I don't know how it is in the US, but in France, yes, most gas stations are owned by adjacent stores and they make really little margins (actually, there are fr

I don't know how it is in the US, but in France, yes, most gas stations are owned by adjacent stores and they make really little margins (actually, there are frequent sales of gasoline at cost price). In fact, when buying gasoline in those stations, it's common to receive some voucher for the owner's store. Other stations are owned by petrol corporations but they are in direct competition when they are near stores or they are very expensive when they are located on our highways, which are privatized(and it's a shame), so they are in some sort of closed market since you cannot leave the highway without paying.