Energy Consultants

Principal Associates

DOUG GILLIES BSc. PhDDoug Website_opt

Doug has broad international experience covering  operated and non-operated exploration and production projects, new ventures evaluations and commercial negotiations in the UKCS, Middle East, Gulf of Mexico and onshore USA, Central and Eastern Europe, Former Soviet Union and Asia-Pacific regions. He is a geologist with a PhD from Edinburgh University in Scotland and a BSc from the University of Newcastle-upon-Tyne, England

Since 2010 he has provided technical and commercial advisory to the energy industry. He is a  qualified reserves and resources evaluator (SPE) and a registered geologist with the Malaysian Board of Geologists

New Ventures Manager; Cooper Energy
Subsurface Manager;  Murphy  Malaysia
Country Manager; Worley Select, Malaysia
Team Leader & Senior Geologist;  Enterprise Oil, London, Houston & Aberdeen
Senior Geologist; British Gas International
Exploration & Development Geologist; QGPC (Qatar)


GARETH HENDERSON BSc. MSc.Gareth website_opt


Gareth has wide-ranging petrophysical experience from operated ventures in the UKCS, Central Europe, Middle East, Asia-Pacific regions, Central Asia and onshore USA. He holds a MSc. in Petroleum Geology from Imperial College and a BSc in Geophysics from Liverpool University.
Since 2001 Gareth has worked with Operators as a senior consultant on conventional and unconventional resources. He is a member of the SPWLA and a registered geologist with the Malaysian Board of Geologists


Senior Staff Petrophysicist for Murphy Oil (Malaysia)
Lead Petrophysicist for Maersk Oil (Kazakhstan)
Senior Consulting Petrophysicist for Xstrata Coal (Australia)
Senior Consulting Petrophysicist for Santos (Australia)
Petrophysics Team Lead Carigali Hess (Malaysia)
Senior Consulting Petrophysicist for PDO (Oman)
Senior Petrophysicist Enterprise Oil (London, Aberdeen & Dublin)
Petrophysical Advisor to Board Rocksource (Norway & USA)
Senior Petrophysicist Woodside Energy (Australia)


JOCHEN KASSAN MSc. PhD.Jochen website

Reservoir Modelling

Jochen is a technical expert with 31 years global experience of detailed facies and sequence analysis, 3D reservoir modelling, reservoir characterization, clastic sedimentology and sequence stratigraphy in fluvial, lacustrine, deltaic, shallow- and deep marine and coal-bearing successions. His experience includes projects in Australia, New Zealand, Sudan, Libya, Malaysia, Thailand and India among others.  He also has experience in planning and executing lab methods for reservoir characterization including SEM, XRD and core flooding programs.
Jochen is an accomplished teacher and trainer of sedimentology, sequence stratigraphy and reservoir modelling courses and has published numerous academic papers.
Jochen is an expert user of Petrel, building fit-for-purpose models in close collaboration with other subsurface disciplines.  

Industrial Fellow at the Centre for Coal Seam Gas/School of Earth Sciences, University of Queensland.
Geological Advisor and 3D Geomodeller at Murphy Sarawak Oil (Kuala Lumpur)
Reservoir modelling Consultant, Petronas-Carigali (Kuala Lumpur)
Independent International Consultant (Whistler Research Pty Ltd) for oil and gas fields and geological sequestration of CO2
Petroleum Geologist with FERN Consultants Pty Ltd (Brisbane, Australia and Port Moresby, Papua New Guinea)


CONRAD TODD  BSc. MScConrad_website_opt

Conrad brings extensive international experience in geology and geophysics.  He has evaluated a wide range of oil and gas opportunities in key hydrocarbon basins worldwide and has established and managed exploration programmes in several countries. Conrad has worked for Cooper Energy, Total/ELF, Occidental, Triton, Lasmo and Lundin. He holds a MSc in Stratigraphy and a BSc in Geology. Over 6 years at Cooper Energy, the company expanded from a market capitalisation of $20MM to $120MM.

Conrad  is a recognised expert in resource  evaluations, technical  studies  and  corporate advisory.  He is a member of AAPG, PESA, and SEAPEX

Exploration Manager for Cooper Energy
New Ventures Manager Lasmo Indonesia
Exploration Development Manager Lundin Malaysia
Geoscientist for RISC,Total/ELF, Occidental, Triton

RAE JEFFERIES B.Sc. Rae jefferies1

  Reservoir Engineering

Rae is a Reservoir Engineer with 35 years’ international oil & gas industry experience. She specialises in field development planning, reservoir simulation, reservoir management and optimisation.  Since 1991 she has conducted consultancy roles with field assessments ranging from small onshore oil and gas fields to major offshore integrated and deep water developments in the UK, USA, Australasia and Africa.  She has advised on field development feasibility and optimisation for Japan Australia LNG (MIMI), Vermilion, Shell, Woodside, Chevron, Mobil, Apache and local Perth Junior explorers

Reservoir Engineer with
Conoco UK Limited - London

Planning and Evaluation Engineer with Lasmo PLC - London

Reservoir Engineer with Mobil North Sea Limited - London