Our Instructors

Agapitus Rustriwidodo (Gapit)

Foster Oil & Energy Pte Ltd.

Agapitus has been 26 years working and maturing in Oil & Gas and Geothermal industry especially in Drilling Completion, Subsurface Engineering, Procurement, Environmental Remediation, Government of Indonesia liaison and Environmental Permitting.  His leadership roles span project management, operations, and safety across deep water, land, and geothermal drilling with Chevron in Indonesia. Following the Rokan block transition in 2021, he joined PT Pertamina Hulu Energy (PHR) as Manager of OE/HES Permitting & Advocacy until December 2022.

Agung Laksono

PT CNLC Asia Pasific

A marketing and business development professional with over 8 years of experience n marketing management, leading brand development, market strategy, and client engagement within the energy sector.

Ariatama Yustisia

Baker Hughes

An experienced Technical Sales and Engineer in the oil and energy industry, Ariatama has a proven track record of over 15 years, specializing in drill bits and petroleum geology. With expertise gained from roles at leading companies like Baker Hughes and Halliburton. Holds a Bachelor's degree in Geology/Earth Science from Institut Teknologi Bandung (ITB).

Ashadi, S.T., M.T. 

KS Orka Renewables  

 A drilling professional with a passion in developing geothermal resources. Strongly believe that enhancing drilling performance, improving well quality, and reducing costs can greatly contribute to the success of geothermal projects and development.


Dr. Sena Warman Reksalegora

Independent Consultant, Visiting Lecturer at Fakultas Teknik Geologi - Universitas Padjadjaran

Seasoned Petroleum Geologist with  35+ years productive industry experience in major oil and gas companies both in country and overseas (ARCO, UNOCAL, CHEVRON, APEC, HUSKY).


Fahmi Sungkar

Vallourec Asia Pacific Corp

Results oriented Technical Sales Manager at Vallourec Asia Pacific Corp (PT. Cita Tubindo Tbk) with over 10 years of experience in the OCTG Industry. Based in Singapore and specializing in the Asia Pacific Market for Oil and Gas and New Energy Businesses (Geothermal and CCUS). Work closely with the Drilling Engineering and Completion Team to identify optimal OCTG materials and connections tailored to the customer's Well design and Well Conditions. Align technical solutions with customer project objectives and ensure efficient and successful operations throughout the project.

Fernando Marpaung S.T, M.T

Halliburton

With 20 years of experience, Fernando holds a Geology Engineering degree from ITB and a Master’s in Petroleum Engineering from Universitas Trisakti. He started as a Field Geologist and Mudlogger before working at SLB as a Directional Driller and Drilling Engineer. He later became a Senior Technical Advisor at Halliburton for the Asia Pacific region. 


Lalu Hendra Permana S.​

PT Parama Data Unit

A seasoned professional in the oil and energy industry, Lalu has over 15 years of experience in drilling operations and geological analysis. He has served as a Mudlogging Field Engineer, Technical Advisor, and is currently the Operation Manager at PT. Parama Data Unit. He also lectures on Mudlogging and Drilling Instrumentation at Jakarta Drilling Society and Sekolah Vokasi UGM

M. Burhanuddin Aulia Asy'ari

PT PLN (Persero)

Works in the New Renewable Energy Division and Geothermal Division for 8 years. Experienced in Pre-Feasibility Studies, Feasibility Studies, Drilling, Well Testing, Well Intervention, Project Management, Procurement, and Geothermal Power Purchase Agreements (PPA).

Redha Bhawika Putra

Arka Data

A geothermal drilling profesional with 12 years experiences in various leading international and national energy company. He actively manages and lectures at Jakarta Drilling Society and running education events through Indonesian UK Alumni Association (IABA). Hold B.Sc. from Institut Teknologi Bandung (ITB) and M.Sc. from University of Manchester.

Riza Pasikki

Riza Pasikki

Sarulla Operations Ltd 

Riza Pasikki is the Chief Operating Officer at Sarulla Operations Ltd since May 2023. With 25+ years in the geothermal and energy sectors, he specializes in reservoir management and had experience in major oil and gas companies (BP, CHEVRON, STAR ENERGY, KS ORKA). Riza holds a Master’s in Chemical Engineering from The University of Tulsa and a Bachelor's in Gas and Petrochemical Engineering from the Universitas Indonesia.

Sari Nurlita Bahri

Halliburton

 An experienced Health Safety and Environmental Coordinator in the Geothermal industry, Sari has a record for 10 years specializing in QHSE with expertise gained 

from manufacturer and services company in O&G and geothermal industries. Currently expanded the career with Halliburton for more exposure.

Subur Arianto

Supreme Energy

A drilling expert with 20+ years in geothermal and oil & gas, specializing in operations, well services, and project management. Subur has worked with Chevron, Supreme Energy, and Ormat, and teaches geothermal drilling and well control as a certified IADC/IWCF instructor. Holds a Cum Laude Chemical Engineering degree from Institut Teknologi Bandung (ITB).

Tommy Souvanir

Tommy Souvanir

Ormat Geothermal Indonesia

Tommy Souvanir is a Senior Drilling Engineer at Ormat Geothermal Indonesia. With over 15 years of industry experience, he leads the global drilling team, directing the Toka Tindung and Wapsalit explorations. Previously, he contributed to Star Energy Geothermal's Salak and Darajat campaigns and led the Wayang Windu Workover Program. At Chevron Indonesia, he served as Well Site and Drill Site Manager on projects like Suoh Sekincau and Sebatik.  

Yudi Hartono

KrisEnergy (Sakti) B.V.

With 34 years of experience in oil, gas, and geothermal drilling, Yudi Hartono has worked in various environments, including onshore, swamp areas, offshore shallow water, and deep water. He has held positions ranging from Drilling Engineer to Drilling Superintendent and Drilling Manager.