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[[File:Petroleum_city.jpg|400px|thumb|right|Petroleum City]]

Cities specialized in Petroleum extract and process oil for profit.

*Natural resources such as ore, coal and oil in a region are finite.

*Make sure to inspect the region to find where the oil deposits are before you claim your city.

Petroleum extracted from the ground can be processed into more valuable resources.

*A refinery can be built to convert petroleum into fuel and plastic.

Petroleum is one of the [[big businesses|big business]] specializations. It has it own global [[leaderboard]].

==Petroleum Structures==
Oil Well -

Petroleum HQ -

Oil Refinery -

[[Category:City Specializations]]