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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
107 462 1,002 1,263 1,404 1,145 1977-2015
Changes in Reserves During Year
             
Adjustments (+,-)
-3 13 15 -55 -25 11 1977-2015
Revision Increases (+)
10 11 94 229 108 174 1977-2015
Revision Decreases (-)
1 8 36 255 109 338 1977-2015
Sales (-)
0 3 1 40 248 1 2000-2015
Acquisitions (+)
2 135 28 81 257 0 2000-2015
Extensions (+)
57 205 489 411 278 110 1977-2015
New Field Discoveries (+)
1 0 0 0 0 0 1977-2015
New Reservoir Discoveries in Old Fields (+)
0 30 25 11 48 0 1977-2015
Estimated Production (-)
10 28 74 121 168 215 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