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An Offshore Platform causes all worked coastal, sea, and ocean squares to produce one shield.

Civilopedia entry[]

Mankind's dependence on wood and coal as a main source of fuel ended when the first commercial oil well went into production in Pennsylvania in 1859. Crude oil could be refined into many different byproducts, and soon replaced wood and coal in many parts of the world. The growing dependence on oil caused the petroleum industry to grow rapidly and wells were drilled all over the world. Most wells were initially drilled on land, but after World War II it was found that many of the largest oil deposits could be found below the sea floor. Shallow water drilling from platforms supported by pylons resting on the seabed proved very successful. Today, large floating platforms can drill for oil at water depths of more than 3300 feet.

Civilization III Buildings
AirportAqueductBankBarracksCathedralCivil DefenseCoal PlantCoastal FortressColosseumCommercial DockCourthouseFactoryGranaryHarborHospitalHydro PlantLibraryManufacturing PlantMarketplaceMass Transit SystemNuclear PlantOffshore PlatformPalacePolice StationRecycling CenterResearch LabSAM Missile BatterySolar PlantSS CockpitSS Docking BaySS EngineSS Exterior CasingSS Fuel CellsSS Life Support SystemSS Planetary Party LoungeSS Stasis ChamberSS Storage-SupplySS ThrustersStock ExchangeTempleUniversityWalls