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Crude Oil plus Lease Condensate Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
  2009 2010 2011 2012 2013 View
History
Proved Reserves as of Dec. 31
  343 342 328 370 396 2009-2013
Adjustments
  4 13 -6 16 -1 2009-2013
Revision Increases
  76 57 70 60 56 2009-2013
Revision Decreases
  57 73 34 46 52 2009-2013
Sales
  7 7 34 10 7 2009-2013
Acquisitions
  7 26 17 18 24 2009-2013
Extensions
  24 25 17 49 49 2009-2013
New Field Discoveries
  0 0 1 1 0 2009-2013
New Reservoir Discoveries in Old Fields
  3 5 2 1 4 2009-2013
Estimated Production
  48 47 47 47 47 2009-2013
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Missouri, Nevada, New York, South Dakota, Tennessee, and Virginia.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/4/2014
Next Release Date: 12/31/2015