Changes

[[File:simcity smelting factory.jpg|300px400px|thumb|right|Mining City]][[File:Petroleum_city.jpg|300px400px|thumb|right|Drilling City]][[File:Electronics_city.jpg|300px400px|thumb|right|Electronics City]][[File:simcity trading city.jpg|300px400px|thumb|right|TradingCity]][[File:simcity gambling city.jpg|300px400px|thumb|right|Gambling City]]

Cities specialized in mining extract [[ore ]] and [[coal ]] for profit. To extract the minerals, [[Coal Mine|Coal]] and [[Ore Mine|Ore Mines ]] must be constructed directly above the corresponding deposits. Extracted ore and coal can be exported to the [[Global Market ]] for immediate profit. [[Coal Power Plants Plant]]s burn coal to generate [[power|electricity]]. A [[Smelting Factory|Smelting Factory ]] can be constructed to process ore and coal into more valuable resources: [[alloy ]] and [[metal]].

Cities specialized in Drilling extract and process oil for profit. To extract oil, [[oilOil 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]].