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Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2011 2012 2013 2014 2015 2016 View
History
Proved Reserves as of 12/31
879 934 1,019 1,241 1,262 1,693 1977-2016
Changes in Reserves During Year
             
Adjustments (+,-)
30 -68 0 -43 66 57 1977-2016
Revision Increases (+)
60 74 109 156 133 371 1977-2016
Revision Decreases (-)
74 158 171 175 429 220 1977-2016
Sales (-)
79 9 76 24 32 25 2000-2016
Acquisitions (+)
27 50 76 62 43 100 2000-2016
Extensions and Discoveries (+)
          264 2016-2016
Extensions (+)
263 226 203 282 353   1977-2015
New Field Discoveries (+)
0 0 1 0 0   1977-2015
New Reservoir Discoveries in Old Fields (+)
0 1 26 61 0   1977-2015
Estimated Production (-)
58 61 83 97 113 116 1977-2016
- = 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, Idaho, 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: 01/31/2018
Next Release Date: 11/23/2018