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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
755 813 954 1,030 917 853 1977-2010
Adjustments
5 -26 37 12 26 1 1977-2010
Revision Increases
57 96 53 108 92 77 1977-2010
Revision Decreases
27 40 50 96 250 70 1977-2010
Sales
17 44 24 2 17 31 2000-2010
Acquisitions
54 30 78 4 2 13 2000-2010
Extensions
75 119 146 155 132 33 1977-2010
New Field Discoveries
0 0 0 2 2 0 1977-2010
New Reservoir Discoveries in Old Fields
3 6 1 3 0 0 1977-2010
Estimated Production
86 83 100 110 100 87 1977-2010
- = 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