Samuel Diminas
Group Chief Executive Officer
Samuel Diminas is a global energy executive with over two decades of experience leading complex energy projects. His career includes key roles at the Nigerian Petroleum Development Company, British Petroleum, and Chevron North America Exploration and Production.
He has led major ventures across Africa, Europe, and North America with a proven track record of delivery for IOCs and NOCs in challenging environments. He provides strategic leadership for the Group, driving business growth, global partnerships, and operational excellence. He brings deep expertise in integrating global standards with sustainable local content, community engagement, and value creation in the African energy sector.
Samuel holds a Master's degree in Petroleum Geoscience from Imperial College London and is an alumnus of the Stanford Graduate School of Business.
Brian Waguespack
SVP Operations
Brian Waguespack is responsible for the Group's global operations, project execution, and HSE performance across the USA, Africa, and the UK. With over 28 years of experience in offshore construction, including 18 years specializing in offshore and subsea projects, he brings deep expertise in EPCIC delivery and project management. He oversees all operational functions, ensuring projects are delivered safely, on time, and to the highest international standards, while driving efficiency, compliance, and operational excellence across the Group’s subsidiaries.
Before joining Westpaq, Brian spent 19 years at Cronus Technology Inc., where he managed several major capital projects. He is a Civil Engineer with a B.S. in Civil Engineering from Texas A&M University.
Ngowari Diminas
Senior Vice President, Projects & Engineering
Ngowari Diminas leads the Group’s engineering, project delivery, and technical assurance functions across the USA, Africa, and the UK. With extensive experience in offshore and onshore energy projects, she brings deep expertise in EPCIC, FEED, design engineering, and project controls, ensuring technically robust, cost-effective, and compliant solutions for our clients.
She oversees the full project lifecycle from concept to commissioning, driving engineering excellence, quality, and innovation across all subsidiaries. She is focused on building high-performing engineering teams, strengthening strategic partnerships, and delivering projects to the highest international HSE and quality standards.
Ngo holds a Master’s degree in Oil and Gas Engineering from the Robert Gordon University, Aberdeen, Scotland, and a Master of Business Administration in Global Leadership from the C.T. Bauer College of Business, University of Houston
Jeff Tomlinson
Vice President, Projects & Engineering
Jeff Tomlinson is a global oil & gas executive with over two decades of leadership experience spanning North America, Africa, and Asia, including roles as General Manager, Managing Director, and Country Manager. He has governed joint ventures valued at over $1B and led organizations of up to 600 employees across multiple functions, with a track record of leadership at Wood, VAALCO Energy, Woodside Energy, and ExxonMobil, including several years’ operating in West Africa.
He is responsible for strengthening project and engineering execution across Westpaq’s portfolio and supporting expansion across West Africa, Houston, and the US Gulf Coast.
Jeff holds an MBA from the University of Texas at Austin, a Master of Chemical Engineering from the University of Houston, and a Bachelor of Chemical Engineering from The University of Tulsa. He is passionate about HSE, flawless execution, strong leadership, and integrity, with a focus on accountability, compliance, and delivering results.
Paul Abokhair
VP, Legal and Commercial
Paul Abokhair leads the Group’s legal, contracting, and commercial functions. He brings extensive experience in oil & gas transactions, joint venture structuring, EPCIC contracting, risk management, and regulatory compliance, supporting the Group’s growth and global partnerships.
He oversees all legal and commercial matters, including contract negotiation, corporate governance, and commercial strategy, ensuring robust compliance, risk mitigation, and value protection across the Group’s subsidiaries and projects.
Prior to joining Westpaq, Paul was VP, Corporate and Government Affairs at VAALCO Energy. Prior to that, he was Principal Business Development Advisor – Upstream at Woodside Energy.
Paul holds a Doctorate of Law (J.D.) from St. Mary’s University.
Michelle Moritz
Chief Financial Officer
Michelle leads the Group’s finance, accounting, treasury, and financial planning functions. She brings extensive experience in financial management, corporate finance, and strategic planning, with a focus on driving financial discipline, transparency, and sustainable growth. She oversees financial reporting, budgeting, risk management, and capital allocation, supporting the Group’s global operations and expansion strategy. Michelle is committed to strengthening financial governance and delivering value for stakeholders.
Michelle has held previous positions at Block Advisors, and Mobil Oil Corporation. She has an MBA from the Southern Methodist Univerity, Texas, USA.
Olufemi Olarewaju (Ph.D.)
Chief Sustainability & Compliance Officer
Olufemi Olarewaju leads the Group's sustainability, ESG, HSE, and compliance functions. He brings extensive experience in sustainability strategy, corporate governance, regulatory compliance, and risk management within the energy sector, with deep expertise in aligning global standards with local content requirements and responsible operations.
He oversees the Group's sustainability framework, compliance programs, and HSE performance, ensuring robust governance, environmental stewardship, and stakeholder engagement across all subsidiaries and projects. Prior to joining Westpaq, Femi lectured at the Center for Petroleum, Energy Economics and Law, University of Ibadan, where he taught Political Economy of the Energy Sector, Economics of Energy Efficiency and Sustainability Issues, and National Energy Goals and Instruments.
Femi holds a Doctor of Philosophy in Public Affairs from the School of Economics, Poltical and Policy Sciences, Univerity of Texas at Dallas
Nicole Wise
Global Human Resources Director
Nicole Wise leads the Group's human resources strategy and operations. She brings extensive experience in talent acquisition, organizational development, employee engagement, and HR compliance, with a focus on building high-performing teams and fostering a culture of excellence and inclusion within the energy sector.
She oversees workforce planning, leadership development, compensation and benefits, and employee relations, ensuring alignment with the Group’s business objectives and values. Nicole is committed to attracting, developing, and retaining top talent to drive sustainable growth and operational success.
Prio to Joining Westpaq, Nicole was Global Human Resources Leader at Arcadis, Caterpillar Inc.
Nicole holds a Master of Business Administration, and MBA, Human Resources Management from the Brenau University
