No need to ignore it. This is exactly why gas stations tend not to make much profit on gas.

In my area, there's one notorious gas station that's a couple miles away from any other commerce but has a reasonably large amount of traffic passing by. Amazingly, its prices are always about 50% higher than everywhere else.

Competition works when it exists. Yes, you also have to factor in supply. That's why the phrase is "supply and demand."