Reuters: BP Plc was seeking $7 billion in loans from banks on Friday, trying to raise more cash as it struggled to plug its gushing Gulf of Mexico well and contain the worst oil spill in U.S. history. Banking sources told Reuters the British energy giant was seeking $1 billion in loans from each of seven banks. Earlier this week, BP bowed to President Barack Obama’s demand to set up a $20 billion fund to handle damage claims. As the crisis entered its 60th day, the U.S. Coast Guard …