Dense, or heavy, oil is more difficult to refine, which is why it fetches lower prices. The costs to purchase and refine a barrel of oil are built into the price you pay at the pump. Oil is usually ...

She used the pay-at-the-pump system which allows motorists to buy petrol without having to go into a kiosk. "All I wanted to do was top up my almost full tank, because having two children ...

Chicagoans who are driving out of town for Thanksgiving are noticing higher prices at the gas pump after recent issues at the ...