China National Offshore Oil Corp or CNOOC Group, the parent of listed arm CNOOC Ltd, refined 30.08 million mt (602,400 b/d) of crude last year, up 15.2% from 26.1 million mt in 2011, the company said in its 2012 sustainable development report released late Thursday.

Refined products output rose 14.7% year on year in 2012 to 7.79 million mt while fuel oil production dipped 0.9% to 7.5 million mt. CNOOC Group operates the 12 million mt/year Huizhou refinery in Guangdong province but also controls a number of independent teapot refineries along China's eastern coast, including Shandong and Jiangsu provinces.

CNOOC Group said its total crude imports -- from more than 20 countries -- rose 78% year-on-year last year to 8.22 million mt while condensate imports fell 63% year-on-year to 640,000 mt. Naphtha imports doubled year-on-year to 310,000 mt and fuel oil imports also doubled year-on-year to 2.18 million mt. Total LNG imports were 10.79 million mt last year, down slightly from 10.81 million mt in 2011.

CNOOC Group's imports accounted for 74% of China's total LNG imports last year, down from 88% in 2011, it said. In the upstream, CNOOC Group said its crude output last year totaled 51.86 million mt (1.04 million b/d), up 11.3% year-on-year, with domestic output accounting for 38.57 million mt. CNOOC Group's total gas production dipped 1.8% year on year to 16.4 billion cu m, with domestic volumes at 11.3 billion cu m. The projects include those owned by CNOOC Ltd. Total coalbed methane production last year was 470 million cubic meters, CNOOC Group said, without providing a year-ago figure. Its total crude trading volumes last year rose 63% from 2011 to 35.18 million mt.