The scope of Ilyashev & Partners' work in the energy and natural resources sphere covers exploration and exploitation of oil and gas fields, transportation of energy resources, trade in oil and gas, and electricity and natural gas supply to end-use consumers. At the helm of the practice, Mikhail Ilyashev advises on foreign investments in Ukrainian companies and enterprises, structuring of international M&A and asset acquisitions, and corresponding due diligence. Arbitrator Roman Marchenko has a strong track record in energy sector disputes, and Valeriia Gudiy frequently assists clients with regulatory, licensing, and corporate issues in the energy sphere.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Billing & efficiency
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
- ‘Ilyashev & Partners’ energy team is the only firm I trust with our most complex matters. They know the energy market inside out and always come back with solutions that actually work.'
- ‘Roman Marchenko is the lawyer you want by your side in a difficult case. He sees the bigger picture long before anyone else and knows exactly how to turn it into a winning plan. With him, I always feel we are two steps ahead of our opponents.'
- ‘Ilyashev & Partners provides unmatched regulatory insight and strategic clarity in the renewable energy sector. The team combines deep industry expertise with exceptional responsiveness and personal commitment, delivering solutions that set precedents for the entire green energy market in Ukraine.’
- ‘Mikhail Ilyashev stands out as an exceptional strategist and a trusted advisor whose insight extends far beyond legal matters. His ability to see both the broader regulatory landscape and the finest details of each case makes him unique in the Ukrainian market. Mikhail combines strong leadership, deep industry knowledge, and an unwavering personal commitment to achieving the best outcomes for his clients. His advice is always pragmatic, commercially aware, and driven by genuine care for the client’s long-term success.’
- ‘For over 15 years, Ilyashev & Partners have been standing alongside us in the most demanding energy projects, consistently delivering high-quality advice and pragmatic solutions. Unlike many other firms, they not only know the law, they understand the business logic of the energy sector, which allows them to anticipate challenges before they arise and propose workable strategies.'
- ‘Mikhail Ilyashev has been our trusted partner and key contact for many years. His unparalleled expertise in the energy sector is simply extraordinary, but what makes him truly exceptional is his vision. He sees far beyond the immediate legal issues, connecting strategy with long-term business success. His intellect, his leadership, and his rare talent for uniting people around a common goal inspire absolute confidence and admiration.'
Key clients
- JKX Oil & Gas
- Waste Treatment Technologies
- Ukrainian Renewable Energy Association
- Elme Messer Gaas AS
- UkrGaz
Work highlights
Advised the Ukrainian Renewable Energy Association on the legal implications of a Supreme Court ruling invalidating the formula for calculating electricity imbalance costs, preparing strategies for potential recovery of overpaid funds and regulatory adjustments affecting the renewable energy sector.
Assisted an EU company with its participation in the Ukrainian electricity market, including advising on regulatory procedures for electricity imports and providing representation before the National Energy and Utilities Regulatory Commission.
Advised a European energy trader on market entry and cross-border electricity trading in Ukraine, providing comprehensive support on corporate structuring, licensing, tax compliance, and international reporting under the Pillar II and CbCR frameworks.
Practice head
Mikhail Ilyashev
Other key lawyers
Roman Marchenko; Valeriia Gudiy