In company news, American depository shares of Brazilian energy giant Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR) were moderately higher shortly ahead of Wednesday’s closing bell, joining in a rally for shares of several Brazilian companies after new poll results indicate a tightening race for the country’s president. Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR) stock performance was 2.52% in last session and finished the day at $15.87. Traded volume was 16.54million shares in the last session and the average volume of the stock remained 24.32million shares. The beta of the stock remained 1.73. Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR) insider ownership is %.

Alcoa Inc (NYSE:AA) will pull out of Jamaica within two years and sell its mining interests to Noble Group Ltd , Alcoa and the Jamaican government said on Friday. Alcoa Minerals of Jamaica (AMJ) and the Jamaican government are joint venture partners in Jamalco, a bauxite mining and alumina refining operation. Alcoa Inc (NYSE:AA) rose 3.64 percent to $14.52 Friday on volume of 14.42million shares. The intra-day range of the stock was $14.07 to $14.56. Alcoa Inc (NYSE:AA) has a market capitalization of $17.02billion.

Vale SA (ADR) (NYSE:VALE), Brazil’s biggest mining company, said that 400 members of the Xikrin tribe have been blocking since Thursday morning the main entrance to its Onca Puma nickel mine in Para state. It said the Indians are seeking to modify an agreement to mitigate the mine’s impact on its community’s development. Vale SA (ADR) (NYSE:VALE)’s stock on June 13, 2014 reported a increase of 0.79% to the closing price of $12.81. Its fifty two weeks range is $12.29 -$17.14. The total market capitalization recorded $66.01billion. The overall volume in the last trading session was 13.88million shares. In its share capital, VALE has 5.18billion outstanding shares.

Yamana Gold Inc. (USA) (NYSE:AUY) rose Thursday after the court approved the company’s acquisition of Osisko Mining, which it announced in April. On Friday, shares of Yamana Gold Inc. (USA) (NYSE:AUY) advanced 2.48% to close the day at $8.26. Company return on investment (ROI) is -5.60% and its monthly performance is recorded as 9.40%.  Yamana Gold Inc. (USA) (NYSE:AUY) quarterly revenue growth is -21.48%.

A Walter Energy, Inc. (NYSE:WLT) mine rescue team placed first in the Alabama Coal Association Mine Rescue Competition held at Bevill State Community College on May 20-22, 2014.  Walter Energy, Inc. (NYSE:WLT) stock performance was 9.66% in last session and finished the day at $5.22. Walter Energy, Inc. (NYSE:WLT) traded volume was 9.56million shares in the last session and the average volume of the stock remained 5.59million shares. The beta of the stock remained 2.37.  Walter Energy, Inc. (NYSE:WLT) insider ownership is 1.20%.