Coal liquefaction (research)
From Official Factorio Wiki
		| Coal liquefaction (research) | Edit | 
- Base game
 - Space Age mod
 
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 Cost  | 
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| ✖ 200 | |
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 Prototype type  | 
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 Internal name  | 
 coal-liquefaction  | 
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 Required technologies  | 
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 Effects  | 
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 Cost  | 
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| ✖ 500 | |
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 Prototype type  | 
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 Internal name  | 
 coal-liquefaction  | 
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 Required technologies  | 
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 Effects  | 
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Coal liquefaction allows the player to turn excess coal into oil processing products.
In Space Age, Calcite processing (research)
 enables a simpler but less efficient recipe, Simple coal liquefaction
, that does not depend on refined oil already being available.