A rising tide may lift all ships, but not all ships are carrying the same cargo. Two companies looking to benefit from crude oil prices that are trending upward are retail and wholesale fuels distributor Sunoco LP (NYSE: SUN) and the much larger Canadian oil sands developer Suncor Energy (NYSE: SU). Both pay dividends yielding over 4% and generate healthy amounts of operating cash flow per share. But there are more differences than similarities for these two stocks.