Telegraph.co.uk | Oil price loses another dollar a barrel in the wake of Saudi uncertainty Telegraph.co.uk Oil lost about 50 percent of its value last year as the Opec members, of which Saudi Arabia is the largest producer, refused to pare back production to offset greater supplies from the United States. Opec stressed in November that it planned to keep ... Are low oil prices here to stay? Oil prices fall on market relief Oil prices fall on market relief over Saudi policy |