The state-owned giant powering nearly half of India's petroleum market

Nature · Published 2 October 2026 · Updated 25 October 2026 Swipe more like this →

In short: Indian Oil Corporation isn't just a company; it is a massive public sector pillar. From managing 11 refineries to operating a pipeline network spanning over 13,000 km, its reach defines the nation's energy infrastructure and shapes its geopolitical standing in the global oil trade.

Indian Oil Corporation Limited (IOCL) serves as India's largest government-owned oil producer. It operates across the entire hydrocarbon value chain, including exploration, production, refining, and marketing. The company is a dominant force in domestic infrastructure, accounting for 35% of national refining capacity and 71% of downstream sector pipelines by capacity. Its operations are so vast that it manages 11 of India's 23 refineries, providing a consolidated refining capacity of approximately 80.55 million tonnes per year.

The company's economic weight is reflected in its global standing and domestic profitability. In 2022, it was ranked 94th on the Fortune Global 500 list. It achieved record-breaking financial performance in the 2017–18 fiscal year, becoming India's most profitable government corporation with a profit of ₹21,346 crores. While it remains a state-controlled entity—with the Government of India holding roughly 51% to 57% of shares depending on the reporting period—it also maintains significant ties with private entities like ONGC and LIC.

Beyond domestic supply, Indian Oil navigates complex international waters. It has secured high-value deals with global giants like Royal Dutch Shell and Chevron for Asian supplies worth an estimated $20 billion annually. However, its operations have faced scrutiny regarding corporate social responsibility; the company has been criticized for maintaining activities in Russia despite international sanctions following the 2022 invasion of Ukraine. Simultaneously, it is pivoting toward a greener future by investing in aluminum-air battery technology and launching India's first electric charging stations.

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