Cities specialized in Drilling extract and process oil for profit. To extract oil, Oil Well must be constructed above oil reservoirs. Extracted oil can be exported to the Global Market for immediate profit. Oil Power Plants burn oil to generate electricity. Oil refinery can be constructed to process oil into more valuable resources: fuel and plastic.
- Be sure to inspect the cities' resource stats and resource data maps to find where the oil reservoirs are before you claim your city and zone your districts.
- Main article: Oil Well
- Main article: Petroleum HQ
- Main article: Oil Refinery