In line with rising oil prices in the international market, the Oil and Gas Regulatory Authority (OGRA) has increased petroleum prices between Rs 4.37 a litre and Rs 5.61 for December. The new prices come into effect from Tuesday (today). The increase in the prices of petrol, kerosene oil, light diesel oil and HOBC was announced in an OGRA notification, while oil-marketing companies released the new price of high speed diesel (HSD). The price of high-speed diesel has been increased by Rs 5.61 to Rs 70.40 a litre.