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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
    480 530 525 584 2009-2012
Adjustments
    -1 7 -8 44 2009-2012
Revision Increases
    100 139 100 98 2009-2012
Revision Decreases
    69 93 43 67 2009-2012
Sales
    9 23 63 21 2009-2012
Acquisitions
    11 52 53 23 2009-2012
Extensions
    26 28 21 50 2009-2012
New Field Discoveries
    0 0 1 1 2009-2012
New Reservoir Discoveries in Old Fields
    3 6 2 1 2009-2012
Estimated Production
    68 66 68 70 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