] TotalFinaElf (TOTF.PA) shut its oil production facilities ] in Nigeria's western delta and evacuated workers on ] Saturday because of spiraling violence that has left ] dozens of people dead, company officials said. ] ] A Reuters correspondent saw a helicopter land in the oil ] city of Warri, bringing the first group of workers ] fleeing tribal fighting in oilfields around the Escravos ] export terminal. ] ] The group was accompanied by armed soldiers. ] ] The officials said the helicopters were ferrying ] frightened workers from various TotalFinaElf facilities ] including the Opumami tank farm, the French oil firm's ] most important facility in the Obodo district where it ] produces 7,500 barrels per day of crude. ] ] But there was no immediate official confirmation to ] reports that militants had set fire to part of the tank ] farm. Reuters | Violence in Nigeria Oil Fields |