Berkshire Hathaway, Inc. (NYSE:BRK) (NYSE:BRK) is in talks to acquire Occidental Petroleum Corp.‘s (NYSE:OXY) chemical unit, OxyChem, in a deal valued at roughly 10billion.Iffinalized,itwouldbeBerkshire′sbiggestpurchasesince2022andcouldbecompletedsoon,accordingtotheWallStreetJournal.OXYstockismoving.Seethereal−timepriceactionhere.TheDetails:Occidental,basedinHouston,isprimarilyknownforoilandgas,withamarketcapitalizationofabout46 billion. OxyChem makes pr ...