Search crews sifting through the wreckage of the Air India jetliner that crashed last week retrieved the second black box, as they seek to gain more evidence to understand what caused the accident that killed all but one of the 242 people on board.

Investigators in India are studying the black boxes of a Boeing 787 Dreamliner after recovering them from the aircraft wreckage to ascertain the cause of last week’s plane crash that left at least 27...

Stricter environmental regulations and slower global economic growth will soften marine fuel demand in the coming years, the International Energy Agency said in its annual report on Tuesday.