Most fuel companies in Singapore have held fuel prices unchanged for the past week — through a two-week ceasefire and later a US military blockade on Iran which started on Monday (April 13) — except for Shell which raised petrol prices by 7 cents on April 13.Shell's upward price calibration that day also meant it reversed its earlier drop — by 4 cents — on April 9.In a price board update published on Wednesday at 5pm, Shell announced that it has dropped prices across its petrol offerings by 3 cents each, but kept diesel price unchanged. Read more