Oil India, is a public sector undertaking (PSU) with a `Mini Ratna Category I` status since 1997. It is the second largest national oil and gas company in India as measured by total proved plus probable oil and natural gas reserves and production and is primarily engaged in the exploration, development, production and transportation of crude oil and natural gas onshore in India. It has proven and probable (2P) reserves of around 974.2 million barrels of oil equivalent (mboe). In FY2009, the company produced 10.4% of India`s crude oil and 6.9% of its natural gas. The majority of the company`s oil and gas reserves are located onshore in the Upper Assam Basin in the states of Assam and Arunachal Pradesh with some portion of its natural gas reserves in Rajasthan. OIL is also present internationally through exploration of crude oil and natural gas in Egypt, Gabon, Iran, Libya, Nigeria, Timor Leste and Yemen. However, none of the international fields is operational as of now.