Khostarosa Andhika Jaya

PT Pertamina (Persero) engages in the exploration and production of oil and gas, in both upstream and downstream sectors. It operates through the following segments: Upstream, Refinery and Petrochemical, Commercial and Trading, Gas, Power and New & Renewable Energy, Integrated Marine Logistics, Financial and Services, and Holding. The company was founded on December 10, 1957 and is headquartered in Jakarta, Indonesia.

Saka Indonesia Pangkah Ltd. is an oil and gas exploration and British production company. The company is based in London, UK. It engages in the exploration and production of oil, natural gas, and natural gas liquids. The company is ultimately controlled by the Government of Indonesia. The company was founded in 1995.