Berkshire Hathaway to buy Occidental's OxyChem for $9.7 billion, in Buffett's biggest deal in three years ⊕ found 2025 › Oct › 02 (Thu) @ 11:05 UTC a story from CNBC ⚠️ › Top News Berkshire Hathaway ■■ Occidental ■■ OxyChem ■■ Buffett ■■ Warren ■■ CEO ■■ preview sentiment