Oil & Gas

“Marval O'Farrell Mairal's up-to-date understanding of the market enables them to align their advice with the client’s business vision and needs. Their foresight consistently adds real strategic value.”
Chambers Latin America, 2026

Marval’s oil and gas practice group has played a leading role in Argentina’s hydrocarbons’ sector for more than 15 years. The Argentine oil & gas industry is at the edge of a new phase; regaining regain self-sufficiency poses a great challenge for the sector. Unconventional resources and the offshore represent a unique opportunity to achieve this goal. However, developing these resources requires intensive capital and high-end technology and presents substantial regulatory and environmental matters that need to be carefully addressed from an integrated standpoint.
 

Our oil and gas practice group advises IOCs, NOCs, investors (equity and debt) and oil services companies on matters covering the entire hydrocarbons’ supply chain, from E&P to mid and downstream, including specific LNG-related matters, and all other aspects of this regulated industry.


We are renowned for assisting clients with complex and sophisticated transactions. We have a particularly strong track record in the natural gas market and have been involved in many of the high-profile disputes in this area.

Our oil and gas practice covers a wide range of matters including:

  • Advice on upstream projects, including regulatory and environmental issues, both at federal and provincial levels, and negotiation of association contracts (JOAs, farm-in and assignment agreements), production sale arrangements, bid and study agreements and oil services contracts.
  • Hydrocarbons’ transportation and distribution
  • Commercial and regulatory matters, including antitrust issues.
  • Advice on contracts and customs’ matters
  • M&As
  • Financing
  • Litigation