Reuters | Oil extends rally after best week since 2011 Reuters The number of rigs drilling for oil in the United States fell by 83 this week to 1,140 - the lowest since December 2011 - a survey showed on Friday, a clear sign of the pressure that tumbling crude prices have put on oil producers. Stronger-than ... Strike closes Hariga oil port, Libya's last onshore export terminal Libyan eastern oil port shut down due to security guard strike |