There are quite a few Petroleum firms within the country.

Major Government Firms in Petroleum Sector

Bharat Petroleum Corporation Limited - The BPCL Company is a Fortune 500 firm that is engaged in Circulation and Refining of Petroleum in addition to the Marketing of Petroleum products.

List of Petroleum Companies in North Zone

Indian Oil Corporation Limited - The Indian Oil Corporation is an oil company that is owned by the Government of India. It is acknowledged as India’s chief commercial enterprise and ranks 125th in the 2010 list of the Fortune Global 500. Not only does this company supply cooking gas to numerous households in our country, the firm also has several Auto LPG Dispensing Stations all over the country.

Oil & Natural Gas Corporation Limited - The Oil & Natural Gas Corporation Ltd is owned by the Indian government. In addition to this, the firm is acknowledged as Asia’s largest and most dynamic firm that is engaged in the production as well as the exploration of oil. On top of this, the firm owns as well as operates above 11,000 kilometers of pipelines in our country.

List of Petroleum Companies in South Zone

Chennai Petroleum Corporation Limited - The Chennai Petroleum Corporation Limited (CPCL), previously known as the Madras Refineries Limited (MRL) is a joint undertaking between the AMOCO, National Iranian Oil Company and the Government of India. CPCL possesses two refineries, namely the Manali Refinery and the refinery that is located in Cauvery Basin, Nagapattinam.

Mangalore Refinery & Petrochemicals Limited - This is one amongst the most popular refineries in India. This firm specializes in crude oil production and also has a high degree in automation. In addition to this, the MRPL also has set  high standards for the protection of the environment and the society. The most important thing they have done for their surroundings is the Green Belt they have developed in order to blend the firm with the local flora.

List of Petroleum Companies in West Zone

Bongaigaon Refinery & Petrochemicals Limited - The Bongaigaon Refinery & Petrochemicals Limited (BRPL) is an oil refinery located in Assam. This firm is a subsidiary of the Indian Oil Corporation (IOC). In addition to the core crude processing refinery, the organization also has polyester and petrochemicals staple fiber plants. BRPL is acknowledged as one amongst the top ten refinery firms in India. A petrochemicals complex that includes a Xylene plant and Dimethyl Terephthalate plant is also  there within the BRPL organisation.