TOKYO, Oct 7 (Reuters) - Idemitsu Kosan 5019.T, Japan's second-largest oil refiner, shut the 165,000 barrel-per-day crude distillation unit (CDU) at its Aichi refinery in central Japan on September 16 for planned maintenance, a company spokesperson said on Tuesday.
The refiner declined to provide a timeline for the unit's restart.
Its smaller rival Cosmo Oil, a unit of Cosmo Energy Holdings 5021.T, also shut the 100,000-bpd CDU at its Sakai refinery in western Japan on August 27 for scheduled maintenance, with operations expected to resume in October, a company spokesperson said.
Japan's largest refiner, Eneos Corp, a unit of Eneos Holdings 5020.T, shut the 172,100-bpd No. 2 CDU at its Kawasaki refinery, near Tokyo, on August 16 for scheduled turnaround, according to a company spokesperson.
The company plans to restart the unit in late November.
(Reporting by Yuka Obayashi; Editing by Subhranshu Sahu)
((Yuka.Obayashi@thomsonreuters.com; +813-4563-2761;))