Included in the list is the Waha Oil Company, once known as the Oasis Group made up of Hess, Marathon and ConocoPhillips, and accounting for about a quarter of Libya’s oil output.
The three US companies pulled their staff out of the country early in the fighting.
“National Oil Corporation is the centrepiece of Libya’s state-owned oil apparatus, and controls a network of companies involved in oil exploration, production and sale,” a statement issued by the Treasury Department’s Office of Foreign Assets Control (OFAC) said.
The
