# Which is the world’s oldest operating oil refinery? with Answer - General Knowledge MCQs | TestPrep

> Solved MCQ: Which is the world’s oldest operating oil refinery? Correct Answer: B. Digboi. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Which is the world’s oldest operating oil refinery?

Direct Answer & Quick Reference

The correct option is **B. Digboi**.

Digboi is known as the Oil City of Assam where the first oil well in Asia was drilled. The first refinery was started here as early as 1901. Digboi has the oldest oil well in opera...

A. Bahamas

B. Digboi **(Correct Answer)**

C. Texas

D. Basra

✨ Explain with AI

Verified Key: B. Digboi
Solved by 4,623+ students

**Detailed Explanation & Reference:**

Digboi is known as the Oil City of Assam where the first oil well in Asia was drilled. The first refinery was started here as early as 1901. Digboi has the oldest oil well in operation. World’s oldest oil refinery in Assam turns 100. The world’s oldest operating oil refinery in the northeastern state of Assam celebrated its centenary with a pledge to produce high quality diesel, wax and other petrochemicals.

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