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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
2016 2017 2018 2019 2020 2021 View
History
Proved Reserves as of Dec. 31
494 516 484 449 375 414 2009-2021
Adjustments
43 -11 4 33 26 0 2009-2021
Revision Increases
52 77 45 18 67 79 2009-2021
Revision Decreases
105 36 43 56 142 21 2009-2021
Divestitures
14 19 6 3 13 0 2009-2021
Acquisitions
12 42 6 4 15 3 2009-2021
Extensions and Discoveries
28 20 12 14 10 12 2016-2021
Extensions
-- -- -- -- -- -- 2009-2021
New Field Discoveries
-- -- -- -- -- -- 2009-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 2009-2021
Estimated Production
56 51 50 45 37 34 2009-2021
- = 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: 12/30/2022
Next Release Date: 12/29/2023