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Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2012 2013 2014 2015 2016 2017 View
History
Proved Reserves as of 12/31
3,761 5,677 6,043 5,193 5,256 5,473 1977-2017
Changes in Reserves During Year
             
Adjustments (+,-)
33 -49 -69 218 -110 79 1977-2017
Revision Increases (+)
740 991 683 374 690 406 1977-2017
Revision Decreases (-)
369 642 864 1,381 490 417 1977-2017
Sales (-)
236 44 567 306 171 199 2000-2017
Acquisitions (+)
218 353 310 62 93 6 2000-2017
Extensions and Discoveries (+)
        428 733 2016-2017
Extensions (+)
940 1,603 1,234 605 -- -- 1977-2017
New Field Discoveries (+)
9 4 3 0 -- -- 1977-2017
New Reservoir Discoveries in Old Fields (+)
27 13 30 6 -- -- 1977-2017
Estimated Production (-)
250 313 394 428 377 391 1977-2017
- = No Data Reported;  -- = Not Applicable;  NA = Not Available;  W = Withheld to avoid disclosure of individual company data.
Notes: The volumes in the table above are crude oil ONLY (aka Black Oil), excluding lease condensate. Miscellaneous includes Arizona, Florida (2017-present), Idaho, Maryland, Missouri, Nevada, New York, South Dakota, Tennessee, and Virginia. The production estimates in this table are based on data reported on Form EIA-23, "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: 11/28/2018
Next Release Date: 11/29/2019