Texas-based Halliburton is the world's second-largest oil services company and the U.S. military's biggest contractor in Iraq. The logistical support is performed by Halliburton engineering and construction unit Kellogg Brown & Root. Last year, the Army paid the company more than $7 billion under the contract, the Post said.
Army officials defended the company's performance but said Pentagon leaders decided multiple contractors would give them better prices, more accountability and greater protection if a one contractor fails to perform, the newspaper said.