Transport Minister Santi Prompat and defence permanent secretary Gen Winai Phattiyakul (not in picture) preside at the opening of a rest area in PTT petrol station near Bang Na-Trat Expressway (Chalerm Mahanakorn) in Bangkok's Phra Khanong district. Published caption : Restaurants and convenience stores have become a key non-oil segment of PTT. The statebacked energy firm is moving aggressively into the property management business.KOSOL NAKACHOL