Management

After working in France and the Ivory Coast, Olivier de Langavant joined Elf Aquitaine (later Total) in 1981 as a Reservoir Engineer, successively in France, Congo, USA and Colombia, before being appointed Operations Director in the Netherlands.

He was deputy chief executive officer of Total E&P Angola from 1998 to 2002, then chief executive officer of TOTAL E&P Myanmar. In 2005, he joined Total E&P Angola again as chief executive officer. In 2009, Olivier de Langavant was appointed Head of Finance, Economics and Information Systems at Total E&P group's headquarters, then, from 2011, he became Head of Strategy, Business Development and R&D at Total E&P and finally Head of Asia-Pacific based in Singapore from 2015 to 2017. From 2012, he was also a member of the management committee at Total Group (then the Group Performance Committee from 2015).

Olivier de Langavant has been a director of Seplat Energy Ltd since 28 January 2020.

Nadine Andriatoraka joined Maurel & Prom at the end of 2019 as Head of Personnel Management and Remuneration. She was appointed head of human resources in September 2022.

She has over 30 years' experience in human resources. From 1989 to 2009, she held a number of positions with the Tokheim Group, including Human Resources Manager from 2001. She then joined the Schindler Group, where she was Head of Personnel Management and Remuneration for 10 years.

Nadine Andriatoraka holds a law degree from the University of Paris XI and an MBA in Human Resources Management from the University of Paris Dauphine.

Bruno Blin joined Maurel & Prom in November 2024 as Geosciences Director.

He has over 33 years' experience in the oil industry. He began his career in 1991 with the Total Group as a well geologist, then moved on to various positions in different countries, including Syria and Cameroon, before taking over responsibility for exploration in North Africa in 2003 within the Exploration Coordination and Arbitration division. In 2005, he joined Repsol's exploration quality control department. In 2006, he joined Shell International as deputy to the head of deep water in Nigeria, before becoming regional geologist in Libya in 2009. In 2011, he joined Perenco in Cameroon as Subsurface Manager and then in Turkey as Geosciences Manager. From 2017 to 2024, he was Head of geosciences at Assala Gabon.

Bruno Blin holds a doctorate in geology from the University of Brest and is a graduate of the Institut Français du Pétrole.

Patrick Deygas joined Maurel & Prom in 2008 as Group Financial Controller, then Deputy Chief Financial Officer from 2014. In 2017, he was appointed Group Chief Financial Officer.

He has over 30 years' experience in audit and finance. He held a number of positions in audit firms between 1993 and 2003, including Salustro Reydel and Ernst & Young Audit. In 2003, he joined Baxi as Financial Controller.

Patrick Deygas holds a Master's degree in business law, a post-graduate diploma (DEA) in tax law, and a certification as a chartered accountant.

Corinne Le Caignec joined Maurel & Prom in September 2025 as Chief Sustainability Officer.

She has more than 20 years of experience in CSR, sustainable development, environment, and climate. She began her career in 1995 at the ArcelorMittal Group, where she successively held positions as Marketing Manager in the specialty steels subsidiary, Environmental Coordination Manager, Deputy Head of Controlling for the stainless steel division, and Program Manager within the Construction Development Department. In 2009, she was appointed Environment and Climate Director of ArcelorMittal France, where she led strategic and complex projects related to Sustainable Development (low-carbon steel production, reduction of environmental impacts, carbon capture and storage). In 2019, she joined JCDecaux as Sustainability, Risk Management and Extra-Financial Performance Manager. From 2020 to 2023, she headed Sustainability at Kshuttle, a software company specializing in performance management solutions. More recently, she was responsible for defining and deploying the CSR strategy at Belambra, France’s leading holiday club operator.

Corinne Le Caignec is a graduate of the École des Mines and holds a Master’s degree in Environment from ISIGE.

Pablo Liemann joined Maurel & Prom in September 2006 as joint venture manager. In 2017, he was appointed Head of Business Development.

He has over 30 years' experience in the oil and gas industry. He began his career with Hocol (a Shell subsidiary) in Colombia, where he held a number of positions, most recently as New Ventures Manager.

Pablo Liemann holds a Bachelor's degree in Civil Engineering from EAFIT University (Colombia) and a Master's degree in Energy and Mineral Resources from the University of Texas at Austin.

Mathieu Thabault joined Maurel & Prom in Gabon in 2018, first as Deputy Managing Director and then Managing Director from January 2021. He was appointed Chief Operating Officer in September 2024.

He has around 20 years' experience in the oil industry. He began his career in 2005 at Total as an economist. From 2007 to 2018, he joined Perenco, where he held several positions in Africa: project engineer, project manager and production
manager. He then became head of operations in Trinidad.

Mathieu Thabault is a graduate of the Ecole Nationale des Arts et Métiers and the Institut Français du Pétrole.

Alain Torre joined Maurel & Prom in January 2008 as Company Secretary.

He has over 30 years' experience in business law and human resources. He began his career at the end of 1989 with Foselev as head of legal affairs, before joining Total in 1994 as head of corporate legal affairs for the Exploration Production division. He became head of legal affairs for the Lafayette Service Laser group at the end of 2000, a position he held for more than 7 years.

Alain Torre holds a post-graduate diploma (DESS) in foreign trade and a diploma in legal consultancy (international option) from the Faculty of Law in Aix-en-Provence.