Denie Samuel Tampubolon

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.

PT Pertamina Hulu Energi manages 57 operational and operational portfolios of 59 subsidiaries, 8 joint ventures, and 2 affiliated companies which manage oil and gas blocks in Indonesia and abroad, and engages in downstream oil and gas business and services. The company was founded on January 1, 2008 and is headquartered in Jakarta, Indonesia.

PT Pertamina Internasional Eksplorasi dan Produksi is an Indonesian company that engages in the production and exploration of oil and gas. The private company is based in Jakarta, Indonesia. The company is ultimately controlled by the Government of Indonesia. John Anis has been the CEO of the company since 2020.

PT Pertamina EP Cepu is an Indonesian company founded in 2005. The private company is based in Jakarta, Indonesia. PT Pertamina EP Cepu is a subsidiary of Pertamina, which is ultimately controlled by the Government of Indonesia.

PT Pertamina Hulu Mahakam provides oil and gas exploration and production services. The private company is based in Kota Balikpapan, Indonesia. The Indonesian company is ultimately controlled by the Government of Indonesia.