May 29 (Reuters) - Chevron shareholders on Wednesday voted to re-elect all 12 sitting directors to its board, in a sign of support for the oil major.

CEO Michael Wirth said the company is moving ahead on the U.S. Federal Trade Commission's review of its proposed buyout of oil producer Hess Corp in the coming weeks.

The $53 billion deal requires U.S. regulatory approval and faces a challenge by Exxon Mobil and CNOOC, which claim they have pre-emption rights to any sale of Hess' Guyana assets.

(Reporting by Seher Dareen in Bengaluru and Gary McWilliams in Houston; Editing by Shilpi Majumdar)