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Nonassociated Natural Gas Proved Reserves, Wet After Lease Separation
(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
17,337 17,735 19,225 21,155 23,115 26,873 1979-2010
Adjustments
364 -97 17 85 922 -93 1979-2010
Revision Increases
3,070 1,435 1,965 2,774 2,716 3,271 1979-2010
Revision Decreases
2,937 1,881 1,363 2,527 3,661 3,613 1979-2010
Sales
514 858 1,514 413 396 164 2000-2010
Acquisitions
694 1,254 1,554 591 344 1,535 2000-2010
Extensions
1,878 2,136 2,422 3,066 3,630 4,492 1979-2010
New Field Discoveries
1 0 6 22 0 54 1979-2010
New Reservoir Discoveries in Old Fields
50 13 59 90 189 1 1979-2010
Estimated Production
1,570 1,604 1,656 1,758 1,784 1,725 1979-2010
- = 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