Occidental ends an era of big deals with $9.7B divestiture of its chemical unit By Holly Duchmann - October 2, 2025 FacebookTwitterLinkedinEmailPrint Occidental Petroleum has wrapped up its asset-sale program with a $9.7 billion divestiture of its chemical unit to Berkshire Hathaway, Bloomberg reports. CEO Vicki Hollub said Thursday that t… Already an INSIDER? Sign in.