ReutersJim Chanos has a warning for OPEC members: Pump oil now because it might not be worth much in 15 years. The hedge fund manager was on CNBC on Thursday night, and was asked about the oil price. "It's down an awful lot," he said. "Having said that, I think if you were to look out five or 10 years, if I was a member of OPEC I would be pumping as much as I could today while it's worth something because it might not be worth a whole lot by 2030."