A person using a petrol pump at a petrol station in London.

Oil prices were little changed on Friday and Brent was on track to end the week higher after a strong recovery from Monday's steep slide, underpinned by expectations that supply will remain tight through the year.

The price of oil and other riskier assets tumbled at the start of the week on concern over the impact on the economy and crude demand from surging cases of the COVID-19 Delta variant in the United States, Britain, Japan and elsewhere.