WASHINGTON (CNN) -- Vermont Sen. Patrick Leahy, the Democratic chairman of the Senate Judiciary Committee, sharply criticized on Monday Halliburton's decision to move its corporate headquarters from Houston to Dubai, calling it "corporate greed at it's worst."

"This is an insult to the U.S. soldiers and taxpayers who paid the tab for their no-bid contracts and endured their overcharges for all these years," he said in a statement "At the same time they'll be avoiding U.S. taxes, I'm sure they won't stop insisting on taking their profits in cold hard U.S. cash."

But a spokeswoman for Halliburton told CNN the company is not avoiding paying U.S. taxes.

"Halliburton is, and will remain, a U.S. corporation, incorporated in Delaware, with its principal executive office in Houston, Texas," Melissa Norcross said. "As such, we anticipate absolutely no tax benefits from this decision."