Section 37 in The Petroleum Concession Rules, 1949
37. Right to a mining lease .-On or before the determination of his licence, the licensee shall have the exclusive right to a mining lease or leases for petroleum or natural gas over such part of the land covered by the licence as he may desire, but subject to the rules in force at the time of grant to him of the exploring licence, if any, or the prospecting licence.
