(CVE, IMO, SU, COSWF) CRWENewswire Oil Stocks to Watch Oil is the lifeblood of the U.S. economy, and, to a lesser extent, of the global economy. Oil is the world’s most vital commodity. With oil producers including Cenovus Energy - symbol CVE - Imperial Oil - symbol IMO -, Suncor Energy - symbol SU - and Canadian Oil Sands Limited - symbol COSWF -, Canada is the largest foreign supplier of energy to the United States
