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Crude Oil 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 12/31
4,033 4,789 5,285 5,103 4,410 4,515 1980-2021
Changes in Reserves During Year
             
Adjustments (+,-)
-15 175 35 40 -69 1 1980-2021
Revision Increases (+)
789 1,063 949 548 326 581 1980-2021
Revision Decreases (-)
590 224 340 160 332 37 1980-2021
Divestitures (-)
97 30 134 536 0 2 2000-2021
Acquisitions (+)
75 150 217 434 6 9 2000-2021
Extensions and Discoveries (+)
100 221 404 183 15 163 2016-2021
Extensions (+)
-- -- -- --     1980-2019
New Field Discoveries (+)
-- -- -- --     1980-2019
New Reservoir Discoveries in Old Fields (+)
-- -- -- --     1980-2019
Estimated Production (-)
564 599 635 691 605 610 1980-2021
- = 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. The volumes in the table above are crude oil ONLY (aka Black Oil), excluding lease condensate. The production estimates in this table are based on data reported on Form EIA-23L, "Annual Survey of Domestic Oil and Gas Reserves." They may differ from the official Energy Information Administration production data for crude oil contained in the "Petroleum Supply Annual."  See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 12/30/2022
Next Release Date: 12/29/2023