Many people may have already bought into these cheap stocks trading at ultra-low valuations hoping to catch a bounce, but these four stocks are not done falling yet. If you own any of these stocks you must sell now.

Crude oil recently traded below $30 a barrel and now the prospects of it hitting $20 a barrel is becoming increasingly likely. Demand from emerging markets is slowing as their economies falter and the US Energy Information Administration has cut its forecast for oil, saying the oil market would be out of balance until at least 2017.

Whether you want to admit it or not, you  must at least consider the possibility of oil hitting $20 a barrel this year. And with the threat of oil hitting $20 a barrel, there are few places to hide out in the energy space. In the least, there’s a handful of stocks that you should be dumping today.

Think about this – Saudi Aramco, the government-owned Saudi oil company, is considering an IPO. Why is that? One explanation is that they are looking to get what they can before oil heads lower.

A listing of Saudi Aramco, which could be worth 20 times ExxonMobil (NYSE: XOM), comes as the Saudis are looking to profit while they can – before oil hits $20 a barrel. And the cries for $20 oil are getting louder. Goldman Sachs thinks there’s a 50% chance oil hits $20 given the fact that storage capacity is in rapid decline. Meaning more oil to hit the market with no place to store it.

Morgan Stanley thinks that oil will drop down to $20 given the fact that 2016 could be a strong year for the dollar. They expect a 10% to 25% fall in oil prices if the U.S. dollar gains 5%.

$20 oil brings with it a whole new barrel of problems, including putting pressure on companies with hefty debt loads and making it even harder for them to pay down debts. Then there’s the issue of seemingly solid companies not being able to raise new capital to continue funding operations.