Petrol prices in Singapore returned to their recent record high on Thursday (April 2) as Caltex, Shell and SPC became the first fuel companies here to raise petrol prices again.Both Caltex and SPC raised petrol prices by 5 cents — across their respective petrol offerings — while increasing their diesel price by 10 cents and 20 cents respectively. Meanwhile, Shell raised its posted prices for petrol by 6 cents. It also raised diesel price by another 20 cents.Their moves continued the recent trend of diesel price hikes, but also reversed a respite for petrol customers — lasting a grand total of nine days. In comparison, pump prices have been on the rise since March 4. Read more