Mr Marcos Patrón Costas > Allende & Brea > BUENOS AIRES, Argentina > Lawyer Profile

Allende & Brea
Maipú 1300, Piso 11, C1006ACT

Work Department

Energy and Natural Resources


Partner. He regularly advises local and international clients, in a broad range of matters, dedicating most of his time to energy and natural resources and mergers and acquisitions. His usual practice also includes corporate finance and project finance.


Marcos worked as an International Attorney at the New York office of Cleary Gottlieb Steen & Hamilton, advising local and foreign companies on corporate matters and sovereign governments in debt securities offerings.


Bar Association of the City of Buenos Aires


Marcos obtained his law degree from the Law School of “Universidad Austral”, and obtained a masters degree from University of Virginia School of Law, with a focus on business law. He also obtained a degree on the Legal and Economic Structure of Energy Regulation from the School of Law of the Universidad de Buenos Aires.

Lawyer Rankings

Argentina > Energy and natural resources > Electricity

Allende & Brea’s multidisciplinary electricity practice had a strong year; most notably, it continued to advise Nucleoeléctrica Argentina on its agreement with China National Nuclear Corporation for the construction of two nuclear power plants, worth $12bn. It also advises Wärtsilä Argentina and Siemens on Argentine power projects. Marcos Patrón Costas spearheads the power practice and specialises in transactional matters.

Argentina > Energy and natural resources > Oil and gas

Allende & Brea has a significant position in the oilfield services sphere, where it acts for major multinational names such as Apergy Corporation, FMC Technologies and Weatherford. The cross-practice group advises on transactions, regulatory issues and day-to-day matters, with the ability to draw upon the firm’s full-service offering for complex work. Marcos Patrón Costas heads the oil-and-gas team, while mining specialist Florencia Heredia spearheads the wider energy department.