Low oil prices have been really good for airlines' bottom lines.
U.S. airlines raked in a profit of $25.6 billion last year, a 241% increase from 2014, according to the Department of Transportation.
11:46 GM reports record 3Q earnings despite slowing US sales13
16:36 AT&T, Time Warner poised to lobby lawmakers, regulators on proposed $85-billion merger24
12:23 Lockheed Martin's quarterly profit handily beats estimates28
11:41 Caterpillar earnings: 85 cents per share, vs expected EPS of 76 cents23