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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
2008 2009 2010 2011 2012 2013 View
History
Proved Reserves as of Dec. 31
2,292 1,837 2,101 2,766 3,986 4,348 1979-2013
Adjustments
57 -101 18 153 15 -39 1979-2013
Revision Increases
276 194 321 397 212 719 1979-2013
Revision Decreases
384 364 308 572 516 990 1979-2013
Sales
105 23 19 167 11 335 2000-2013
Acquisitions
113 5 29 449 172 361 2000-2013
Extensions
370 80 123 639 1,659 1,023 1979-2013
New Field Discoveries
7 0 327 0 0 0 1979-2013
New Reservoir Discoveries in Old Fields
24 13 10 36 23 7 1979-2013
Estimated Production
315 259 237 270 334 384 1979-2013
- = 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: 12/4/2014
Next Release Date: 12/31/2015