Sources: Malaysia's Petronas Buys First Ever US Oil Cargo, Due In Sept

SINGAPORE/KUALA LUMPUR, July 3 (Reuters) - Malaysia's state energy company Petronas has bought its first ever U.S. oil cargo of 1 million barrels of Mars crude, expected to arrive at its Malacca refinery in September, two sources with knowledge of the matter said on Tuesday.

One of the two crude distillation units at the Malacca refinery will process the U.S. sour crude that will replace oil from the Middle East, one of the sources said.

Petronas could not be immediately reached for comment.

(Reporting by Florence Tan and Jessica Jaganathan in SINGAPORE and Emily Chow in KUALA LUMPUR Editing by Manolo Serapio Jr.)