Thlank oil was a component of Happy-Bore Medicated Dewormer, an anti-worm measure product sold by Galacti-Stok for use on the happabore species found on several planets in the Western Reaches. This oil was listed as an ingredient in an advertisement for the dewormer, which the scavenger Rey later incorporated into the survival guide she was writing before she left Jakku in 34 ABY. Happabores were among the native creatures of Jakku.