(1) Section 148(1), (3), example and (4), first, second and third mentions, 'quarterly period'—
omit, insert—
'royalty return period'.
(2) Section 148(4)(b)—
omit, insert—
'(b) the negative wellhead value may be deducted under subsection (1)(b)(ii) in a later royalty return period in the same annual return period.'.
(3) Section 148(6)—
omit.