5 Largest Gas Station Chains in the US

2. Exxon Mobil Corporation (NYSE:XOM)

Number of stations in the U.S.: 12,099

Number of cities present in: 4,089

The first company in our list to have more than 10,000 gas stations in the United States, Exxon Mobil Corporation (NYSE:XOM) is headquartered in Texas and is the biggest descendant of the famous Standard Oil, which was the biggest oil company of its time. Exxon Mobil Corporation (NYSE:XOM) has one of the highest market caps in the world.

With nearly 2,000 gas stations in Texas, Exxon Mobil Corporation (NYSE:XOM) has its gas stations concentrated in the state where its headquartered, making up around 16% of all of the company’s gas stations.