Any number of things can impact the price of specific types of crude oil at various locations — supply interruptions, takeaway constraints and refinery outages, to name just a few. Every so often, the stars align and just about all those factors narrow the differential between, say, Western Canadian Select (WCS) and West Texas Intermediate (WTI) at the U.S. Gulf Coast to near-record levels. Well, that’s happening now, for the first time in five years. In today’s RBN blog, we discuss the shockingly small WCS/WTI differential and what’s driving it.