The agency has until now been handling three categories of Petronas business, including domestic corporate, motor sports and lubricants.
Leo Burnett has won several prestigious awards including a Cannes Lions for its advertising campaigns for Petronas, all of which were developed by ECD Yasmin Ahmad, who passed away last weekend.
In April, Petronas handed its international corporate account to BBDO.
The company has recently launched a heavy-duty lubricant for diesel engines called Petronas Urania. In Asia the focus for marketing this product will be China, India and Southeast Asia.