By Mia Lamar 
 

International companies trading in New York closed higher Friday, with energy firms among the strongest gainers.

The Bank of New York index of ADRs rose 0.7% to 135.92.

Shares of oil companies rose as crude futures turned higher, essentially erasing Thursday's losses. Norway's Statoil SAS (STO, STL.OS) ended up 1.1% at $24.56, while Spain's Repsol SA (REPYY, REP.MC) gained 0.8% to $21.75.

The European index rose 0.9% to 128.39.

Also in energy news, shares of the U.K.'s BP PLC (BP, BP.LN) rose 2.7% to $42 as the oil major said it plans to buy back $8 billion of its own shares to return its 2003 investment in the joint venture TNK-BP to shareholders.

The Asian index rose 0.5% to 136.17, and the emerging markets index gained 0.3% to 278.43.

Shares of telecoms company China Unicom (Hong Kong) Ltd. (CHU, 0762.HK)--China's second-largest mobile operator by subscribers--rose 2.5% to $13.89 after the comapny reported a 68% on-year jump for its 2012 net profit, beating analyst forecasts.

The Latin American index rose 0.2% to 322.08, and the emerging markets index gained 0.3% to 278.43.

Shares of Brazilian blue-chips Petrobras (PBR, PETR4.BR), the government-run oil company, and Vale (VALE, VALE5.BR), the mining behemoth, closed mixed. Petrobras shares fell 0.2% to $16.85, and Vale shares gained 0.4% to $16.33.

Write to Mia Lamar at mia.lamar@dowjones.com

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