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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
17,320 17,020 18,512 18,201 17,934 17,245 1977-2007
Adjustments
199 -104 126 44 91 136 1977-2007
Revision Increases
2,262 1,547 2,757 2,071 1,273 2,534 1977-2007
Revision Decreases
2,239 1,941 1,771 2,269 1,203 2,431 1977-2007
Sales
1,029 652 682 963 6,248 570 2000-2007
Acquisitions
1,052 852 1,323 1,238 6,278 376 2000-2007
Extensions
1,161 1,394 1,243 1,048 793 585 1977-2007
New Field Discoveries
6 3 20 10 35 20 1977-2007
New Reservoir Discoveries in Old Fields
18 16 3 3 140 10 1977-2007
Estimated Production
1,524 1,415 1,527 1,493 1,426 1,349 1977-2007
- = 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