Where:
(a) a State and the person or persons who produce market petroleum from a production unit have entered into a relevant resource rent royalty agreement providing for a royalty in respect of market petroleum produced from that unit on or after 1 July in a year after 1984 specified in the agreement; and
(b) the State requests the Commonwealth to enter into a relevant revenue - sharing agreement in respect of royalty payable under that relevant resource rent royalty agreement;
the Minister may arrange for the Commonwealth to enter into that relevant revenue - sharing agreement with the State.