I'm pretty sure oil speculators have a lot to do with the price drop of crude and gas. Didnt Obama mention few times in March of this year that he was going to hamstring rampant oil speculation. It seems to me that regulation of speculation would be the easiest fastest way to lower gas prices in the short term.
"There comes a time when the operation of the machine becomes so odious, makes you so sick at heart, that you can't take part, you can't even passively take part. And you've got to put your bodies on the gears, and upon the wheels, upon the levers, upon all the apparatus. And you've got to make it stop