Isn't this a much bigger source of the oil price problem than anyone gives it credit to be?

We all want to blame the oil companies trying to make a buck, some want to blame the Arabs, some know that the demand in oil consumption of countries like China and India is increasing the price and that supply is off because of instability in Nigeria and the lunatic in Venezuela. But very few are taking into account the commodities speculators on Wall Street who are making money hand over fist betting on the flow of oil. Is there a way that we could take them out of the equation and bring the price down to a sensible level?