Oil edges up on uncertainty over exports through Hormuz

Oil prices ticked higher in early trade on Wednesday (Aug 19), climbing for a fourth straight day on supply uncertainty as investors weighed conflicting messages from Tehran and Washington on whether the Strait of Hormuz is open to ships.Brent crude futures climbed 26 cents, or 0.29 per cent, to US$91.28 (S$117) by 12.04am GMT (8.04am SGT), while US West Texas...