Conway Vs. Mont Belvieu Propane Differential Going the Wrong Way?

It is winter in propane country, and even though it has been a relatively mild one so far, propane prices have been remarkably weak.  For one thing, the ratio of Mont Belvieu propane to WTI crude oil has been in the dumper all year, averaging a paltry 35% since March.  Last year for the same peri