Harbour Energy Regulatory News (HBR)

Harbour Energy plc ("Harbour" or the "Company")

Completion of Waldorf acquisition

10 July 2026

Harbour Energy announces that it has completed the acquisition of substantially all the subsidiaries of Waldorf Energy Partners Ltd and Waldorf Production Ltd (Waldorf) in the UK for $163 million1. This follows receipt of all regulatory approvals and full and final settlement of all creditors' claims against the acquired Waldorf subsidiaries.

Enquiries

Harbour Energy plc +44 (0) 203 833 2421

Elizabeth Brooks, SVP Investor Relations

Andy Norman, SVP Communications

Email: CorporateExternalCommunications@harbourenergy.com

About Harbour EnergySince its creation in 2014, Harbour has grown to become one of the world's largest and most geographically diverse independent oil and gas companies.

Today, Harbour is producing between 475,000 and 500,000 barrels of oil equivalent per day with significant production in Norway, the UK, the US, Germany, Argentina and North Africa. Harbour benefits from competitive operating costs and resilient margins with significant exposure to Brent oil and European gas prices. In addition, Harbour has a broad set of growth options including near-infrastructure opportunities in Norway, unconventional scalable opportunities in Argentina and conventional offshore projects in Mexico and Indonesia.

With low GHG emissions intensity and a leading CO2 storage position in Europe, Harbour remains committed to producing oil and gas safely and responsibly to help meet the world's energy needs.

Harbour is headquartered in London with approximately 3,200 employees and direct contract staff across its operations and offices.

1 The final consideration is post customary adjustments and reflects a transaction effective date of 1 January 2025