Oil prices had another rough year, falling by about one-third, having entered 2015 near $55 and looking to finish below $40. So what's ahead for the battered commodity?
Last year, 2014, was not much better, marking the initial fall from the triple-digit stratosphere that seems so far away. Fast forward to 2015, and the commodity has struggled twice to form a bottom, even though many investors continue to believe that the worst may be over.
For those looking to get in the space, here's the best investment approach.