Occidental Petroleum 4% of Berkshire Portfolio, Down 16.8% in 2025
Berkshire Hathaway holds a 4.0% stake in Occidental Petroleum, which posted a 16.8% loss in 2025. New CEO Greg Abel’s upcoming shareholder letter and Q4 report could signal whether the conglomerate will trim underperformers like Occidental in its $300 billion investment portfolio.
1. Berkshire's Occidental Position
Berkshire Hathaway’s latest 13F shows a 4.0% weighting in Occidental Petroleum, making it one of the conglomerate’s top ten holdings alongside Apple, American Express and Bank of America.
2. Occidental's 2025 Performance
Occidental Petroleum shares declined by 16.8% over 2025, underperforming eight of Berkshire’s other top holdings and trailing the S&P 500’s 16.6% gain for the year.
3. Abel's Potential Portfolio Review
New CEO Greg Abel may use the upcoming shareholder letter to address underperforming positions and could decide whether to reduce or retain Occidental exposure as part of a broader portfolio rebalancing.
4. Implications for Occidental
Any decision by Berkshire to trim its 4.0% stake could pressure Occidental shares, while continued support might signal confidence in its long‐term oil and gas fundamentals.