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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
573 823 835 658 453 477 2009-2021
Adjustments
8 -52 11 6 43 -28 2009-2021
Revision Increases
83 260 101 50 64 64 2009-2021
Revision Decreases
92 35 61 44 279 43 2009-2021
Divestitures
15 75 12 377 6 7 2009-2021
Acquisitions
135 188 20 226 3 14 2009-2021
Extensions and Discoveries
7 9 5 17 21 72 2016-2021
Extensions
-- -- -- -- -- -- 2009-2021
New Field Discoveries
-- -- -- -- -- -- 2009-2021
New Reservoir Discoveries in Old Fields
-- -- -- -- -- -- 2009-2021
Estimated Production
47 45 52 55 51 48 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