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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
2013 2014 2015 2016 2017 2018 View
History
Proved Reserves as of Dec. 31
1,171 1,451 1,413 1,309 1,593 1,711 2009-2018
Adjustments
-44 51 86 11 161 30 2009-2018
Revision Increases
389 356 95 211 118 250 2009-2018
Revision Decreases
112 162 262 430 139 225 2009-2018
Sales
48 12 12 68 20 44 2009-2018
Acquisitions
48 5 58 177 76 102 2009-2018
Extensions and Discoveries
      110 217 176 2016-2018
Extensions
239 144 125 -- -- -- 2009-2018
New Field Discoveries
0 0 0 -- -- -- 2009-2018
New Reservoir Discoveries in Old Fields
9 0 0 -- -- -- 2009-2018
Estimated Production
70 102 128 115 129 171 2009-2018
- = 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: 12/12/2019
Next Release Date: 11/20/2020