India has a very large oil industry, and the number of oil companies depends on how we define them. If we include everything—from exploration and drilling companies to refineries, distributors, retailers, and small local suppliers—the total runs into tens of thousands across the country.
However, when people talk about “oil companies,” they usually mean the major national and private sector players. In that case, India has a smaller group of well-known, established companies.
Some of the major oil companies in India include:
Indian Oil Corporation (IOC)

Oil and Natural Gas Corporation (ONGC)

Bharat Petroleum (BPCL)

Hindustan Petroleum (HPCL)

Reliance Industries (Reliance Petroleum)

Jio-BP (Reliance & BP joint venture)

Oil India Limited (OIL)

So overall:
There are thousands of oil-related companies in India, but only a few dozen large, recognized companies dominate the upstream and downstream oil sector.

Visit Us For More Info: https://exportersworlds.com/blog/top-20-oil-and-gas-companies-in-india