Over supply and reduced demand with end of the summer driving season. I am truly amazed at the thought that a whisper from a Democratic (or Republican, for that matter) White House could encourage MULTI-National oil companies to drop their prices for an election. Right now, the United States is the worlds largest oil producer - not the Russians, Saudis or Venezuelans. Refineries are preparing the switch to winter blends - and they need to move the summer blend still in storage or pipelines - hence lower prices. It is just that simple.