Libya: Italian oil firm Eni resumes Abu Attifel pumping
Eni, which was the biggest foreign oil producer in Libya before Col Gaddafi was overthrown, said it planned to reopen other fields in the coming days.
Other firms, including French company Total, have also restarted operations.
Meanwhile, anti-Gaddafi forces are closing in on his hometown of Sirte, one of his few remaining strongholds.
The soldiers, loyal to the National Transitional Council (NTC), launched a surprise attack on the city on the weekend.
The BBC's Alastair Leithead, near Sirte, says the troops have the city surrounded and are preparing to enter it with significant force.
Gaddafi loyalists have been fiercely protecting the city from NTC advances in recent weeks.
Eni said in a statement it has restarted production at 15 wells in the Abu Attifel oil field, about 300km (190 miles) south of Benghazi.
See http://www.bbc.co.uk/ for full story.