I. An offshore oil field in the Gulf of Cambay is Mumbai High the oil operations are run by India’s oil and natural gas.it discovered in 1965.the oil is about 75% water.
II. An oil refinery in Bihar is Barauni refinery ,barauni is known as industrial capital of the state it is situated on the bank of river ganga.
Final Answer:
I. An offshore oil field in the Gulf of Cambay – Mumbai High
II. An oil refinery in Bihar – Barauni refinery