BRIEF: For the fiscal year ended 31 December 2011, Korea National Oil Corp revenues increased 25% to W8.948T. Net loss totaled W128.31B vs. income of W8.79B. Revenues reflect an increase in demand for the Company's products and services due to favorable market conditions. Net loss reflects Other Net Income increase from W52.39B (income) to W195.06B (expense), Finance Expenses increase of 41% to W711.31B (expense).