• SaptoRaharjoAffan

Sapto is a Production Operation Specialist with more than 30 years of experience in Oil & Gas industries. He worked with Huffco (subsequently named VICO Indonesia) and held progressively higher positions. He wasa Deputy VP Operation prior joining PSG. Sapto has numerous experiences in conducting debottlenecking projects and reduce losses in Surface Facilities. He is also experience in coordinating gas transportation arrangement. He currently serves as CEO of PSG.

  • FirwanAprizal

Firwan is a Chief Reservoir Engineer with 20 years of experience in various multi national oil companies(VICO, PREMIER OIL, CITIC, BUKIT ENERGY) prior joining PSG. He has numerous experiences in Reservoir Engineering Studies, Field Development Plan, Dynamic Reservoir Simulation (clastic and carbonate),Wellwork Operation, Commercial and Due Diligence for M&A. He also has extensive experience in Reserves Auditing and Reporting and gaining some successful results in maximizing production and recoverable reserves in brown fields. He currently serves as COO of PSG.


  • Muhammad Farhan

Farhan brings over 20 years of oil and gas industry experience to the company and has experience with project and asset management with major companies. He worked for numerous multinational oil and gas companies operating in Indonesia, Middle East and Brunei (Shell, PDO, KUFPEC, Schlumberger, BP, Santa Fe Energy).He has extensive experience with portfolio management, business planning, new ventures and resources volume estimation. Other technical experience includes well, reservoir and facility management, field studies, and waterflood project. He currently serves as President Commissioner of PSG.


  • HariKaryadiOetomo

Hari has more than 29 years of experience in Oil and Gas Industry with various positions as Sub-Surface Engineer and Management. He was the General Manager of PetroChina at West Papua prior joining PSG. Presently, he is also working on his full time lecturer at UniversitasTrisakti, where he was a part time lecturer for the last 7 years. He has his Bachelor and Master degrees from The University of Tulsa.


  • SulistiantoSunaryo

Sulistianto is a Project Economic andManagement Expert at PSG with more than 26 years of experiencesin upstream & downstream oil and gas, energy &power plant andpetrochemical industries. He started his career with the largestIndonesian EPCCompany, RekayasaIndustri, as Marketing Vice President. He movedoverseas inearly 2005 to join Qatar Petroleum, Lundin/Sinopec Syria, INPEXCorporation andPETRONAS Malaysia. His specialties are to provide the services in thearea of businesseconomic modeling, feasibility study & economic analysis,and integratedproject management (from opportunity framing to facilitiescommissioningphase). He manages some major milestones such as conceptselect, projectexecution plan, overall contracting strategy & tender plan,project risk assessment(PRA), project assurance & review, fielddevelopment plan (FDP), final investmentdecision (FID), FEED and EPCexecution. He is also expert in the area of CAPEX/OPEXcost estimating &budgeting including cost risk assessment (CRA), project planning&scheduling including schedule risk assessment (SRA) and project control byusingearned value management (EVM). He graduated from ITB – ElectricalEngineering (1984-1989) and PPM Graduate School of Management – FinancialManagement (1991-1992)


  • Abdul Hamid

Abdul Hamid is Drilling & Completion expert with 33 years of experience in Oil & Gas industries.Prior to joining PSG, he held progressively higher positions with Petrochina, CiticSeram Energy Ltd and Singapore Petroleum Company. He has wide experience on planning and execution of Drilling &Workoverincluding High Pressure and Deep wells.


  • AndangKustamsi, PhD

AndangKustamsi is a Geomechanic Expert with a strong blend of theoretical and practical experience. He held master and PhD from New Mexico Institute of Mining and Technology and Post Doctoral fellow in University of Calgary, Canada. Prior joining PSG, he worked for Baker Hughes in Kuala Lumpur and Jakarta as Senior Geomechanic Specialist conduction pore pressure prediction, geomechanical modeling, wellbore stability analysis and fault stability analysis. He conducted projects in oil & gas reservoirs as well as in coalbed methane and geothermal reservoirs.


  • HeruDewanto

Heru is highly skilled petroleum professional with 25 years of experience in various petroleum engineering areas, mostly in production engineering and operations. He has experience with both oil & gas fields in offshore and onshore environment. His expertise covers well and field production optimizations, production monitoring, well intervention, stimulation, artificial lift design, workover, completion, project management, and work plan & budgeting.


  • EdhiWarsito

Edhi is a Senior Petrophysicist with more than 19 years of experience in single well/multi well petrophysical analysis in Indonesia and Middle East. Prior joining PSG he was the Petrophysic Team Leader for Schlumberger Data Services-SIS. He has working experience as Petrophysicist/Log Analyst (Open Hole and Cased Hole) and trainerfor loggingacquisition and interpretation (wireline and LWD/MWD).


  • JunrialChaerulHuzaen

Junrial is a Geologist with Master degree in Applied Geophysics with more than 15 years of experienced. He possesses multiple skills covering many fields including seismic interpretation, petrophysics analysis, and geological modeling (using geostatistic method to generate deterministic and stochastic 3D reservoir model, from structural, facies, petrophysic, and volumetric with uncertainty analysis). He hasundertaken studies and generate static modelingfor reservoirs in deltaic Central Sumatra Basin; Alluvial-fluvial-deltaic South Sumatra Basin; Fluvial-Tidal deltaic of Malay Basin (Thailand-Malaysia), deltaic–coastal environment of Sarawak Basin (Malaysia).


  • JatmikoArimurti

Jatmiko is a Geoscientist with strong emphasis on both Exploration & Development. He had 18 years of experience with some multi national oil companies (CHEVRON, VICO, HESS, PETRONAS CARIGALI). He has experience in both carbonate and sandstone reservoirs. He has numerous experiences in 3D and 4D seismic interpretation, seismic inversion/attribute as well as Project Manager in 3D land seismic data acquisition and processing. He has been conducting seismic interpretation and Prospect generation in many areas such as Central Sumatra, East Kalimantan, Halmahera (carbonate), Ujung Pangkah and West Papua.


  • WidiHernowo

Widi is a dedicated and results-driven safety professional with 15+ years of experience and a strong background in the Safety & Risk Management in Oil & Gas industry. He has worked with multinational companies (WorleyParsons, Hess, BP and PETRONAS) with the primary focus in ensuring safety in design both in FEED and DED phase, well drilling and operation safety & integrity and meeting the defined safety objectives on various stages of Oil & Gas industry life cycle. He has fully conversant with Indonesian and International standards related to HSE and Process Safety. He is certified in NEBOSH ITC Oil & Gas, TapRoot Team Leader, IWCF Drilling Supervisory and HAZOP Team Leader.


  • ChaerulUmam

Chaerul has more than 11 years of experience in Oil & Gas industries with experience as Directional Drilling Engineer, Senior Drilling Engineer and Drilling Supervisor for drilling and completion in onshore/offshore rigs with operational of conventional directional wells (using mud motor, RSS, M/LWD, whipstock), CwD (level 2&3), conventional liner and expandable liner, single and dual stage cementing, using WBM and SOBM, running single and dual tubing operations with packer and cement job, and SIMOPS. He also has experience with HPHT and deep wells drilling operations. Prior to joining PSG he has worked for various companies like PetroChina International, BOB BumiSiakPusako, Pertamina, EMP, CNOOC, PHE WMO, VICO Indonesia and Weatherford – Precision Energy Services.