Google - OPP Summary
Reuters - Stock Overview of OPP
MorningStar - Info on OPP
PEG - PE/EPS Growth - 1=fare value (lower cheaper).
ROE - Net Income/Shareholder's Equity - Return on equity (profitability to book value).
ROCE - (EBIT)/Capital Employed - Return on capital employed (efficiency of business operations).
ROIC - (Net Income-Divs)/Total Capital - Return on invested capital (efficiency of total capital employed).