World's largest gold producer posts first quarter loss...........Barrick Gold Corp. reported its first quarterly loss in more than five years as the company incurred $557 million in costs to exit sales contracts at below-market prices. The first-quarter net loss was $159 million, or 18 cents a share, compared with net income of $224 million (29 cents a share) a year earlier, Toronto-based Barrick said today in a statement. Excluding the cost to exit the contracts, profit was $398 million (45 cent a share) topping analysts' estimates.