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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
2007 2008 2009 2010 2011 2012 View
History
Proved Reserves as of Dec. 31
10,033 8,786 7,633 6,916 5,374 3,989 1990-2012
Adjustments
-46 -1 2 -41 73 -361 1990-2012
Revision Increases
1,240 1,131 1,511 2,054 984 1,086 1990-2012
Revision Decreases
1,561 1,631 1,400 1,433 1,711 1,506 1990-2012
Sales
763 672 142 827 266 413 2000-2012
Acquisitions
987 558 165 784 418 533 2000-2012
Extensions
539 637 208 246 66 120 1990-2012
New Field Discoveries
575 228 96 65 66 22 1990-2012
New Reservoir Discoveries in Old Fields
325 248 186 95 38 28 1990-2012
Estimated Production
2,178 1,745 1,779 1,660 1,210 894 1990-2012
- = 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, Nevada, Oregon, South Dakota, and Tennessee.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 4/10/2014
Next Release Date: 4/30/2015