Mae llawer wedi nodi bod cost olew wedi mwy na dyblu dros y ddau fis diwethaf. Mewn rhai ardaloedd, gall cyflenwad o 500 litr, sydd fel arfer yn costio tua £340, gostio mwy na £750.
Many have reported the cost of heating oil has more than doubled over the past two months. A delivery of 500 litres normally costing approximately £340 can in some regions now cost upwards of £750.