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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
965 1,171 1,476 1,486 1,549 2,581 1977-2017
Changes in Reserves During Year
             
Adjustments (+,-)
-29 -16 27 36 -52 97 1977-2017
Revision Increases (+)
174 183 272 163 342 149 1977-2017
Revision Decreases (-)
126 148 156 353 282 117 1977-2017
Sales (-)
41 6 5 44 10 31 2000-2017
Acquisitions (+)
27 48 25 57 20 610 2000-2017
Extensions and Discoveries (+)
        183 484 2016-2017
Extensions (+)
170 201 256 294 -- -- 1977-2017
New Field Discoveries (+)
0 0 1 0 -- -- 1977-2017
New Reservoir Discoveries in Old Fields (+)
0 35 1 0 -- -- 1977-2017
Estimated Production (-)
76 91 116 143 138 160 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