Bongaigaon Refinery
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Summary Information

  • Ownership: Indian Oil Corporation Limited (IOCL)
  • 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

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)

Ongoing Projects

  • A DHDT project is underway, managed by EIL

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

Relevant Links

  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

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