Chevron reports first quarter 2011 results

US energy company Chevron has reported earnings of $6.2bn (£3.1bn) for the first quarter 2011, compared with $4.6bn in the first quarter 2010.

Sales and other operating revenues in the first quarter 2011 were $58bn, up from $47bn in the same period a year ago, mainly due to higher prices for crude oil and refined products.