BAGHDAD, Iraq - Iraqi officials declared Tuesday that the interim government has assumed full control of the country's oil industry ahead of the June 30 handover of sovereignty from the U.S.-led occupation administration.

"Today the most important natural resource has been returned to Iraqis to serve all Iraqis," Prime Minister Iyad Allawi said. "I'm pleased to announce that full sovereignty and full control on oil industry has been handed over to the oil ministry today and to the new Iraqi government as of today."

The announcement came as Allawi and Oil Minister Thamir Ghadbhan toured the al-Doura oil refinery in southern Baghdad.

After meeting and shaking hands with the refinery workers, the two ministers thanked oil sector workers.

"We are totally now in control, there are no more advisers," Ghadbhan said. "We are running the show, the oil policies will be implemented 100 percent by Iraqis."