Mineral oil and natural gas are important mineral resources found in Gujarat. Where are their major reserves located?

The other options are incorrect because:

• The Kutch region is a desert region in the northwestern part of Gujarat. It does not have any major oil or natural gas reserves.
• The Sabarmati basin is a river basin in the northern part of Gujarat. It does have some oil and natural gas reserves, but they are not as significant as those in the Gulf of Khambhat.
• The Saurashtra region is a peninsula in the western part of Gujarat. It does not have any major oil or natural gas reserves.