Halliburton Company is an American multinational corporation and the world's second largest oil service company which is responsible for most of the world's largest fracking operations. It employs approximately 55,000 people through its hundreds of subsidiaries, affiliates, branches, brands, and divisions in more than 70 countries. The company, though incorporated in the United States, has dual headquarters located in Houston and in Dubai. Halliburton's major business segment is the Energy Services Group. KBR, a public company and former Halliburton subsidiary, is a major construction company of refineries, oil fields, pipelines, and chemical plants. Halliburton announced on April 5, 2007, that it had sold the division and severed its corporate relationship with KBR, which had been its contracting, engineering and construction unit as a part of the company. The company has been criticized for its involvement in numerous controversies, including its involvement with Dick Cheney – as U.S. Wikipedia