Ratings agency Moody's believes recent new additions to Malaysian owner MISC's fleet will increase earnings next year.

The company affirmed a Baa2 rating for MISC, with a stable outlook.

"The Baa2 issuer rating balances MISC's operational alignment with its parent Petronas, its conservative financial policies and increasing exposure to long-term charters in its tanker and offshore businesses against its exposure to the highly volatile oil and gas shipping sector, which is currently pressuring MISC's earnings and cash flows," said Brian Grieser, a vice president at Moody's.