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Drilling
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[[File:Petroleum_city.jpg|400px|thumb|right|Petroleum City]]
[[File:simcity oil well.jpg|400px|thumb|right|Oil Well]][[File:simcity petroleum hq.jpg|400px|thumb|right|Petroleum HQ]][[File:simcity oil refinery.jpg|400px|thumb|right|Oil Refinery]]
Cities specialized in Drilling extract and process [[oil]] for profit.
==Petroleum Structures==
===Oil Well===
:''Main article: [[Oil Well]]''