Apparently Tulsa is not the only city losing oil company headquarters. A long time OK fixture is leaving OKC. There are a total of 5 fortune five hundred companies headquartered in Oklahoma, now with Kerr-McGee leaving, its down to 4. Fortunately OKC is doing well economically so this will not be too hard a blow. But its still sad to hear of such a familiar name leaving our state. They have done a lot of giving and community support over the years.
http://www.newsok.com/article/1877406/?template=home/main