New Delhi, May 26 -- State-run oil companies on Monday raised petrol prices by Rs.2.61 per litre and diesel prices by Rs.2.71 a litre, the fourth-rate hike in two weeks that cumulatively saw petrol and diesel becoming costlier by Rs.7.35 and Rs.7.53 per litre, respectively since May 15. The latest price revision came at a time when international oil prices fell below $100 a barrel. Benchmark Brent crude fell by 5.69% to $97.65 per barrel in intraday trade on Monday (4pm) from $103.54 a barrel on Friday. Industry executives and sector analysts say the incremental hike cycle is unlikely to end soon as the three state-run oil marketing companies (OMCs) are not only recovering current revenue losses on petrol and diesel, but also recouping their past under-recoveries of auto fuels and cooking gas. Petroleum ministry's joint secretary Sujata Sharma on Monday said the initial daily losses of OMCs were to the tune of Rs.1,000 crore (before first price hike on May 15), which is reduced to "slightly less than Rs.600 crore" after price hikes. Sharma did not disclose per litre under-recoveries on individual fuel products such as petrol and diesel. According to experts, this loss figure includes huge revenue losses on liquefied petroleum gas (LPG or cooking gas) also and not just on the two auto fuels. Under a transparent pricing mechanism of individual petroleum products, current under-recoveries on petrol and diesel would not be more than Rs.10-13 each, they said. After the fourth price hike on Monday, pump prices of petrol in Delhi crossed Rs.100-mark for the first time after four years. Last time petrol crossed Rs.100 in Delhi was May 21, 2022 (at Rs.105.41 per litre). That day, diesel was priced at Rs.96.67. According to available data, an all-time high petrol price was recorded at Rs.110.04 per litre on November 2, 2021, and for diesel, it was Rs.98.42 on November 1, 2021. The latest price increase raised pump prices of petrol at Rs.102.12 per litre and diesel Rs.95.20 a litre in Delhi. Across metros, petrol has risen to Rs.113.51 in Kolkata (up Rs.2.87), Rs.111.21 in Mumbai (up Rs.2.72), and Rs.107.77 in Chennai (up Rs.2.46). Diesel is Rs.95.20 per litre in Delhi, Rs.99.82 in Kolkata, Rs.97.83 in Mumbai, and Rs.99.55 in Chennai, with increases of Rs.2.71 per litre, Rs.2.80, Rs 2.81, and Rs.2.57 respectively....