The crude oil in the tank cars came from the Bakken formation. Several accidents since then have raised concerns about the explosive nature of Bakken crude oil.

油罐车中的原油来自巴肯地层。此后发生的几起事故引发了人们对巴肯原油爆炸性的担忧。

They established a marketing system which enabled them to bring their oil directly from their own refineries to the retailer, all in their own tank cars and tank wagons.

他们建立了一个营销系统，使他们能够将石油从自己的炼油厂直接运到零售商处，所有这些都使用他们自己的油罐车和油罐车。