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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
2003 2004 2005 2006 2007 2008 View
History
Proved Reserves as of Dec. 31
168,593 173,551 185,072 190,776 215,121 226,012 1979-2008
Adjustments
2,121 191 1,567 1,000 714 -184 1979-2008
Revision Increases
17,736 24,107 20,081 16,268 28,004 28,998 1979-2008
Revision Decreases
19,705 24,121 18,613 20,957 15,664 27,810 1979-2008
Sales
9,553 10,579 7,977 22,178 14,403 7,249 2000-2008
Acquisitions
10,638 12,571 10,235 25,122 14,620 7,910 2000-2008
Extensions
16,378 18,161 21,037 22,024 27,157 26,312 1979-2008
New Field Discoveries
805 756 854 385 768 1,122 1979-2008
New Reservoir Discoveries in Old Fields
1,529 1,147 1,164 1,132 1,171 858 1979-2008
Estimated Production
17,376 17,275 16,827 17,092 18,022 19,066 1979-2008
- = 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, Nebraska, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 10/29/2009
Next Release Date: 10/29/2010