Small bottle of kerosene
In-game description

Lantern fuel is a container of kerosene fuel for the storm lantern which can also be used as an accelerant for starting fires. One container of lantern fuel can hold a maximum of 0.5 liters.

Unlike the Jerry can, when the container is emptied, it is spontaneously removed from the player's inventory, and then generated when harvesting a storm lantern, or from cooking fish. Lantern fuel features the fictional brand name "Ever-flame," and the container lists the volume as "350 mL" or 0.35 L, while a full container of lamp fuel can actually hold up to 0.5 liters.

Curiously, the in-game description of lantern fuel will always describe lantern fuel as "small bottle of kerosene" even when a container is generated from cooking fish. Kerosene is actually a petroleum product and is created from the processing of crude oil.
Ammunition Flare shellRifle ammunitionRifle roundSimple arrow
Bedrolls BedrollBear skin bedroll
Kerosene Jerry canLantern fuel