Article 81
ART. 81. Right to establish a refinery may be ceded but concessionaire may be required to establish a refinery under- certain conditions.—An exploitation concessionaire may assign, transfer, or cede his right to establish a refinery in the Philippines granted him under article eleven of this Act in favor of any person qualified under the provisions of this Act, upon prior written permission of the Secretary of Agriculture and Natural Resources. However, the Secretary of Agriculture and Natural Resources may, after due study of the economic and technical problems involved on the part of the exploitation concessionaire and of the need of the Philippines for a suitable refinery, require an exploitation concessionaire, after he shall have developed a recoverable petroleum reserve of one hundred forty million barrels or more in any one or more of his concessions granted under this Act, capable of maintaining a production rate of ten thousand barrels a day for at least fifteen years, to establish in the Philippines a refinery of a capacity which shall be not less than ten thousand barrels per day.