PETROL Morrisons, Chesterfield - 112.9 Morrisons, Staveley - 112.9 Tesco Extra, Chesterfield - 113.9 Sainsburys, Chesterfield - 113.9 Brimington Service Station, Brimington - 113.9 DIESEL Morrisons, Chesterfield - 113.9 Morrisons, Staveley - 113.9 Red House Service Station, Heath - 113.9 Sainsburys, Chesterfield - 114.7 Tesco Extra, Chesterfield - 114.9 Source: www.petrolprices.com