A Pentagon investigation has found evidence that a subsidiary of Halliburton Company overcharged the U.S. government by as much as 61 million dollars for gasoline delivered to Iraq. Halliburton subsidiary, Kellogg, Brown and Root, delivers fuel to Iraq under huge no-bid reconstruction contracts that have a potential value of $15.6 billion. Separately, Pentagon officials said they rejected a proposal submitted by KBR for cafeteria services that was inflated by 67 million dollars. Vice President Dick Cheney headed up Halliburton before he took office.