The other big refinery in that (literal) corner of PA is the Conoco/Phillips(?) plant in Trainer, which is between the Hook and Chester. Before Conoco/Phillips bought it, it was the property of Tosco, and before that BP, and before that Sinclair (which was bought by BP).
foreverfree
Strange what appeals to people. I used to love coming in by train and seeing the refinery. For a DC girl, then living in Philly, the refinery was something you'd never see in DC - some part of real America where people actually did real work for a living instead of the mind games that go on in DC.