Who We Are

Management

R. Gunung Sardjono Hadi

President Commissioner

R. Gunung Sardjono Hadi

Indonesian and based in Jakarta, currently serving as PGN Saka ‘ s President Commissioner since 2021. Holds a Bachelor’s Degree in Chemical Engineering from Diponegoro University (1987) and a Master’s Degree in Mechanical Engineering from the University of Indonesia, Jakarta, and Queensland University of Technology, Brisbane (2000). Possesses over 30 years of experience within the Pertamina Group, with key roles including Vice President Planning and Portfolio of PT Pertamina EP (2007- 2008), Senior Vice President (SVP) Business Development Upstream PT Pertamina (Persero) (2008-2009), and President Director of PT Pertamina Hulu Energi (2015-2018)

Muhammad Sulhan Fauzi

Commissioner

Muhammad Sulhan Fauzi

Indonesian and based in Jakarta, served as PGN Saka ‘ s Commissioner starting 2022. Holds a Bachelor’s Degree in Economics from Universitas Islam Indonesia, Yogyakarta (1994), and a Master’s Degree in Strategic Management from the University of Brawijaya, Malang (2004). He commenced his career as an Account Officer at Bank Umum Nasional (1995- 1996), and subsequently held the position of President Director at PT Purba Griya Utama (2016-2021). Prior to joining PGN Saka, he served as an Independent Commissioner at PT Pegadaian (Persero) from 2021 to 2022 

President Director

Medy Kurniawan

An Indonesian national, he has been serving as the President Director of PGN Saka since September 4th, 2023. He earned his Bachelor’s Degree in Geological Engineering from Institut Teknologi Bandung in 1987, and later obtained his Master’s Degree in the same field from the same institution in 2001. With over 30 years of experience at Pertamina, his extensive career has been marked by significant contributions to the company. Medy Kurniawan has occupied various roles within the stateowned organization, such as he served as Director of Exploration of Subholding Upstream (SHU) (2020-2023), Senior Vice President of Upstream Exploration, Vice President of Business Initiatives & Valuation for Upstream Business Development, and Vice President of Operations/Country Manager

Director of Exploration and Development

Fuji Koesumadewi

An Indonesian national, she has been serving as the Director of Exploration and Development at PGN Saka since September 4th, 2023. She earned his Bachelor’s Degree in Geophysical Engineering from Institut Teknologi Bandung in 2000, and his Master’s Degree in Geological Engineering from the same institution in 2011. She has over 16 years of experience working with Pertamina, Fuji Koesumadewi has also served in numerous significant roles, including Exploration Manager, where she oversaw the exploration activities and strategies and Vice President of Exploration PT Pertamina Internasional EP Regional 5 where she was responsible for high-level decisionmaking and management within the organization. 

Director of Operations

Achmad Agus Miftakhurrohman

An Indonesian national, he has been serving as the Director of Operations at PGN Saka since September 4th, 2023. He earned his Bachelor ‘ s Degree in Petroleum Engineering from UPN Veteran Yogyakarta in 1991. With over 24 years of experience in the upstream oil and gas sector, he brings extensive expertise and knowledge to his current role. Additionally, Achmad Agus has held important positions such as Process Operation Manager, where he focused on optimizing production processes to enhance efficiency, and Field Operation Manager, where he was responsible for overseeing and managing day-to-day operations to ensure smooth and effective field activities

Jimmy Lambey

Director of Finance and Business Support

Jimmy Lambey

Indonesian and based in Jakarta, currently holds the position of Director of Finance and Business Support at PGN Saka since 2022. He earned his Bachelor’s Degree in Economics from Universitas Sam Ratulangi in 1999. Prior to his current role, he worked as an Information System Auditor at PT Audittindo Arin Prima (2002-2003). Transitioning to the oil and gas industry in 2003, he participated in the Financial Undergraduate Professional Guidance Program (BPS) at Marketing Unit VIII Jayapura, Papua, and subsequently advanced his career at Pertamina, culminating in his role as Financial Reporting Manager from 2021 to 2022. 

Commissioner

Mustafid Gunawan

Indonesian, 57 years old, domiciled in Jakarta. He serves as the Commissioner of SAKA since November 16, 2019. He received his Bachelor’s Degree in Geological Engineering from Pembangunan Nasional Veteran University, Yogyakarta, in 1991 and finished his Master’s Degree in Planning and Development Policy from University of Indonesia, Jakarta, in 2007.

Commissioner

Susilo Siswoutomo

Indonesian, 72 years old, domiciled in Jakarta. He serves as the Commissioner of SAKA since May 17, 2019. Previously, he served as the President Commissioner of SAKA (2014- 2019). He finished his study in Mechanical Engineering-Solar Refrigeration from Bandung Technological Institute in 1970.