(a) the Minister is of the opinion that a petroleum exploration permittee is entitled to nominate a block or blocks under section 112(1) or (2); and
(b) the permittee has not done so—
the Minister may, by written notice given to the permittee, require the permittee to nominate the block or blocks within—
(c) 90 days after the day on which the notice was given; or
(d) such longer period, not more than 180 days after the day on which the notice was given, as the Minister allows.
(2) The Minister may allow a longer period under subsection (1)(d) only on written application made by the permittee within the period of 90 days mentioned in subsection (1)(c).
(3) If the permittee does not comply with the requirement, the Minister may, by written notice given to the permittee, nominate the block or blocks for declaration as a location.