Oil India Limited (OIL) (nse|OIL, bse|533106) is an Indian public sector oil and gas company based in Assam, India under the administrative control of the Ministry of Petroleum and Natural Gas of the Government of India. OIL is engaged in the business of exploration, development and production of crude oil and natural gas, transportation of crude oil and production of liquid petroleum gas. The story of Oil India Limited (OIL) traces and symbolizes the development and growth of the Indian petroleum industry. From the discovery of crude oil in the far east of India at Digboi, Assam in 1889 to its present status as a fully integrated upstream petroleum company, OIL has come far, crossing many milestones.

The Company presently produces over 3.2 MMTPA (million tons per annum) of crude oil, over 5 MMSCMD of Natural Gas and over 50,000 Tones of LPG annually. Most of this emanates from its traditionally rich oil and gas fields concentrated in the Northeastern part of India and contribute to over 65% of total Oil&Gas produced in the region. The search for newer avenues has seen OIL spreading out its operations in onshore / offshore Orissa and Andaman, deserts of Rajasthan, plains of Uttar Pradesh, riverbeds of Brahmaputra and offshore Saurashtra. In Rajasthan, OIL discovered gas in 1988, heavy oil / bitumen in 1991 and started production of gas in 1996. The company has accumulated over a hundred years of experience in the field of oil and gas production, since the discovery of Digboi oilfield in 1889. It is possibly the  Wikipedia