Management
Radikal Utama - Senior Vice President, Support & Services
Radikal has 32 years of industry experience in reservoir and production engineering, operations, human resources, and general affairs. His has worked for about 28 years at Caltex/Chevron’s Central Sumatera producing assets (largest oil producer in Indonesia) including overseas assignments in Texaco, Houston and in Amoseas, Dallas. He has then held positions of VP General Affairs in Rumbai, VP Operations of Bekasap and Minas before his retirement in 2003. Soon after that, he was the GM of Lirik Petroleum and TAC Equatorial Sembakung. He moved to Energy Mega Persada as the Executive VP before joining Star Energy in 2006 as the Sr. VP Engineering and Operations. He joined PT. Supreme Energy in late 2007. Radikal has a bachelor degree in Petroleum Engineering from ITB.

Andrew Whittome - Vice President , Project Development
Since the 1970s, Andrew has worked in the Philippines, New Zealand, Indonesia, and Africa on a variety of geothermal projects in civil, drilling, production and reservoir engineering roles. In the early 1980s he joined Chevron working in California and Nevada. In 1985 he was involved in leading the development of the Darajat project in West Java up until its plant operation where he was the Production Manager until 2001. He joined Calpine Corporation as Project Development Director where he developed several power projects in Washington, Colorado and California including the Geysers. He joined PT. Supreme Energy in 2008 as VP Project Development. Andrew has bachelor degrees in Science and Engineering from the University of Auckland and a Diploma in Management from Deakin University, Melbourne.

Prijandaru Effendi - Vice President, Relations & SHE
Prijandaru started his career in 1993 as a Petroleum Engineer with Asamera Oil. He was with Gulf Resources Ltd as International Business Development Manager in 1997 and Gas Marketing Manager in 2002. Upon its acquisition by ConocoPhillips Indonesia, he was responsible for domestic and international gas sales as Gas Marketing Manager. He joined Magma Nusantara (Star Energy) in 2005 as Sr. Manager Commercial & Operation Support where he led negotiations with PLN for the electricity sales of the Wayang Windu expansion. He joined PT. Supreme Energy in 2007. Prijandaru has a bachelor degree in Engineering from Trisakti University and a master degree in Petroleum Engineering from Tulsa University, Oklahoma.

Julfi Hadi - Vice President, Exploration & Subsurface Engineering
Julfi started his career in 1991 as Exploration Geologist with Amoseas Indonesia Inc. working in many exploration blocks. In 1994, he was transferred to the geothermal department to head Chevron Texaco’s geothermal field prioritization project reviewing major geothermal fields in Sumatera, Java and Nusa Tenggara (Bali). He was also assigned to Chevron’s HQ at San Ramon in 1998 to construct the Darajat resource static model. He joined Magma Nusantara Ltd as Subsurface Engineering Manager in 2004 and as Sr. Manager in 2006. After successful Wayang Windu Unit-2 drilling campaign, he joined PT. Supreme Energy in early 2008. Julfi has bachelor and master degrees in Geology from the University of Texas and holds a diploma in Geothermal Technology, University of Auckland.

Nisriyanto - Vice President, Finance & Planning
Nisriyanto has more than 20 years of experience in finance and accounting, planning and auditing in various industries, including oil & gas and geothermal businesses. He held various managerial positions in the industries, including ConocoPhillips Indonesia and Star Energy. He joined PT. Supreme Energy in 2007. Nisriyanto has a master degree in Accounting from University of Denver, CO - USA, and is a registered Accountant in Indonesia.