Oil Storage

Oil Storage I
Description	Increases Oil capacity to 1,000.
Obtained from	Crafting
Materials	1,000
Level	22 Crafting
XP	450

Oil Storage II
Description	Increases Oil capacity to 20,000.
Obtained from	Crafting
Materials	20,000
Level	33 Crafting
XP	800

Oil Storage III
Description	Increases Oil capacity to 100,000.
Obtained from	Crafting
Materials	50,000
Level	45 Crafting
XP	?

Oil Storage IV
Description	Increases Oil capacity to 250,000.
Obtained from	Crafting
Materials	100,000
Level	61 Crafting
XP	?

Oil Storage V
Description	Increases Oil capacity to 600,000.
Obtained from	Crafting
Materials	400,000
Level	77 Crafting
XP	6,700

Oil Storage VI
Description	Increases Oil capacity to 1,000,000.
Obtained from	Crafting
Materials	1,000,000
Level	82 Crafting
XP	9855

The Oil Storage units are Buildings that allow a larger maximum amount of Oil to be stored. There are currently six tiers of Oil Storage units that can be Crafted, with each increasing the maximum Oil storage available. Having more Oil allows you to run Mining Machinery at a rate higher than your Oil production rate, as well as use some Machines or Equipment that that require an up-front Oil cost, like the Rocket, Robot, Smelting Ores in the Furnace, and Burning Logs in the Foundry. To build higher tiers of Oil Storage, you must first have built all the previous tiers.

Unit	Maximum Oil	Level	Materials
	5,000	22	1,000
	20,000	33	20,000
	100,000	45	50,000
	250,000	61	100,000
	600,000	77	400,000
	1,000,000	82	1,000,000