Indian Oil Corporation Ltd is India's largest commercial enterprise, accounting for nearly half of
India's petroleum products market share. Incorporated as Indian Oil Company Ltd. on 30th June
1959, it was renamed as Indian Oil Corporation Ltd. on 1st September 1964 following the
merger of Indian Refineries Ltd. with it. IndianOil and its subsidiaries account for nearly half of
India’s petroleum products market share, 35% national refining capacity and 71% downstream
sector pipelines capacity in India.
The IndianOil Group of companies owns and operates 10 of India's 20 refineries with a
combined refining capacity of 80.7 million metric tonnes per annum (MMTPA).
Of the 10 refineries of Indian Oil, Guwahati Refinery is known as the Gangotri of Indian Oil and
is the first public sector refinery of the country. Built with Romanian collaboration, it was
inaugurated by Late Pt. Jawaharlal Nehru, the first Prime Minister of India, on 1st January 1962.
The Refinery produces various products and supplies them to Northeastern India as well as
beyond through the Guwahati-Siliguri Pipeline, spanning 435 KM, which was the first Pipeline of
IndianOil and commissioned in 1964. Most of the products of Guwahati Refinery are evacuated
through pipeline and some quantity also through tank trucks. Quality LPG, Motor Spirit,
Aviation Turbine Fuel, Superior Kerosene Oil, High Speed Diesel, Light Diesel Oil and Raw
Petroleum Coke are the products of this Refinery.
Much before “Make in India” had gained momentum in the nation, Guwahati Refinery had been
successful in installing two new units: the INDMAX and the INDAdeptG, with development of
indigenous technology at IndiaOil’s own R&D Centre. With the installation of the INDMAX and
INDAdeptG units Guwahati Refinery had entered into the era of eco-friendly fuels. The INDMAX
unit enables Guwahati Refinery to upgrade all its residual products to high value distillate
products and make it a zero residue Refinery while the INDAdeptG unit ensures sulfur content
of less than 50 ppmw in the products which can be easily blended in the gasoline pool to meet
the BS-IV as well as BS-VI specs.to meet the BS-IV as well as BS-VI specifications.