Don't look at history to value your stock Suncor is trading at 6x earnings right now. In the past it trades above 20x earnings.
Will History repeat itself with the oil stocks, I don't thinks so.
With Reitmans - one does not want to look to far out into the future to value this stock.
In 2010 (go to the website and download the annual statements), Reitmans had 1 B in sales, book value was 7.90 per share, 51M was paid out in dividend, they had over 900 stores, net earnings (after paying tax) is 1.30 per share.
In 2023, Reitman has 800K in sales, book value is 4.80, 0 in dividend, 400 stores, net earnings (no taxes paid due to past losses) is 1.09 (est).
A reasonable valuation for this stock in the near future is closer to $6-$12 range based on (Cash (68M) + property (150M) + cash flow X 5). If you are more optimistic, use a higher multiple.