A tank of whale oil.
Whale oil is primarily stored and utilized in the form of specialized tanks, which power all of Dunwall's technology. Whale oil tanks that are exposed to heat or pressure will explode in a bright, hot flash, and as such, Corvo Attano can throw one of these tanks to serve as an improvised explosive.
Tanks carried by a guard will drop and explode when the guard is taken down, lethally or not, and alert nearby guards. Such guards, if taken down non-lethally, also have a chance to be killed by said explosion; it is advised to leave such guards alone if attempting a clean run.
Gallery
A glowing whale oil tank powering a tallboy.
Multiple whale oil tanks powering tallboys.
A whale oil tank powering a Wall of Light.
A guard carrying a whale oil tank.
Three whale oil tanks sit on a pool table. The whale oil closet can be seen in the background on the left.
A half-empty whale oil tank.
A whale oil tank cover.
A spare whale oil tank.
A whale oil tank powers both the door and the electrified tracks.
Directions for refilling empty tanks.
A whale oil tank dispenser and a refilling station.