Nationwide service station provides conventional gasoline and convenience store to help travelers reach their destinations.. In Short Known as a discount gasoline brand, these service stations can be found nationwide. The name originates from Mision San Antonio de Valero, a mission founded in 1718 that is better recognized as The Alamo. As travelers stop in to fuel their vehicles, its convenience store offers automotive oil, candy, snacks, hot and cold beverages. Customers can pay at the pump using credit and ATM cards.