OREANDA-NEWS. The Idemitsu Group's net sales for the nine months ended December 31, 2013 were JPN 3,659.3 billion, up 15.9% compared with the same period of the previous year, due partly to increased import prices for crude oil resulting from the weakened Japanese yen.

Operating income increased by 48.8% compared with the same period a year earlier to JPN 81.8 billion, affected partly by increased valuation gains on inventories resulting from the increased Japanese yen-denominated crude oil prices. Net non-operating expenses decreased due mainly to increased equity in earnings of equity-method investees, and ordinary income was JPN 79.7 billion, up 57.9% against the same period of the previous year.

Net extraordinary income for nine months ended December 31, 2013 increased compared with the corresponding period of the prior year, mainly due to insurance proceeds despite an impairment loss on oil field equipment. As a result, net income was JPN 42.7 billion, up 160.7% from the same period of the preceding year.