Digboi Refinery: A Remarkable Legacy as India’s Oldest Oil Refinery

An illuminated aerial view of Digboi Refinery at night, showcasing industrial pipelines, storage tanks, and processing units with the sea in the background.
Digboi Refinery – The birthplace of India’s oil industry! Established in 1901, this historic refinery continues to drive progress.
Digboi Refinery, India’s oldest refinery, continues to fuel the nation with cutting-edge technology and rich heritage in the oil industry.

Introduction

Digboi Refinery, located in Assam’s Tinsukia district, holds the distinction of being Asia’s oldest operational oil refinery. Established in 1901, this historic refinery has been at the heart of India’s petroleum industry for over a century. It remains a remarkable example of how early industrial advancements shaped the country’s energy sector.

The Accidental Discovery of Oil

The origins of India’s oil industry trace back to 1867, when crude oil was accidentally discovered by British engineers working on a railway project in Assam. While laying tracks near Digboi, they noticed oil traces, sparking a transformative journey. This unexpected find led to the establishment of the country’s first refinery in 1901, marking the beginning of India’s petroleum era.

Birth of India’s Oil Industry

Digboi became the birthplace of India’s oil industry. The Assam Oil Company was formed to oversee production and refining operations, making it the first structured oil refinery in the country. The region soon developed into a well-planned township, with colonial-style bungalows, clubs, and golf courses for British professionals working in the industry.

Technological Advancements & Modernization

Despite being over a century old, Digboi Refinery has evolved with time. Several modernization initiatives have enhanced its refining capacity and efficiency:

  • Initial Refining Capacity (1901): 0.5 MMTPA (Million Metric Tonnes Per Annum).
  • Upgraded Capacity (1996): Increased to 0.65 MMTPA.
  • New Delayed Coking Unit (1999): Added to optimize processing.
  • Solvent Dewaxing Unit (2003): Installed to maximize the production of microcrystalline wax.
  • Hydrotreater Unit (2003): Implemented to improve diesel quality.

These technological upgrades have enabled the refinery to meet modern standards while maintaining its historical significance.

Current Operations & Product Supply

Today, Digboi Refinery is managed by Indian Oil Corporation Ltd. (IOC) and continues to be a key player in India’s petroleum sector. It produces a range of petroleum products, including:

  • Fuels (Petrol, Diesel, Kerosene)
  • Microcrystalline Wax (Used in cosmetics, pharmaceuticals, and packaging)
  • Bitumen (For road construction and industrial use)
  • Other Specialty Petroleum Products

These products primarily cater to the northeastern states of India, ensuring regional energy security and economic development.

The Legacy of Digboi Refinery

Digboi Refinery is not just an industrial site; it is a living symbol of India’s oil exploration history. With continuous advancements and a commitment to environmental and safety standards (ISO-9001, ISO-14001, and OHSAS certifications), this refinery continues to thrive in a rapidly changing energy landscape.

Conclusion

From an accidental oil discovery in the jungles of Assam to becoming a pioneering oil refinery, Digboi has stood the test of time. It remains a testament to India’s industrial growth, playing a vital role in the country’s energy sector for over 100 years. Its remarkable journey reflects both the past and the future of petroleum refining in India.

FAQ’s:

What is the significance of Digboi Refinery in India’s oil industry?

Digboi Refinery, established in 1901, is India’s oldest operating refinery and is often referred to as the “Gangotri of the Indian Hydrocarbon sector.”

Where is Digboi Refinery located?

Digboi Refinery is situated in the town of Digboi, in the Tinsukia district of Assam, India.

Which company currently operates Digboi Refinery?

Digboi Refinery is operated by the Indian Oil Corporation Limited (IOCL), specifically under its Assam Oil Division.

What types of crude oil does Digboi Refinery process?

The refinery processes high wax content crude oil and is known for producing high-quality paraffin wax, among other petroleum products.

How has Digboi Refinery adapted to environmental standards?

Digboi Refinery was the first among IOCL refineries to become BS-VI compliant, aligning with stringent emission norms to reduce environmental impact.

What is the current refining capacity of Digboi Refinery?

The refinery has a refining capacity of 0.65 million metric tonnes per annum (MMTPA).

Are there any upcoming projects for Digboi Refinery?

Yes, there is an approved expansion project to increase the refining capacity to 1.0 MMTPA, with a target commissioning date by March 2026.

What products are produced by Digboi Refinery?

The refinery produces major petroleum products, including fuels, wax, bitumen, and a range of specialty products.

How does Digboi Refinery contribute to the local community?

The refinery has been carrying out various developmental activities in the region, upholding its commitment towards the community as a good corporate citizen.

What is the historical importance of Digboi town?

Digboi is known as the birthplace of the oil industry in India, with the discovery of oil dating back to the late 19th century, leading to the establishment of the refinery in 1901.

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