Oil prices rose on Monday, with Brent up 6 cents to $67.79 and WTI up 9 cents to $63.75. The rise followed as Ukraine's drone strike cut capacity at a Russian nuclear plant and set ablaze Ust-Luga fuel export terminal. Meanwhile, the Novoshakhtinsk refinery, which exports about 1,00,000 barrels daily, has been burning for four days after a drone hit.