Email this story to a friend: Oil prices had already touched six-month highs at the start of the week thanks to buoyant stock markets Friend's Email: Insert from my Yahoo! Address Book Separate multiple addresses with commas. Maximum 200 characters. Your Full Name: Your Email Address: Copy Yourself These email addresses will be used to email the story on your behalf and will not be collected or used by Yahoo! for any marketing purposes. Add a personal message: