Crude oil futures ended lower on Tuesday with traders weighing demand prospects and looking ahead to weekly inventory data. Oil prices also weak after the United States issued travel warnings to Spain and Portugal due to rising Covid-19 cases. However, Signs of tight supply and improving vaccination rates offset worries about the spread of the delta variant of the coronavirus and supported crude prices a bit early on in the day.
Crude oil futures for September fell $0.26 or 0.4 percent to settle $71.65 barrel on the New York Mercantile Exchange. September Brent crude declined $0.33 or 0.44 percent to settle at $73.37 a barrel on London's Intercontinental Exchange.