For buildings of the same name in other Tropico games, see Oil Refinery.
Oil refineries are industrial buildings in Tropico 3 and Tropico 4. They refine ordinary crude oil into more useful and expensive products such as gasoline, kerosene, and asphalt. In addition, building an oil refinery will automatically build oil rigs over any nearby underwater sources of oil.
- Extra Storage: By default, an oil refinery can hold 10,000 units of Oil Products. For $8,000, the refinery can be expanded to hold a further 5,000 units.
- Wastewater Treatment: For $5,000 and 5 megawatts of power, equipment can be installed that allows water used in the oil refining process to be treated, reducing pollution caused by the refinery by 25%.
- Export All: By default, the oil refinery ships all products it creates.
- Withhold Petrol: The refinery begins stockpiling oil, shutting down when it gets too full. Withholding exports like this upsets the US.