There isn't a collusion to raise gas prices.
I believe there is. It's just being done on a much higher level, and those with much more money, than gas station owners.
Demand goes down, gas prices go down, refineries slow production, gas prices go back up.
That chart I posted up above is fluid, meaning it remains current. Check out the latest oil prices versus gas prices.
You are joking right? It just happened a week ago.
It happens every couple of weeks.