how to exploit oil's current low

If you've been eyeing a new gas-guzzling SUV as your next vehicle, you may want to reconsider that Prius once more.

That's because today's low gas prices won't be around forever and oil prices aren't about to "tank" any time soon.

In fact, the oil price crash has created a state of "contango," a market anomaly that savvy investors can exploit. It's presenting a rare market opportunity to profit that only comes around once every few years.