Bongaigaon Refinery

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Summary Information

  • Ownership: Indian Oil Company
  • Website:
  • Location:
  • Capacity: 2.35 million tons/annum & 47,000 bbl/day
  • Nelson Complexity:

Refining Units

  • There are two Crude Distillation units with a total crude processing capacity of 2.35 MMTPA.
  • There are two DCUs, each having capacity to convert 500,000 MTPA of Reduced Crude Oil from CDU
  • Diesel desulphurisation

Terminal Capacity

  • Crude Oil:
  • Refined Products:

Crude Supply

  • The Refinery is processing crude oil available from the oil fields of ONGC and OIL located in the North-East India and Ravva crude oil from the Krishna-Godavari basin off the coast of Andhra Pradesh.
  • The North-East crude oil is received through a 750 km long pipeline of OIL originating at Duliajan. Ravva crude oil is shipped to Haldia port from where it is pumped to Barauni through Haldia-Barauni Crude Pipeline (HBCPL) of Indian Oil.
  • From Barauni, it is pumped to Bongaigaon through OIL's crude pipeline.

Products Produced

  • Liquefied Petroleum Gas (LPG)
  • Motor Spirit (MS)
  • Straight Run Naphtha (SRN)
  • Superior Kerosene Oil (SKO)
  • Aviation Turbine Fuel (ATF)
  • High Speed Diesel (HSD)
  • Light Diesel Oil (LDO)
  • Low Sulphur Heavy Stock (LSHS)


Other Information

  • Formerly belonged to BRPL, which has been merged with Indian Oil Company.


  • 1979 - The refinery was commissioned with a capacity of 1.0 million tons per annum
  • 1981 - Kerosene treating and Delayed coking units commissioned
  • 1986 - Capacity increased to 1.35 million tons through debottlenecking
  • 1995 - Capacity increased to 2.35 million tons
  • 1995 - LPG Recovery Unit commissioned
  • 1998 - Instrument Modernisation and Advanced Control & LPG Bottling Plant projects completed
  • 2011 - DHDT Project completed


  1. Refinery Webpage
  2. Page from BRPL Website
  3. Bongaigaon Refinery Case Study
  4. DHDT Heater Completed
  5. Hydrogen Reformer Completed
  6. Engineers India Refining References
  7. L&T bags Rs. 329 crore hi-tech Equipment Orders