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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
2013 2014 2015 2016 2017 2018 View
History
Proved Reserves as of Dec. 31
5,276 5,022 4,523 4,188 4,948 5,443 2009-2018
Adjustments
-246 147 -20 -22 190 56 2009-2018
Revision Increases
666 1,066 725 805 1,077 969 2009-2018
Revision Decreases
369 1,159 749 612 231 370 2009-2018
Sales
305 72 55 104 31 135 2009-2018
Acquisitions
240 77 60 75 150 220 2009-2018
Extensions and Discoveries
      108 222 404 2016-2018
Extensions
164 87 69 -- -- -- 2009-2018
New Field Discoveries
181 140 20 -- -- -- 2009-2018
New Reservoir Discoveries in Old Fields
152 7 19 -- -- -- 2009-2018
Estimated Production
489 547 568 585 617 649 2009-2018
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: W -- Individual state volumes are withheld to avoid disclosure of operator-level reserves data, due to statistical precision requirements, or due to other data quality reasons. The individual state volumes are included in the U.S. Total volume  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/12/2019
Next Release Date: 11/20/2020