By Tomi Kilgore and Claudia Assis
Air carrier's stock drops despite upbeat quarterly results
Delta's profit dropped as the air carrier absorbed the highest quarterly fuel expense in its history.
Worries about jet-fuel prices clouded Delta Air Lines' outlook on Friday.
Delta's stock (DAL) dropped after the air carrier reported second-quarter earnings that beat expectations and revived its full-year guidance, which had been absent from the previous report.












