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Dry Natural Gas Proved Reserves
(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
183,460 186,946 189,044 192,513 204,385 211,085 1925-2006
Adjustments
2,742 3,727 2,841 -114 1,887 743 1977-2006
Revision Increases
18,358 20,255 19,912 26,893 22,353 20,833 1977-2006
Revision Decreases
20,676 19,318 21,550 26,149 19,654 22,669 1977-2006
Sales
11,380 10,166 10,174 11,106 9,130 22,850 2000-2006
Acquisitions
14,010 10,546 11,208 12,950 11,674 25,846 2000-2006
Extensions
16,380 14,769 16,454 18,198 21,050 21,778 1977-2006
New Field Discoveries
3,578 1,332 1,222 759 942 409 1977-2006
New Reservoir Discoveries in Old Fields
2,800 1,694 1,610 1,206 1,208 1,155 1977-2006
Estimated Production
19,779 19,353 19,425 19,168 18,458 18,545 1977-2006
Release Date: 1/2/2008
Next Release Date: 1/31/2009
- = 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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