Reuters: BP, which faces U.S. opposition to drilling for oil in the Gulf of Mexico, named fields there that it will use to help finance its $20 billion fund for victims of the worst oil spill in U.S. history. The oil major on Friday said it would channel revenue from a number of its fields in the Gulf, including Thunder Horse, Atlantis and Mad Dog, into its compensation fund. “It’s quite a clever thing that BP’s done which is, here are our deep water Gulf of Mexico assets, and we’re …