Reuters | Oil eases as focus returns to oversupply Reuters LONDON Oil prices slipped on Friday as investors cashed in on recent gains and focus shifted again to swelling global inventories that have cushioned impact from a series on unplanned supply outages. Global benchmark Brent crude prices LCOc1 traded ... Oil prices pull back, but stay on track for weekly gains April petroleum deliveries rise 3.6 pct, hit highest April levels in 8 years Oil slides on dollar strength and rising output |