The Justice Department investigation relates to a subsidiary called Halliburton Products & Services Ltd., an oil field services company incorporated in the Cayman Islands. In a 2003 report, the company said the subsidiary "performs between $30 [million] and $40 million annually in oilfield service work in Iran." http://www.washingtonpost.com/wp-dyn/articles/A110-2004Jul20.html
It's the logic of the rich and powerful... do what I tell you to do... but I can do anything because I am better and more powerful than you. You know, just like how we tell others not to develop nuclear weapons, but we are developing new ones... how we want others to honor the geneva convention, but we do not... etc.