Workers rest under pipelines at a China National Offshore Oil Corporation's (CNOOC) oil refinery in Huizhou, China's southern Guangdong province in this July 28, 2009 file photo. Picture taken July ... more 
Workers rest under pipelines at a China National Offshore Oil Corporation's (CNOOC) oil refinery in Huizhou, China's southern Guangdong province in this July 28, 2009 file photo. Picture taken July 28, 2009. To match Special Report CNOOC-NEXEN/ REUTERS/Tyrone Siu/Files (CHINA - Tags: BUSINESS ENERGY) less 
1 / 14
Reuters | Photo By STRINGER / Reuters
Sun, Oct 6, 2013 8:11 PM EDT