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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
17,020 18,512 18,201 17,934 17,245 16,285 1977-2008
Adjustments
-104 126 44 91 136 -6 1977-2008
Revision Increases
1,547 2,757 2,071 1,273 2,534 2,735 1977-2008
Revision Decreases
1,941 1,771 2,269 1,203 2,431 2,657 1977-2008
Sales
652 682 963 6,248 570 402 2000-2008
Acquisitions
852 1,323 1,238 6,278 376 192 2000-2008
Extensions
1,394 1,243 1,048 793 585 520 1977-2008
New Field Discoveries
3 20 10 35 20 0 1977-2008
New Reservoir Discoveries in Old Fields
16 3 3 140 10 7 1977-2008
Estimated Production
1,415 1,527 1,493 1,426 1,349 1,349 1977-2008
- = 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