Gas prices do defy the norms but they do fall and rise based on demand and raw material cost. What's different is how fast they are able to pass along cost increases and a kind of phase shift. I'm not sure why that is, perhaps we've been conditioned to accept it by various oil supply issues or there is some loose cooperation in the form of follow the leader. If there were real collusion some DA like NY's would make a big name for himself/herself ferreting it out. Someone on the news today said they sell based on replacement price rather than supply price. If true both ways then it averages out.

Regards,
Mark