HOUSTON (Reuters) - Marathon Oil shareholders on Thursday approved the U.S. oil producer's nearly $16 billion acquisition by ConocoPhillips, the company said.

Marathon Oil and ConocoPhillips expect the purchase, which is undergoing a Federal Trade Commission review, to close late in the fourth quarter of 2024. Details of the vote were not immediately available.

(Reporting by Arathy Somasekhar in Houston)