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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
3,051 3,058 2,960 2,445 2,463 2,496 1979-2010
Adjustments
21 127 112 -84 98 -42 1979-2010
Revision Increases
405 476 412 420 572 399 1979-2010
Revision Decreases
526 586 553 654 522 498 1979-2010
Sales
90 338 150 138 32 55 2000-2010
Acquisitions
192 498 278 138 36 205 2000-2010
Extensions
345 321 299 209 231 266 1979-2010
New Field Discoveries
6 11 0 36 4 1 1979-2010
New Reservoir Discoveries in Old Fields
141 151 101 61 56 95 1979-2010
Estimated Production
611 653 597 503 425 338 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