For those interested in buying Oklahoma real estate it is important to note that nearly sixty per cent of the state’s population resides in the Tulsa and Oklahoma City metropolitan areas. Oklahoma has one of the fastest growing economies in the country with an economic foundation in aviation, biotechnology, telecommunications, energy and food processing. Fortune 500 companies headquartered in Oklahoma include ONEOK, Williams, Devon Energy, Chesapeake Energy, OGE Energy and Dollar Thrifty Automotive. Agriculture is also a big part of Oklahoma’s economy with products such as wheat, cattle, dairy products, pork, cotton and poultry. The largest employers are in the areas of government, transportation and utilities. Tourism is also a significant source of revenue for Oklahoma’s economy.