IDEMITSU KOSAN CO. LTD. revenue for the last year amounted to 65.67 B EUR, the most of which — 51.42 B EUR — came from its highest performing source at the moment, Fuel Oil, the year earlier bringing 38.75 B EUR. The greatest contribution to the revenue figure was made by Japan — last year it brought IDEMITSU KOSAN CO. LTD. 46.51 B EUR, and the year before that — 36.50 B EUR.