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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
2,453 2,326 2,308 2,091 1,965 1,795 1979-2013
Adjustments
74 -105 56 -29 164 -99 1979-2013
Revision Increases
324 456 419 355 608 335 1979-2013
Revision Decreases
491 338 288 225 655 215 1979-2013
Sales
70 152 157 259 224 87 2000-2013
Acquisitions
59 147 202 219 175 86 2000-2013
Extensions
349 270 181 106 122 86 1979-2013
New Field Discoveries
14 58 21 6 7 0 1979-2013
New Reservoir Discoveries in Old Fields
37 12 27 4 8 8 1979-2013
Estimated Production
471 475 479 394 331 284 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