With a less diverse big company that might be possible. Boycotts have been tried against ExxonMobil before and got absolutely nowhere. One factor is the little realized fact that the gas stations bearing those company names only provide a portion of the company's income. Petroleum products permeate our entire society and culture and ExxonMobil has a stake in pretty much all of it. Every time you drink from a plastic cup, use your IPhone, watch your TV, turn on your computer, start your car, walk down street, fly in a jet airplane or chew gum you're probably using an ExxonMobil product.