Indian Oil Corporation (IOCL) is India's largest petroleum company, founded in 1964 with 78.92% government ownership. It operates several oil refineries across India and is the country's number one fuel retailer. IOCL also has joint ventures for biofuels and synthetic rubber production. Its key products include fuels like gasoline, diesel, jet fuel, and liquefied petroleum gas cylinders. As India's most valuable oil brand, IOCL continues to expand its refining and fuel distribution infrastructure nationwide.