The Petronas Twin Towers (KLCC) stand illuminated at dusk in Kuala Lumpur, Malaysia, on Wednesday, March 28, 2012. Petroliam Nasional Bhd. (Petronas), the Malaysian state-owned oil company, is studying a Canadian acquisition exceeding $5 billion as part of the company’s drive to supply natural gas to Asia. Photographer: Goh Seng Chong/Bloomberg via Getty Images