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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
2014 2015 2016 2017 2018 2019 View
History
Proved Reserves as of Dec. 31
1,451 1,413 1,309 1,593 1,711 1,557 2009-2019
Adjustments
51 86 11 161 30 -6 2009-2019
Revision Increases
356 95 211 118 250 148 2009-2019
Revision Decreases
162 262 430 139 225 290 2009-2019
Sales
12 12 68 20 44 220 2009-2019
Acquisitions
5 58 177 76 102 251 2009-2019
Extensions and Discoveries
    110 217 176 155 2016-2019
Extensions
144 125 -- -- -- -- 2009-2019
New Field Discoveries
0 0 -- -- -- -- 2009-2019
New Reservoir Discoveries in Old Fields
0 0 -- -- -- -- 2009-2019
Estimated Production
102 128 115 129 171 192 2009-2019
- = 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: 1/11/2021
Next Release Date: 12/20/2021