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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
    18,749 21,459 25,098 30,051 2009-2012
Adjustments
    46 188 206 138 2009-2012
Revision Increases
    2,876 3,503 4,734 4,825 2009-2012
Revision Decreases
    1,110 1,881 3,553 3,546 2009-2012
Sales
    242 803 1,007 819 2009-2012
Acquisitions
    344 1,470 1,482 1,234 2009-2012
Extensions
    1,280 1,736 3,067 5,132 2009-2012
New Field Discoveries
    132 124 481 55 2009-2012
New Reservoir Discoveries in Old Fields
    95 169 88 129 2009-2012
Estimated Production
    1,719 1,796 1,859 2,195 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