"The fact is that high gasoline prices have less to do with supply and demand and more to do with Wall Street speculators driving prices up in the energy futures market." Presidential candidate Bernie Sanders made that claim in the summer of summer of 2014, when crude was at about $100 a barrel.
At that time, Sanders was one of many people who called for government intervention in the rising price of crude.
In today's market, however, many consider the oversupply is the culprit of downward pressure in oil prices.
"If the market is going up, you buy; if you think it's going down, you sell. It's a matter of supply and demand," Brad Schaeffer, natural gas options/futures Broker at BlackBarrel Energy, told CNBC's "Closing Bell" on Friday.