Step 1: Understanding the Concept:
This question tests knowledge of major mineral and energy resource locations in India.
Step 2: Detailed Explanation:
Mumbai High (now Mumbai Offshore Basin) is an offshore oilfield located in the Arabian Sea, approximately 176 kilometers off the coast of Mumbai, India. It was discovered in 1974 and is operated by the Oil and Natural Gas Corporation (ONGC). It has been the largest and most significant source of domestic oil and natural gas production for India for many decades. Therefore, it is famous for its vast Petroleum Reserves. The other options are incorrect; coal, iron ore, and copper are found in terrestrial mining sites, mainly in Peninsular India.
Step 3: Final Answer:
Mumbai High is famous for its Petroleum Reserves.