With one motion he extinguished the lamp and drew his sword.
~ The Hour of the Dragon
This viscous liquid is harvested from plants, animals, and the bowels of the earth itself. It has myriad uses, including fuel for fire. Oil lamps offer a long-lasting flame, taking humanity another rung up the ladder of civilization, combatting the dark that teems with predators.
The production of Oil in an Alchemist's Bench requires any Tier 3 Alchemist.