Oil prices retreated from their highest levels in more than a month on Monday as investors took profits after several days of sharp gains and oil markets remained over-supplied despite talk of stronger demand next year.
Oil has been on a roller-coaster ride over the last few weeks, recovering from six-year lows. North Sea Brent crude dropped to almost $42 a barrel in August, from a peak above $115 in June 2014, but then rallied back to an intraday high of $54.05 on Friday.
