Each producer, refiner, or wholesaler of motor fuel who supplies motor fuel to retail service station dealers:
(1) shall apply all equipment rentals uniformly to all retail service station dealers supplied; and
(2) during periods of shortage:
(i) shall apportion uniformly and equitably all gasoline and special fuel to all retail service station dealers supplied; and
(ii) may not discriminate among retail service station dealers supplied in their allotments.