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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 View
History
Proved Reserves as of Dec. 31
    855 823 919 932 2009-2012
Adjustments
    19 25 21 -18 2009-2012
Revision Increases
    123 124 109 68 2009-2012
Revision Decreases
    55 138 74 86 2009-2012
Sales
    6 81 46 7 2009-2012
Acquisitions
    0 58 86 19 2009-2012
Extensions
    35 32 55 93 2009-2012
New Field Discoveries
    0 1 0 0 2009-2012
New Reservoir Discoveries in Old Fields
    0 0 0 1 2009-2012
Estimated Production
    51 53 55 57 2009-2012
- = 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: 4/10/2014
Next Release Date: 4/30/2015