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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
5,674 7,014 9,614 10,468 12,272 11,759 1977-2015
Changes in Reserves During Year
             
Adjustments (+,-)
-54 107 208 -120 213 462 1977-2015
Revision Increases (+)
657 692 1,076 1,220 1,855 2,126 1977-2015
Revision Decreases (-)
315 593 816 1,290 1,555 3,406 1977-2015
Sales (-)
234 286 216 520 688 175 2000-2015
Acquisitions (+)
421 605 464 646 958 419 2000-2015
Extensions (+)
499 1,188 2,418 1,620 1,910 1,151 1977-2015
New Field Discoveries (+)
44 32 23 3 9 0 1977-2015
New Reservoir Discoveries in Old Fields (+)
7 34 57 67 83 14 1977-2015
Estimated Production (-)
357 439 614 772 981 1,104 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