Goldman Sachs is bullish on Suncor stock.
BMO Captial Markets downgrades Occidental to Market Perform, citing no further upside to the valuation.
Koch Oil Sands Operating cites economic and regulatory uncertainties as the reason it wants out of its Muskwa oil sands project.
Even the Oracle of Omaha can change his mind: Warren Buffett's conglomerate has moved back into airline stocks, with stakes in American, United Continental and Delta. Plus, what Cramer thinks.