Oil prices today rose marginally but remained under pressure from rising COVID-19 cases in Europe and a potential release of Japanese oil reserves, raising concerns about both oversupply and weak demand.<br />''<br />''In intra-day trade, Brent crude was trading around 79 dollars per barrel while WTI crude prices were at 75 dollars and 70 cents per barrel.<br />''<br />''<br />''<br />