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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
2011 2012 2013 2014 2015 2016 View
History
Proved Reserves as of Dec. 31
252 354 359 352 323 311 2009-2016
Adjustments
0 -10 6 8 -5 -62 2009-2016
Revision Increases
80 181 64 399 89 168 2009-2016
Revision Decreases
86 41 19 340 50 48 2009-2016
Sales
0 6 11 5 0 1 2009-2016
Acquisitions
4 5 13 4 4 0 2009-2016
Extensions and Discoveries
          14 2016-2016
Extensions
0 31 21 5 7 -- 2009-2016
New Field Discoveries
0 0 0 0 0 -- 2009-2016
New Reservoir Discoveries in Old Fields
0 14 2 0 1 -- 2009-2016
Estimated Production
50 72 71 78 75 83 2009-2016
- = 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: 01/31/2018
Next Release Date: 11/23/2018