(1) If, in relation to petroleum recovered during a royalty period, the value of the petroleum has not been agreed or determined under section 12, the State Minister may determine a provisional value.
(2) If:
(a) a provisional value of any petroleum has been determined under subsection ( 1); and
(b) the value of that petroleum has not yet been agreed or determined under section 12;
this Act has effect, in relation to that petroleum, as if:
(c) the provisional value of the petroleum were its value; and
(d) the determination of the provisional value were an agreement or determination under section 12.