Martínez de Hoz & Rueda advises local and international companies on a wide range of public and administrative law matters, with a particular focus on the energy sector and dispute resolution. The team handles interdisciplinary cases involving contracts and public utilities for some of Latin America’s largest energy companies and is experienced in concessions, licences, authorisations from federal and provincial authorities, foreign investment matters, and administrative and judicial proceedings. Following the July 2025 departure of former co-head Jimena Vega Olmos, Juan Cruz Azzarri, a specialist in administrative and constitutional law, antitrust, and public utilities and contracts, now oversees the practice.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'Knowledge of regulations, the political environment, and business in Argentina, with a practical approach.'
- 'Excellent professionals, always available, prompt in responding to any query or task, and with a vision that combines knowledge of the law and its practical application in business.'
Key clients
- Aon Risk Services
- CAPEX
- CGC
- Equinor
- Exxon
- Goldwind
- International Finance Corporation
- JinkoSolar
- Mitsui & Co.
- Neoen
- Orazul Energy
- Industrias Juan F. Secco
Work highlights
Defended Equinor Argentina in a significant energy sector litigation against petitions for injunctive relief by NGOs and local residents to stop their operations.
Advised PECOM on its participation in the "Andes Project", a bidding public round for the sale of the majority of YPF S.A.'s conventional hydrocarbon blocks in various provinces.
Lawyers
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Juan Cruz Azzarri