Economy of the United States Corporation, Apple Inc., Verizon, JPMorgan Chase, and Cardinal Health. In 2013, eight of the world's ten largest companies by market capitalization were American: Apple Inc., ExxonMobil, Berkshire Hathaway, Walmart, General Electric, Microsoft, IBM, and Chevron Corporation. According to Fortune Global 500 2011, the ten largest U.S. employers were Walmart, U.S. Postal Service, IBM, UPS, McDonald's, Target Corporation, Kroger, The Home Depot, General Electric, and Sears Holdings. Apple, Google, IBM, McDonald's, and Microsoft are the world's five most valuable brands in an index published by Millward Brown. A 2012 Deloitte report published in "STORES" magazine indicated that of the world's top
Canadian petroleum companies resulted in a shift in focus over to patent producing research and development. Cenovus Energy has used its patents as a tool to negotiate deals. Profiled and ranked is every Canadian oil and gas company with a market cap ranking top 500 worldwide and the eight largest by revenue (Nexen made Forbes list but not the top 500 companies according to market capitalization but it had the highest revenue among all other petroleum companies according to this list, addax petroleum became part of Sinopec). Eight of the ten most profitable companies of the oil and gas sector operating in Canada