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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
2010 2011 2012 2013 2014 2015 View
History
Proved Reserves as of Dec. 31
3,722 3,852 3,352 2,898 2,857 2,104 2009-2015
Adjustments
0 1 -1 1 1 65 2009-2015
Revision Increases
397 362 84 87 239 119 2009-2015
Revision Decreases
76 129 451 392 196 810 2009-2015
Sales
0 17 0 0 125 12 2009-2015
Acquisitions
0 79 0 2 187 5 2009-2015
Extensions
30 40 59 34 35 54 2009-2015
New Field Discoveries
0 0 0 0 0 0 2009-2015
New Reservoir Discoveries in Old Fields
0 0 0 0 0 0 2009-2015
Estimated Production
195 206 191 186 182 174 2009-2015
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: Miscellaneous States includes Arizona, Idaho, Missouri, Nevada, New York, South Dakota, Tennessee, and Virginia.  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/14/2016
Next Release Date: 11/30/2017