Donald Trump's election as US president brings back a champion of the oil industry to the White House, but experts warn that his push for low prices could be at odds with petroleum companies' priorities.

Donald Trump's election as US president brings back a champion of the oil industry to the White House, but experts warn that his push for low prices could be at odds with petroleum companies' priorities.

The picture for the oil market's longer-term outlook under a new Trump presidency is, well, decidedly mixed.