
Andrey Delchev and Partners - Eurolex Bulgaria continues to stand out for its ‘deep industry knowledge’ particularly in the oil and gas sector, but also across the renewable energy, water and mining industries. The team frequently covers the financing and structuring of energy projects, due diligence of energy companies, regulatory compliance advice, representation before the courts and the energy regulator in contentious matters, as well as comprehensive support on tender documentation and concession procedures. Managing partner Andrey Delchev and has extensive expertise in the petrol and natural gas industries, and is supported by Magdalena Valova, Dimitar Delchev and Boriana Chotekova in the team.
Testimonials
Collated independently by Legal 500 research team.
‘The law firm is exceptional in the sector. We can always count on them to find us the right solution.’
‘Dimitar Delchev - beyond his legal strength we value his commitment and availability to the client, his willingness and ability to provide market and local support that goes beyond the customary and adds great value.’
‘What sets this firm apart is their deep industry knowledge and ability to handle complex projects from start to finish. Their team not only excels in negotiations and legal expertise but also has a strong grasp of the technical and financial aspects, ensuring a seamless process. They are proactive, always staying ahead of challenges, and their collaborative approach makes everything run smoothly.’
‘The individuals we've worked with stand out for their deep expertise, responsiveness and personal commitment to our success. They don’t just offer legal advice—they take the time to fully understand our business, which makes their counsel more practical and aligned with our goals. Magdalena Valova has been exceptional in guiding us through complex negotiations, and excels in coordinating technical and financial aspects.’
‘I find the team very professional they are capable of learning new fields, namely PV plants and solar projects.’
‘The reaction of the team always is immediate. The team is always guided by senior partners. Answers always are fast and professional.’
‘The team profound knowledge of the energy sector.’
‘Andrey Delchev has an in-depth knowledge of the local law and practice and the energy sector, which are supported also by his skills in resolving commercial and civil disputes. Delchev is among the first practitioners in the energy-law sector and has an exceptional skills in the public consultation procedures.’
Key clients
- Assarel-Medet JSC
- Bulgarian Mining Chamber
- Bulgarian Petroleum and Gas Association
- Electrohold Bulgaria EAD / (CEZ Group)
- Sungrow Renewable Energy Investment PTE. Ltd., China
- World Bank
- Lukoil Group
- Arrowbio
- Hydrolia AD
- 'Kalcit' Ltd.
Work highlights
- Advised Lukoil Bulgaria in relation to proceedings before the Commission for protection of completion initiated against two companies of the Lukoil Group in Bulgaria.
- Advised the Bulgarian Petroleum and Gas Association on the applicable fuel market regulations (e.g. protection of competition, cartel or abuse of a dominant position charges).
- Advised Sungrow Renewable Energy in relation to the acquisition and construction solar power plants in Bulgaria with first year of operation target of around 100 MW. It is in process of incorporation of subsidiary and opening of representative office in Bulgaria.
Lawyers

Practice head
The lawyer(s) leading their teams.
Andrey Delchev