State-owned oil companies warned of disruptions in fuel supplies if they are not allowed to raise petrol price or compensated for the 48 crore rupees per day loss the companies incur on selling fuel below cost.The situation is very critical. We are losing 7.67 rupees per litre on petrol and after adding 20 per cent sales tax. Indian Oil Corp (IOC) Chairman R S Butola told reporters that 93 per cent of cost of production is on account of crude oil, which the companies have to import.IOC and other oil PSUs, Bharat Petroleum and Hindustan Petroleum are losing 48 crore rupees per day on sale of petrol, whose pricing was decontrolled by the government in June 2010.But the government hasn't allowed the oil companies to hike petrol price.This is a peculiar scenario where the central government earns 14.78 rupees on every litre of petrol sold (in excise duty) and states governments get anything between 10 to 20 rupees per litre. Mr. Butola said the oil companies are not allowed to earn anything.