 4 0 142 1979-2013
New Field Discoveries
0 0 0 2 0 0 1979-2013
New Reservoir Discoveries in Old Fields
0 0 0 0 0 0 1979-2013
Estimated Production
97 113 102 107 88 87 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