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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
1,413 1,309 1,593 1,711 1,557 1,169 2009-2020
Adjustments
86 11 161 30 -6 -29 2009-2020
Revision Increases
95 211 118 250 148 240 2009-2020
Revision Decreases
262 430 139 225 290 619 2009-2020
Sales
12 68 20 44 220 216 2009-2020
Acquisitions
58 177 76 102 251 366 2009-2020
Extensions and Discoveries
  110 217 176 155 41 2016-2020
Extensions
125 -- -- -- -- -- 2009-2020
New Field Discoveries
0 -- -- -- -- -- 2009-2020
New Reservoir Discoveries in Old Fields
0 -- -- -- -- -- 2009-2020
Estimated Production
128 115 129 171 192 171 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