Business DayConcern about disruptions supports oilBusiness DaySingapore — Oil prices rose on Tuesday as risks of supply disruptions from Venezuela, Libya, Nigeria and Iran triggered the expectation of a tightening market. International Brent crude oil futu …

Business DayOil slips as concern about disruptions easeBusiness DaySeoul — Oil prices fell on Monday as concern about supply disruptions eased and Libyan ports resumed export activities, while traders eyed potential supply increases by Russia and other oil …