Born from the vision of achieving self-reliance in oil refining and marketing for the nation, IndianOil has gathered a luminous legacy of more than 100 years of accumulated experiences in all areas of petroleum refining by taking into its fold, the Digboi Refinery commissioned in 1901.

The refining capacity is 70.25 million metric tonnes per annum (MMTPA) (the largest share among refining companies in India), with an approval to further enhance it to 87.9 MMTPA. Currently IndianOil Group accounts for approximately 31% share of the national refining capacity.

The strength of IndianOil springs from its experience of operating the largest number of refineries in India and adapting to a variety of refining processes along the way. The basket of technologies, currently in operation in IndianOil refineries include Atmospheric/Vacuum Distillation; Distillate FCC/Resid FCC; Hydrocracking; Catalytic Reforming, Hydrogen Generation; Delayed Coking; Lube Processing Units; Visbreaking; Merox Treatment; Hydro-Desulphirisation of Kerosene Gasoil streams; Sulphur recovery; Dewaxing, Wax Hydro finishing; Coke Calcining, etc.

The Corporation has commissioned several grassroots refineries and modern process units. Procedures for the commissioning and start-up of individual units and the refinery have been well laid out and enshrined in various customised operating manuals, which are continually updated.

IndianOil refineries have an ambitious growth plan for capacity augmentation, de-bottlenecking, bottom upgradation and quality upgradation.

On the environmental front, all IndianOil refineries fully comply with the statutory requirements. Several Clean Development Mechanism projects have also been initiated. To address concerns about safety at the workplace, a number of steps such as mandatory use of Inherently Fire Retardant Suits (IFR) in Battery area, portable CCTV cameras for monitoring critical jobs, installation of AI enabled CCTV camera, deployment of Smart Helmet, animated video SOPs, deployment of mobile safety training van “SURAKSHA RATH”, etc are being followed.

Digboi Refinery 0.65
Guwahati Refinery 1.20
Barauni Refinery 6.00
Gujarat Refinery 13.70
Haldia Refinery 8.00
Bongaigaon Refinery 2.70
Mathura Refinery 8.00
Panipat Refinery and Petrochemical Complex 15.00
Paradip Refinery 15.00
Total 70.25
CPCL, Chennai 10.50
Group Total (including CPCL) 80.75
SHARE % 31.44%