Irish Times | Tullow swings to $518.8m loss on sliding oil price Financial Times The Africa-focused oil explorer and producer made a pre-tax loss of $518.8m in the six months ending in June, compared to a $24.1m profit a year earlier on revenue of $788m, up 46 per cent. Its results were dragged down by a net $641.7m impairment of ... Tullow Oil reports operating loss of $309m Tullow Oil Remains in Red as Weak Oil Prices Drag Down Asset Values |