Crude Oil in Assam: History, Fields, Production & Economy | Banjit Sir | APSC 2026

Описание: Assam is the cradle of India’s petroleum industry, and understanding its oil geography is crucial for both APSC Prelims and Mains.
In this class, Banjit Sir provides a comprehensive, exam-focused breakdown of the crude oil sector, covering everything from its historical roots to present-day production challenges.

----This Class Covers----

Historical Background :-

Discovery of oil at *Digboi (1889)* – Asia’s first refinery
Growth of Assam’s petroleum industry under British rule
Expansion to new basins and fields in post-Independence India

2️⃣ Major Oilfields of Assam :-

Digboi, Duliajan, Naharkatia, Moran, Lakwa, Galeki, Rudrasagar, Baghjan, Kusijan
Key producing basins: Assam–Arakan Basi, Upper Assam Shelf, Naga Schuppen Belt

We decode:-

Geological features
Production potential
APSC-asked factual points

Production & Economy :-

Assam’s contribution to India’s crude output
Role of ONGC, Oil India Limited (OIL), and Numaligarh Refinery Limited (NRL)
Refinery capacities: Digboi, Guwahati, Numaligarh, Bongaigaon
Crude oil’s link with Assam’s economy, employment, and industrial growth

Environmental & Social Dimensions :-

Oil spills, gas leaks, land subsidence
Community-industry conflicts in sensitive ecological zones
Hydrocarbon extraction in biosensitive areas


Section: Baghjan Tragedy (2020) :-

This class also discusses the Baghjan Gas Blowout , one of India’s worst industrial disasters:

Date: 27 May 2020 (OIL Well No. 5 blowout)
Location: Baghjan, Tinsukia (near Dibru-Saikhowa National Park & Maguri Beel)
Cause: Uncontrolled gas leak during workover operations

Impact:-

Massive fire for over 5 months
Damage to biodiversity of Maguri Motapung Wetland
Displacement of thousands of local residents
Loss of property, livelihoods, fish species & migratory bird habitat
Highlighted gaps in oilfield safety, disaster preparedness & environmental oversight

This incident is important for APSC’s questions on:-

Environment
Ecology
Energy sector governance
Disaster management

This Class Is Important for APSC 2026 :-

Crude oil of Assam is a high-probability topic in both Prelims and Mains
Expect questions on fields, refineries, disasters, and Assam-Arakan Basin
Baghjan tragedy has appeared in multiple competitive exam discussions
Strengthens Geography, Economy, Environment & Assam-specific GK together


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