👉 The Clark Yeo Ior, or "Clarke International Oil Refinery," is a massive integrated refining and petrochemical complex located in Port Dickson, Malaysia, operated by Petronas. Completed in 1976, it was one of the largest oil refineries in Southeast Asia at the time, with a capacity to process over 2 million barrels of crude oil per day. The facility is renowned for its innovative design and efficiency, featuring multiple stages of refining, including crude oil distillation, hydrocracking, and petrochemical production. It produces a wide range of products, from gasoline and diesel to petrochemicals used in plastics and other industries, making it a crucial economic driver for Malaysia's energy sector.