About

Serving as legal manager at Pampa Energía, Argentina’s largest independent energy company, Mariano Romero de Haz is described by nominating sources as ‘an excellent legal manager with firm knowledge of Argentina’s energy business’. Pampa Energía engages in the generation, transmission, and distribution, of electricity in Argentina. It is also involved in the exploration and production, as well as refining and distribution of oil and gas in Argentina, Venezuela, and Ecuador. As a fast growing energy company, Pampa Energía and its legal team face constant changes and challenges. Aiming to provide the business with the best possible advice, Romero and his team adopted various strategies to quickly adapt to new business circumstances. As a result, such commitment ensures ‘the quality of our legal service is not being affected by the continuous changes’, according to Romero. With over 20 years of experience in the oil and gas industry, Romero provides solid support for the company on a wide range of legal matters. During the last three years, he actively participated in negotiating M&A deals and dealing with litigation cases across different jurisdictions. Romero started his in-house career in 2001, working for Eg3 as a senior lawyer. He then joined Petrobras Energía in 2004 and later Pampa Energía in 2006. When talking about his past in-house experience, he says: ‘Corporate life trained me as a complete professional, with skills that allowed me to grow to my current position’.