These two never agree. Usually not even close. Which reminds me of an older MSM tactic of reporting only the most favorable reading from week to week. I haven't seen this slight-of-hand recently. Usually corresponds to the changing of the guard at the CNBC oil pit.

That said, the rolling average correlation over time is 4 nines.

looking at the weeklys in isolation is for mugs. Rolling 4 week averages have a lot more useful info.