Welligence UK M&A | Harbour Energy acquires Waldorf Production

December 23, 2025

Harbour Energy’s acquisition of Waldorf Production’s UK North Sea assets reshapes the company’s portfolio and tax profile. The transaction deepens exposure to the operated Catcher hub and a material non operated stake in Kraken heavy oil. Combined, these assets lift Harbour’s production outlook and diversify its UK North Sea cash flow base.

Tax losses sit at the centre of this M&A story. Transferred Corporation Tax, Supplementary Charge and Energy Profits Levy losses sharply reduce Harbour’s future UK tax exposure. Harbour also benefits from cash backed decommissioning securities, which improve near term liquidity. The deal underlines how targeted UK North Sea M&A can unlock value even within a challenging fiscal regime.