O'Farrell is best known for its public law, dispute resolution and electricity expertise, and calls on partners from these practice areas to support oil-and-gas clients with advice on regulation, permitting, tariff reviews, bid processes, M&A and contentious matters. The team handles a mix of upstream, downstream and logistics work, and is also sought out by clients involved in unconventional hydrocarbons projects – indeed, it is an active presence in the Vaca Muerta shale-gas region. The practice is co-led by the vastly experienced M&A, regulation and litigation veteran Uriel F. O'Farrell; Agustín Siboldi, whose practice covers exploration, production, distribution and commercialisation work; and public law partner Agustina Fanelli Evans. Since the conclusion of research, the firm has announced a significant new hire with the return of former of counsel Jorge Luis Ariza, whose recent in-house experience includes four years at Pan American Energy; a specialist in energy, energy regulations and major project structuring, he returns as a partner - effective as of October 2024.
Key clients
- Pampa Energía
- Naturgy Ban
- Total
- Amarilla Gas and Cañuela Gas
- Naturgy Spain
- Axion Argentina
- Unipar Indupa
- Energy Consulting Services
- YPF
- ENI
- Gas Andes Argentina
- Hattrick Energy
- Managers of Aleph Midstream
- Petroperú
- Gasnor
- Energía Compañia Petrolera
Work highlights
- Advised Arthur D. Little on energy transition matters and the implementation of ESG policy across its business.
- Provided legal advice to Pampa Energía in connection with the renegotiation of the conditions of a national incentive scheme to produce natural gas.
- Provides legal advice to ENI on bidding and managing offshore tender application processes.
Practice head
The lawyer(s) leading their teams.
Uriel O’Farrell, Agustín Siboldi, Agustina Fanelli Evans