Energy and natural resources

Posse Herrera Ruiz

Demonstrating ‘deep knowledge of energy law and associated issues’, Posse Herrera Ruiz is a destination practice for clients across the power, oil and gas, and mining industries. The team’s strong transactional expertise is underpinned by a formidable regulatory offering, equipping it to handle the full range of corporate transactions, project development, financing matters and regulatory issues. Energy and environmental law specialist Alvaro José Rodríguez co-heads the department and ’impresses with his extensive knowledge of both Colombian and international energy law’. Rodríguez is particularly noted for his extensive experience in transactional work and recently advised Colwind on the renegotiation of an asset purchase agreement for the sale of five wind power projects. Fellow co-head Mariana Sánchez ‘co-ordinates all teams impeccably’ and recently paired up with Rodríguez to advise Puerto Antioquia on defending grid connection rights endangered due to its failure to deliver a financial guarantee because of force majeure issues. The group also draws on Juan Manuel Cuéllar, who joined in July 2023 from Trina Solar and has also worked in-house at Repsol and Ecopetrol, among others; Erika Serrano Rojas, who was promoted to partner in March 2024 and specialises in environmental law; senior associate Pablo Mejía, who frequently acts as second chair on energy and natural resources matters; and counsel Diana Salazar, who divides her time between the energy and insurance groups.

Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

‘The team is extremely detailed and covers all our legal needs. It resolves on time and invests a lot of time and effort, and the effort is noticeable.’
‘Mariana Sánchez really is exceptional. I have never worked with a person with that level of response and attention. She is our main point of contact and co-ordinates all teams impeccably.’
‘Alongside its deep knowledge of energy law and associated issues, it stands out for its client loyalty, its commitment to providing high-quality services and its ingenuity. There is no case, no matter how difficult, where it cannot give very practical advice. Its collaborative style makes it a pleasure to work with.’
‘Every time we deal with Álvaro José Rodríguez, he impresses with his extensive knowledge of both Colombian and international energy law and industry practice. Álvaro knows the industry and the key players more than anyone and no new turn or development surprises him; he has usually dealt with similar.’
‘Associate Pablo Mejia has a lot of experience and stands out for his initiative, speed and quality in producing the most complex documents. On the environmental side, Erika Serrano is a star and truly impresses with her ability to give quick and practical advice for any complex issue.’
‘A strong team with relevant renewable energy experience in Colombia. The team has the capacity to advise on M&A, private equity transactions, project finance, tax and environmental and social issues.’
‘It demonstrates deep industry and local context understanding; the ability to provide sound advice and insight; the ability to support complex negotiations; and the capacity to meet pressing timelines and produce high-quality deliverables.’
‘The team's leadership, knowledge and mastery of the issues gives clients a lot of security and confidence that its interests are being taken into account.’

Key clients

Anadarko Petroleum Corp
Terpel
Puerto Antioquia
Colwind

Work highlights

Advised Colwind on the renegotiation of an asset-purchase agreement for the sale of five wind-power projects with a capacity of 550MW.
Advised Organización Terpel on the energy regulatory aspects of a potential competition case against the operator of an essential fuel pipeline.
Advised Puerto Antioquia on defending grid connection rights endangered due to its failure to deliver a financial guarantee because of force majeure issues.

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