Active in both the upstream and downstream segments, Campos Mello Advogados is regularly engaged by industry players for transactional, regulatory and litigation matters. Following its September 2025 integration with Schmidt, Valois, Miranda, Ferreira & Agel Advogados, the combined firm offers enhanced expertise across the oil and gas chain, advising on cross-border transactions, financings, LNG and biomethane projects, gas supply agreements and regulatory issues. Key contacts include São Paulo’s Fabiano Gallo, who is experienced in M&A and foreign investments, and Schmit Valois partners Paulo Valois and Rogério Sobral De Miranda. Former co-heads Alexandre Bittencourt Calmon, Marcelo Frazão and João Marçal Martins, together with several partners and associates, departed in November 2024.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • 'The team combines a multidisciplinary approach with in-depth technical knowledge of the sector, offering approaches and solutions tailored to the specificities of the industry.'
  • 'Paulo Valois follows cases closely and strategically, always offering relevant input on the peculiarities of the sector.'

Key clients

  • Maha Energy
  • MODEC
  • AET Shuttle Tankers
  • Acelen
  • Origem Energia
  • Enauta
  • CNOOC
  • Yinson Offshore
  • Misc Berhad
  • Ipiranga Produtos de Petroleo S.A..
  • DOF Subsea
  • Eneva S.A.
  • Helix Energy
  • Strohm B.V.
  • Electromagnetic Geoservices - EMGS
  • Reach Subsea
  • DTA Engenharia

Work highlights

Assisted Maha Energy with the merger of Maha Energy (Holding) Brasil with 3R Petroleum Óleo e Gás.
Supported CNOOC throughout its participation in ANP’s 4th Open Acreage Bid Round.
Advised MDC Energia on conducting due diligence for the joint venture with the Lara Group on a biomethane plant.

Lawyers

Leading partners

The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Rogério Sobral De Miranda

Practice head

Fabiano Gallo

Other key lawyers

Paulo Valois Pires; Rogério Miranda