Berkshire Hathaway is buying Occidental Petroleum’s chemical division for $9.7 billion in what may be the last big acquisition involving the consummate dealmaker, Warren Buffett.

Buffett wasn’t mentioned anywhere in materials released by Berkshire Hathaway discussing the deal Thursday, potentially signaling a passing of the torch to Vice Chair Greg Abel, to whom Buffet will hand the CEO title in January.

Buffett will remain chairman at Berkshire and will still be involved in deciding how to spend the conglomerate’s colossal pile of more than $344 billion in cash.

Berkshire’s cash reserves have been growing for years because Buffett has been unable to find any major acquisitions at attractive prices since completing the $11.6 billion acquisition of Alleghany Insurance in 2022. Prices for

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