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Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area: Period:
 Annual 
 Show Data By:
Data Series Area
2009 2010 2011 2012 2013 2014 View
History
Proved Reserves as of 12/31
20,682 23,267 26,544 30,529 33,371 36,385 1899-2014
Changes in Reserves During Year
             
Adjustments (+,-)
-4 144 199 109 -620 516 1977-2014
Revision Increases (+)
2,877 3,429 4,555 4,319 4,030 5,315 1977-2014
Revision Decreases (-)
1,014 1,570 3,230 3,384 3,512 4,994 1977-2014
Sales (-)
212 725 808 734 1,327 2,157 2000-2014
Acquisitions (+)
307 1,330 1,288 1,150 1,787 2,420 2000-2014
Extensions (+)
1,155 1,495 2,571 4,462 4,395 4,430 1977-2014
New Field Discoveries (+)
122 88 477 53 188 151 1977-2014
New Reservoir Discoveries in Old Fields (+)
81 161 59 122 319 207 1977-2014
Estimated Production (-)
1,751 1,767 1,834 2,112 2,418 2,874 1977-2014
- = 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: 11/19/2015
Next Release Date: 12/31/2016