Chennai Petroleum Corporation reported net loss of Rs 63.41 crore in the quarter ended December 2011 as against net profit of Rs 154.94 crore during the previous quarter ended December 2010. Sales rose 33.58% to Rs 11150.85 crore in the quarter ended December 2011 as against Rs 8347.61 crore during the previous quarter ended December 2010.
| Particulars | Quarter Ended |
| | Dec. 2011 | Dec. 2010 | % Var. |
| Sales | 11150.85 | 8347.61 | 34 |
| OPM % | 0.55 | 4.16 | -87 |
| PBDT | -2.86 | 305.37 | PL |
| PBT | -93.86 | 231.90 | PL |
| NP | -63.41 | 154.94 | PL |