Oman Oil Company Exploration and Production is planning to build two refineries in Indonesia in collaboration with Jakarta-based Pertamina. The former is willing to invest in oil refineries in Bontang, East Kalimantan, and Kuala Tanjung, North Sumatra. Pertamina as the partner is conducting relevant studies to finalise the plan. The investment details are currently being discussed by the two companies. If the refineries have a capacity of 300,000 barrels per day (bpd), the projected investment is between $10 billion and $12 billion.