The Math can work...

The refinery next to the oilfied behind my house is railing in Bakken crude rather than buying from their neighbor Chevron. They claim transportation cost is in the single digits for the railed in crude.
I bet it makes a difference if the cars then can be filled with distillates and sent back...

The biggest question-mark re: Trainer is the Ruggles departure...

Cheers
George