Creditors of Brazilian tycoon Eike Batista's Oleo e Gas Participacoes SA approved a restructuring plan for the oil company that could lead to a quick resolution of the largest bankruptcy in Latin America's history, lawyers said on Tuesday. The plan was approved by creditors holding 90 percent of the Rio de Janeiro-based company's nearly 12 billion reais ($5 billion) of unpaid obligations. If a judge approves, creditors will swap debts for about 90 percent of Oleo e Gas stock, said Ricardo Knoepfelmacher of Angra Partners, the consultancy that handled talks with creditors. The judge's approval is expected within days, he said. Creditors include Newport Beach…