Morocco’s sole refiner Samir, operator of the 200,000 b/d Mohammedia plant, has failed to secure a crude supply deal almost a year after the plant was shuttered because of financial difficulties. A tanker holding 1mn barrels of crude, which was moored off Morocco for almost a year pending a purchase agreement, has set sail for Europe, according to Reuters vessel tracking data.

Samir was forced into administration by a Moroccan court in March. Trading in the company’s shares has...