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Dry Natural Gas Proved Reserves
(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
45,730 49,955 56,507 61,836 72,091 77,546 1981-2008
Adjustments
1,289 674 561 835 227 140 1981-2008
Revision Increases
4,462 7,442 6,008 6,392 9,325 8,954 1981-2008
Revision Decreases
5,100 6,397 5,637 7,853 4,818 8,636 1981-2008
Sales
2,552 2,780 4,098 4,603 5,790 3,087 2000-2008
Acquisitions
2,878 4,137 5,024 6,366 6,244 3,442 2000-2008
Extensions
5,044 5,891 9,640 9,467 10,717 11,001 1981-2008
New Field Discoveries
195 264 138 80 78 472 1981-2008
New Reservoir Discoveries in Old Fields
383 312 340 253 535 178 1981-2008
Estimated Production
5,166 5,318 5,424 5,608 6,263 7,009 1981-2008
- = 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