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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
2004 2005 2006 2007 2008 2009 View
History
Proved Reserves as of Dec. 31
3,168 3,051 3,058 2,960 2,445 2,463 1979-2009
Adjustments
73 21 127 112 -84 98 1979-2009
Revision Increases
543 405 476 412 420 572 1979-2009
Revision Decreases
623 526 586 553 654 522 1979-2009
Sales
260 90 338 150 138 32 2000-2009
Acquisitions
230 192 498 278 138 36 2000-2009
Extensions
365 345 321 299 209 231 1979-2009
New Field Discoveries
4 6 11 0 36 4 1979-2009
New Reservoir Discoveries in Old Fields
80 141 151 101 61 56 1979-2009
Estimated Production
750 611 653 597 503 425 1979-2009
- = 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: 12/30/2010
Next Release Date: 6/15/2012