Profitability in the Federal Express segment — now FedEx's primary operation — compressed year over year, with the operating margin retreating to 7.7% from 8.4%, pressured by higher wage and benefits expenses, rising purchased transportation costs, and increased fuel spending. The company's fuel bill reached $1.43 billion for the quarter, nearly double the $864 million recorded a year earlier — a 66% increase. The company also noted that the grounding of its MD-11 cargo jet fleet and global trade policy changes were headwinds during the period.