Oil well

An oil well is a drillhole boring in Earth that is designed to bring petroleum oil hydrocarbons to the surface. Usually some natural gas is released as associated petroleum gas along with the oil. A well that is designed to produce only gas may be termed a gas well.

Wells are created by drilling down into an oil or gas reserve and if necessary equipped with extraction devices such as pumpjacks.
Creating the wells can be an expensive process, costing at least hundreds of thousands of dollars, and costing much more when in difficult-to-access locations, e.
g.

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Source: Wikipedia · Image: Wikimedia Commons · Public domain

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