Answer: Option D
India is a developing country with a large population and a fast-growing economy, making energy demand a key driver for its development. Petroleum is a major source of energy in India, and the country is one of the world's largest consumers of petroleum products. India is also among the top 10 crude oil importers in the world. Let's understand the petroleum scenario in India and why option D is the correct answer.
Petroleum in India:Petroleum, also known as crude oil, is a naturally occurring liquid composed mainly of hydrocarbons. It is refined to produce various products like petrol, diesel, LPG, aviation turbine fuel, lubricating oil, and others. The oil industry in India started in 1867 in Digboi, Assam, with the discovery of oil by Assam Oil Company. Today, India has a well-established oil and gas industry, with various public and private sector companies operating in the exploration, production, refining, marketing, and distribution of petroleum products.
Petroleum Production:India is not a major producer of crude oil and relies heavily on imports to meet its domestic demand. However, the country has several oil-producing states, including Andhra Pradesh and Tamil Nadu. Let's look at some facts about petroleum production in these states.
Andhra Pradesh:

• Krishna-Godavari (KG) Basin in Andhra Pradesh is one of the most important petroleum-producing basins in India.
• The basin covers an area of about 50,000 sq. km and is located in the eastern offshore region of India.
• The basin has reserves of about 4 trillion cubic feet (tcf) of natural gas and 1.2 billion barrels of oil.
• The basin has several oil and gas fields, including D6, which is the largest gas field in India.

Tamil Nadu:

• Tamil Nadu has several small oil and gas fields, with most of them located in the Cauvery Basin in the southern part of the state.
• The Cauvery Basin covers an area of about 35,000 sq. km and is located in the offshore and onshore areas of Tamil Nadu and Puducherry.
• The basin has reserves of about 1.5 tcf of natural gas and 400 million barrels of oil.
• The basin has several oil and gas fields, including PY-3, which is the largest oil field in Tamil Nadu.

Conclusion:To sum up, Andhra Pradesh and Tamil Nadu are two of the major petroleum-producing states in India. The Krishna-Godavari Basin in Andhra Pradesh and the Cauvery Basin in Tamil Nadu have significant reserves of oil and gas. However, India still relies heavily on imports to meet its domestic demand for petroleum products.