The Mathura Refinery, owned by Indian Oil Corporation, is the sixth oil refinery of IndianOil located in Mathura, Uttar Pradesh, India. The refinery processes low sulphur crude from Bombay High, imported low sulphur crude from Nigeria, and high sulphur crude from the Middle East. Originally designed for a processing capacity of 6.0 million tonnes per year, it was expanded to 7.5 million tonnes in 1989 through debottlenecking and the addition of a DHDS unit, and now processes 8.0 million tonnes annually. The refinery received the "Best of All" Rajiv Gandhi National Quality Award in 1998 and began producing BS VI standard fuels for the Delhi NCR ahead of the April 2020 mandate. On 12 November 2024, a fire and explosion in the Atmospheric Vacuum Unit during start‑up injured eight personnel but was quickly extinguished with minimal impact on overall operations.