Oil prices edge higher as storms bear down on Gulf of Mexico

Crude oil prices rose on Monday as storms closed in on the Gulf of Mexico, shutting more than half its oil production, and on coronavirus optimism after U.S. regulators approved the use of blood plasma from recovered patients as a treatment option.On Sunday, Hurricane Marco and Tropical Storm Laura tore through the Caribbean and Gulf of Mexico, forcing energy companies to pull workers from offshore platforms and shut down oil output.Producers had shut 58% of the Gulf's offshore oil output and 45