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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
2015 2016 2017 2018 2019 2020 View
History
Proved Reserves as of Dec. 31
35,230 35,213 41,990 47,053 47,107 38,212 2009-2020
Adjustments
1,115 206 752 764 -630 1,244 2009-2020
Revision Increases
4,737 5,651 5,991 4,691 3,955 3,021 2009-2020
Revision Decreases
10,345 6,119 3,279 4,278 6,334 12,647 2009-2020
Sales
1,019 1,254 1,350 1,364 2,022 2,161 2009-2020
Acquisitions
989 1,518 2,385 2,040 2,906 2,495 2009-2020
Extensions and Discoveries
  3,204 5,679 7,194 6,669 3,242 2016-2020
Extensions
3,186 -- -- -- -- -- 2009-2020
New Field Discoveries
20 -- -- -- -- -- 2009-2020
New Reservoir Discoveries in Old Fields
41 -- -- -- -- -- 2009-2020
Estimated Production
3,427 3,223 3,401 3,984 4,490 4,154 2009-2020
- = 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: 1/13/2022
Next Release Date: 12/30/2022