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Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2010 2011 2012 2013 2014 2015 View
History
Proved Reserves as of 12/31
23,267 26,544 30,529 33,371 36,385 32,318 1899-2015
Changes in Reserves During Year
             
Adjustments (+,-)
144 199 109 -620 516 1,155 1977-2015
Revision Increases (+)
3,429 4,555 4,319 4,030 5,315 4,192 1977-2015
Revision Decreases (-)
1,570 3,230 3,384 3,512 4,994 9,092 1977-2015
Sales (-)
725 808 734 1,327 2,157 885 2000-2015
Acquisitions (+)
1,330 1,288 1,150 1,787 2,420 798 2000-2015
Extensions (+)
1,495 2,571 4,462 4,395 4,430 2,811 1977-2015
New Field Discoveries (+)
88 477 53 188 151 20 1977-2015
New Reservoir Discoveries in Old Fields (+)
161 59 122 319 207 38 1977-2015
Estimated Production (-)
1,767 1,834 2,112 2,418 2,874 3,104 1977-2015
- = 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: 12/14/2016
Next Release Date: 11/30/2017