How to buy oil on the cheap, page-24

The good thing about an oil index position like this is that it's never going to go belly up like stocks do sometimes. It's perfect for doing the market maker type trade where you build an inventory, let some go on up days, and load up again on down days. But the main thing is that the probability of the price of WTI grade oil being below $27 long run is pretty low. The other thing is that a 97% correlation to spot oil is pretty standard for a futures contract as the basis can flip around at times. What i would like to know is the correlation to the futures index they track. Also, why isn't the price on this updating on HC?​