The decoupling very well may happen. But Since Feb 08, the PPS of DPDW and the price of oil has nearly mirrored each other. that seems like a pretty nice trend to bet on in my book. And as I said earlier, at these prices, we should be backing up the truck for shares of DPDW.
Oil has strong support @ $85 so I see a reversal soon for oil. If the trend holds true like it has since Feb 08, we should expect to see a rise in DPDW as well. The risk/reward here is in our favor now.
And as an investor (not a trader), this is exactly what we want to see. I'll stay with the trend until the charts break away from it. It's at that time that we may need to adjust our thinking.
Time to buy is all I'm saying.
Boca_Bobby