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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
3,570 3,914 4,438 4,504 4,503 4,244 1981-2014
Changes in Reserves During Year
             
Adjustments (+,-)
6 -6 -2 -90 -264 121 1981-2014
Revision Increases (+)
576 746 1,831 1,047 544 625 1981-2014
Revision Decreases (-)
143 155 1,328 717 308 796 1981-2014
Sales (-)
15 41 34 180 265 57 2000-2014
Acquisitions (+)
13 92 29 234 210 65 2000-2014
Extensions (+)
153 57 27 112 138 79 1981-2014
New Field Discoveries (+)
34 8 408 7 179 132 1981-2014
New Reservoir Discoveries in Old Fields (+)
52 133 1 20 149 6 1981-2014
Estimated Production (-)
494 490 408 367 384 434 1981-2014
- = 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