Prices at gas stations work completely off of supply and demand. What would indicate otherwise to you? Try to put aside conspiracy theories regarding "big oil" and the "Bush dynasty" that's been force fed to you by the lying liberal socialist machine.
Little OT here; never intended it to become a discussion in itself, but...
Experience pretty well indicates it to me otherwise. Long ago, used to pump gas in a full-service station. I worked alot of graveyard shifts - we'd get a truck in to fill the tanks on wednesday....friday (noon, usually), price would go up. Week after week. Station kitty-corner to us would rise/lower to match whatever we did within about a half hour. It's better here(CA) than when I was living in Canada. I've seen price jump $0.10/l ($0.40 a gallon) just because it was a long weekend. But they got a whole other problem because of the dominance of Petro Canada...
anyways, you might call it supply and demand, I call it collusion...and no matter what else, It has NOT ONE THING to do with SOE or SWG
...but it does pass the time...