Libya's National Oil Co. says it can't export oil from four terminals TRIPOLI, Libya, Aug. 21 (UPI) -- Libyan state-run National Oil Corp. said it was no longer able to meet its contractual obligations because of the closure of four export terminals. This makes the Mediterranean market tight because of the absence of "at least" 500,000 barrels of oil per day, the 12-member cartel said. Bloomberg News reported Tuesday it was sent documents from Libya's state-run National Oil Corp. stating force majeure was declared on exports from the El Brega, Es Sider, Ras Lanuf and Zueitina ports. "The above mentioned sea port terminals are closed due to Oil Security Guards who are on strike at these locations since the end of July 2013, which resulted total shutdown for these facilities and cease of all exports," the document said. Force majeure means NOC is freed of its contractual obligations because of circumstance beyond its control.