Reuters | Oil gains on pipeline outage tempered by robust US output Reuters Workers from one of Nigeria's largest oil unions went on strike on Monday, sparking concerns over exports from Africa's largest crude producer. The Petroleum and Natural Gas Senior Staff Association of Nigeria, whose members mainly work in the upstream ... Oil Ticks Higher as North Sea Supply Hiccup Enters Second Week Is outlook for oil next year improving? Oil's outlook looks positive, but no crude shock likely in medium term |