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Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2002 2003 2004 2005 2006 2007 View
History
Proved Reserves as of Dec. 31
44,297 45,730 49,955 56,507 61,836 72,091 1981-2007
Adjustments
765 1,289 674 561 835 227 1981-2007
Revision Increases
4,734 4,462 7,442 6,008 6,392 9,325 1981-2007
Revision Decreases
4,904 5,100 6,397 5,637 7,853 4,818 1981-2007
Sales
3,889 2,552 2,780 4,098 4,603 5,790 2000-2007
Acquisitions
4,249 2,878 4,137 5,024 6,366 6,244 2000-2007
Extensions
4,404 5,044 5,891 9,640 9,467 10,717 1981-2007
New Field Discoveries
84 195 264 138 80 78 1981-2007
New Reservoir Discoveries in Old Fields
365 383 312 340 253 535 1981-2007
Estimated Production
5,038 5,166 5,318 5,424 5,608 6,263 1981-2007
- = 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: 11/10/2008
Next Release Date: 10/16/2009