A tank barge on the Lower Mississippi carrying 30,000 barrels of product is, in insurance terms, a modest asset. The hull value is a fraction of a deepsea tanker. The crew is small. The trade is domestic and familiar. The pollution exposure attached to it is not modest, it is not limited to the value of the barge, and under a set of circumstances that are considerably easier to trigger than most operators assume, it is not limited at all. This article covers how the Oil Pollu