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Dry Natural Gas Proved Reserves
(Billion Cubic Feet)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2005 2006 2007 2008 2009 2010 View
History
Proved Reserves as of Dec. 31
17,831 15,360 14,439 13,546 12,552 11,765 1990-2010
Adjustments
26 -39 -62 14 22 -123 1990-2010
Revision Increases
2,645 2,030 1,815 1,699 2,312 2,978 1990-2010
Revision Decreases
2,878 2,798 1,864 2,017 1,871 2,242 1990-2010
Sales
863 2,718 897 700 158 880 2000-2010
Acquisitions
749 2,575 1,185 615 181 1,003 2000-2010
Extensions
642 733 657 903 289 326 1990-2010
New Field Discoveries
632 111 608 311 308 68 1990-2010
New Reservoir Discoveries in Old Fields
546 410 368 532 300 237 1990-2010
Estimated Production
2,939 2,775 2,731 2,250 2,377 2,154 1990-2010
- = 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: 8/2/2012
Next Release Date: 8/30/2013