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Natural Gas Proved Reserves, Wet After Lease Separation
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2001 2002 2003 2004 2005 2006 View
History
Proved Reserves as of Dec. 31
191,743 195,561 197,145 201,200 213,308 220,416 1979-2006
Adjustments
1,849 4,006 2,323 170 1,693 946 1979-2006
Revision Increases
19,179 21,240 20,780 28,116 23,362 21,640 1979-2006
Revision Decreases
21,617 20,202 22,495 27,291 20,647 23,739 1979-2006
Sales
11,885 10,665 10,593 11,583 9,632 23,904 2000-2006
Acquisitions
14,600 11,093 11,700 13,558 12,306 27,082 2000-2006
Extensions
17,183 15,468 17,195 19,068 22,069 22,834 1979-2006
New Field Discoveries
3,668 1,374 1,252 790 973 425 1979-2006
New Reservoir Discoveries in Old Fields
2,898 1,752 1,653 1,244 1,243 1,197 1979-2006
Estimated Production
20,642 20,248 20,231 20,017 19,259 19,373 1979-2006
Last Updated 06/27/2008
- = No Data Reported;  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.
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