(1)  Where a permittee or the Minister has nominated a block under section 35 , the Minister shall, by instrument published in the Gazette , declare –

(a) that block; and

(b) such of the blocks that immediately adjoin that block as are blocks in respect of which the permit is in force and are not included in a location –

to be a location for the purposes of this Part.

(2)  Where the registered holder of a permit that is in force in respect of a block or blocks declared under subsection (1) to be a location, by instrument in writing served on the Minister, requests that, for the reasons specified in the instrument, the declaration be revoked in respect of that block or one or more of those blocks, the Minister may, if he is of the opinion that those reasons are sufficient to justify his doing so, by instrument published in the Gazette , revoke the declaration in the manner requested.