Carlyle
Carlyle and EBRD agree BSOG sale to Mazarine Energy
Summary: Carlyle and EBRD announced an agreement to sell BSOG to Mazarine Energy, subject to customary regulatory approvals.
Why it matters: The agreement is a proposed ownership transition, not evidence of a completed exit or realized proceeds.
Summary
Carlyle and the European Bank for Reconstruction and Development announced on October 29, 2026 that they had agreed to sell Black Sea Oil & Gas S.A. and BSOG Holding Activity S.A., together BSOG, to Mazarine Energy B.V. The transaction is subject to customary regulatory approvals. According to the announcement, BSOG will remain operator of the Midia Gas Development project on completion.
Why it matters
For due-diligence readers, the agreement marks a proposed ownership transition rather than a completed realization. The stated operator continuity separates the planned shareholder change from the project’s operating role, but neither closing nor realized proceeds can be inferred from the announcement.
Source notes
- Carlyle announcement, October 29, 2026 — primary transaction-party press release, not independent validation. The release does not disclose a sale price, completion date or specific selling fund. Historical project investment is not sale consideration.
What to watch
Public confirmation of regulatory approvals and closing would establish whether the proposed ownership transfer has occurred. Any later disclosure of the selling vehicle or transaction economics would sharpen the interpretation without implying a fund return from the agreement alone.