Meet our Experts

Meet our Experts

Principal GCA Personnel: Americas Region

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Daniel Amitrano

Daniel Amitrano

- Principal Advisor: Reservoir Engineering - daniel.amitrano@gaffney-cline.com

Daniel is a senior reservoir and petroleum engineer with over 25 years of experience in the international oil and gas industry.  He has an excellent technical background and his geographical areas of experience include Venezuela, Bolivia, Mexico, Peru, Ecuador, Gulf of Mexico, Colombia, Brazil and Argentina (North, West and South basins).

William B Cline

William B Cline

- Strategic Advisor - bill.cline@gaffney-cline.com

Bill is a Strategic Advisor within GCA.  He has over 30 years' experience in the international oil and gas industry and has managed a large number of GCA's engagements with national oil companies, governments and ministries in the Americas, Europe, Africa, Asia and the Middle East.  He focusses his efforts on combining the technical and commercial capabilities of GCA into integrated decision-making support and advice for the company's clientele, particularly with respect to property valuations (for transactional or dispute resolution purposes) and development of commercial and fiscal arrangements for linking private sector capital and technology with sovereign or public sector petroleum resources. 

Alan Cunningham

Alan Cunningham

- Technical Director: Commercial - alan.cunningham@gaffney-cline.com

Alan is a Technical Director in GCA’s Houston office. He has over 40 years’ experience in the international oil and gas arena and has led organizations with as many as 2,000 employees. He has held senior technical and executive roles with Union Texas in Houston, Singapore and Jakarta and more recently as an energy policy specialist with The World Bank. Alan currently advises on fiscal policy, field development planning, reservoir performance and license round management. 

Nick Fulford

Nick Fulford

- Global Head of Gas and LNG - nick.fulford@gaffney-cline.com

Nick is Global Head of Gas and LNG for GCA, with 30 years of experience at British Gas, Centrica and Direct Energy, where he has held various senior executive and planning positions.  Nick was actively involved in British Gas’ early LNG growth prior to becoming assistant to Chief Executive Sir Roy Gardner where he played a major part in Centrica’s demerger. Nick subsequently led the company’s move into North America where he developed the strategy and executed the acquisition of Direct Energy. For the last three years, Nick’s focus has been on unconventional resource opportunities in the US and Canada.

Bob George

Bob George

- Vice President - bob.george@gaffney-cline.com

Bob is an Executive Director and Senior Strategic Advisor with over 40 years’ experience in the international oil and gas industry. He actively participates in and manages GCA’s advisory activities relating to financial, strategic assistance, government policy as well as expert opinion and testimony.

Cesar Guzzetti

Cesar Guzzetti

- Principal Advisor: Latin America General Manager - cesar.guzzetti@gaffney-cline.com

César manages GCA's activities in the Southern Cone of South America, notably Brazil, Argentina, Bolivia and Peru and is based in GCA's Buenos Aires office. He has over 30 years of project evaluation experience in negotiations, engineering and operations and considerable expertise in Project Management, Field Evaluation and Development, Reservoir Management and Project Valuation. César has lived and/or worked in the former Soviet Union, Kazakhstan, Turkmenistan, India, Pakistan, China, Venezuela, Colombia, Mexico, Guatemala, Cuba, Ecuador, Peru, Bolivia, Brazil, Trinidad Tobago, Canada and the US, working on exploration projects or expanding the developing of producing fields.

Carlos Jorda

Carlos Jorda

- Technical Director: Midstream & Downstream - carlos.jorda@gaffney-cline.com

Carlos is a Technical Director in GCA’s downstream strategy group,  with almost 40 years of experience in the international oil and gas industry. He has served at the highest executive levels in refining and marketing, corporate planning, and as president of PDV America and chairman of the Citgo board of directors. Carlos leads GCA's midstream/downstream activities in North and Latin America. 

Scott Monette

Scott Monette

- Senior Business Development Manager: Mexico and Commercial - scott.monette@gaffney-cline.com

Scott is a senior Business Development Manager in GCA's Houston office, with over 23 years of industry experience with major oil and gas services companies, independent oil companies, and boutique consulting firms. He has a strong background in financial modeling, statistics, international economics, strategic planning, and oil and gas operations. Scott’s diverse background in multiple disciplines from the technical and commercial through the strategic sectors of the industry has enabled him to build a wide professional network and vast international experience on multiple continents.

Rawdon Seager

Rawdon Seager

- Technical Director: Global Quality Assurance - rawdon.seager@gaffney-cline.com

Rawdon is a Technical Director responsible for Global Quality Assurance within GCA and has over 40 years of experience in the international oil and gas arena. He has managed numerous field studies, reserve assessments, and asset evaluations. He has made presentations within the industry relating to reserves estimating and reporting issues and has given expert testimony during arbitration hearings. He is Past-Chairman of the SPE Oil and Gas Reserves Committee.          

Principal GCA Personnel: Europe, Africa, Middle-East, Russia and Caspian

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Dr. John Barker

Dr. John Barker

- Technical Director: Reservoir Engineering - john.barker@gaffney-cline.com

John is a senior reservoir engineer and Technical Director, with 30 years’ experience in major oil companies and in consulting.  Worked on conventional oil, gas and gas condensate fields of all types in many different parts of the world, including naturally fractured reservoirs and enhanced oil recovery projects, and also on some tight gas and heavy oil fields.  An acknowledged expert in all aspects of reservoir simulation and its use in reservoir development planning and also has extensive experience in reserve/resource estimations for fields of all sizes.

Jeremy Berry

Jeremy Berry

- Global Business Development Director - jeremy.berry@gaffney-cline.com

Jeremy is a business manager with a geoscience background and 33 years’ petroleum industry experience in technical, sales, marketing and managerial positions.  He has a primary technical strength in the geosciences, and a broad understanding of complementary disciplines and business integration along with a high-level awareness and practical experience of reserves/resources, asset valuation, M&A activities and leading edge technologies.  He has an in-depth understanding of sub-Saharan Africa and has presented widely on the subsurface and business opportunities in the region.  

Mike Cline

Mike Cline

- Executive Director & Principal Advisor: Business Strategy and Legal Counsel - michael.cline@gaffney-cline.com

Mike is an Executive Director in GCA’s Corporate Strategy Group with over 30 years of experience, including senior advisory engagements for national oil companies and sovereign institutions to develop the commercial and legal frameworks for foreign private investment and integrated project development in their oil and gas sectors.  

John Gaffney

John Gaffney

- Regional Director - john.gaffney@gaffney-cline.com

John is the Regional Director for GCA in Europe, Middle East, Africa, Russia and the Caspian.  He has a diverse management background including over 15 years' international experience in Europe, South-East Asia, the Middle East and South America and is a member of SPE and SEAPEX

Charles Goedhals

Charles Goedhals

- Principal Consultant: Development Planning - charles.goedhals@gaffney-cline.com

Charles, a Principal Consultant at GCA, has over 35 years industry experience in oil and gas project management and associated technical and commercial functions.  Within GCA Charles provides advice on field development definition, project execution planning, facilities engineering, cost estimating, and project management and surveillance.

Ryan Pereira

Ryan Pereira

- Principal Commercial Manager, Global Gas and LNG - ryan.pereira@gaffney-cline.com

Ryan has a commercially focused global role advising on monetisation of oil and gas.  Ryan brings over 13 years of experience in the energy sector, from industry and advisory roles with majors (ExxonMobil) and operators (Centrica Energy) as well as working with joint venture parties and national oil and gas companies.

Ryan has extensive international experience and cultural awareness having completed assignments across Europe, Middle East, Africa, Asia Pacific, North America and the Caribbean across the downstream, chemicals, midstream and LNG, and upstream sectors.

Key areas of expertise include commercial and finance leadership, LNG market development and contracts, M&A, economics, valuations, project delivery, business / strategy consulting, new country entry and set up, organisational design and integration.

Richard Poole

Richard Poole

- Technical Director: Midstream & Downstream - richard.poole@gaffney-cline.com

Richard is a Technical Director within GCA's midstream/ downstream and commercialization team.  Following a number of years in the refining and chemical industry with Amoco and Exxon, he has provided global advice for more than 20 years. Richard's expertise encompasses both the oil and gas value chains and includes strategic management advice, market studies and pre-feasibility studies. He has written articles on the global gas/GTL industry and authored a number of gas/power/refined product and GTL-related papers presented at international conferences.

Drew Powell

Drew Powell

- Global Operations Director - drew.powell@gaffney-cline.com

Drew currently Global Operations Director for GCA based in the United Kingdom. He is responsible for ensuring the delivery of high-quality pertinent advice to GCA's clients. Drew is a chemical engineer with over 20 years’ petroleum industry experience and with a particular expertise in oil and gas field development, cost estimating and technical due diligence

Chris Rachwal

Chris Rachwal

- Technical Director: M&A and Strategy - chris.rachwal@gaffney-cline.com

A Technical Director at GCA with a multi-disciplined background and 37 years' experience of managing and contributing to major field studies, exploration programmes, asset valuations, reserves reports and strategic growth planning, both as a consultant and with a major oil company.  A key member of GCA’s M&A business practice, leading large multi-disciplined project teams assisting clients in asset/company purchases, asset sales, license rounds, in conjunction with leading legal and financial organisations.  He provides both strategic, business process plus technical assistance to oil companies and governments worldwide.

Jonathan Westbury

Jonathan Westbury

- Senior Commercial Business Advisor - jonathan.westbury@gaffney-cline.com

Jonathan Westbury is a Senior Commercial Business Advisor with Gaffney, Cline and Associates.  He has over 37 years of experience in the petroleum industry holding senior technical and advisory roles with majors and operators, as well as working with joint venture parties and national oil and gas companies.  He spent 26 years with Shell, 8 years with Phillips Petroleum and 4 years with Anadrill; predominantly in the E&P area, where he gained extensive international experience with projects covering Europe, the Americas, Africa, Middle East, Central Asia, Asia, and Oceania.  At Shell, he held the positions of Hydrocarbon Maturation Planning Lead, Head of Reserves Reporting, and Geoscience Discipline Chief.  He led and was involved in projects covering business development, field developments, and corporate business planning and reporting.  

Mike Wood

Mike Wood

- Technical Director: Development Planning - mike.wood@gaffney-cline.com

Mike, a Technical Director at GCA, has over 35 years' in the oil and gas industry, with experience in a wide range of technical and commercial functions.  Within GCA Mike provides advice on field development planning, project execution, facilities definition, cost estimating, and economic analysis, with a focus on technical / commercial due diligence for project finance or asset acquisition.  

Dr. Stephen Wright

Dr. Stephen Wright

- Technical Director - Geoscience - stephen.wright@gaffney-cline.com

Stephen is Technical Director and a senior Geoscientist with more than 25 years’ experience with major oil companies including Shell, Enterprise, BP and Texaco, plus GCA.   Stephen now works as a Senior Project Manager leading major projects, particularly those involving the assessment of oil and gas Reserves and Resources and the evaluation of exploration portfolios. He has worked in Europe, Central Asia, Middle East, Africa, the Far East and Latin America.

Principal GCA Personnel: Asia Pacific Region

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Arse Clarijs

Arse Clarijs

- Technical Director: Geoscience - arse.kusumastuti@gaffney-cline.com

Arse is a Technical Director with GCA in Singapore and has over 24 years petroleum industry experience in geoscience. Arse joined GCA in 2004 and has been managing and contributing to Reserves and Resources assessments for conventional and unconventional resources, basin studies, project acquisitions and divestments, as well as assets farm-out assistance. Arse previously worked for major and independent oil companies including Eni, Lasmo, Huffco and Lapindo.

Andrew Duncan

Andrew Duncan

- Principal Advisor: Facilities & Costs - andrew.duncan@gaffney-cline.com

Andrew is a Principal Advisor, Facilities Engineer with Gaffney, Cline & Associates (GCA) based in Singapore who has over 30 years of worldwide experience including several international operating companies. He is an experienced project manager who has held a wide number of senior leadership roles within Southeast Asia, and has significant experience of working in Indonesia.  Additionally Andrew has experience of acquisitions and divestments in his NBD roles for various operators, and with GCA, and has a technical background in Facilities Engineering.  Andrew is a member of the Association of International Petroleum Negotiators (AIPN), Society of Petroleum Engineers (SPE), Southeast Asia Petroleum Exploration Society (SEAPEX), and charted member of the Institute of Mechanical Engineers (IMech E).

David Hayes

David Hayes

- Senior Advisor: Commercial/Business Development - david.hayes@gaffney-cline.com

David is a corporate planner with 23 years’ experience in the Asian oil industry with strengths in Mergers & Acquisitions (M&A), business analysis, strategic planning, business development, valuations, and project evaluation. He has held positions in Caltex, ExxonMobil, Singapore Petroleum Company, Commonwealth Bank of Australia and Scotia Waterous, based in Singapore.   He is a member of the Society of Petroleum Engineers (SPE) and Southeast Asia Petroleum Exploration Society (SEAPEX). 

Hu Yundong (Don)

Hu Yundong (Don)

- Senior Advisor: Geoscience - yundong.hu@gaffney-cline.com

Yundong joined GCA in 2008. He had previously worked as a Senior Engineer for PetroChina and an official consultant for the Petroleum Reserves Office (PRO) of China for more than twenty five years. His experience is mainly in oil and gas Reserves estimation, management, and resource policy study. 

Zis Katelis

Zis Katelis

- Principal Advisor: Geophysics - zis.katelis@gaffney-cline.com

Zis Katelis is a GCA Principal Advisor with a career spanning over 20 years working on seismic processing, interpretation projects and workflows, log data integration as well as contributing to and leading integrated technical studies.  He has held various management positions for a major international oil and gas service company for both technical and operational business segments in Australia, Asia and the Middle East. Zis has been with GCA since July 2007, consulting on exploration and development technical projects as well as contributing to Reserves and Resources assessments and technical and commercial studies for conventional and unconventional reservoirs.

Stephen Lane

Stephen Lane

- Technical Director - stephen.lane@gaffney-cline.com

Stephen is a Technical Director with GCA in Singapore and has over 30 years’ experience of providing geological and petrophysical expertise to worldwide clients. Stephen has frequently been involved in the valuation of E&P assets for acquisition and divestment purposes and production of public documents such as Competent Person’s Reports. Wide-ranging exposure and experience of assessing both in-place and recoverable Reserves, including understanding of the inherent uncertainties associated with volumetric or production-based estimates

Doug Peacock

Doug Peacock

- Technical Director - doug.peacock@gaffney-cline.com

Doug is a Technical Director with GCA in Singapore and has over 30 years’ experience in geology and petrophysics with a particular emphasis on 3D reservoir modelling. His geological modelling experience covers all types of reservoirs in many parts of the world and ranges from building models for field development planning and reserves estimation purposes to reviewing and auditing models built by others. He has also worked extensively on reserves estimating, unconventional reservoirs, acquisitions and divestments as well as technical projects.  Doug was an SPE Distinguished Lecturer in 2010-11 and was recently a member of the SPE Oil and Gas Reserves Committee.

Florent Rousset

Florent Rousset

- Regional Director - florent.rousset@gaffney-cline.com

Florent is the Regional Director for GCA in Asia Pacific, based in Singapore.  Florent specializes in providing commercial advisory to upstream players and Sovereigns in Asia Pacific, Middle East, Africa, North and South America.  Prior to this, Florent worked in economics and commercial roles within Baker Hughes and GCA based in Singapore and Houston, Texas.  Florent previously worked for Schlumberger Business Consulting based in Paris and Singapore.

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