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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
2005 2006 2007 2008 2009 2010 View
History
Proved Reserves as of Dec. 31
183,197 189,329 213,851 224,873 249,406 280,880 1979-2010
Adjustments
1,568 1,049 713 -183 5,045 1,776 1979-2010
Revision Increases
19,965 16,236 27,934 28,849 26,951 37,019 1979-2010
Revision Decreases
18,484 20,690 15,561 27,657 31,762 34,180 1979-2010
Sales
7,903 22,178 14,395 7,249 3,809 9,304 2000-2010
Acquisitions
10,156 25,122 14,615 7,910 3,477 10,879 2000-2010
Extensions
20,976 21,978 27,135 26,294 40,829 43,610 1979-2010
New Field Discoveries
832 385 768 1,122 1,160 793 1979-2010
New Reservoir Discoveries in Old Fields
1,154 1,130 1,171 853 2,487 1,515 1979-2010
Estimated Production
16,614 16,900 17,858 18,917 19,845 20,634 1979-2010
- = 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: 8/2/2012
Next Release Date: 8/30/2013