Oil prices fell on Tuesday. Brent crude eased nearly 0.2%, to $41.93 a barrel. U.S. WTI crude 1.9%, to $39.01 per barrel. Prices slipped amid concerns about fuel demand and rising COVID-19 cases. Weighing on the market is the upcoming maintenance seasons for U.S. refineries, which could cut crude demand by 1.5 million to 2 million barrels per day