Shares in Brazil's OGX Petroleum (OGXPY.PK -13.2%) slump as much as 17%, bringing its one-year...

|By:, SA News Editor

Shares in Brazil's OGX Petroleum (OGXPY.PK -13.2%) slump as much as 17%, bringing its one-year plunge to near 90%, after the company controlled by billionaire Eike Batista had its credit rating cut by S&P. Adding to the poor sentiment is a Thursday report that Brazilian President Dilma Rousseff had refused to aid Batista's companies, which include LLX Logistica, now constructing the multibillion-dollar Acu Port.