Source: Dow Jones & Company  

Release: Wall Street Journal  

Units:  Dollars per Barrel, Not Seasonally Adjusted

Frequency:  Monthly

Prior to 1982 equals the posted price.
On August 5, 2013, the Wall Street Journal discontinued publication of some of its commodity energy prices. As a current substitute, see the monthly oil spot prices reported by the U.S. Department of Energy, Energy Information Administration at https://fred.stlouisfed.org/series/MCOILWTICO

Copyright, 2016, Dow Jones & Company