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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
26,544 30,529 33,371 36,385 32,318 32,773 1899-2016
Changes in Reserves During Year
             
Adjustments (+,-)
199 109 -620 516 1,155 262 1977-2016
Revision Increases (+)
4,555 4,319 4,030 5,315 4,192 5,224 1977-2016
Revision Decreases (-)
3,230 3,384 3,512 4,994 9,092 5,207 1977-2016
Sales (-)
808 734 1,327 2,157 885 1,125 2000-2016
Acquisitions (+)
1,288 1,150 1,787 2,420 798 1,460 2000-2016
Extensions and Discoveries (+)
          2,794 2016-2016
Extensions (+)
2,571 4,462 4,395 4,430 2,811   1977-2015
New Field Discoveries (+)
477 53 188 151 20   1977-2015
New Reservoir Discoveries in Old Fields (+)
59 122 319 207 38   1977-2015
Estimated Production (-)
1,834 2,112 2,418 2,874 3,104 2,953 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