A gas station or gasoline station is a place that sells gasoline and diesel fuel. In the United Kingdom and Ireland they are known as Petrol Stations where they sell (not suprisingly) petrol and diesel fuel.
A gas station that also offers such services as oil change and mechanical repairs to automobiles is called a service station. Until the 1970s the vast majority of gas stations were service stations; now only a minority are.
In the United States, many gas stations are also convenience stores that sell food, beverages, cigarettes, and sometimes auto parts, among other things.
See also: List of automotive fuel brands