JAPAN PETROLEUM EXPLORATION CO LTD revenue for the last year amounted to 325.86 B JPY, the most of which — 87.81 B JPY — came from its highest performing source at the moment, Crude Oil, the year earlier bringing 55.70 B JPY. The greatest contribution to the revenue figure was made by Japan — last year it brought JAPAN PETROLEUM EXPLORATION CO LTD 256.44 B JPY, and the year before that — 303.01 B JPY.