Production process and the raw material oil composition used in this graphite electrode needle coke

The present invention provides a feedstock composition needle coke for graphite electrodes, 10 vol% distillation temperature in the distillation characteristic is at 280 ° C. or more, separated into aromatics and non-aromatics by elution chromatography when, with the molecular weight of and the aromatic component content of 30 to 80 wt% of aromatic components to the total weight of the oil composition is 255 to 1300, the normal-paraffin content of the non-aromatic components providing raw material oil composition characterized in that it is 5 parts by mass or more with respect to 100 parts by weight aromatic components.