Oil slides from nine-week highs as market looks to OPEC

Oil prices edged lower on Monday, sliding away from nine-week highs, as worries lingered over high production from OPEC and the United States. U.S. crude futures were down 55 cents, or 1.11 percent, at $49.03 per barrel, but up from the day's low of $48.78 a barrel. Doubts have since swirled around the effectiveness of the cuts, as OPEC output hit a 2017 high in July and its exports hit a record.
