United States Steel Corp $119,290 Marathon Oil Corp $37,973 PNC Financial Services Group Inc $1,106,331 PPG Industries Inc $273,257 Marathon Petroleum Corp $14,540,779 United States Steel Corp $119,290 Marathon Oil Corp $37,973 PNC Financial Services Group Inc $1,106,331 PPG Industries Inc $273,257 Marathon Petroleum Corp $14,540,779