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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
11,468 12,207 12,806 14,958 15,524 11,204 1979-2012
Adjustments
79 -113 426 400 233 -1,035 1979-2012
Revision Increases
1,807 2,169 1,801 2,732 5,023 1,960 1979-2012
Revision Decreases
826 1,807 2,271 2,739 5,621 5,261 1979-2012
Sales
222 1,073 370 523 4,045 251 2000-2012
Acquisitions
402 1,097 252 985 4,056 388 2000-2012
Extensions
1,806 1,433 1,708 2,213 1,726 984 1979-2012
New Field Discoveries
0 2 0 52 2 0 1979-2012
New Reservoir Discoveries in Old Fields
104 2 43 52 277 8 1979-2012
Estimated Production
887 971 990 1,020 1,085 1,113 1979-2012
- = 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