Stock exchanges have fined oil refining and fuel marketing giant Indian Oil Corporation (IOC), explorers Oil and Natural Gas Corporation (ONGC) and Oil India Ltd (OIL), gas utility GAIL, and refiners Hindustan Petroleum Corporation Ltd (HPCL) and Mangalore Refinery and Petrochemicals Ltd (MRPL) a cumulative Rs 32.5 lakh, stock exchange filings showed.
