Investors are scrambling to identify potential winners from the US capture of Venezuelan leader Nicolás Maduro and President Donald Trump's plan to "run" the nation and deliver an oil boom. Berkshire Hathaway is one contender thanks to its large bet on Chevron, the only US oil major still operating in Venezuela. Berkshire — now led by Greg Abel following Warren Buffett's recent retirement as CEO — is Chevron's largest corporate shareholder with a 6% stake worth about $19 billion, assuming Berkshire hasn't ...