Caroline: How much notice do you have to give? http://www.lamarmotte-verbier.com/fr/bons-cadeaux buy cheap pantoprazole Pessimism now hangs over the oil-sands sector. Hugh Hopewell, senior analyst at energy consultancy Wood Mackenzie, says the volatility of Canadian oil prices should remain for the rest of the decade. He saw a 40 percent discount to WTI as the long-term price assumption to evaluate bitumen projects.