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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
5,171 5,282 5,276 5,022 4,523 4,188 2009-2016
Adjustments
-1 -153 -246 147 -20 -22 2009-2016
Revision Increases
1,966 1,264 666 1,066 725 805 2009-2016
Revision Decreases
1,455 807 369 1,159 749 612 2009-2016
Sales
42 193 305 72 55 104 2009-2016
Acquisitions
56 288 240 77 60 75 2009-2016
Extensions and Discoveries
          108 2016-2016
Extensions
29 145 164 87 69 -- 2009-2016
New Field Discoveries
410 7 181 140 20 -- 2009-2016
New Reservoir Discoveries in Old Fields
2 34 152 7 19 -- 2009-2016
Estimated Production
504 474 489 547 568 585 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