BP Divests Castrol Majority Stake in Strategic Refocus 2025

BP has announced the sale of a 65 per cent stake in Castrol, its historic British engine oil business, to New York-based investment firm Stonepeak. The transaction, valued at six billion US dollars and placing Castrol’s enterprise value at ten billion US dollars, constitutes BP’s largest divestment in more than a decade. The proceeds will be directed towards reducing the company’s considerable debt, which currently totals twenty six billion US dollars.

Castrol, established one hundred and twenty six years ago by Charles Wakefield, gained prominence through pioneering lubricants designed for the demands of early twentieth-century engines. The brand rose to international recognition via longstanding sponsorships in motorsport, and its products have supported landmark achievements including record-setting land-speed cars, pioneering aviation and, more recently, Nasa’s Curiosity rover on Mars.

The sale aligns with BP’s revised corporate strategy implemented under the leadership of former chief executive Murray Auchincloss. He committed to lowering net debt by between fourteen and eighteen billion US dollars by 2027. The planned divestment of Castrol represents a key milestone in this effort and reflects a broader shift in BP’s downstream focus towards integrated businesses, streamlining operations and scaling back investments in renewable initiatives.

BP will retain a 35 per cent minority interest in Castrol for the foreseeable future. Carol Howle, interim chief executive, described the deal as a positive outcome for all stakeholders and a significant step in pursuing BP’s restructuring agenda. The company is also navigating a major leadership transition, with Woodside Petroleum’s Meg O’Neill scheduled to become BP’s first female and non-internal chief executive in April 2026.

The broader sector context sees BP seeking operational simplification and improved balance sheet metrics against a backdrop of sustained volatility in global energy markets. Castrol’s enduring legacy will continue, but now under majority ownership outside the BP portfolio for the first time in its modern history.