Signed · Romania · Energy and utilities
Mazarine Energy agrees to acquire Black Sea Oil & Gas.
Mazarine Energy, an independent oil and gas company headquartered in The Hague, agreed on 29 October 2026 to acquire Black Sea Oil & Gas from Carlyle and the EBRD. The Bucharest-based company is Romania's largest offshore gas producer and operates the Midia Gas Development project; the deal is subject to regulatory approvals. It was signed on 29 October 2026. It had not completed by 2 November 2026.
Signing 29 October 2026
- Buyer
- Mazarine Energy B.V. ·The Hague, Netherlands
- Target
- Black Sea Oil & Gas S.A. (with BSOG Holding Activity S.A.) ·Bucharest, Romania
- Type
- Acquisition
- Announced
- 29 October 2026
- Signed
- 29 October 2026
- Value
- Not disclosed
- People
- Not stated in the release
- Last checked
- 2 November 2026
The people side in Romania
- Where the deal needs EU merger clearance, the buyer may not implement it before clearance. EU Merger Regulation (Council Regulation (EC) No 139/2004), article 7
- In an asset deal, staff move on their existing terms, and the transfer alone is no ground for dismissal. Acquired Rights Directive (Council Directive 2001/23/EC), articles 3 and 4
- In an asset or business transfer, seller and buyer each inform their staff representatives in good time of the date, reasons, implications and planned measures, and consult on those measures. Acquired Rights Directive (Council Directive 2001/23/EC), article 7
- Depending on the country, undertakings with 50 or more employees, or establishments with 20 or more, inform and consult employee representatives on decisions likely to change work organisation or contractual relations substantially. Information and Consultation Directive (Directive 2002/14/EC), articles 3 and 4
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