BP has announced a significant strategic move, agreeing to sell a 65% stake in its iconic lubricants business, Castrol, to US investment firm Stonepeak Partners. The deal, valued at $10.1 billion including debt, is a key component of BP’s broader strategy to divest assets, reduce debt, and refocus on its core operations.
Key Takeaways
- BP is selling a 65% stake in Castrol to Stonepeak for $10.1 billion.
- The transaction is expected to generate approximately $6 billion in net proceeds for BP.
- BP will retain a 35% stake in Castrol through a joint venture.
- The deal is part of BP’s larger $20 billion divestment program.
- Proceeds will be used to significantly strengthen BP’s balance sheet and pay down debt.
Strategic Reshuffle at BP
The sale marks a pivotal moment for BP, particularly under the new leadership of Chairman Albert Manifold. This move is part of a wider effort to sell $20 billion in assets, driven in part by pressure from activist investor Elliott Investment Management to cut costs and reduce debt. The $6 billion in proceeds from the Castrol sale will be directly applied to paying down BP’s existing debt, which stood at over $26 billion at the end of its latest financial quarter.
Carol Howle, interim chief executive at BP, stated that the transaction is an "important milestone in the ongoing delivery of our reset strategy." She added that the company is "reducing complexity, focusing the downstream on our leading integrated businesses and accelerating delivery of our plan." This strategic reset follows a period where BP has been reassessing its pivot towards renewable energy.
Castrol’s Future and BP’s Continued Involvement
Stonepeak will acquire a 65% stake in Castrol, with BP retaining a 35% interest through a joint venture. This structure allows BP to maintain exposure to Castrol’s "growth plan" and provides future optionality. The Castrol business encompasses lubricants for automotive and industrial sectors, and has also been developing liquid cooling fluids for data centres. The deal is anticipated to close by the end of 2026, subject to regulatory approvals.
Anthony Borreca, senior managing director at Stonepeak, highlighted the critical nature of lubricants and Castrol’s "126-year heritage" in creating a leading market position and an "iconic brand."
Financial Implications and Market Reaction
The sale of Castrol is a significant step towards BP’s $20 billion divestment target, with the company having now completed or announced over half of this programme. While the proceeds fall short of some initial expectations, the deal is seen by analysts as a positive move that reinforces BP’s strategy to reduce net debt and refocus its downstream operations. BP’s shares saw a modest increase in early trading following the announcement.
Sources
- Access Restricted, The Telegraph.
- BP to sell majority stake in $10bn Castrol business to US investment firm | BP, The Guardian.
- BP offloads 65% stake in Castrol for $10.1bn – Daily Business, Daily Business.
- BP to Sell Majority Stake in Castrol Business for $6 Billion, Yahoo Finance.

