This is how all industries work. There is no free market competition in anything. Bakeries collude on bread prices. Chocolatiers collude on candy bar prices. Etc etc. This is what happens when government kneels to business lobbyists instead of regulating business.
The part I like is when people burn their savings with their car running while waiting in line to fuel up. Costco and Safeway have great gas prices but holy cow their customers are morons