An old metal jerry can containing fuel for oil lamps.
In-game description

A jerry can is a large container which can hold up to 4 liters of kerosene.

Unlike lantern fuel, Jerry cans are not destroyed or generated in any way. They can only be found in the world and an empty Jerry can remains in the player's inventory when emptied.

A Jerry can in the player's inventory will collect any lantern fuel created from cooking fish if not full, preventing the spontaneous generation of a bottle of lantern fuel. It will also collect kerosene from harvesting a storm lantern.

Cooking Can openerCooking potRecycled can
Fire Starting
Starter FirestrikerMagnifying lens
Accelerant AccelerantJerry canLantern fuel
Ice Fishing Fishing tackleHookLine
Hand Tools
Standard HacksawHatchetHeavy hammerHunting knifePrybar
Improvised Improvised hatchetImprovised knife
Weapon Distress pistolHunting rifleSurvival bowStone
Ammunition Flare shellRifle roundSimple arrow
Lighting FlashlightStorm lanternTorch
Mending Quality toolsRifle cleaning kitSewing kitSimple toolsWhetstone
Sleep Bear skin bedrollBedroll
Story Bolt cuttersJeremiah's knifeScrap metal shard
Other CharcoalMountaineering ropeSnare