Warren Buffet approachto investment is very simple: when you invest in a company you don't buy the share price you buy the potential for the company revenue and wait for a long period of time to enjoy the success.
Canadian Oil Sands is a true example of a great company with a great business and very high cash flow, low long term debt. I don't look at the production update on a daily basis nor on the oil price, just observe the world economy performance, sit back enjoy the high dividend of 7% and wait for the high appreciation. In fact for anyone who is planning to retire this is a good component for a good dividend income.
COS should be trading much higher then $37.