It has been a good 2026 so far for many oil companies, with the conflict in the Middle East driving prices higher and lining the pockets of major companies. Chevron (NYSE: CVX) and ExxonMobil (NYSE: XOM), the two largest American oil companies, have long been the standard for big oil dividend payers. But if you're looking for a stock to invest in for passive income, which one is the go-to? Why Chevron stands out for income right nowIf you're focused on maximizing your passive income right now, Chevron is the better choice. At the time of writing, Chevron's dividend yield is 3.7% compared to ExxonMobil's 2.7%.