88.10. For the purposes of this chapter, expenses incurred by a corporation, association, partnership or syndicate pursuant to an agreement under which those expenses are incurred in consideration for shares of the capital stock of a corporation that owned or controlled the mining rights, an option to purchase shares of the capital stock of a corporation that owned or controlled the mining rights, or a right to purchase shares in the capital stock of a corporation that was to be formed for the purpose of acquiring or controlling the mining rights are deemed not to be and never to have been expenses incurred on or in respect of exploring or drilling for petroleum or natural gas in Canada or in searching for minerals in Canada.