Warren Buffett: Occidental Petroleum The Oracle of Omaha, who's been CEO of Berkshire Hathaway (NYSE: BRK.A)(NYSE: BRK.B) since 1965, probably needs no introduction. Everything from weak economic growth and historically high inflation to Russia's invasion of Ukraine further upsetting the global energy supply chain has contributed to this challenging year. Not only is this saving the roughly six dozen financial institutions Upstart is partnered with time and money, but it's giving loan applicants who might otherwise be denied through the traditional vetting process an opportunity.