Week’s roundup of quarterly reports includes American Airlines, the city’s second-biggest carrier, and Union Pacific, the biggest of the major rail operators.

Union Pacific on Thursday posted a better-than-expected profit for the fourth quarter helped by improving volumes and robust pricing, which was partially offset by lower fuel surcharge and less profitable cargo mix.

Union Pacific reported 7% more fourth quarter profit as it managed to deliver more shipments with fewer employees and continued to make the railroad more efficient