Berkshire now owns 264 million Occidental shares worth about $12 billion, a 28% stake in the big U.S.-focused energy company.

Occidental Petroleum ( OXY) Fell to its lowest level in more than six weeks following a downgrade from Goldman Sachs. The ...

Should you invest in the hottest energy stocks? Investing in individual stocks, particularly in the energy sector, can be difficult. You need to understa ...

Goldman Sachs downgrades Occidental Petroleum to Sell, citing focus on balance sheet improvements over capital returns.

His story begins in 1984, when Weschler was just 22. He was earning $22,000 a year as a junior financial analyst and decided ...

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